/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * Copyright 2000-2009 Sun Microsystems, Inc. All rights reserved. 
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License ("CDDL") (collectively, the "License").  You may
 * not use this file except in compliance with the License.  You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or mq/legal/LICENSE.txt.  See the License for the specific language
 * governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at mq/legal/LICENSE.txt.  Sun designates
 * this particular file as subject to the "Classpath" exception as provided by
 * Sun in the GPL Version 2 section of the License file that accompanied this
 * code.  If applicable, add the following below the License Header, with the
 * fields enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
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 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
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 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright holder. 
 */

/*
 * @(#)HttpTunnelSocket.java	1.5 06/28/07
 */ 

package com.sun.messaging.jmq.transport.httptunnel;

import java.io.*;
import java.net.InetAddress;
import java.net.UnknownHostException;
import com.sun.messaging.jmq.transport.httptunnel.client.*;
import java.util.Hashtable;

/**
 * This class implements socket-like interface for the HTTP tunnel
 * connections.
 */
public class HttpTunnelSocket {
    private HttpTunnelConnection conn = null;

    private InputStream is = null;
    private OutputStream os = null;
    private boolean sockClosed = false;

    /**
     * Creates a socket and establishes a connection with the specified
     * server address.
     */
    public HttpTunnelSocket(String serverAddr) throws IOException {
        HttpTunnelClientDriver wire = new HttpTunnelClientDriver(serverAddr);
        conn = wire.doConnect();
        initSocket();
    }

    /**
     * Creates a socket with a given HTTP tunnel connection. Used
     * internally by the server socket (accept) implementation.
     */
    protected HttpTunnelSocket(HttpTunnelConnection conn) {
        this.conn = conn;
        initSocket();
    }

    protected void initSocket() {
        is = null; // Will be created on demand
        os = null; // Will be created on demand
        sockClosed = false;
    }

    /**
     * Returns an input stream for this socket.
     */
    public synchronized InputStream getInputStream() throws IOException {
        if (sockClosed) {
            throw new IOException("Socket closed");
        }
        if (is == null)
            is = new HttpTunnelInputStream(conn);
        return is;
    }

    /**
     * Returns an output stream for this socket.
     */
    public synchronized OutputStream getOutputStream() throws IOException {
        if (sockClosed) {
            throw new IOException("Socket closed");
        }
        if (os == null)
            os = new HttpTunnelOutputStream(conn);
        return os;
    }

    /**
     * Close this socket.
     */
    public synchronized void close() throws IOException {
        if (is != null)
            is.close();
        if (os != null)
            os.close();
        sockClosed = true;
        conn.closeConn();
    }

    /**
     * Get the unique connection ID.
     */
    public int getConnId() {
        return conn.getConnId();
    }

    public InetAddress getRemoteAddress() 
        throws UnknownHostException, SecurityException { 

        HttpTunnelConnection c = conn;
        if (c == null || c.getRemoteAddr() == null) return null;
        return InetAddress.getByName(c.getRemoteAddr());
    }

    public int getPullPeriod() {
        return conn.getPullPeriod();
    }

    public void setPullPeriod(int pullPeriod) throws IOException {
        conn.setPullPeriod(pullPeriod);
    }

    public int getConnectionTimeout() {
        return conn.getConnectionTimeout();
    }

    public void setConnectionTimeout(int connectionTimeout)
        throws IOException {
        conn.setConnectionTimeout(connectionTimeout);
    }

    public Hashtable getDebugState() {
        return conn.getDebugState();
    }
}

/*
 * EOF
 */
