2022-02 spring-00/architecture-origins added

2022-02/spring-00/architecture-origins/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/pom.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>architecture-origins</artifactId>
+    <version>1.0</version>
+
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>solution01</module>
+        <module>solution02_codeface</module>
+        <module>solution03_kiss</module>
+        <module>solution04_kiss</module>
+        <module>solution05_dry</module>
+        <module>solution06_dry</module>
+        <module>solution07_srp</module>
+        <module>solution08_srp</module>
+        <module>solution09_dip</module>
+        <module>solution10_ocp_isp</module>
+    </modules>
+</project>

2022-02/spring-00/architecture-origins/solution01/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution01/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution01</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution01/src/main/java/ru/otus/Main.java

@@ -0,0 +1,65 @@
+package ru.otus;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.stream.IntStream;
+
+public class Main {
+
+    public static void main(String[] args) {
+        List<String> strings = new ArrayList<>();
+        Scanner sc = new Scanner(System.in);
+
+        while (true) {
+            System.out.println("Выберите одно из следующих действий...");
+            System.out.println("1. Вывести все заметки");
+            System.out.println("2. Добавить заметку");
+            System.out.println("3. Изменить заметку");
+            System.out.println("4. Удалить заметку");
+            System.out.println("5. Выйти");
+
+            try {
+                int i = Integer.parseInt(sc.nextLine());
+
+                if (i == 1) {
+                    System.out.println("Заметки:");
+                    IntStream.range(1, strings.size() + 1)
+                            .mapToObj(k -> k + " | " + strings.get(k - 1))
+                            .forEach(System.out::println);
+                    System.out.println();
+                } else if (i == 2) {
+                    System.out.println("Введите текст заметки...");
+                    String s = sc.nextLine();
+                    strings.add(LocalDateTime.now() + " | " + s);
+                } else if (i == 3) {
+                    System.out.println("Введите номер изменяемой заметки...");
+                    int k = Integer.parseInt(sc.nextLine());
+                    ;
+                    if (k > 0 && k <= strings.size()) {
+                        System.out.println("Введите текст заметки...");
+                        String s = sc.nextLine();
+                        strings.set(k - 1, LocalDateTime.now() + " | " + s);
+                    } else {
+                        System.out.println("Введен несуществующий номер заметки");
+                    }
+                } else if (i == 4) {
+                    System.out.println("Введите номер удаляемой заметки...");
+                    int k = Integer.parseInt(sc.nextLine());
+                    if (k > 0 && k <= strings.size()) {
+                        strings.remove(k - 1);
+                    } else {
+                        System.out.println("Введен несуществующий номер заметки");
+                    }
+                } else if (i == 5) {
+                    break;
+                } else {
+                    System.out.println("Введен неверный номер опции");
+                }
+            } catch (NumberFormatException e) {
+                System.out.println("Ошибка при вводе числа");
+            }
+        }
+    }
+}

2022-02/spring-00/architecture-origins/solution02_codeface/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution02_codeface/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution02_codeface</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution02_codeface/src/main/java/ru/otus/Main.java

@@ -0,0 +1,79 @@
+package ru.otus;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.stream.IntStream;
+
+// Имена переменных, константы, выпрямление кода
+public class Main {
+
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    public static void main(String[] args) {
+        var notes = new ArrayList<String>();
+        var userInput = new Scanner(System.in);
+
+        while (true) {
+            System.out.println("Выберите одно из следующих действий...");
+            System.out.println("1. Вывести все заметки");
+            System.out.println("2. Добавить заметку");
+            System.out.println("3. Изменить заметку");
+            System.out.println("4. Удалить заметку");
+            System.out.println("5. Выйти");
+
+            try {
+                var selectedOptionNumber = Integer.parseInt(userInput.nextLine());
+
+                if (selectedOptionNumber == MENU_OPTION_SHOW_ALL_NOTES) {
+                    System.out.println("Заметки:");
+                    IntStream.range(1, notes.size() + 1)
+                            .mapToObj(k -> k + " | " + notes.get(k - 1))
+                            .forEach(System.out::println);
+                    System.out.println();
+                } else if (selectedOptionNumber == MENU_OPTION_ADD_NEW_NOTE) {
+                    System.out.println("Введите текст заметки...");
+                    var noteText = userInput.nextLine();
+                    var finalNoteText = LocalDateTime.now() + " | " + noteText;
+                    notes.add(finalNoteText);
+                } else if (selectedOptionNumber == MENU_OPTION_UPDATE_NOTE) {
+                    System.out.println("Введите номер изменяемой заметки...");
+
+                    var updatedNoteNumber = Integer.parseInt(userInput.nextLine());
+
+                    if (updatedNoteNumber <= 0 || updatedNoteNumber > notes.size()) {
+                        System.out.println("Введен несуществующий номер заметки");
+                        continue;
+                    }
+
+                    System.out.println("Введите текст заметки...");
+                    var noteText = userInput.nextLine();
+                    var finalNoteText = LocalDateTime.now() + " | " + noteText;
+                    notes.set(updatedNoteNumber - 1, finalNoteText);
+                } else if (selectedOptionNumber == MENU_OPTION_DELETE_NOTE) {
+                    System.out.println("Введите номер удаляемой заметки...");
+
+                    var deletedNoteNumber = Integer.parseInt(userInput.nextLine());
+                    if (deletedNoteNumber <= 0 || deletedNoteNumber > notes.size()) {
+                        System.out.println("Введен несуществующий номер заметки");
+                        continue;
+                    }
+
+                    notes.remove(deletedNoteNumber - 1);
+                } else if (selectedOptionNumber == MENU_OPTION_EXIT) {
+                    break;
+                } else {
+                    System.out.println("Введен неверный номер опции");
+                }
+            } catch (NumberFormatException e) {
+                System.out.println("Ошибка при вводе числа");
+            }
+
+        }
+    }
+}

2022-02/spring-00/architecture-origins/solution03_kiss/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution03_kiss/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution03_kiss</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution03_kiss/src/main/java/ru/otus/Main.java

@@ -0,0 +1,102 @@
+package ru.otus;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.stream.IntStream;
+
+// Вынос печати меню, чтения пункта меню и выполнения команд в методы
+public class Main {
+
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    public static void main(String[] args) {
+        var notes = new ArrayList<String>();
+        var userInput = new Scanner(System.in);
+
+        while (true) {
+            outputMenu();
+            try {
+                var selectedMenuItem = readSelectedOptionNumberFrom(userInput);
+
+                if (selectedMenuItem == MENU_OPTION_SHOW_ALL_NOTES) {
+                    showAllNotes(notes);
+                } else if (selectedMenuItem == MENU_OPTION_ADD_NEW_NOTE) {
+                    addNewNote(userInput, notes);
+                } else if (selectedMenuItem == MENU_OPTION_UPDATE_NOTE) {
+                    updateNote(userInput, notes);
+                } else if (selectedMenuItem == MENU_OPTION_DELETE_NOTE) {
+                    deleteNote(userInput, notes);
+                } else if (selectedMenuItem == MENU_OPTION_EXIT){
+                    break;
+                } else {
+                    System.out.println("Введен неверный номер опции");
+                }
+            } catch (NumberFormatException e) {
+                System.out.println("Ошибка при вводе числа");
+            }
+
+        }
+    }
+
+    private static void outputMenu(){
+        System.out.println("Выберите одно из следующих действий...");
+        System.out.println("1. Вывести все заметки");
+        System.out.println("2. Добавить заметку");
+        System.out.println("3. Изменить заметку");
+        System.out.println("4. Удалить заметку");
+        System.out.println("5. Выйти");
+    }
+
+    private static int readSelectedOptionNumberFrom(Scanner userInput) {
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    private static void showAllNotes(List<String> notes) {
+        System.out.println("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> k + " | " + notes.get(k - 1))
+                .forEach(System.out::println);
+        System.out.println();
+    }
+
+    private static void addNewNote(Scanner userInput, List<String> notes) {
+        System.out.println("Введите текст заметки...");
+        var noteText = userInput.nextLine();
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.add(finalNoteText);
+    }
+
+    private static void updateNote(Scanner userInput, List<String> notes) {
+        System.out.println("Введите номер изменяемой заметки...");
+
+        var updatedNoteNumber = Integer.parseInt(userInput.nextLine());;
+        if (updatedNoteNumber <= 0 || updatedNoteNumber > notes.size()) {
+            System.out.println("Введен несуществующий номер заметки");
+            return;
+        }
+
+        System.out.println("Введите текст заметки...");
+        var noteText = userInput.nextLine();
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.set(updatedNoteNumber - 1, finalNoteText);
+    }
+
+    private static void deleteNote(Scanner userInput, List<String> notes) {
+        System.out.println("Введите номер удаляемой заметки...");
+
+        var deletedNoteNumber = Integer.parseInt(userInput.nextLine());
+        if (deletedNoteNumber <= 0 || deletedNoteNumber > notes.size()) {
+            System.out.println("Введен несуществующий номер заметки");
+            return;
+        }
+
+        notes.remove(deletedNoteNumber - 1);
+    }
+
+}

2022-02/spring-00/architecture-origins/solution04_kiss/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution04_kiss/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution04_kiss</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution04_kiss/src/main/java/ru/otus/Main.java

