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package javaapplication3;

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 *
 * @author Martin
 */
public class FTPManager {

    private String server;
    private int port;
    private String user;
    private String pass;

    private FTPClient ftpClient;

    public FTPManager(String server, int port, String user, String password) {
        this.server = server;
        this.port = port;
        this.user = user;
        this.pass = password;
        this.ftpClient = new FTPClient();
    }

    public boolean connect() {
        try {
         ftpClient.connect(server, port);
         ftpClient.login(user, pass);
         ftpClient.enterLocalPassiveMode();

         ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
         return true;
       } catch (IOException ex) {
            System.out.println("Error: " + ex.getMessage());
            ex.printStackTrace();
            return false;
       }
    }

    public boolean disconnect() {
        try {
                if (ftpClient.isConnected()) {
                    ftpClient.logout();
                    ftpClient.disconnect();
                    return true;
                }
                return false;
            } catch (IOException ex) {
                ex.printStackTrace();
                return false;
            }
    }

    public boolean transferFile(File file, String filePath) {
        boolean done = false;
        try {
            // APPROACH #1: uploads first file using an InputStream
            File firstLocalFile = file;

            String firstRemoteFile = filePath;
            InputStream inputStream = new FileInputStream(firstLocalFile);

            System.out.println("Start uploading first file");

            done = ftpClient.storeFile(firstRemoteFile, inputStream);

            inputStream.close();
            if (done) {
                System.out.println("The first file is uploaded successfully.");
            }
        } catch (IOException ex) {
            System.out.println("Error: " + ex.getMessage());
            ex.printStackTrace();
        }
        return done;
    }


}