Added 10-task-tracker

13 files changed, 378 insertions, 0 deletions

diff --git a/oop/10-task-tracker/.gitignore b/oop/10-task-tracker/.gitignore
new file mode 100644
index 0000000..eb5a316
--- /dev/null
+++ b/oop/10-task-tracker/.gitignore
@@ -0,0 +1 @@
+target
diff --git a/oop/10-task-tracker/.mvn/jvm.config b/oop/10-task-tracker/.mvn/jvm.config
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/oop/10-task-tracker/.mvn/jvm.config
diff --git a/oop/10-task-tracker/.mvn/maven.config b/oop/10-task-tracker/.mvn/maven.config
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/oop/10-task-tracker/.mvn/maven.config
diff --git a/oop/10-task-tracker/docs/01-requirements.txt b/oop/10-task-tracker/docs/01-requirements.txt
new file mode 100644
index 0000000..932d793
--- /dev/null
+++ b/oop/10-task-tracker/docs/01-requirements.txt
@@ -0,0 +1,6 @@
+A task tracking system is to be developed. A user should be able to enter
+new tasks into the system either assigning it to a user or unassigned. A
+task should have a title and a description. It should be possible to update
+the estimated time of a task. Once a task is completed, the user should be
+able to set the actual time spent on the task. The software should allow
+viewing the tasks assigned to a user.
diff --git a/oop/10-task-tracker/docs/02-domain-model.uxf b/oop/10-task-tracker/docs/02-domain-model.uxf
new file mode 100644
index 0000000..89ed41a
--- /dev/null
+++ b/oop/10-task-tracker/docs/02-domain-model.uxf
@@ -0,0 +1,13 @@
+<diagram program="umletino" version="15.1"><zoom_level>10</zoom_level><element><id>UMLClass</id><coordinates><x>60</x><y>100</y><w>100</w><h>60</h></coordinates><panel_attributes>User
+--
+id
+username</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>360</x><y>100</y><w>100</w><h>120</h></coordinates><panel_attributes>Task
+--
+id
+title
+description
+estimatedTime
+actualTime
+completed</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>150</x><y>100</y><w>230</w><h>40</h></coordinates><panel_attributes>lt=&lt;-
+&lt; createdBy</panel_attributes><additional_attributes>10;20;210;20</additional_attributes></element><element><id>Relation</id><coordinates><x>150</x><y>130</y><w>230</w><h>40</h></coordinates><panel_attributes>lt=&lt;-
+&lt; assignedTo</panel_attributes><additional_attributes>10;20;210;20</additional_attributes></element></diagram>
\ No newline at end of file
diff --git a/oop/10-task-tracker/docs/03-design.uxf b/oop/10-task-tracker/docs/03-design.uxf
new file mode 100644
index 0000000..04a2deb
--- /dev/null
+++ b/oop/10-task-tracker/docs/03-design.uxf
@@ -0,0 +1,40 @@
+<diagram program="umletino" version="15.1"><zoom_level>10</zoom_level><element><id>UMLClass</id><coordinates><x>20</x><y>420</y><w>120</w><h>60</h></coordinates><panel_attributes>User
+--
+id: int
+username: String</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>290</x><y>420</y><w>150</w><h>120</h></coordinates><panel_attributes>Task
+--
+id: int
+title: String
+description: String
+estimatedTime: Duration
+actualTime: Duration
+completed: boolean</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>130</x><y>420</y><w>180</w><h>40</h></coordinates><panel_attributes>lt=&lt;-
+&lt; createdBy</panel_attributes><additional_attributes>10;20;160;20</additional_attributes></element><element><id>Relation</id><coordinates><x>130</x><y>450</y><w>180</w><h>40</h></coordinates><panel_attributes>lt=&lt;-
+&lt; assignedTo</panel_attributes><additional_attributes>10;20;160;20</additional_attributes></element><element><id>UMLClass</id><coordinates><x>30</x><y>0</y><w>110</w><h>90</h></coordinates><panel_attributes>TextUI
+--
+--
+createNewTask()
+updateTask()
+createNewUser()
+start()</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>230</x><y>0</y><w>320</w><h>90</h></coordinates><panel_attributes>&lt;&lt;interface&gt;&gt;
+TaskManager
+--
+--
+createNewTask(title: String, description: String): Task
+findById(id: int): Task
+updateTask(task: Task)
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>0</x><y>170</y><w>210</w><h>70</h></coordinates><panel_attributes>&lt;&lt;interface&gt;&gt;
+UserManager
+--
+--
+createNewUser(username: String)</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>130</x><y>10</y><w>120</w><h>30</h></coordinates><panel_attributes>lt=&lt;-</panel_attributes><additional_attributes>100;10;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>80</x><y>80</y><w>30</w><h>110</h></coordinates><panel_attributes>lt=&lt;-</panel_attributes><additional_attributes>10;90;10;10</additional_attributes></element><element><id>UMLClass</id><coordinates><x>230</x><y>190</y><w>310</w><h>90</h></coordinates><panel_attributes>InMemoryTaskManager
+--
+--
+createNewTask(title: String, description: String): Task
+findById(id: int): Task
+updateTask(task: Task)
