working FTP

SymphonyManager/pom.xml

@@ -49,6 +49,11 @@
             <artifactId>logback-classic</artifactId>
             <version>1.4.12</version>
         </dependency>
+        <dependency>
+            <groupId>commons-net</groupId>
+            <artifactId>commons-net</artifactId>
+            <version>3.11.1</version>
+        </dependency>
 
         <dependency>
             <groupId>ch.qos.logback</groupId>

SymphonyManager/src/main/java/io/github/lumijiez/FTPFetcher.java

@@ -0,0 +1,80 @@
+package io.github.lumijiez;
+
+import org.apache.commons.net.ftp.FTPClient;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Timer;
+import java.util.TimerTask;
+
+public class FTPFetcher {
+    String ftpServer = "ftp_server";
+    int ftpPort = 21;
+    String ftpUser = "symphony";
+    String ftpPass = "symphony";
+    String ftpDir = "/uploads";
+
+    public FTPFetcher() {
+        Timer timer = new Timer();
+        timer.scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                fetchAndDeleteFilesFromFtp(ftpServer, ftpPort, ftpUser, ftpPass, ftpDir);
+            }
+        }, 0, 5000);
+    }
+
+    public static void fetchAndDeleteFilesFromFtp(String ftpServer, int ftpPort, String ftpUser, String ftpPass, String ftpDir) {
+        FTPClient ftpClient = new FTPClient();
+
+        try {
+            ftpClient.connect(ftpServer, ftpPort);
+            ftpClient.setControlKeepAliveTimeout(300);
+            boolean login = ftpClient.login(ftpUser, ftpPass);
+            if (!login) {
+                System.out.println("FTP login failed.");
+                return;
+            }
+
+            ftpClient.enterLocalPassiveMode();
+            ftpClient.changeWorkingDirectory(ftpDir);
+
+            String[] fileNames = ftpClient.listNames();
+            if (fileNames == null || fileNames.length == 0) {
+                System.out.println("No files found in the directory.");
+                return;
+            }
+
+            for (String fileName : fileNames) {
+                File localFile = new File("downloaded_" + fileName);
+                try (FileOutputStream fos = new FileOutputStream(localFile)) {
+                    boolean success = ftpClient.retrieveFile(fileName, fos);
+                    if (success) {
+                        System.out.println("File downloaded: " + localFile.getName());
+                    } else {
+                        System.out.println("Failed to download the file: " + fileName);
+                    }
+                }
+
+                boolean deleted = ftpClient.deleteFile(fileName);
+                if (deleted) {
+                    System.out.println("File deleted from FTP server: " + fileName);
+                } else {
+                    System.out.println("Failed to delete the file from FTP server: " + fileName);
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (ftpClient.isConnected()) {
+                    ftpClient.logout();
+                    ftpClient.disconnect();
+                }
+            } catch (IOException ex) {
+                ex.printStackTrace();
+            }
+        }
+    }
+}

SymphonyManager/src/main/java/io/github/lumijiez/Main.java

@@ -12,6 +12,8 @@ public class Main {
     public static void main(String[] args) {
         new Thread(BrokerConnector::connect, "RabbitMQ-Connection").start();
 
+        new Thread(FTPFetcher::new, "FTP-Fetcher").start();
+
         Javalin app = Javalin.create(config -> {
             config.jsonMapper(new JavalinGson());
             config.jetty.modifyWebSocketServletFactory(wsFactoryConfig -> {