@@ -0,0 +1,107 @@
+package ru.otus;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.IntStream;
+
+// Уменьшение вложенности в main за счет выноса обработки команд в метод + executionFlag
+public class Main {
+
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    public static void main(String[] args) {
+        var notes = new ArrayList<String>();
+        var userInput = new Scanner(System.in);
+
+        var executionFlag = new AtomicBoolean(true);
+        while (executionFlag.get()) {
+            outputMenu();
+            try {
+                var selectedMenuItem = readSelectedOptionNumberFrom(userInput);
+                processMenuCommand(selectedMenuItem, executionFlag, userInput, notes);
+            } catch (NumberFormatException e) {
+                System.out.println("Ошибка при вводе числа");
+            }
+        }
+    }
+
+    private static void outputMenu(){
+        System.out.println("Выберите одно из следующих действий...");
+        System.out.println("1. Вывести все заметки");
+        System.out.println("2. Добавить заметку");
+        System.out.println("3. Изменить заметку");
+        System.out.println("4. Удалить заметку");
+        System.out.println("5. Выйти");
+    }
+
+    private static void processMenuCommand(int selectedMenuItem, AtomicBoolean executionFlag,
+                                           Scanner userInput, List<String> notes) {
+        if (selectedMenuItem == MENU_OPTION_SHOW_ALL_NOTES) {
+            showAllNotes(notes);
+        } else if (selectedMenuItem == MENU_OPTION_ADD_NEW_NOTE) {
+            addNewNote(userInput, notes);
+        } else if (selectedMenuItem == MENU_OPTION_UPDATE_NOTE) {
+            updateNote(userInput, notes);
+        } else if (selectedMenuItem == MENU_OPTION_DELETE_NOTE) {
+            deleteNote(userInput, notes);
+        } else if (selectedMenuItem == MENU_OPTION_EXIT){
+            executionFlag.set(false);
+        } else {
+            System.out.println("Введен неверный номер опции");
+        }
+    }
+
+    private static int readSelectedOptionNumberFrom(Scanner userInput) {
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    private static void showAllNotes(List<String> notes) {
+        System.out.println("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> k + " | " + notes.get(k - 1))
+                .forEach(System.out::println);
+        System.out.println();
+    }
+
+    private static void addNewNote(Scanner userInput, List<String> notes) {
+        System.out.println("Введите текст заметки...");
+        var noteText = userInput.nextLine();
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.add(finalNoteText);
+    }
+
+    private static void updateNote(Scanner userInput, List<String> notes) {
+        System.out.println("Введите номер изменяемой заметки...");
+
+        var updatedNoteNumber = Integer.parseInt(userInput.nextLine());;
+        if (updatedNoteNumber <= 0 || updatedNoteNumber > notes.size()) {
+            System.out.println("Введен несуществующий номер заметки");
+            return;
+        }
+
+        System.out.println("Введите текст заметки...");
+        var noteText = userInput.nextLine();
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.set(updatedNoteNumber - 1, finalNoteText);
+    }
+
+    private static void deleteNote(Scanner userInput, List<String> notes) {
+        System.out.println("Введите номер удаляемой заметки...");
+
+        var deletedNoteNumber = Integer.parseInt(userInput.nextLine());
+        if (deletedNoteNumber <= 0 || deletedNoteNumber > notes.size()) {
+            System.out.println("Введен несуществующий номер заметки");
+            return;
+        }
+
+        notes.remove(deletedNoteNumber - 1);
+    }
+
+}

2022-02/spring-00/architecture-origins/solution05_dry/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution05_dry/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution05_dry</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution05_dry/src/main/java/ru/otus/Main.java

@@ -0,0 +1,118 @@
+package ru.otus;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.IntStream;
+
+// Вынос логики ввода-вывода
+public class Main {
+
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    public static void main(String[] args) {
+        var notes = new ArrayList<String>();
+        var userInput = new Scanner(System.in);
+
+        var executionFlag = new AtomicBoolean(true);
+        while (executionFlag.get()) {
+            outputMenu();
+            try {
+                var selectedMenuItem = readSelectedOptionNumberFrom(userInput);
+                processMenuCommand(selectedMenuItem, executionFlag, userInput, notes);
+            } catch (NumberFormatException e) {
+                outputString("Ошибка при вводе числа");
+            }
+        }
+    }
+
+    private static void outputMenu(){
+        outputString("Выберите одно из следующих действий...");
+        outputString("1. Вывести все заметки");
+        outputString("2. Добавить заметку");
+        outputString("3. Изменить заметку");
+        outputString("4. Удалить заметку");
+        outputString("5. Выйти");
+    }
+
+    private static void processMenuCommand(int selectedMenuItem, AtomicBoolean executionFlag,
+                                           Scanner userInput, List<String> notes) {
+        if (selectedMenuItem == MENU_OPTION_SHOW_ALL_NOTES) {
+            showAllNotes(notes);
+        } else if (selectedMenuItem == MENU_OPTION_ADD_NEW_NOTE) {
+            addNewNote(userInput, notes);
+        } else if (selectedMenuItem == MENU_OPTION_UPDATE_NOTE) {
+            updateNote(userInput, notes);
+        } else if (selectedMenuItem == MENU_OPTION_DELETE_NOTE) {
+            deleteNote(userInput, notes);
+        } else if (selectedMenuItem == MENU_OPTION_EXIT){
+            executionFlag.set(false);
+        } else {
+            outputString("Введен неверный номер опции");
+        }
+    }
+
+    private static int readSelectedOptionNumberFrom(Scanner userInput) {
+        return readInt(userInput);
+    }
+
+    private static void showAllNotes(List<String> notes) {
+        outputString("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> k + " | " + notes.get(k - 1))
+                .forEach(Main::outputString);
+        outputString("");
+    }
+
+    private static void addNewNote(Scanner userInput, List<String> notes) {
+        var noteText = readStringWithPrompt(userInput, "Введите текст заметки...");
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.add(finalNoteText);
+    }
+
+    private static void updateNote(Scanner userInput, List<String> notes) {
+        int updatedNoteNumber = readIntWithPrompt(userInput, "Введите номер изменяемой заметки...");
+        if (updatedNoteNumber <= 0 || updatedNoteNumber > notes.size()) {
+            outputString("Введен несуществующий номер заметки");
+            return;
+        }
+        var noteText = readStringWithPrompt(userInput, "Введите текст заметки...");
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.set(updatedNoteNumber - 1, finalNoteText);
+    }
+
+    private static void deleteNote(Scanner userInput, List<String> notes) {
+        var deletedNoteNumber = readIntWithPrompt(userInput, "Введите номер удаляемой заметки...");
+        if (deletedNoteNumber <= 0 || deletedNoteNumber > notes.size()) {
+            outputString("Введен несуществующий номер заметки");
+            return;
+        }
+
+        notes.remove(deletedNoteNumber - 1);
+    }
+
+    private static void outputString(String s){
+        System.out.println(s);
+    }
+
+    private static int readInt(Scanner userInput){
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    private static int readIntWithPrompt(Scanner userInput, String prompt){
+        outputString(prompt);
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    private static String readStringWithPrompt(Scanner userInput, String prompt){
+        outputString(prompt);
+        return userInput.nextLine();
+    }
+
+}

2022-02/spring-00/architecture-origins/solution06_dry/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution06_dry/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution06_dry</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution06_dry/src/main/java/ru/otus/Main.java

@@ -0,0 +1,127 @@
+package ru.otus;
+
+import ru.otus.exceptions.MenuItemIndexOutOfBoundsException;
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.IntStream;
+
+// Вынос проверки существования выбранной команды в метод checkNoteNumber,
+// централизованная обработка ошибок
+public class Main {
+
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    public static void main(String[] args) {
+        var notes = new ArrayList<String>();
+        var userInput = new Scanner(System.in);
+
+        var executionFlag = new AtomicBoolean(true);
+        while (executionFlag.get()) {
+            outputMenu();
+            try {
+                var selectedMenuItem = readSelectedOptionNumberFrom(userInput);
+                processMenuCommand(selectedMenuItem, executionFlag, userInput, notes);
+
+            } catch (NumberFormatException e) {
+                outputString("Ошибка при вводе числа");
+            } catch (MenuItemIndexOutOfBoundsException e) {
+                outputString("Введен неверный номер опции");
+            } catch (NoteIndexOutOfBoundsException e) {
+                outputString("Введен несуществующий номер заметки");
+            }
+        }
+    }
+
+    private static void outputMenu(){
+        outputString("Выберите одно из следующих действий...");
+        outputString("1. Вывести все заметки");
+        outputString("2. Добавить заметку");
+        outputString("3. Изменить заметку");
+        outputString("4. Удалить заметку");
+        outputString("5. Выйти");
+    }
+
+    private static void processMenuCommand(int selectedMenuItemIndex, AtomicBoolean executionFlag,
+                                           Scanner userInput, List<String> notes) {
+        if (selectedMenuItemIndex == MENU_OPTION_SHOW_ALL_NOTES) {
+            showAllNotes(notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_ADD_NEW_NOTE) {
+            addNewNote(userInput, notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_UPDATE_NOTE) {
+            updateNote(userInput, notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_DELETE_NOTE) {
+            deleteNote(userInput, notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_EXIT){
+            executionFlag.set(false);
+        } else {
+            throw new MenuItemIndexOutOfBoundsException("Given menu item index is out of range");
+        }
+    }
+
+    private static int readSelectedOptionNumberFrom(Scanner userInput) {
+        return readInt(userInput);
+    }
+
+    private static void showAllNotes(List<String> notes) {
+        outputString("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> k + " | " + notes.get(k - 1))
+                .forEach(Main::outputString);
+        outputString("");
+    }
+
+    private static void addNewNote(Scanner userInput, List<String> notes) {
+        var noteText = readStringWithPrompt(userInput, "Введите текст заметки...");
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.add(finalNoteText);
+    }
+
+    private static void checkNoteNumber(int noteNumber, List<String> notes) {
+        if (noteNumber <= 0 || noteNumber > notes.size()) {
+            throw new NoteIndexOutOfBoundsException("Given number of note is out of range");
+        }
+    }
+
+    private static void updateNote(Scanner userInput, List<String> notes) {
+        var updatedNoteNumber = readIntWithPrompt(userInput, "Введите номер изменяемой заметки...");
+        checkNoteNumber(updatedNoteNumber, notes);
+
+        var noteText = readStringWithPrompt(userInput, "Введите текст заметки...");
+        var finalNoteText = LocalDateTime.now() + " | " + noteText;
+        notes.set(updatedNoteNumber - 1, finalNoteText);
+    }
+
+    private static void deleteNote(Scanner userInput, List<String> notes) {
+        var deletedNoteNumber = readIntWithPrompt(userInput, "Введите номер удаляемой заметки...");
+        checkNoteNumber(deletedNoteNumber, notes);
+
+        notes.remove(deletedNoteNumber - 1);
+    }
+
+    private static void outputString(String s){
+        System.out.println(s);
+    }
+
+    private static int readInt(Scanner userInput){
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    private static int readIntWithPrompt(Scanner userInput, String prompt){
+        outputString(prompt);
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    private static String readStringWithPrompt(Scanner userInput, String prompt){
+        outputString(prompt);
+        return userInput.nextLine();
+    }
+}