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>350</x><y>80</y><w>30</w><h>130</h></coordinates><panel_attributes>lt=&lt;&lt;.</panel_attributes><additional_attributes>10;10;10;110</additional_attributes></element><element><id>Relation</id><coordinates><x>360</x><y>270</y><w>40</w><h>170</h></coordinates><panel_attributes>lt=&lt;&lt;&lt;&lt;-
+m2=*</panel_attributes><additional_attributes>10;10;10;150</additional_attributes></element><element><id>UMLClass</id><coordinates><x>0</x><y>320</y><w>210</w><h>50</h></coordinates><panel_attributes>DBUserManager
+--
+--
+createNewUser(username: String)</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>70</x><y>230</y><w>30</w><h>110</h></coordinates><panel_attributes>lt=&lt;&lt;.</panel_attributes><additional_attributes>10;10;10;90</additional_attributes></element></diagram>
\ No newline at end of file
diff --git a/oop/10-task-tracker/pom.xml b/oop/10-task-tracker/pom.xml
new file mode 100644
index 0000000..7989c8c
--- /dev/null
+++ b/oop/10-task-tracker/pom.xml
@@ -0,0 +1,90 @@
+<?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>lk.ac.pdn.ceit.tasks</groupId>
+  <artifactId>task-tracker</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>task-tracker</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.release>25</maven.compiler.release>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>org.junit</groupId>
+        <artifactId>junit-bom</artifactId>
+        <version>5.11.0</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <!-- Optionally: parameterized tests support -->
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+      <plugins>
+        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+        <plugin>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.4.0</version>
+        </plugin>
+        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+        <plugin>
+          <artifactId>maven-resources-plugin</artifactId>
+          <version>3.3.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.13.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>3.3.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.4.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>3.1.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>3.1.2</version>
+        </plugin>
+        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+        <plugin>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.12.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.6.1</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>
diff --git a/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/App.java b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/App.java
new file mode 100644
index 0000000..bb0ab24
--- /dev/null
+++ b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/App.java
@@ -0,0 +1,15 @@
+package lk.ac.pdn.ceit.tasks;
+
+import lk.ac.pdn.ceit.tasks.ui.TextUI;
+
+/**
+ * Hello world!
+ */
+public class App {
+    public static void main(String[] args) {
+        TextUI ui = new TextUI();
+        // ui.setTaskManager();
+
+        ui.start();
+    }   
+}
diff --git a/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/TaskManager.java b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/TaskManager.java
new file mode 100644
index 0000000..8e22b30
--- /dev/null
+++ b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/TaskManager.java
@@ -0,0 +1,9 @@
+package lk.ac.pdn.ceit.tasks;
+
+import lk.ac.pdn.ceit.tasks.entities.Task;
+
+public interface TaskManager {
+    public Task createNewTask(String title, String description);
+    public Task findById(int id);
+    public void updateTask(Task task);
+}
diff --git a/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/entities/Task.java b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/entities/Task.java
new file mode 100644
index 0000000..26dfc4a
--- /dev/null
+++ b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/entities/Task.java
@@ -0,0 +1,84 @@
+package lk.ac.pdn.ceit.tasks.entities;
+
+import java.time.Duration;
+
+public class Task {
+    private User createdBy;
+    private User assignedTo;
+    
+    private int id;
+    private String title;
+    private String description;
+    private Duration estimatedTime;
+    private Duration actualTime;
+    private boolean completed;
+    
+    public Task() {
+    }
+
+    public Task(int id, String title, String description) {
+        this.id = id;
+        this.title = title;
+        this.description = description;
+    }
+
+    public int getId() {
+        return id;
+    }
+    public void setId(int id) {
+        this.id = id;
+    }
+    public String getTitle() {
+        return title;
+    }
+    public void setTitle(String title) {
+        this.title = title;
+    }
+    public String getDescription() {
+        return description;
+    }
+    public void setDescription(String description) {
