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Task3608
1 parent f9be477 commit 20feb98

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‎3.JavaMultithreading/src/com/javarush/task/task36/task3608/Solution.java‎

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package com.javarush.task.task36.task3608;
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import com.javarush.task.task36.task3608.controller.Controller;
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import com.javarush.task.task36.task3608.model.MainModel;
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import com.javarush.task.task36.task3608.model.Model;
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import com.javarush.task.task36.task3608.view.EditUserView;
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import com.javarush.task.task36.task3608.view.UsersView;
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public class Solution {
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public static void main(String[] args) {
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Model model = new MainModel();
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UsersView usersView = new UsersView();
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EditUserView editUserView = new EditUserView();
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Controller controller = new Controller();
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usersView.setController(controller);
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editUserView.setController(controller);
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controller.setModel(model);
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controller.setUsersView(usersView);
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controller.setEditUserView(editUserView);
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usersView.fireEventShowAllUsers();
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usersView.fireEventOpenUserEditForm(126L);
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editUserView.fireEventUserChanged("Jackson", 126L, 3);
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editUserView.fireEventUserDeleted(124L);
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usersView.fireEventShowDeletedUsers();
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}
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}

‎3.JavaMultithreading/src/com/javarush/task/task36/task3608/Util.java‎

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package com.javarush.task.task36.task3608;
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import com.javarush.task.task36.task3608.bean.User;
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public final class Util {
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public static final String DELETED_MARKER = " (deleted)";
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public static boolean isUserDeleted(User user) {
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return user.getName().endsWith(DELETED_MARKER);
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}
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public static void markDeleted(User user) {
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if (User.NULL_USER != user && !Util.isUserDeleted(user)) {
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user.setName(user.getName() + DELETED_MARKER);
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}
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}
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}

‎3.JavaMultithreading/src/com/javarush/task/task36/task3608/bean/User.java‎

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package com.javarush.task.task36.task3608.bean;
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public class User implements Cloneable {
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private String name;
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private final long id;
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private int level;
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public static final User NULL_USER = new User();
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public User(String name, long id, int level) {
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this.name = name;
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this.id = id;
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this.level = level;
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}
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public User() {
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this("", 0, 0);
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}
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//methods with logic
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public boolean isNew() {
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return id == 0;
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}
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public User clone() {
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try {
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return (User) super.clone();
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} catch (CloneNotSupportedException ignored) {
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return NULL_USER;
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}
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}
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public User clone(long newId) {
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if (this == NULL_USER) return NULL_USER;
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return new User(name, newId, level);
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}
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///// getters and setters
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public long getId() {
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return id;
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}
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public int getLevel() {
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return level;
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}
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public void setLevel(int level) {
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this.level = level;
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}
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@Override
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public String toString() {
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return "User{" +
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"name='" + name + '\'' +
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", id=" + id +
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", level=" + level +
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'}';
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}
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}

‎3.JavaMultithreading/src/com/javarush/task/task36/task3608/controller/Controller.java‎

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package com.javarush.task.task36.task3608.controller;
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import com.javarush.task.task36.task3608.model.Model;
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import com.javarush.task.task36.task3608.view.EditUserView;
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import com.javarush.task.task36.task3608.view.UsersView;
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public class Controller {
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private Model model;
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private UsersView usersView;
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private EditUserView editUserView;
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public void setModel(Model model) {
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this.model = model;
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}
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public void setUsersView(UsersView usersView) {
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this.usersView = usersView;
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}
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public void setEditUserView(EditUserView editUserView) {
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this.editUserView = editUserView;
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}
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public void onShowAllUsers() {
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model.loadUsers();
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usersView.refresh(model.getModelData());
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}
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public void onShowAllDeletedUsers() {
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model.loadDeletedUsers();
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usersView.refresh(model.getModelData());
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}
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public void onOpenUserEditForm(long id) {
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model.loadUserById(id);
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editUserView.refresh(model.getModelData());
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}
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public void onUserDelete(long id) {
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model.deleteUserById(id);
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usersView.refresh(model.getModelData());
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}
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public void onUserChange(String name, long id, int level) {
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model.changeUserData(name, id, level);
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usersView.refresh(model.getModelData());
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}
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}