2022-02/spring-00/architecture-origins/solution06_dry/src/main/java/ru/otus/exceptions/MenuItemIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class MenuItemIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public MenuItemIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution06_dry/src/main/java/ru/otus/exceptions/NoteIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class NoteIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public NoteIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution07_srp/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution07_srp/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution07_srp</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution07_srp/src/main/java/ru/otus/Main.java

@@ -0,0 +1,109 @@
+package ru.otus;
+
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+import ru.otus.exceptions.MenuItemIndexOutOfBoundsException;
+import ru.otus.model.Note;
+import ru.otus.services.ConsoleIOService;
+import ru.otus.services.NoteConverter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.IntStream;
+
+// Note, ConsoleIOService, NoteConverter
+public class Main {
+
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    public static void main(String[] args) {
+        var notes = new ArrayList<Note>();
+        var ioService = new ConsoleIOService();
+
+        var executionFlag = new AtomicBoolean(true);
+        while (executionFlag.get()) {
+            outputMenu(ioService);
+            try {
+                var selectedMenuItem = readSelectedOptionNumberFrom(ioService);
+                processMenuCommand(selectedMenuItem, executionFlag, ioService, notes);
+
+            } catch (NumberFormatException e) {
+                ioService.outputString("Ошибка при вводе числа");
+            } catch (MenuItemIndexOutOfBoundsException e) {
+                ioService.outputString("Введен неверный номер опции");
+            } catch (NoteIndexOutOfBoundsException e) {
+                ioService.outputString("Введен несуществующий номер заметки");
+            }
+        }
+    }
+
+    private static void outputMenu(ConsoleIOService ioService){
+        ioService.outputString("Выберите одно из следующих действий...");
+        ioService.outputString("1. Вывести все заметки");
+        ioService.outputString("2. Добавить заметку");
+        ioService.outputString("3. Изменить заметку");
+        ioService.outputString("4. Удалить заметку");
+        ioService.outputString("5. Выйти");
+    }
+
+    private static void processMenuCommand(int selectedMenuItemIndex, AtomicBoolean executionFlag,
+                                           ConsoleIOService ioService, List<Note> notes) {
+        if (selectedMenuItemIndex == MENU_OPTION_SHOW_ALL_NOTES) {
+            showAllNotes(ioService, notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_ADD_NEW_NOTE) {
+            addNewNote(ioService, notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_UPDATE_NOTE) {
+            updateNote(ioService, notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_DELETE_NOTE) {
+            deleteNote(ioService, notes);
+        } else if (selectedMenuItemIndex == MENU_OPTION_EXIT){
+            executionFlag.set(false);
+        } else {
+            throw new MenuItemIndexOutOfBoundsException("Given menu item index is out of range");
+        }
+    }
+
+    private static int readSelectedOptionNumberFrom(ConsoleIOService ioService) {
+        return ioService.readInt();
+    }
+
+    private static void showAllNotes(ConsoleIOService ioService, List<Note> notes) {
+        var noteConverter = new NoteConverter();
+        ioService.outputString("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> noteConverter.convertNoteToString(k, notes.get(k - 1)))
+                .forEach(ioService::outputString);
+        ioService.outputString("");
+    }
+
+    private static void addNewNote(ConsoleIOService ioService, List<Note> notes) {
+        var noteText = ioService.readStringWithPrompt("Введите текст заметки...");
+        notes.add( Note.of(noteText));
+    }
+
+    private static void checkNoteNumber(int noteNumber, List<Note> notes) {
+        if (noteNumber <= 0 || noteNumber > notes.size()) {
+            throw new NoteIndexOutOfBoundsException("Given number of note is out of range");
+        }
+    }
+
+    private static void updateNote(ConsoleIOService ioService, List<Note> notes) {
+        var updatedNoteNumber = ioService.readIntWithPrompt("Введите номер изменяемой заметки...");
+        checkNoteNumber(updatedNoteNumber, notes);
+
+        var noteText = ioService.readStringWithPrompt("Введите текст заметки...");
+        notes.set(updatedNoteNumber - 1, Note.of(noteText));
+    }
+
+    private static void deleteNote(ConsoleIOService ioService, List<Note> notes) {
+        var deletedNoteNumber = ioService.readIntWithPrompt("Введите номер удаляемой заметки...");
+        checkNoteNumber(deletedNoteNumber, notes);
+
+        notes.remove(deletedNoteNumber - 1);
+    }
+
+}

2022-02/spring-00/architecture-origins/solution07_srp/src/main/java/ru/otus/exceptions/MenuItemIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class MenuItemIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public MenuItemIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution07_srp/src/main/java/ru/otus/exceptions/NoteIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class NoteIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public NoteIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution07_srp/src/main/java/ru/otus/model/Note.java

@@ -0,0 +1,26 @@
+package ru.otus.model;
+
+import java.time.LocalDateTime;
+
+public class Note {
+    private final LocalDateTime creationTime;
+    private final String text;
+
+    public Note(String text) {
+        this.creationTime = LocalDateTime.now();
+        this.text = text;
+    }
+
+    public static Note of(String text) {
+        return new Note(text);
+    }
+
+    public LocalDateTime getCreationTime() {
+        return creationTime;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+}

2022-02/spring-00/architecture-origins/solution07_srp/src/main/java/ru/otus/services/ConsoleIOService.java

@@ -0,0 +1,29 @@
+package ru.otus.services;
+
+import java.util.Scanner;
+
+public class ConsoleIOService {
+    private final Scanner userInput;
+
+    public ConsoleIOService() {
+        userInput = new Scanner(System.in);
+    }
+
+    public void outputString(String s){
+        System.out.println(s);
+    }
+
+    public int readInt(){
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    public int readIntWithPrompt(String prompt){
+        outputString(prompt);
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    public String readStringWithPrompt(String prompt){
+        outputString(prompt);
+        return userInput.nextLine();
+    }
+}

2022-02/spring-00/architecture-origins/solution07_srp/src/main/java/ru/otus/services/NoteConverter.java

@@ -0,0 +1,9 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+public class NoteConverter {
+    public String convertNoteToString(int noteNumber, Note note) {
+        return noteNumber + " | " + note.getCreationTime() + " | " + note.getText();
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution08_srp/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution08_srp</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/Main.java

@@ -0,0 +1,10 @@
+package ru.otus;
+
+import ru.otus.services.ApplicationRunner;
+
+// ApplicationRunner, MenuCommandsProcessor, NotesService
+public class Main {
+    public static void main(String[] args) {
+        new ApplicationRunner().run();
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/exceptions/MenuItemIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class MenuItemIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public MenuItemIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/exceptions/NoteIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class NoteIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public NoteIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/model/Note.java

@@ -0,0 +1,53 @@
+package ru.otus.model;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+public class Note {
+    private final String id;
+    private final LocalDateTime creationTime;
+    private final String text;
+
+    public Note(String text) {
+        this.id = UUID.randomUUID().toString();
+        this.creationTime = LocalDateTime.now();
+        this.text = text;
+    }
+
+    public Note(String id, String text) {
+        this.id = id;
+        this.creationTime = LocalDateTime.now();
+        this.text = text;
+    }
+
+    public Note(String id, LocalDateTime creationTime, String text) {
+        this.id = id;
+        this.creationTime = creationTime;
+        this.text = text;
+    }
+
+    public static Note of(String text) {
+        return new Note(text);
+    }
+
+    public static Note of(String id, String text) {
+        return new Note(id, text);
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public LocalDateTime getCreationTime() {
+        return creationTime;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+
+    public Note copy() {
+        return new Note(id, creationTime, text);
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/services/ApplicationRunner.java

