com.cura.Terminal.Terminal.java Source code

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Here is the source code for com.cura.Terminal.Terminal.java

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/*
 Copyright 2010, 2011 Ahmad Balaa, Oday Maleh
    
 This file is part of Cura.
    
   Cura is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
Cura is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with Cura.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.cura.Terminal;

import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;

import org.apache.commons.io.IOUtils;

import android.util.Log;

import com.cura.User;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;

public class Terminal extends Thread {

    private JSch jsch;
    private Session session;
    private Channel channel;

    private String username;
    private String host;
    private String password;
    private int port;
    private StringWriter writer;
    private InputStream in;
    private String result = "";
    int i = 0;

    public Terminal(User user) throws JSchException {
        // TODO Auto-generated method stub
        writer = new StringWriter();
        jsch = new JSch();
        username = user.getUsername();
        host = user.getDomain();
        this.password = user.getPassword();
        port = user.getPort();

        session = jsch.getSession(username, host, port);
        session.setPassword(password);
        session.setConfig("StrictHostKeyChecking", "no");
        session.connect();
        Log.i("Terminal", "connected");
        channel = session.openChannel("exec");

    }

    public synchronized String ExecuteCommand(String command) {

        try {
            channel = session.openChannel("exec");
            ((ChannelExec) channel).setCommand(command);
            channel.connect();

            // get output from server
            in = channel.getInputStream();

            // convert output to string
            writer.getBuffer().setLength(0);
            IOUtils.copy(in, writer);
            result = writer.toString();

            System.gc();

        } catch (IOException i) {
            Log.d("terminal", i.toString());
        } catch (JSchException e) {
            // TODO Auto-generated catch block
            Log.d("terminal", e.toString());
        }
        return result;
    }

    public void close() {
        session.disconnect();
        channel.disconnect();
    }

    public boolean connected() {
        return true;
    }
}