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PlantUML is a component that allows to quickly write diagrams from text.

There is a newer version: 1.2024.8

// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
package net.sourceforge.plantuml.ftp;

// server

// FtpServer.java
import static java.nio.charset.StandardCharsets.UTF_8;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Map;
import java.util.Objects;
import java.util.TreeMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import net.sourceforge.plantuml.FileFormat;
import net.sourceforge.plantuml.log.Logme;

public class FtpServer {

	private final Map datas = new TreeMap();
	private final ExecutorService exeImage = Executors.newFixedThreadPool(2);

	private final int listenPort;

	private int portFree = 10042;
	private String ip;
	private final FileFormat defaultfileFormat;

	public FtpServer(int listenPort, FileFormat defaultfileFormat) {
		this.listenPort = listenPort;
		this.defaultfileFormat = defaultfileFormat == null ? FileFormat.PNG : defaultfileFormat;
	}

	public synchronized int getFreePort() {
		portFree++;
		// Log.println("port=" + portFree);
		return portFree;
	}

	public void go() throws IOException {
		final ServerSocket s = new ServerSocket(listenPort);
		final ExecutorService exe = Executors.newCachedThreadPool();
		while (true) {
			final Socket incoming = s.accept();
			ip = incoming.getLocalAddress().getHostAddress();
			System.out.println("New Client Connected from " + incoming.getInetAddress().getHostName() + "... ");
			exe.submit(new FtpLoop(incoming, this));
		}
	}

	public String getIpServer() {
		return ip;
	}

	public synchronized FtpConnexion getFtpConnexion(String user) {
		FtpConnexion data = datas.get(Objects.requireNonNull(user));
		if (data == null) {
			data = new FtpConnexion(user, defaultfileFormat);
			datas.put(user, data);
		}
		return data;
	}

	public static void main(String[] args) throws IOException {
		System.out.println("****************************** ************************************************** ");
		System.out.println("****************************** FTP SERVER***********************************");

		System.out.println("****************************** ************************************************** ");
		System.out.println("Server Started...");
		System.out.println("Waiting for connections...");
		System.out.println(" ");
		new FtpServer(4242, FileFormat.PNG).go();
	}

	public void processImage(final FtpConnexion connexion, final String name) {
		exeImage.submit(new Runnable() {
			public void run() {
				try {
					connexion.processImage(name);
				} catch (IOException e) {
					Logme.error(e);
				}
			}
		});
	}

	public final String getCharset() {
		return UTF_8.name();
	}

}