@@ -0,0 +1,72 @@
+package ru.otus.services;
+
+import ru.otus.exceptions.MenuItemIndexOutOfBoundsException;
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class ApplicationRunner {
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    private final ConsoleIOService ioService;
+    private final AtomicBoolean executionFlag;
+    private final MenuCommandsProcessor commandsProcessor;
+
+
+    public ApplicationRunner() {
+        ioService = new ConsoleIOService();
+        executionFlag = new AtomicBoolean(true);
+        commandsProcessor = new MenuCommandsProcessor();
+
+    }
+
+    public void run() {
+        while (executionFlag.get()) {
+            outputMenu();
+            try {
+                var selectedMenuItem = readSelectedOptionNumber();
+                processMenuCommand(selectedMenuItem);
+
+            } catch (NumberFormatException e) {
+                ioService.outputString("Ошибка при вводе числа");
+            } catch (MenuItemIndexOutOfBoundsException e) {
+                ioService.outputString("Введен неверный номер опции");
+            } catch (NoteIndexOutOfBoundsException e) {
+                ioService.outputString("Введен несуществующий номер заметки");
+            }
+        }
+    }
+
+    private void outputMenu(){
+        ioService.outputString("Выберите одно из следующих действий...");
+        ioService.outputString("1. Вывести все заметки");
+        ioService.outputString("2. Добавить заметку");
+        ioService.outputString("3. Изменить заметку");
+        ioService.outputString("4. Удалить заметку");
+        ioService.outputString("5. Выйти");
+    }
+
+    private void processMenuCommand(int selectedMenuItemIndex) {
+        if (selectedMenuItemIndex == MENU_OPTION_SHOW_ALL_NOTES) {
+            commandsProcessor.showAllNotes(ioService);
+        } else if (selectedMenuItemIndex == MENU_OPTION_ADD_NEW_NOTE) {
+            commandsProcessor.addNewNote(ioService);
+        } else if (selectedMenuItemIndex == MENU_OPTION_UPDATE_NOTE) {
+            commandsProcessor.updateNote(ioService);
+        } else if (selectedMenuItemIndex == MENU_OPTION_DELETE_NOTE) {
+            commandsProcessor.deleteNote(ioService);
+        } else if (selectedMenuItemIndex == MENU_OPTION_EXIT){
+            executionFlag.set(false);
+        } else {
+            throw new MenuItemIndexOutOfBoundsException("Given menu item index is out of range");
+        }
+    }
+
+    private int readSelectedOptionNumber() {
+        return ioService.readInt();
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/services/ConsoleIOService.java

@@ -0,0 +1,29 @@
+package ru.otus.services;
+
+import java.util.Scanner;
+
+public class ConsoleIOService {
+    private final Scanner userInput;
+
+    public ConsoleIOService() {
+        userInput = new Scanner(System.in);
+    }
+
+    public void outputString(String s){
+        System.out.println(s);
+    }
+
+    public int readInt(){
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    public int readIntWithPrompt(String prompt){
+        outputString(prompt);
+        return Integer.parseInt(userInput.nextLine());
+    }
+
+    public String readStringWithPrompt(String prompt){
+        outputString(prompt);
+        return userInput.nextLine();
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/services/MenuCommandsProcessor.java

@@ -0,0 +1,58 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+
+import java.util.stream.IntStream;
+
+public class MenuCommandsProcessor {
+    private final NotesService notesService;
+
+    public MenuCommandsProcessor() {
+        notesService = new NotesService();
+    }
+
+    public void showAllNotes(ConsoleIOService ioService) {
+        var noteConverter = new NoteConverter();
+        var notes = notesService.getAll();
+        ioService.outputString("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> noteConverter.convertNoteToString(k, notes.get(k - 1)))
+                .forEach(ioService::outputString);
+        ioService.outputString("");
+    }
+
+    public void addNewNote(ConsoleIOService ioService) {
+        var noteText = ioService.readStringWithPrompt("Введите текст заметки...");
+        notesService.save(Note.of(noteText));
+    }
+
+    public void updateNote(ConsoleIOService ioService) {
+        var notes = notesService.getAll();
+
+        var updatedNoteNumber = ioService.readIntWithPrompt("Введите номер изменяемой заметки...");
+        checkNoteNumber(updatedNoteNumber, notes.size());
+
+        var noteText = ioService.readStringWithPrompt("Введите текст заметки...");
+
+        var updatedNote = notes.get(updatedNoteNumber - 1);
+        notesService.save(Note.of(updatedNote.getId(), noteText));
+    }
+
+    public void deleteNote(ConsoleIOService ioService) {
+        var notes = notesService.getAll();
+
+        var deletedNoteNumber = ioService.readIntWithPrompt("Введите номер удаляемой заметки...");
+        checkNoteNumber(deletedNoteNumber, notes.size());
+
+        var updatedNote = notes.get(deletedNoteNumber - 1);
+        notesService.remove(updatedNote.getId());
+    }
+
+    private static void checkNoteNumber(int noteNumber, int notesCount) {
+        if (noteNumber <= 0 || noteNumber > notesCount) {
+            throw new NoteIndexOutOfBoundsException("Given number of note is out of range");
+        }
+    }
+    
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/services/NoteConverter.java

@@ -0,0 +1,9 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+public class NoteConverter {
+    public String convertNoteToString(int noteNumber, Note note) {
+        return noteNumber + " | " + note.getCreationTime() + " | " + note.getText();
+    }
+}

2022-02/spring-00/architecture-origins/solution08_srp/src/main/java/ru/otus/services/NotesService.java

@@ -0,0 +1,26 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+public class NotesService {
+    private final Map<String, Note> notes;
+
+    public NotesService() {
+        notes = new HashMap<>();
+    }
+
+    public List<Note> getAll() {
+        return notes.values().stream().map(Note::copy).collect(Collectors.toList());
+    }
+
+    public void save(Note note) {
+        notes.put(note.getId(), note);
+    }
+
+    public void remove(String id) {
+        notes.remove(id);
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution09_dip/pom.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution09_dip</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/Main.java

@@ -0,0 +1,20 @@
+package ru.otus;
+
+import ru.otus.config.AppSettings;
+import ru.otus.services.*;
+
+// +AppSettings
+public class Main {
+    public static void main(String[] args) {
+        var appSettings = new AppSettings(true, "dd.mm.YYYY HH:mm:ss");
+        var ioService = new IOServiceStreams(System.out, System.in);
+        var applicationStopService = new ApplicationStopServiceImpl(ioService, appSettings);
+        var notesService = new NotesServiceImpl();
+        var noteConverter = new NoteConverterImpl(appSettings);
+        var menuCommandsProcessor = new MenuCommandsProcessorImpl(ioService, notesService,
+                noteConverter, applicationStopService);
+
+        new ApplicationRunner(ioService, applicationStopService, menuCommandsProcessor)
+                .run();
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/config/AppSettings.java

@@ -0,0 +1,19 @@
+package ru.otus.config;
+
+public class AppSettings {
+    private final boolean confirmExit;
+    private final String dateTimeFormat;
+
+    public AppSettings(boolean confirmExit, String dateTimeFormat) {
+        this.confirmExit = confirmExit;
+        this.dateTimeFormat = dateTimeFormat;
+    }
+
+    public boolean isConfirmExit() {
+        return confirmExit;
+    }
+
+    public String getDateTimeFormat() {
+        return dateTimeFormat;
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/exceptions/MenuItemIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class MenuItemIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public MenuItemIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/exceptions/NoteIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class NoteIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public NoteIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/model/Note.java

@@ -0,0 +1,53 @@
+package ru.otus.model;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+public class Note {
+    private final String id;
+    private final LocalDateTime creationTime;
+    private final String text;
+
+    public Note(String text) {
+        this.id = UUID.randomUUID().toString();
+        this.creationTime = LocalDateTime.now();
+        this.text = text;
+    }
+
+    public Note(String id, String text) {
+        this.id = id;
+        this.creationTime = LocalDateTime.now();
+        this.text = text;
+    }
+
+    public Note(String id, LocalDateTime creationTime, String text) {
+        this.id = id;
+        this.creationTime = creationTime;
+        this.text = text;
+    }
+
+    public static Note of(String text) {
+        return new Note(text);
+    }
+
+    public static Note of(String id, String text) {
+        return new Note(id, text);
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public LocalDateTime getCreationTime() {
+        return creationTime;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+
+    public Note copy() {
+        return new Note(id, creationTime, text);
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/ApplicationRunner.java

