Week 03 - Assignment on Lecture 05 and 06

Week 01/Lecture 02/task7/src/main/java/model/Employee.java

@@ -19,21 +19,6 @@ public Employee(String id, String name, LocalDate dateOfBirth, String address, S
         this.department = department;
     }
 
-    /**
-     * Parses an array of attributes into an Employee object.
-     *
-     * @param attributes an array of strings representing the employee's id, name, date of birth, address, and department.
-     * @return an Employee object created from the provided attributes.
-     */
-    public static Employee fromCSV(String[] attributes) {
-        String id = attributes[0];
-        String name = attributes[1];
-        LocalDate dateOfBirth = DateUtils.parseDate(attributes[2]);
-        String address = attributes[3];
-        String department = attributes[4];
-        return new Employee(id, name, dateOfBirth, address, department);
-    }
-
     /**
      * Converts the Employee object to a CSV string format.
      *

Week 01/Lecture 02/task7/src/main/java/utils/DateUtils.java

@@ -2,9 +2,10 @@
 
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
 
 public class DateUtils {
-    private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("d/M/yyyy");
+    private static final DateTimeFormatter DATE_FORMATER = DateTimeFormatter.ofPattern("d/M/yyyy");
 
     /**
      * Parses a date string in the format "d/M/yyyy" and returns a LocalDate object.
@@ -13,8 +14,13 @@ public class DateUtils {
      * @return the parsed LocalDate object
      * @throws IllegalArgumentException if the date string cannot be parsed
      */
-    public static LocalDate parseDate(String dateString) {
-        return LocalDate.parse(dateString, formatter);
+    public static LocalDate parseDate(String dateStr) {
+        try {
+            return LocalDate.parse(dateStr, DATE_FORMATER);
+        } catch (DateTimeParseException e) {
+            System.out.println("Error parsing date: " + dateStr);
+            throw e;
+        }
     }
 
     /**
@@ -24,6 +30,6 @@ public static LocalDate parseDate(String dateString) {
      * @return the formatted string in the specified format
      */
     public static String formatDate(LocalDate date) {
-        return date.format(formatter);
+        return date.format(DATE_FORMATER);
     }
 }

Week 01/Lecture 02/task7/src/main/java/utils/FileUtils.java

@@ -30,7 +30,7 @@ public static List<Employee> readEmployeesFromCSVManual(String filePath) throws
             br.readLine(); // Skip header
             while ((line = br.readLine()) != null) {
                 String[] attributes = line.split(",");
-                Employee employee = Employee.fromCSV(attributes);
+                Employee employee = fromCSV(attributes);
                 employees.add(employee);
             }
         } catch (FileNotFoundException e) {
@@ -55,7 +55,7 @@ public static List<Employee> readEmployeesFromCSVOpenCSV(String filePath) throws
             String[] line;
             reader.readNext(); // Skip header
             while ((line = reader.readNext()) != null) {
-                Employee employee = Employee.fromCSV(line);
+                Employee employee = fromCSV(line);
                 employees.add(employee);
             }
         } catch (FileNotFoundException e) {
@@ -83,4 +83,19 @@ public static void writeEmployeesToCSV(List<Employee> employees, String filePath
             throw new FileNotFoundException("Error writing employee" + e);
         }
     }
+
+    /**
+     * Parses an array of attributes into an Employee object.
+     *
+     * @param attributes an array of strings representing the employee's id, name, date of birth, address, and department.
+     * @return an Employee object created from the provided attributes.
+     */
+    public static Employee fromCSV(String[] attributes) {
+        String id = attributes[0];
+        String name = attributes[1];
+        LocalDate dateOfBirth = DateUtils.parseDate(attributes[2]);
+        String address = attributes[3];
+        String department = attributes[4];
+        return new Employee(id, name, dateOfBirth, address, department);
+    }
 }