‎3.JavaMultithreading/src/com/javarush/task/task36/task3608/dao/UserDao.java‎

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package com.javarush.task.task36.task3608.dao;
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import com.javarush.task.task36.task3608.bean.User;
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import com.javarush.task.task36.task3608.dao.mock.DataSource;
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import java.util.ArrayList;
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import java.util.List;
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public class UserDao {
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private DataSource dataSource = DataSource.getInstance();
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public User getUserById(long id) {
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List<User> users = dataSource.getUsers();
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for (User user : users) {
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if (user.getId() == id) {
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return user.clone();
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}
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}
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return User.NULL_USER;
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}
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public List<User> getUsersByName(String name) {
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if (name == null || name.trim().isEmpty()) throw new IllegalArgumentException();
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List<User> users = dataSource.getUsers();
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List<User> result = new ArrayList<>();
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for (User user : users) {
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if (name.equals(user.getName())) {
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addUserToResult(result, user);
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}
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}
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return result;
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}
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public List<User> getAllUsers() {
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List<User> users = dataSource.getUsers();
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List<User> result = new ArrayList<>();
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for (User user : users) {
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addUserToResult(result, user);
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}
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return result;
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}
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public List<User> getUsersByLevel(int level) {
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if (level < 1) throw new IllegalArgumentException();
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List<User> users = dataSource.getUsers();
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List<User> result = new ArrayList<>();
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for (User user : users) {
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if (level == user.getLevel()) {
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addUserToResult(result, user);
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}
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}
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return result;
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}
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public void addUserToResult(List<User> result, User user) {
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User clone = user.clone();
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//skip bad users
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if (clone != User.NULL_USER) {
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result.add(clone);
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}
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}
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public User createOrUpdate(User user) {
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return dataSource.createOrUpdate(user);
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}
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public User getUsersById(long userId) {
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if (userId < 1) throw new IllegalArgumentException();
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List<User> users = dataSource.getUsers();
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for (User user : users) {
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if (userId == user.getId()) {
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return user;
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}
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}
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return User.NULL_USER;
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}
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}

‎3.JavaMultithreading/src/com/javarush/task/task36/task3608/dao/mock/DataSource.java‎

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package com.javarush.task.task36.task3608.dao.mock;
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import com.javarush.task.task36.task3608.bean.User;
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import java.util.LinkedList;
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import java.util.List;
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public class DataSource {
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private static DataSource ourInstance = new DataSource();
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public static DataSource getInstance() {
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return ourInstance;
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}
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private DataSource() {
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}
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private List<User> users = new LinkedList<User>() {{
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add(new User("Ivanov", 123l, 1));
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add(new User("Petrov", 124l, 2));
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add(new User("Petrov", 125l, 1));
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add(new User("Sidorov", 126l, 2));
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}};
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private long maxUserId = 126l;
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public List<User> getUsers() {
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return users;
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}
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public User createOrUpdate(User newUser) {
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if (newUser == User.NULL_USER)
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return User.NULL_USER;
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//new User
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if (newUser.getId() == 0)
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return createNewUser(newUser);
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else
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return updateUser(newUser);
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}
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private User createNewUser(User newUser) {
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User clone = newUser.clone(++maxUserId);
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users.add(clone);
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return clone;
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}
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private User updateUser(User newUser) {
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for (User user : users) {
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if (user.getId() == newUser.getId()) {
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user.setName(newUser.getName());
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user.setLevel(newUser.getLevel());
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return user;
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}
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}
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//if we didn't find such a user
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return User.NULL_USER;
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}
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}

‎3.JavaMultithreading/src/com/javarush/task/task36/task3608/model/FakeModel.java‎

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package com.javarush.task.task36.task3608.model;
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import com.javarush.task.task36.task3608.bean.User;
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import java.util.ArrayList;
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import java.util.List;
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public class FakeModel implements Model {
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private final ModelData modelData = new ModelData();
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@Override
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public ModelData getModelData() {
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return modelData;
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}
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@Override
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public void loadUsers() {
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List<User> users = new ArrayList<>();
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users.add(new User("A", 1, 1));
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users.add(new User("B", 2, 1));
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modelData.setUsers(users);
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}
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@Override
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public void loadDeletedUsers() {
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throw new UnsupportedOperationException();
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}
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@Override
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public void loadUserById(long id) {
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throw new UnsupportedOperationException();
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}
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@Override
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public void deleteUserById(long id) {
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throw new UnsupportedOperationException();
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}
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@Override
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public void changeUserData(String name, long id, int level) {
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throw new UnsupportedOperationException();
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}
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}

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