@@ -0,0 +1,71 @@
+package ru.otus.services;
+
+import ru.otus.exceptions.MenuItemIndexOutOfBoundsException;
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+
+public class ApplicationRunner {
+    private static final int MENU_OPTION_SHOW_ALL_NOTES = 1;
+    private static final int MENU_OPTION_ADD_NEW_NOTE = 2;
+    private static final int MENU_OPTION_UPDATE_NOTE = 3;
+    private static final int MENU_OPTION_DELETE_NOTE = 4;
+    private static final int MENU_OPTION_EXIT = 5;
+
+    private final IOService ioService;
+    private final ApplicationStopService applicationStopService;
+    private final MenuCommandsProcessor commandsProcessor;
+
+
+    public ApplicationRunner(IOService ioService,
+                             ApplicationStopService applicationStopService,
+                             MenuCommandsProcessor commandsProcessor) {
+        this.ioService = ioService;
+        this.applicationStopService = applicationStopService;
+        this.commandsProcessor = commandsProcessor;
+    }
+
+    public void run() {
+        while (applicationStopService.isApplicationRunning()) {
+            outputMenu();
+            try {
+                var selectedMenuItem = readSelectedOptionNumber();
+                processMenuCommand(selectedMenuItem);
+
+            } catch (NumberFormatException e) {
+                ioService.outputString("Ошибка при вводе числа");
+            } catch (MenuItemIndexOutOfBoundsException e) {
+                ioService.outputString("Введен неверный номер опции");
+            } catch (NoteIndexOutOfBoundsException e) {
+                ioService.outputString("Введен несуществующий номер заметки");
+            }
+        }
+    }
+
+    private void outputMenu(){
+        ioService.outputString("Выберите одно из следующих действий...");
+        ioService.outputString("1. Вывести все заметки");
+        ioService.outputString("2. Добавить заметку");
+        ioService.outputString("3. Изменить заметку");
+        ioService.outputString("4. Удалить заметку");
+        ioService.outputString("5. Выйти");
+    }
+
+    private void processMenuCommand(int selectedMenuItemIndex) {
+        if (selectedMenuItemIndex == MENU_OPTION_SHOW_ALL_NOTES) {
+            commandsProcessor.showAllNotes();
+        } else if (selectedMenuItemIndex == MENU_OPTION_ADD_NEW_NOTE) {
+            commandsProcessor.addNewNote();
+        } else if (selectedMenuItemIndex == MENU_OPTION_UPDATE_NOTE) {
+            commandsProcessor.updateNote();
+        } else if (selectedMenuItemIndex == MENU_OPTION_DELETE_NOTE) {
+            commandsProcessor.deleteNote();
+        } else if (selectedMenuItemIndex == MENU_OPTION_EXIT){
+            commandsProcessor.stopApplication();
+        } else {
+            throw new MenuItemIndexOutOfBoundsException("Given menu item index is out of range");
+        }
+    }
+
+    private int readSelectedOptionNumber() {
+        return ioService.readInt();
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/ApplicationStopService.java

@@ -0,0 +1,6 @@
+package ru.otus.services;
+
+public interface ApplicationStopService {
+    boolean isApplicationRunning();
+    void stopApplication();
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/ApplicationStopServiceImpl.java

@@ -0,0 +1,34 @@
+package ru.otus.services;
+
+import ru.otus.config.AppSettings;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class ApplicationStopServiceImpl implements ApplicationStopService {
+
+    private final IOService ioService;
+    private final AppSettings appSettings;
+    private final AtomicBoolean executionFlag;
+
+    public ApplicationStopServiceImpl(IOService ioService, AppSettings appSettings) {
+        this.ioService = ioService;
+        this.appSettings = appSettings;
+        this.executionFlag = new AtomicBoolean(true);
+    }
+
+    @Override
+    public boolean isApplicationRunning() {
+        return executionFlag.get();
+    }
+
+    @Override
+    public void stopApplication() {
+        if (appSettings.isConfirmExit()) {
+            var exitConfirmation = ioService.readStringWithPrompt("Действительно выйти? (да/нет)");
+            if (exitConfirmation.equalsIgnoreCase("нет")) {
+                return;
+            }
+        }
+        executionFlag.set(false);
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/IOService.java

@@ -0,0 +1,11 @@
+package ru.otus.services;
+
+public interface IOService {
+    void outputString(String s);
+
+    int readInt();
+
+    int readIntWithPrompt(String prompt);
+
+    String readStringWithPrompt(String prompt);
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/IOServiceStreams.java

@@ -0,0 +1,37 @@
+package ru.otus.services;
+
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.util.Scanner;
+
+public class IOServiceStreams implements IOService {
+    private final PrintStream output;
+    private final Scanner input;
+
+    public IOServiceStreams(PrintStream outputStream, InputStream inputStream) {
+        output = outputStream;
+        input = new Scanner(inputStream);
+    }
+
+    @Override
+    public void outputString(String s){
+        output.println(s);
+    }
+
+    @Override
+    public int readInt(){
+        return Integer.parseInt(input.nextLine());
+    }
+
+    @Override
+    public int readIntWithPrompt(String prompt){
+        outputString(prompt);
+        return Integer.parseInt(input.nextLine());
+    }
+
+    @Override
+    public String readStringWithPrompt(String prompt){
+        outputString(prompt);
+        return input.nextLine();
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/MenuCommandsProcessor.java

@@ -0,0 +1,13 @@
+package ru.otus.services;
+
+public interface MenuCommandsProcessor {
+    void showAllNotes();
+
+    void addNewNote();
+
+    void updateNote();
+
+    void deleteNote();
+
+    void stopApplication();
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/MenuCommandsProcessorImpl.java

@@ -0,0 +1,74 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+
+import java.util.stream.IntStream;
+
+public class MenuCommandsProcessorImpl implements MenuCommandsProcessor {
+    private final IOService ioService;
+    private final NotesService notesService;
+    private final NoteConverter noteConverter;
+    private final ApplicationStopService applicationStopService;
+
+    public MenuCommandsProcessorImpl(IOService ioService, NotesService notesService,
+                                     NoteConverter noteConverter,
+                                     ApplicationStopService applicationStopService) {
+        this.ioService = ioService;
+        this.notesService = notesService;
+        this.noteConverter = noteConverter;
+        this.applicationStopService = applicationStopService;
+    }
+
+    @Override
+    public void showAllNotes() {
+        var notes = notesService.getAll();
+        ioService.outputString("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> noteConverter.convertNoteToString(k, notes.get(k - 1)))
+                .forEach(ioService::outputString);
+        ioService.outputString("");
+    }
+
+    @Override
+    public void addNewNote() {
+        var noteText = ioService.readStringWithPrompt("Введите текст заметки...");
+        notesService.save(Note.of(noteText));
+    }
+
+    @Override
+    public void updateNote() {
+        var notes = notesService.getAll();
+
+        var updatedNoteNumber = ioService.readIntWithPrompt("Введите номер изменяемой заметки...");
+        checkNoteNumber(updatedNoteNumber, notes.size());
+
+        var noteText = ioService.readStringWithPrompt("Введите текст заметки...");
+
+        var updatedNote = notes.get(updatedNoteNumber - 1);
+        notesService.save(Note.of(updatedNote.getId(), noteText));
+    }
+
+    @Override
+    public void deleteNote() {
+        var notes = notesService.getAll();
+
+        var deletedNoteNumber = ioService.readIntWithPrompt("Введите номер удаляемой заметки...");
+        checkNoteNumber(deletedNoteNumber, notes.size());
+
+        var updatedNote = notes.get(deletedNoteNumber - 1);
+        notesService.remove(updatedNote.getId());
+    }
+
+    @Override
+    public void stopApplication() {
+        applicationStopService.stopApplication();
+    }
+
+    private static void checkNoteNumber(int noteNumber, int notesCount) {
+        if (noteNumber <= 0 || noteNumber > notesCount) {
+            throw new NoteIndexOutOfBoundsException("Given number of note is out of range");
+        }
+    }
+    
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/NoteConverter.java

@@ -0,0 +1,7 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+public interface NoteConverter {
+    String convertNoteToString(int noteNumber, Note note);
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/NoteConverterImpl.java

@@ -0,0 +1,21 @@
+package ru.otus.services;
+
+import ru.otus.config.AppSettings;
+import ru.otus.model.Note;
+
+
+import java.time.format.DateTimeFormatter;
+
+public class NoteConverterImpl implements NoteConverter {
+    private final AppSettings appSettings;
+
+    public NoteConverterImpl(AppSettings appSettings) {
+        this.appSettings = appSettings;
+    }
+
+    @Override
+    public String convertNoteToString(int noteNumber, Note note) {
+        var dateTimeFormatter = DateTimeFormatter.ofPattern(appSettings.getDateTimeFormat());
+        return noteNumber + " | " + dateTimeFormatter.format(note.getCreationTime()) + " | " + note.getText();
+    }
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/NotesService.java

@@ -0,0 +1,13 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+import java.util.List;
+
+public interface NotesService {
+    List<Note> getAll();
+
+    void save(Note note);
+
+    void remove(String id);
+}

2022-02/spring-00/architecture-origins/solution09_dip/src/main/java/ru/otus/services/NotesServiceImpl.java

@@ -0,0 +1,31 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class NotesServiceImpl implements NotesService {
+    private final Map<String, Note> notes;
+
+    public NotesServiceImpl() {
+        notes = new HashMap<>();
+    }
+
+    @Override
+    public List<Note> getAll() {
+        return notes.values().stream().map(Note::copy).collect(Collectors.toList());
+    }
+
+    @Override
+    public void save(Note note) {
+        notes.put(note.getId(), note);
+    }
+
+    @Override
+    public void remove(String id) {
+        notes.remove(id);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/

2022-02/spring-00/architecture-origins/solution10_ocp_isp/pom.xml

@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>solution10_ocp_isp</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <junit.jupiter.version>5.8.2</junit.jupiter.version>
+        <mockito.version>4.1.0</mockito.version>
+        <assertj.version>3.21.0</assertj.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- Mockito -->
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>${mockito.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+            <version>${mockito.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- AssetrtJ -->
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/Main.java