+        this.description = description;
+    }
+    public Duration getEstimatedTime() {
+        return estimatedTime;
+    }
+    public void setEstimatedTime(Duration estimatedTime) {
+        this.estimatedTime = estimatedTime;
+    }
+    public Duration getActualTime() {
+        return actualTime;
+    }
+    public void setActualTime(Duration actualTime) {
+        this.actualTime = actualTime;
+    }
+    public boolean isCompleted() {
+        return completed;
+    }
+    public void setCompleted(boolean completed) {
+        this.completed = completed;
+    }
+
+    public User getCreatedBy() {
+        return createdBy;
+    }
+
+    public void setCreatedBy(User createdBy) {
+        this.createdBy = createdBy;
+    }
+
+    public User getAssignedTo() {
+        return assignedTo;
+    }
+
+    public void setAssignedTo(User assignedTo) {
+        this.assignedTo = assignedTo;
+    }
+
+    @Override
+    public String toString() {
+        return "Task [id=" + id + ", title=" + title + ", description=" + description + ", estimatedTime="
+                + estimatedTime + ", actualTime=" + actualTime + ", completed=" + completed + "]";
+    }
+
+}
diff --git a/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/entities/User.java b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/entities/User.java
new file mode 100644
index 0000000..2c45fc2
--- /dev/null
+++ b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/entities/User.java
@@ -0,0 +1,32 @@
+package lk.ac.pdn.ceit.tasks.entities;
+
+public class User {
+    private int id;
+    private String username;
+    
+    public User() {
+    }
+
+    public User(int id, String username) {
+        this.id = id;
+        this.username = username;
+    }
+    
+    public int getId() {
+        return id;
+    }
+    public void setId(int id) {
+        this.id = id;
+    }
+    public String getUsername() {
+        return username;
+    }
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    @Override
+    public String toString() {
+        return "User [id=" + id + ", username=" + username + "]";
+    }    
+}
diff --git a/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/ui/TextUI.java b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/ui/TextUI.java
new file mode 100644
index 0000000..6bce661
--- /dev/null
+++ b/oop/10-task-tracker/src/main/java/lk/ac/pdn/ceit/tasks/ui/TextUI.java
@@ -0,0 +1,69 @@
+package lk.ac.pdn.ceit.tasks.ui;
+
+import lk.ac.pdn.ceit.tasks.TaskManager;
+import lk.ac.pdn.ceit.tasks.entities.Task;
+
+public class TextUI {
+    private TaskManager taskManager;
+
+    public void setTaskManager(TaskManager taskManager) {
+        this.taskManager = taskManager;
+    }
+
+    public void start() {
+        while(true) {
+            String command = IO.readln("Command> ");
+
+            switch (command.trim().toLowerCase()) {
+                case "q":
+                case "quit":
+                    IO.println("Thank you for using Task Tracker.");
+                    System.exit(0);
+
+                case "createtask":
+                    createNewTask();
+                    break;
+
+                case "updatetask":
+                    updateTask();
+                    break;
+
+                default:
+                    IO.println("Command not found.");
+                    break;
+            }
+        }
+    }
+
+    private void createNewTask() {
+        String title = IO.readln("Enter task title: ");
+        String description = IO.readln("Enter task description: ");
+
+        Task newTask = taskManager.createNewTask(title, description);
+
+        IO.print("New task created: " + newTask);
+    }
+    
+    private void updateTask() {
+        // Ask the user to enter task id
+        String taskId = IO.readln("Enter task ID: ");
+
+        // Get the Task from TaskManager
+        Task task = taskManager.findById(Integer.parseInt(taskId));
+
+        // Show the Task details to user
+        IO.print(task);
+
+        // Prompt the user to update Task properties
+        String title = IO.readln("New title: ");
+        if (! title.equals("")) {
+            task.setTitle(title);
+        }
+        // ...
+
+        // Use the TaskManager and update the task
+        taskManager.updateTask(task);
+        IO.println("Task updated.");
+    }
+
+}
diff --git a/oop/10-task-tracker/src/test/java/lk/ac/pdn/ceit/tasks/AppTest.java b/oop/10-task-tracker/src/test/java/lk/ac/pdn/ceit/tasks/AppTest.java
new file mode 100644
index 0000000..c9bcf0c
--- /dev/null
+++ b/oop/10-task-tracker/src/test/java/lk/ac/pdn/ceit/tasks/AppTest.java
@@ -0,0 +1,19 @@
+package lk.ac.pdn.ceit.tasks;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest {
+
+    /**
+     * Rigorous Test :-)
+     */
+    @Test
+    public void shouldAnswerWithTrue() {
+        assertTrue(true);
+    }
+}