org.eclipse.datatools.connectivity.sample.ftp.internal.FtpConnection.java Source code

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Here is the source code for org.eclipse.datatools.connectivity.sample.ftp.internal.FtpConnection.java

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/*******************************************************************************
 * Copyright (c) 2008 Sybase, Inc.
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License v1.0 which
 * accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: brianf & mdow - initial API and implementation
 ******************************************************************************/
package org.eclipse.datatools.connectivity.sample.ftp.internal;

import java.io.IOException;
import java.util.Properties;

import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;

import org.eclipse.datatools.connectivity.IConnection;
import org.eclipse.datatools.connectivity.IConnectionProfile;
import org.eclipse.datatools.connectivity.IServerVersionProvider;
import org.eclipse.datatools.connectivity.Version;
import org.eclipse.datatools.connectivity.sample.ftp.FTPProfileMessages;
import org.eclipse.datatools.connectivity.sample.ftp.IFtpProfileConstants;

/**
 * @author mdow
 */
public class FtpConnection implements IConnection, IServerVersionProvider {

    private static int counter = 0;

    private Throwable mException;

    private FTPClient mFtpClient;

    private FTPClientObject mFtpClientObject;

    private IConnectionProfile mProfile;

    /**
     * Constructor
     * @param profile
     */
    public FtpConnection(IConnectionProfile profile) {
        this.mProfile = profile;
        Properties props = profile.getBaseProperties();

        String server = props.getProperty(IFtpProfileConstants.FTP_SERVER);
        String port = props.getProperty(IFtpProfileConstants.FTP_PORT);
        String user = props.getProperty(IFtpProfileConstants.FTP_UID);
        String pass = props.getProperty(IFtpProfileConstants.FTP_PWD);

        try {
            int reply;
            this.mFtpClient = new FTPClient();
            this.mFtpClientObject = new FTPClientObject(profile, this.mFtpClient);
            if (port != null && port.length() != 0)
                this.mFtpClient.setDefaultPort(new Integer(port).intValue());
            this.mFtpClient.setDefaultTimeout(2 * 60 * 1000);
            this.mFtpClient.setDataTimeout(2 * 60 * 1000);
            this.mFtpClient.connect(server);
            if (!this.mFtpClient.login(user, pass)) {
                throw new Exception(mFtpClient.getReplyString());
            }
            reply = this.mFtpClient.getReplyCode();
            if (!FTPReply.isPositiveCompletion(reply)) {
                this.mFtpClient.disconnect();
                throw new Exception(FTPProfileMessages.getString("FtpConnection.errormessage")); //$NON-NLS-1$
            }
        } catch (Exception e) {
            this.mException = e;
            return;
        }
        this.mFtpClient.enterLocalPassiveMode();
        FtpConnection.counter++;
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IConnection#getRawConnection()
     */
    public Object getRawConnection() {
        return this.mFtpClientObject;
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IConnection#close()
     */
    public void close() {
        if (this.mFtpClient != null) {
            if (this.mFtpClient.isConnected()) {
                try {
                    this.mFtpClient.disconnect();
                    FtpConnection.counter--;
                } catch (IOException e) {
                    // Guess we can't disconnect.
                    e.printStackTrace();
                }
            }
            this.mFtpClient = null;
        }
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IConnection#getConnectException()
     */
    public Throwable getConnectException() {
        return this.mException;
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IConnection#getConnectionProfile()
     */
    public IConnectionProfile getConnectionProfile() {
        return this.mProfile;
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IServerVersionProvider#getProviderName()
     */
    public String getProviderName() {
        try {
            if (mFtpClient != null && mFtpClient.isConnected())
                return mFtpClient.getSystemName();
        } catch (IOException e) {
            // do nothing
        }
        return "Not Available";
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IServerVersionProvider#getProviderVersion()
     */
    public Version getProviderVersion() {
        return new Version(0, 0, 0, "0");
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IServerVersionProvider#getTechnologyName()
     */
    public String getTechnologyName() {
        return "FTP";
    }

    /* (non-Javadoc)
     * @see org.eclipse.datatools.connectivity.IServerVersionProvider#getTechnologyVersion()
     */
    public Version getTechnologyVersion() {
        return new Version(0, 0, 0, "0");
    }
}