@@ -0,0 +1,44 @@
+package ru.otus;
+
+import ru.otus.config.AppSettings;
+import ru.otus.services.*;
+import ru.otus.services.processors.*;
+import ru.otus.services.menu.MenuOption;
+import ru.otus.services.menu.MenuOptionsRegistryImpl;
+
+
+import java.util.List;
+
+// OCP + ISP (AppSettings + IOService) + тесты
+public class Main {
+    public static void main(String[] args) {
+        var appSettings = new AppSettings(true, "dd.mm.YYYY HH:mm:ss");
+        var ioService = new IOServiceStreams(System.out, System.in);
+        var applicationStopService = new ApplicationStopServiceImpl(ioService, appSettings);
+        var notesService = new NotesServiceImpl();
+        var noteConverter = new NoteConverterImpl(appSettings);
+
+        var menuOptions = List.of(
+                new MenuOption(1, "Вывести все заметки"),
+                new MenuOption(2, "Добавить заметку"),
+                new MenuOption(3, "Изменить заметку"),
+                new MenuOption(4, "Удалить заметку"),
+                new MenuOption(5, "Выйти")
+
+        );
+        var menuOptionsRegistry = new MenuOptionsRegistryImpl(menuOptions);
+
+        var processors = List.of(
+                new ShowAllNotesSingleCommandProcessor(ioService, notesService, noteConverter, menuOptions.get(0)),
+                new AddNewNoteSingleCommandProcessor(ioService, notesService, menuOptions.get(1)),
+                new UpdateNoteSingleCommandProcessor(ioService, notesService, menuOptions.get(2)),
+                new DeleteNoteSingleCommandProcessor(ioService, notesService, menuOptions.get(3)),
+                new StopApplicationSingleCommandProcessor(applicationStopService, menuOptions.get(4))
+        );
+
+        var menuCommandsProcessor = new MenuCommandsProcessorImpl(processors);
+
+        new ApplicationRunner(ioService, applicationStopService, menuOptionsRegistry, menuCommandsProcessor)
+                .run();
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/config/AppSettings.java

@@ -0,0 +1,21 @@
+package ru.otus.config;
+
+public class AppSettings implements DateTimeFormatProvider, ApplicationStopServiceSettingsProvider{
+    private final boolean confirmExit;
+    private final String dateTimeFormat;
+
+    public AppSettings(boolean confirmExit, String dateTimeFormat) {
+        this.confirmExit = confirmExit;
+        this.dateTimeFormat = dateTimeFormat;
+    }
+
+    @Override
+    public boolean isConfirmExit() {
+        return confirmExit;
+    }
+
+    @Override
+    public String getDateTimeFormat() {
+        return dateTimeFormat;
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/config/ApplicationStopServiceSettingsProvider.java

@@ -0,0 +1,5 @@
+package ru.otus.config;
+
+public interface ApplicationStopServiceSettingsProvider {
+    boolean isConfirmExit();
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/config/DateTimeFormatProvider.java

@@ -0,0 +1,5 @@
+package ru.otus.config;
+
+public interface DateTimeFormatProvider {
+    String getDateTimeFormat();
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/exceptions/MenuCommandProcessorNotFound.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class MenuCommandProcessorNotFound extends RuntimeException {
+    public MenuCommandProcessorNotFound(String message) {
+        super(message);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/exceptions/MenuItemIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class MenuItemIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public MenuItemIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/exceptions/NoteIndexOutOfBoundsException.java

@@ -0,0 +1,7 @@
+package ru.otus.exceptions;
+
+public class NoteIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    public NoteIndexOutOfBoundsException(String s) {
+        super(s);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/model/Note.java

@@ -0,0 +1,53 @@
+package ru.otus.model;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+public class Note {
+    private final String id;
+    private final LocalDateTime creationTime;
+    private final String text;
+
+    public Note(String text) {
+        this.id = UUID.randomUUID().toString();
+        this.creationTime = LocalDateTime.now();
+        this.text = text;
+    }
+
+    public Note(String id, String text) {
+        this.id = id;
+        this.creationTime = LocalDateTime.now();
+        this.text = text;
+    }
+
+    public Note(String id, LocalDateTime creationTime, String text) {
+        this.id = id;
+        this.creationTime = creationTime;
+        this.text = text;
+    }
+
+    public static Note of(String text) {
+        return new Note(text);
+    }
+
+    public static Note of(String id, String text) {
+        return new Note(id, text);
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public LocalDateTime getCreationTime() {
+        return creationTime;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+
+    public Note copy() {
+        return new Note(id, creationTime, text);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/ApplicationRunner.java

@@ -0,0 +1,66 @@
+package ru.otus.services;
+
+import ru.otus.exceptions.MenuCommandProcessorNotFound;
+import ru.otus.exceptions.MenuItemIndexOutOfBoundsException;
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+import ru.otus.services.menu.MenuOption;
+import ru.otus.services.menu.MenuOptionsRegistry;
+import ru.otus.services.processors.MenuCommandsProcessor;
+
+import java.util.Comparator;
+
+public class ApplicationRunner {
+    private final IOService ioService;
+    private final ApplicationStopService applicationStopService;
+    private final MenuOptionsRegistry menuOptionsRegistry;
+    private final MenuCommandsProcessor commandsProcessor;
+
+
+    public ApplicationRunner(IOService ioService,
+                             ApplicationStopService applicationStopService,
+                             MenuOptionsRegistry menuOptionsRegistry,
+                             MenuCommandsProcessor commandsProcessor) {
+        this.ioService = ioService;
+        this.applicationStopService = applicationStopService;
+        this.menuOptionsRegistry = menuOptionsRegistry;
+        this.commandsProcessor = commandsProcessor;
+    }
+
+    public void run() {
+        while (applicationStopService.isApplicationRunning()) {
+            outputMenu();
+            try {
+                var selectedMenuItem = readSelectedOptionNumber();
+                processMenuCommand(selectedMenuItem);
+
+            } catch (NumberFormatException e) {
+                ioService.outputString("Ошибка при вводе числа");
+            } catch (MenuItemIndexOutOfBoundsException e) {
+                ioService.outputString("Введен неверный номер опции");
+            } catch (NoteIndexOutOfBoundsException e) {
+                ioService.outputString("Введен несуществующий номер заметки");
+            } catch (MenuCommandProcessorNotFound e) {
+                ioService.outputString("Не найден обработчик для выбранного пункта меню");
+            }
+        }
+    }
+
+    private void outputMenu() {
+        ioService.outputString("Выберите одно из следующих действий...");
+        menuOptionsRegistry.getAvailableMenuOptions().stream()
+                .sorted(Comparator.comparingInt(MenuOption::getId))
+                .map(m -> m.getId() + ". " + m.getDescription())
+                .forEach(ioService::outputString);
+    }
+
+    private void processMenuCommand(int selectedMenuItemId) {
+        var selectedMenuOption = menuOptionsRegistry.getMenuOptionById(selectedMenuItemId)
+                .orElseThrow(() -> new MenuItemIndexOutOfBoundsException("Given menu item index is out of range"));
+
+        commandsProcessor.processMenuCommand(selectedMenuOption);
+    }
+
+    private int readSelectedOptionNumber() {
+        return ioService.readInt();
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/ApplicationStopService.java

@@ -0,0 +1,6 @@
+package ru.otus.services;
+
+public interface ApplicationStopService {
+    boolean isApplicationRunning();
+    void stopApplication();
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/ApplicationStopServiceImpl.java

@@ -0,0 +1,36 @@
+package ru.otus.services;
+
+import ru.otus.config.ApplicationStopServiceSettingsProvider;
+import ru.otus.services.processors.InputService;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class ApplicationStopServiceImpl implements ApplicationStopService {
+
+    private final InputService inputService;
+    private final ApplicationStopServiceSettingsProvider settingsProvider;
+    private final AtomicBoolean executionFlag;
+
+    public ApplicationStopServiceImpl(InputService inputService,
+                                      ApplicationStopServiceSettingsProvider settingsProvider) {
+        this.inputService = inputService;
+        this.settingsProvider = settingsProvider;
+        this.executionFlag = new AtomicBoolean(true);
+    }
+
+    @Override
+    public boolean isApplicationRunning() {
+        return executionFlag.get();
+    }
+
+    @Override
+    public void stopApplication() {
+        if (settingsProvider.isConfirmExit()) {
+            var exitConfirmation = inputService.readStringWithPrompt("Действительно выйти? (да/нет)");
+            if (exitConfirmation.equalsIgnoreCase("нет")) {
+                return;
+            }
+        }
+        executionFlag.set(false);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/IOService.java

@@ -0,0 +1,9 @@
+package ru.otus.services;
+
+import ru.otus.services.processors.InputService;
+import ru.otus.services.processors.OutputService;
+
+public interface IOService extends InputService, OutputService {
+
+
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/IOServiceStreams.java

@@ -0,0 +1,37 @@
+package ru.otus.services;
+
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.util.Scanner;
+
+public class IOServiceStreams implements IOService {
+    private final PrintStream output;
+    private final Scanner input;
+
+    public IOServiceStreams(PrintStream outputStream, InputStream inputStream) {
+        output = outputStream;
+        input = new Scanner(inputStream);
+    }
+
+    @Override
+    public void outputString(String s){
+        output.println(s);
+    }
+
+    @Override
+    public int readInt(){
+        return Integer.parseInt(input.nextLine());
+    }
+
+    @Override
+    public int readIntWithPrompt(String prompt){
+        outputString(prompt);
+        return Integer.parseInt(input.nextLine());
+    }
+
+    @Override
+    public String readStringWithPrompt(String prompt){
+        outputString(prompt);
+        return input.nextLine();
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/NoteConverter.java