Week 03/Lecture 05/Assignment 01/README.md

@@ -0,0 +1,130 @@
+# 👨🏻‍🏫 Lecture 05 - Basic Backend, Spring
+> This repository is created as a part of assignment for Lecture 05 - Basic Backend, Spring
+
+## 🔎 Assignment 01 - Practice the Example
+### 🌳 Project Structure
+```bash
+lecture_5
+├── .mvn/wrapper/
+│   └── maven-wrapper.properties
+├── src/main/
+│   ├── java/com/example/lecture_5_hw/
+│   │   ├── controller/
+│   │   │   └── ContactController.java
+│   │   ├── model/
+│   │   │   └── Contact.java
+│   │   ├── repository/
+│   │   │   └── ContactRepository.java
+│   │   └── Lecture5Application.java
+│   └── resources/
+│       └── application.properties
+├── .gitignore
+├── mvnw
+├── mvnw.cmd
+├── pom.xml
+├── run.bat
+└── run.sh
+```
+
+### 🧩 SQL Query Data
+Here is the SQL query to create the database, table, and instantiate some data, given by the [reference repository](https://github.com/NguyenVanTrieu/spring-crud).
+```sql
+-- Create the database
+CREATE DATABASE week3_lecture5;
+
+-- Use the database
+USE week3_lecture5;
+
+-- Create the contact table
+CREATE TABLE `contact` (
+           `name` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
+           `age` int(3) NOT NULL,
+           `dob` date NOT NULL,
+           `email` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
+           `id` varchar(50) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+
+ALTER TABLE `contact`
+    ADD PRIMARY KEY (`id`);
+
+-- Insert dummy data into the contact table
+INSERT INTO `contact` (`name`, `age`, `dob`, `email`, `id`) VALUES
+('Daniel Jon', 22, '2017-11-15', 'jon@gamil.com', "1d61dd2d-f084-45e5-b561-c50dfed5468b"),
+('David Jame', 22, '2017-11-01', 'jame@gmail.com', "d5353061-f51e-4871-9623-37abe50dd14c"),
+('Hela', 23, '1997-11-01', 'hela@gmail.com', "884422c6-3839-4052-b1f5-a6a349248a58"),
+('Bruno', 25, '1990-11-01', 'bruno@gmail.com', "5d36942d-94e6-4f70-9106-8bd88c445585");
+```
+
+and here is the query to drop the database
+```sql
+-- Drop the database
+DROP DATABASE IF EXISTS week3_lecture5;
+```
+
+### ⚙️ How to run the program
+1. Go to the `lecture_5` directory by using this command
+    ```bash
+    $ cd lecture_5
+    ```
+2. Make sure you have maven installed on your computer, use `mvn -v` to check the version.
+3. If you are using windows, you can run the program by using this command.
+    ```bash
+    $ ./run.bat
+    ```
+    And if you are using Linux, you can run the program by using this command.
+    ```bash
+    $ chmod +x run.sh
+    $ ./run.sh
+    ```
+
+If all the instruction is well executed, the main-view will be something like this.
+
+![Screenshot](img/start.png)
+
+### 📸 Screenshots
+Here is some result of the APIs created. based on the postman collection with slight modification.
+<br>
+#### Initial state
+
+![Screenshot](img/init.png)
+
+1. **Get All Contacts** 
+    `(GET /api/v1/contact)`
+
+    ![Screenshot](img/api1.png)
+2. **Get Contact By ID**
+    `(GET /api/v1/contact/b002747b-4cc3-4a81-bd7e-e3184da0410a)`
+
+    ![Screenshot](img/api2.png)
+3. **Add New Contact**
+    `(POST /api/v1/contact)`
+
+    Body (Raw):
+    ```json
+    {
+        "name": "Trieu",
+        "dob": "2017-11-14T17:00:00.000+00:00",
+        "age": 22,
+        "email": "trieu@gamil.com",
+        "id": "b002747b-4cc3-4a81-bd7e-e3184da0410p"
+    }
+    ```
+
+    ![Screenshot](img/api3.png)
+    ![Screenshot](img/api32.png)
+4. **Edit Contact**
+    `(PUT /api/v1/contact/b002747b-4cc3-4a81-bd7e-e3184da0410p)`
+
+    Body (Raw):
+    ```json
+    {
+        "name": "Tom",
+        "dob": "2017-11-14T17:00:00.000+00:00",
+        "age": 23,
+        "email": "jon@gmail.com"
+    }
+    ```
+
+    ![Screenshot](img/api4.png)
+    ![Screenshot](img/api42.png)

