Add MicroBlog API

postgresqlJava/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

postgresqlJava/.idea/compiler.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="postgresqlJava" />
+      </profile>
+    </annotationProcessing>
+  </component>
+</project>
\ No newline at end of file

postgresqlJava/.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file

postgresqlJava/.idea/jarRepositories.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Central Repository" />
+      <option name="url" value="https://repo.maven.apache.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file

postgresqlJava/.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK" />
+</project>
\ No newline at end of file

postgresqlJava/.idea/runConfigurations.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
\ No newline at end of file

postgresqlJava/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

postgresqlJava/README.md

+#### Microblog API for Java
+
+Here is the first version of Microblog API.
+

postgresqlJava/pom.xml

+<?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>postgresqlJava</groupId>
+  <artifactId>postgresqlJava</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>postgresqlJava</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.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.postgresql</groupId>
+      <artifactId>postgresql</artifactId>
+      <version>42.2.23</version>
+    </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>3.1.0</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>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>2.5.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.2</version>
+        </plugin>
+        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+        <plugin>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.7.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.0.0</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>

postgresqlJava/src/main/java/postgresqlJava/App.java

+package postgresqlJava;
+
+import java.sql.SQLException;
+import java.util.UUID;
+
+/**
+ * App
+ *
+ */
+public class App 
+{
+    public static void main( String[] args ) throws SQLException {
+        Microblog microblog = new Microblog("172.28.100.8");
+        //microblog.createUser("toto","titi");
+        // UUID.fromString("ca0eb23c-1a53-11ec-8526-293e013173f6") Si ajout d'uuid
+        //microblog.publish_post("toto","titi","test",null);
+        //microblog.follow("toto","titi",UUID.fromString("2b371920-1a52-11ec-8526-293e013173f6"));
+        //microblog.get_messages();
+        microblog.get_feed("user0","userpass0",10);
+    }
+
+}

postgresqlJava/src/main/java/postgresqlJava/Microblog.java

+package postgresqlJava;
+
+import java.sql.*;
+import java.util.UUID;
+
+public class Microblog {
+
+    public Connection c;
+
+    public Microblog(String ip){
+        try{
+            Class.forName("org.postgresql.Driver");
+            c = DriverManager.getConnection("jdbc:postgresql://"+ip+":5432/microblog","korentin","123456");
+        } catch (ClassNotFoundException | SQLException e) {
+            e.printStackTrace();
+        }
+        System.out.println("Connection succesfull");
+    }
+
+
+    /**
+     * Publish a post
+     * @param user the name of the user
+     * @param password the password of the user
+     * @param content the content
+     * @throws SQLException on SQL Exception
+     */
+    public void publish_post(String user,String password,String content) throws SQLException {
+        publish_post(user,password,content,null);
+    }
+
+
+    /**
+     * Publish a post
+     * @param user the username of the user
+     * @param password the password of the user
+     * @param content the content of the message
+     * @param uuid the uuid of the user that the post reply to (nullable)
+     * @throws SQLException on SQLException
+     */
+    public void publish_post(String user, String password, String content, UUID uuid) throws SQLException {
+        PreparedStatement preparedStatement = c.prepareStatement("SELECT insert_message(?,?,?,?)");
+        preparedStatement.setString(1,user);
+        preparedStatement.setString(2,password);
+        preparedStatement.setString(3,content);
+        preparedStatement.setObject(4,uuid);
+        if(! (preparedStatement.execute())){
+            System.out.println("Error While insert Message");
+        }else{
+            ResultSet resultSet = preparedStatement.getResultSet();
+            while(resultSet.next()){
+                System.out.println(resultSet.getObject(1));
+            }
+            System.out.println("Message Insert");
+        }
+    }
+
+    /**
+     * Create a user
+     * @param username the name of the user
+     * @param password the password of the user
+     * @throws SQLException on SQLException
+     */
+    public void createUser(String username, String password) throws SQLException {
+        PreparedStatement preparedStatement = c.prepareStatement("SELECT create_user(?,?)");
+        preparedStatement.setString(1,username);
+        preparedStatement.setString(2,password);
+        if(! (preparedStatement.execute())){
+            System.out.println("Error While creating user");
+        }else{
+            ResultSet resultSet = preparedStatement.getResultSet();
+            while(resultSet.next()) {
+                System.out.println(resultSet.getObject(1));
+            }
+        }
+    }
+
+    /**
+     * Follow a user
+     * @param userame the name of the user
+     * @param password the password of the user
+     * @param uuid the uuid of the user to follow
+     * @throws SQLException on SQLException
+     */
+    public void follow(String userame,String password,UUID uuid) throws SQLException {
+        PreparedStatement preparedStatement = c.prepareStatement("SELECT follow(?,?,?)");
+        preparedStatement.setString(1,userame);
+        preparedStatement.setString(2,password);
+        preparedStatement.setObject(3,uuid);
+        if(! (preparedStatement.execute())){
+            System.out.println("Error While creating user");
+        }else{
+            System.out.println("Follow succes");
+        }
+    }
+
+    /**
+     * Get the feed of user
+     * @param username the username
+     * @param password the password
+     * @throws SQLException on SQLException
+     */
+    public void get_feed(String username,String password) throws SQLException {
+        get_feed(username,password,50);
+    }
+
+    /**
+     * Get the feed of user
+     * @param username the username
+     * @param password the password
+     * @param limit on SQLException
+     * @throws SQLException
+     */
+    public void get_feed(String username,String password, int limit) throws SQLException {
+        PreparedStatement preparedStatement = c.prepareStatement("SELECT feed(?,?) LIMIT ?");
+        preparedStatement.setString(1,username);
+        preparedStatement.setString(2,password);
+        preparedStatement.setInt(3,limit);
+        if(! (preparedStatement.execute())){
+            System.out.println("Error While creating user");
+        }else{
+            ResultSet resultSet = preparedStatement.getResultSet();
+            while(resultSet.next()) {
+                System.out.println("Feed row");
+                System.out.println(resultSet.getObject(1));
+                System.out.println("\n");
+            }
+        }
+    }
+
+    /**
+     * Get view Messages
+     */
+    public void get_messages() throws SQLException {
+        PreparedStatement preparedStatement = c.prepareStatement("SELECT * from messages");
+        if(! (preparedStatement.execute())){
+            System.out.println("Error While creating user");
+        }else {
+            ResultSet resultSet = preparedStatement.getResultSet();
+            while (resultSet.next()) {
+                System.out.println("Message Row");
+                System.out.println(resultSet.getObject(1));
+                System.out.print(resultSet.getString(2));
+                System.out.println(resultSet.getDate(3));
+                System.out.println(resultSet.getObject(4));
+                System.out.println(resultSet.getString(5));
+                System.out.println(resultSet.getObject(6));
+                System.out.println("\n");
+            }
+        }
+
+    }
+
+}

postgresqlJava/src/test/java/postgresqlJava/AppTest.java

+package postgresqlJava;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+{
+    /**
+     * Rigorous Test :-)
+     */
+    @Test
+    public void shouldAnswerWithTrue()
+    {
+        assertTrue( true );
+    }
+}