@@ -0,0 +1,7 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+public interface NoteConverter {
+    String convertNoteToString(int noteNumber, Note note);
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/NoteConverterImpl.java

@@ -0,0 +1,20 @@
+package ru.otus.services;
+
+import ru.otus.config.DateTimeFormatProvider;
+import ru.otus.model.Note;
+
+import java.time.format.DateTimeFormatter;
+
+public class NoteConverterImpl implements NoteConverter {
+    private final DateTimeFormatProvider dateTimeFormatProvider;
+
+    public NoteConverterImpl(DateTimeFormatProvider dateTimeFormatProvider) {
+        this.dateTimeFormatProvider = dateTimeFormatProvider;
+    }
+
+    @Override
+    public String convertNoteToString(int noteNumber, Note note) {
+        var dateTimeFormatter = DateTimeFormatter.ofPattern(dateTimeFormatProvider.getDateTimeFormat());
+        return noteNumber + " | " + dateTimeFormatter.format(note.getCreationTime()) + " | " + note.getText();
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/NotesService.java

@@ -0,0 +1,13 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+import java.util.List;
+
+public interface NotesService {
+    List<Note> getAll();
+
+    void save(Note note);
+
+    void remove(String id);
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/NotesServiceImpl.java

@@ -0,0 +1,31 @@
+package ru.otus.services;
+
+import ru.otus.model.Note;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class NotesServiceImpl implements NotesService {
+    private final Map<String, Note> notes;
+
+    public NotesServiceImpl() {
+        notes = new HashMap<>();
+    }
+
+    @Override
+    public List<Note> getAll() {
+        return notes.values().stream().map(Note::copy).collect(Collectors.toList());
+    }
+
+    @Override
+    public void save(Note note) {
+        notes.put(note.getId(), note);
+    }
+
+    @Override
+    public void remove(String id) {
+        notes.remove(id);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/menu/MenuOption.java

@@ -0,0 +1,34 @@
+package ru.otus.services.menu;
+
+public class MenuOption {
+    private final int id;
+    private final String description;
+
+    public MenuOption(int id, String description) {
+        this.id = id;
+        this.description = description;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        MenuOption that = (MenuOption) o;
+
+        return id == that.id;
+    }
+
+    @Override
+    public int hashCode() {
+        return id;
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/menu/MenuOptionsRegistry.java

@@ -0,0 +1,9 @@
+package ru.otus.services.menu;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface MenuOptionsRegistry {
+    List<MenuOption> getAvailableMenuOptions();
+    Optional<MenuOption> getMenuOptionById(int id);
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/menu/MenuOptionsRegistryImpl.java

@@ -0,0 +1,26 @@
+package ru.otus.services.menu;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+public class MenuOptionsRegistryImpl implements MenuOptionsRegistry {
+    private final Map<Integer, MenuOption> options;
+
+    public MenuOptionsRegistryImpl(List<MenuOption> options) {
+        this.options = options.stream()
+                .collect(Collectors.toUnmodifiableMap(MenuOption::getId, Function.identity()));
+    }
+
+    @Override
+    public List<MenuOption> getAvailableMenuOptions() {
+        return options.values().stream().collect(Collectors.toUnmodifiableList());
+    }
+
+    @Override
+    public Optional<MenuOption> getMenuOptionById(int id) {
+        return Optional.ofNullable(options.get(id));
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/AddNewNoteSingleCommandProcessor.java

@@ -0,0 +1,30 @@
+package ru.otus.services.processors;
+
+import ru.otus.model.Note;
+import ru.otus.services.NotesService;
+import ru.otus.services.menu.MenuOption;
+
+public class AddNewNoteSingleCommandProcessor implements MenuSingleCommandProcessor {
+    private final MenuOption processedCommandOption;
+    private final InputService inputService;
+    private final NotesService notesService;
+
+    public AddNewNoteSingleCommandProcessor(InputService inputService, NotesService notesService,
+                                            MenuOption processedCommandOption) {
+        this.inputService = inputService;
+        this.notesService = notesService;
+        this.processedCommandOption = processedCommandOption;
+    }
+
+    @Override
+    public void processCommand() {
+        var noteText = inputService.readStringWithPrompt("Введите текст заметки...");
+        notesService.save(Note.of(noteText));
+
+    }
+
+    @Override
+    public MenuOption getProcessedCommandOption() {
+        return processedCommandOption;
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/DeleteNoteSingleCommandProcessor.java

@@ -0,0 +1,37 @@
+package ru.otus.services.processors;
+
+import ru.otus.services.NotesService;
+import ru.otus.services.menu.MenuOption;
+
+
+import static ru.otus.services.processors.utils.NotesListUtil.checkNoteNumber;
+
+public class DeleteNoteSingleCommandProcessor implements MenuSingleCommandProcessor {
+    private final MenuOption processedCommandOption;
+    private final InputService inputService;
+    private final NotesService notesService;
+
+    public DeleteNoteSingleCommandProcessor(InputService inputService, NotesService notesService,
+                                            MenuOption processedCommandOption) {
+        this.inputService = inputService;
+        this.notesService = notesService;
+        this.processedCommandOption = processedCommandOption;
+    }
+
+    @Override
+    public void processCommand() {
+        var notes = notesService.getAll();
+
+        var deletedNoteNumber = inputService.readIntWithPrompt("Введите номер удаляемой заметки...");
+        checkNoteNumber(deletedNoteNumber, notes.size());
+
+        var updatedNote = notes.get(deletedNoteNumber - 1);
+        notesService.remove(updatedNote.getId());
+    }
+
+    @Override
+    public MenuOption getProcessedCommandOption() {
+        return processedCommandOption;
+    }
+
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/InputService.java

@@ -0,0 +1,9 @@
+package ru.otus.services.processors;
+
+public interface InputService {
+    int readInt();
+
+    int readIntWithPrompt(String prompt);
+
+    String readStringWithPrompt(String prompt);
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/MenuCommandsProcessor.java

@@ -0,0 +1,7 @@
+package ru.otus.services.processors;
+
+import ru.otus.services.menu.MenuOption;
+
+public interface MenuCommandsProcessor {
+    void processMenuCommand(MenuOption selectedMenuOption);
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/MenuCommandsProcessorImpl.java

@@ -0,0 +1,27 @@
+package ru.otus.services.processors;
+
+import ru.otus.exceptions.MenuCommandProcessorNotFound;
+import ru.otus.services.menu.MenuOption;
+
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+public class MenuCommandsProcessorImpl implements MenuCommandsProcessor {
+    private final Map<MenuOption, MenuSingleCommandProcessor> processors;
+
+    public MenuCommandsProcessorImpl(List<MenuSingleCommandProcessor> processors) {
+        this.processors = processors.stream()
+                .collect(Collectors.toMap(MenuSingleCommandProcessor::getProcessedCommandOption, Function.identity()));
+    }
+
+    @Override
+    public void processMenuCommand(MenuOption selectedMenuOption) {
+        var commandProcessor = processors.get(selectedMenuOption);
+        if (commandProcessor == null) {
+            throw new MenuCommandProcessorNotFound("Menu command processor for given option does not registered");
+        }
+        commandProcessor.processCommand();
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/MenuSingleCommandProcessor.java

@@ -0,0 +1,8 @@
+package ru.otus.services.processors;
+
+import ru.otus.services.menu.MenuOption;
+
+public interface MenuSingleCommandProcessor {
+    void processCommand();
+    MenuOption getProcessedCommandOption();
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/OutputService.java

@@ -0,0 +1,5 @@
+package ru.otus.services.processors;
+
+public interface OutputService {
+    void outputString(String s);
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/ShowAllNotesSingleCommandProcessor.java

@@ -0,0 +1,38 @@
+package ru.otus.services.processors;
+
+import ru.otus.services.NoteConverter;
+import ru.otus.services.NotesService;
+import ru.otus.services.menu.MenuOption;
+
+import java.util.stream.IntStream;
+
+public class ShowAllNotesSingleCommandProcessor implements MenuSingleCommandProcessor {
+    private final MenuOption processedCommandOption;
+
+    private final OutputService outputService;
+    private final NotesService notesService;
+    private final NoteConverter noteConverter;
+
+    public ShowAllNotesSingleCommandProcessor(OutputService outputService, NotesService notesService,
+                                              NoteConverter noteConverter, MenuOption processedCommandOption) {
+        this.outputService = outputService;
+        this.notesService = notesService;
+        this.noteConverter = noteConverter;
+        this.processedCommandOption = processedCommandOption;
+    }
+
+    @Override
+    public void processCommand() {
+        var notes = notesService.getAll();
+        outputService.outputString("Заметки:");
+        IntStream.range(1, notes.size() + 1)
+                .mapToObj(k -> noteConverter.convertNoteToString(k, notes.get(k - 1)))
+                .forEach(outputService::outputString);
+        outputService.outputString("");
+    }
+
+    @Override
+    public MenuOption getProcessedCommandOption() {
+        return processedCommandOption;
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/StopApplicationSingleCommandProcessor.java