Week 03/Lecture 05/Assignment 01/lecture_5/run.bat

@@ -0,0 +1,3 @@
+@echo off
+echo Building the project with Maven...
+mvn clean install && java -jar target/lecture_5-1.0-SNAPSHOT.jar

Week 03/Lecture 05/Assignment 01/lecture_5/run.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+echo Building the project with Maven...
+mvn clean install && java -jar target/lecture_5-1.0-SNAPSHOT.jar

Week 03/Lecture 05/Assignment 02/Lecture 05 - Assignment 02.postman_collection.json

@@ -0,0 +1,119 @@
+{
+	"info": {
+		"_postman_id": "859f23f0-952d-4e0d-b176-9816219a20e5",
+		"name": "Lecture 05 - Assignment 02",
+		"description": "This postman collection is created by Michael Leon as a part of assignment 02 for Lecture 05 - Basic Backend, Spring",
+		"schema": "https://schema.getpostman.com/json/collection/v2.0.0/collection.json",
+		"_exporter_id": "34693283"
+	},
+	"item": [
+		{
+			"name": "Get All Employees",
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": "localhost:8080/api/v1/employee"
+			},
+			"response": []
+		},
+		{
+			"name": "Get Employee By ID",
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": "localhost:8080/api/v1/employee/3ccd3c90-890e-41c4-9fa3-456f3d97f999"
+			},
+			"response": []
+		},
+		{
+			"name": "Add New Employee",
+			"request": {
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\r\n    \"id\": \"b002747b-4cc3-4a81-bd7e-e3184da0410a\",\r\n    \"name\": \"Michael Leon\",\r\n    \"dob\": \"2003-12-18\",\r\n    \"address\": \"Anytime anywhere\",\r\n    \"department\": \"MOBILE\"\r\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": "localhost:8080/api/v1/employee"
+			},
+			"response": []
+		},
+		{
+			"name": "Edit Employee",
+			"request": {
+				"method": "PUT",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\r\n    \"name\": \"Leon Michael\",\r\n    \"dob\": \"2003-12-18\",\r\n    \"address\": \"Anytime anywhere anyplace\",\r\n    \"department\": \"MOBILE\"\r\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": "localhost:8080/api/v1/employee/b002747b-4cc3-4a81-bd7e-e3184da0410a"
+			},
+			"response": []
+		},
+		{
+			"name": "Delete Employee",
+			"request": {
+				"method": "DELETE",
+				"header": [],
+				"url": "localhost:8080/api/v1/employee/b002747b-4cc3-4a81-bd7e-e3184da0410a"
+			},
+			"response": []
+		},
+		{
+			"name": "Post CSV",
+			"request": {
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "formdata",
+					"formdata": [
+						{
+							"key": "file",
+							"type": "file",
+							"src": "/C:/Users/user/Documents/College/ITB - Informatika/Semester 7/Kerja Praktik (KP)/java-leon/Week 03/Lecture 05/Assignment 02/lecture_5_hw/src/main/java/com/example/lecture_5_hw/data/ImportData.csv"
+						}
+					]
+				},
+				"url": "localhost:8080/api/v1/employee/upload-csv"
+			},
+			"response": []
+		},
+		{
+			"name": "Get Employees by Department",
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "localhost:8080/api/v1/employee?department=QA",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"api",
+						"v1",
+						"employee"
+					],
+					"query": [
+						{
+							"key": "department",
+							"value": "QA"
+						}
+					]
+				}
+			},
+			"response": []
+		}
+	]
+}