@@ -0,0 +1,25 @@
+package ru.otus.services.processors;
+
+import ru.otus.services.ApplicationStopService;
+import ru.otus.services.menu.MenuOption;
+
+public class StopApplicationSingleCommandProcessor implements MenuSingleCommandProcessor {
+    private final MenuOption processedCommandOption;
+    private final ApplicationStopService applicationStopService;
+
+    public StopApplicationSingleCommandProcessor(ApplicationStopService applicationStopService,
+                                                 MenuOption processedCommandOption) {
+        this.applicationStopService = applicationStopService;
+        this.processedCommandOption = processedCommandOption;
+    }
+
+    @Override
+    public void processCommand() {
+        applicationStopService.stopApplication();
+    }
+
+    @Override
+    public MenuOption getProcessedCommandOption() {
+        return processedCommandOption;
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/UpdateNoteSingleCommandProcessor.java

@@ -0,0 +1,41 @@
+package ru.otus.services.processors;
+
+import ru.otus.model.Note;
+import ru.otus.services.menu.MenuOption;
+import ru.otus.services.NotesService;
+
+import java.util.List;
+
+import static ru.otus.services.processors.utils.NotesListUtil.checkNoteNumber;
+
+public class UpdateNoteSingleCommandProcessor implements MenuSingleCommandProcessor {
+    private final MenuOption processedCommandOption;
+    private final InputService inputService;
+    private final NotesService notesService;
+
+    public UpdateNoteSingleCommandProcessor(InputService inputService, NotesService notesService,
+                                            MenuOption processedCommandOption) {
+        this.inputService = inputService;
+        this.notesService = notesService;
+        this.processedCommandOption = processedCommandOption;
+    }
+
+    @Override
+    public void processCommand() {
+        var notes = notesService.getAll();
+
+        var updatedNoteNumber = inputService.readIntWithPrompt("Введите номер изменяемой заметки...");
+        checkNoteNumber(updatedNoteNumber, notes.size());
+
+        var noteText = inputService.readStringWithPrompt("Введите текст заметки...");
+
+        var updatedNote = notes.get(updatedNoteNumber - 1);
+        notesService.save(Note.of(updatedNote.getId(), noteText));    }
+
+    @Override
+    public MenuOption getProcessedCommandOption() {
+        return processedCommandOption;
+    }
+
+
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/main/java/ru/otus/services/processors/utils/NotesListUtil.java

@@ -0,0 +1,11 @@
+package ru.otus.services.processors.utils;
+
+import ru.otus.exceptions.NoteIndexOutOfBoundsException;
+
+public class NotesListUtil {
+    public static void checkNoteNumber(int noteNumber, int notesCount) {
+        if (noteNumber <= 0 || noteNumber > notesCount) {
+            throw new NoteIndexOutOfBoundsException("Given number of note is out of range");
+        }
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/test/java/ru/otus/services/ApplicationStopServiceImplTest.java

@@ -0,0 +1,33 @@
+package ru.otus.services;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+import ru.otus.config.ApplicationStopServiceSettingsProvider;
+import ru.otus.services.processors.InputService;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.*;
+
+@DisplayName("Сервис остановки приложения ")
+class ApplicationStopServiceImplTest {
+
+    @DisplayName("должен возвращать корректный статус работы приложения")
+    @ParameterizedTest(name = "остановить приложение: {0}, ожидаемый результат: {1}")
+    @CsvSource({"false, true", "true, false"})
+    void shouldReturnCorrectApplicationExecutionStatus(boolean shouldStopApplication, boolean expectedStatus) {
+        var inputService = mock(InputService.class);
+        var settingsProvider = mock(ApplicationStopServiceSettingsProvider.class);
+        given(settingsProvider.isConfirmExit()).willReturn(false);
+        var applicationStopService = new ApplicationStopServiceImpl(inputService, settingsProvider);
+
+        if (shouldStopApplication) {
+            applicationStopService.stopApplication();
+            verify(settingsProvider, times(1)).isConfirmExit();
+        }
+        var actualStatus = applicationStopService.isApplicationRunning();
+        assertThat(actualStatus).isEqualTo(expectedStatus);
+        verify(inputService, never()).readStringWithPrompt(any());
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/test/java/ru/otus/services/menu/MenuOptionsRegistryImplTest.java

@@ -0,0 +1,43 @@
+package ru.otus.services.menu;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+
+@DisplayName("Реестр опций меню ")
+class MenuOptionsRegistryImplTest {
+
+    private List<MenuOption> options;
+    private MenuOptionsRegistryImpl menuOptionsRegistry;
+
+    @BeforeEach
+    void setUp() {
+        options = List.of(new MenuOption(1, "opt1"), new MenuOption(2, "opt2"));
+        menuOptionsRegistry = new MenuOptionsRegistryImpl(options);
+    }
+
+    @DisplayName("должен возвращать список ожидаемых опций ")
+    @Test
+    void shouldReturnExpectedAvailableMenuOptions() {
+        var actualOptions = menuOptionsRegistry.getAvailableMenuOptions();
+        assertThat(actualOptions)
+                .usingRecursiveFieldByFieldElementComparator()
+                .containsExactlyInAnyOrderElementsOf(options);
+    }
+
+    @DisplayName("должен корректно возвращать опцию меню по ее идентификатору ")
+    @Test
+    void shouldReturnExpectedMenuOptionById() {
+        var expectedOption = options.get(0);
+        var actualOption = menuOptionsRegistry.getMenuOptionById(expectedOption.getId());
+        assertThat(actualOption).isNotEmpty()
+                .get()
+                .usingRecursiveComparison()
+                .isEqualTo(expectedOption);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/test/java/ru/otus/services/processors/AddNewNoteSingleCommandProcessorTest.java

@@ -0,0 +1,60 @@
+package ru.otus.services.processors;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import ru.otus.model.Note;
+import ru.otus.services.NotesService;
+import ru.otus.services.menu.MenuOption;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+@DisplayName("Процессор команды добавления новой заметки ")
+@ExtendWith(MockitoExtension.class)
+class AddNewNoteSingleCommandProcessorTest {
+
+    @Mock
+    private MenuOption processedCommandOption;
+
+    @Mock
+    private InputService inputService;
+
+    @Mock
+    private NotesService notesService;
+
+    @InjectMocks
+    private AddNewNoteSingleCommandProcessor processor;
+
+    @DisplayName("должен корректно добавлять новой заметки ")
+    @Test
+    void shouldCorrectAddExpectedNoteUseExpectedServicesMethods() {
+        var expectedNoteText = "Expected Note Text";
+        given(inputService.readStringWithPrompt(anyString()))
+                .willReturn(expectedNoteText);
+
+        processor.processCommand();
+
+        verify(inputService, times(1)).readStringWithPrompt(any());
+
+        var captor = ArgumentCaptor.forClass(Note.class);
+        verify(notesService).save(captor.capture());
+        var actualNote = captor.getValue();
+        assertThat(actualNote).extracting(Note::getText).isEqualTo(expectedNoteText);
+
+    }
+
+    @DisplayName("должен возвращает ожидаемый тип обрабатываемой команды")
+    @Test
+    void shouldReturnExpectedProcessedCommandOption() {
+        assertThat(processor.getProcessedCommandOption()).isEqualTo(processedCommandOption);
+    }
+}

2022-02/spring-00/architecture-origins/solution10_ocp_isp/src/test/java/ru/otus/services/processors/MenuCommandsProcessorImplTest.java

@@ -0,0 +1,50 @@
+package ru.otus.services.processors;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import ru.otus.exceptions.MenuCommandProcessorNotFound;
+import ru.otus.services.menu.MenuOption;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThatCode;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.*;
+
+@DisplayName("Процессор команд меню ")
+class MenuCommandsProcessorImplTest {
+
+    private List<MenuSingleCommandProcessor> singleCommandProcessors;
+    private MenuCommandsProcessorImpl processor;
+
+    @BeforeEach
+    void setUp() {
+        singleCommandProcessors = new ArrayList<>(3);
+        for (int i = 1; i < 4; i++) {
+            var opt = new MenuOption(i, "opt" + i);
+            var singleCommandProcessor = mock(MenuSingleCommandProcessor.class);
+            given(singleCommandProcessor.getProcessedCommandOption()).willReturn(opt);
+            singleCommandProcessors.add(singleCommandProcessor);
+        }
+        processor = new MenuCommandsProcessorImpl(singleCommandProcessors);
+    }
+
+    @DisplayName("должен корректно обрабатывать команду если для нее есть процессор")
+    @Test
+    void shouldCorrectProcessMenuCommandWhenProcessorForGivenCommandExists() {
+        for (var singleCommandProcessor: singleCommandProcessors) {
+            processor.processMenuCommand(singleCommandProcessor.getProcessedCommandOption());
+            verify(singleCommandProcessor, times(1)).processCommand();
+        }
+    }
+
+    @DisplayName("должен кидать ожидаемое исключение если процессор для заданной команды отсутствует")
+    @Test
+    void shouldThrowExpectedExceptionWhenProcessorForGivenCommandDoesNotExists() {
+        var commandOptionWithNotExistingProcessor = new MenuOption(4, "opt4");
+        assertThatCode(() -> processor.processMenuCommand(commandOptionWithNotExistingProcessor))
+                .isInstanceOf(MenuCommandProcessorNotFound.class);
+    }
+}