tcpconfig.java

jxme的一些相关程序,主要是手机上程序开发以及手机和计算机通信的一些程序资料,程序编译需要Ant支持

/*
 * Copyright (c) 2001 Sun Microsystems, Inc.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *       Sun Microsystems, Inc. for Project JXTA."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact Project JXTA at http://www.jxta.org.
 *
 * 5. Products derived from this software may not be called "JXTA",
 *    nor may "JXTA" appear in their name, without prior written
 *    permission of Sun.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL SUN MICROSYSTEMS OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Project JXTA.  For more
 * information on Project JXTA, please see
 * <http://www.jxta.org/>.
 *
 * This license is based on the BSD license adopted by the Apache Foundation.
 *
 * $Id: TcpConfig.java,v 1.2 2002/03/04 21:42:56 echtcherbina Exp $
 */

package net.jxta.impl.config;

import net.jxta.document.*;
import java.util.Enumeration;
import net.jxta.endpoint.EndpointAddress;
import net.jxta.impl.endpoint.Address;
import java.io.IOException;

/**
 * Sub-configuration for TCP-specific settings. Instances of this class
 * are normally contained within a Config instance.
 *
**/
public class TcpConfig {

    /** The default TCP server port **/
    private static final int DEFAULT_PORT = 6001;

    /** The default multicast hostname **/
    private static final String MCAST_HOST = "224.0.1.85";

    /** The default multicast port **/
    private static final int MCAST_PORT = 1234;

    /** The default multicast datagram size **/
    private static final int MCAST_DGRAM_SIZE = 8192;

    private static final String DEFAULT_IMPL =
        "net.jxta.impl.endpoint.tcp.TcpTransport";

    /** Server listening address **/
    private EndpointAddress mServerAddress;

    /** multicast address for mcast discovery **/
    private EndpointAddress mMulticastAddress;

    /** multicast bufferlen for mcast discovery datagrams **/
    private int mMulticastBufferLen;

    /** tells whether to use the public address **/
    private boolean mUsePublicAddress;

    /** The address I want to expose publicly. **/
    private EndpointAddress mPublicAddress;

    /** The local address the interface must be bound to **/
    private EndpointAddress localAddress;

    /** Classname for the TCP transport implementation **/
    private String mImplClassname;

    // XML tag names
    private static final String KEY_SERVER = "Server";
    private static final String KEY_MCAST = "Multicast";
    private static final String KEY_MCAST_BUFF = "MulticastBufferLen";
    private static final String KEY_IMPL = "Impl";


    /** Writes the configuration to XML **/
    public void writeToXML( StructuredTextDocument doc ) {
        Element parent = doc.createElement( ConfigConstants.KEY_TCP_TRANSPORT );
        doc.appendChild( parent );

        ConfigUtil.writeAddress( doc, parent, mServerAddress, KEY_SERVER );

        ConfigUtil.writeAddress( doc, parent, mMulticastAddress, KEY_MCAST );

        Element e = doc.createElement( KEY_MCAST_BUFF, String.valueOf(
            mMulticastBufferLen ) );
        
        parent.appendChild( e );

        ConfigUtil.writeAddress( doc, parent, mPublicAddress, ConfigConstants.KEY_PUBLICADDR );


        e = doc.createElement(ConfigConstants.KEY_USE_PUBLICADDR,
                              String.valueOf( mUsePublicAddress ) );
        parent.appendChild( e );

        ConfigUtil.writeAddress( doc, parent, localAddress, ConfigConstants.KEY_LOCALADDR );

        e = doc.createElement( KEY_IMPL, mImplClassname );
        parent.appendChild( e );
    }

    /** Creates a TcpConfig with the default settings **/
    public static TcpConfig createDefaultConfig() {
        TcpConfig conf = new TcpConfig();
        conf.setServerAddress( new Address( "tcp://localhost:"+DEFAULT_PORT));
        conf.setMulticastAddress( new Address( "tcp://"+MCAST_HOST+":"+MCAST_PORT ));
        conf.setMulticastBufferLen( MCAST_DGRAM_SIZE );
        conf.setLocalAddress( null );
        conf.setPublicAddress( null );
        conf.setUsePublicAddress( false );
        conf.setImplClassname( DEFAULT_IMPL );
        return conf;
    }
    
    /** Creates a new HttpConfig instance given a parent "Http" element **/
    public static TcpConfig newFromXML( TextElement parent ) {
        Enumeration enum = parent.getChildren();
        if ( enum == null ) return null;
        TcpConfig conf = new TcpConfig();
        while ( enum.hasMoreElements() ) {
            TextElement e = (TextElement) enum.nextElement();
            String elname = e.getName();

            if ( elname.equals( KEY_IMPL ) )
                conf.mImplClassname = e.getTextValue();
            if ( elname.equals( KEY_MCAST_BUFF ) )
                conf.mMulticastBufferLen = Integer.valueOf( e.getTextValue() ).intValue();
            else if ( elname.equals( KEY_SERVER ) )
                conf.mServerAddress = new Address( e.getTextValue() );
            else if ( elname.equals( KEY_MCAST ) )
                conf.mMulticastAddress = new Address( e.getTextValue() );
            else if ( elname.equals( ConfigConstants.KEY_PUBLICADDR ) )
                conf.mPublicAddress = new Address( e.getTextValue() );
            else if ( elname.equals( ConfigConstants.KEY_USE_PUBLICADDR ) )
                conf.mUsePublicAddress = Boolean.valueOf( e.getTextValue() ).booleanValue();
            else if ( elname.equals( ConfigConstants.KEY_LOCALADDR ) )
                conf.localAddress = new Address ( e.getTextValue() );
        }
        return conf;
    }
    
    
    /** Gets the EndpointAddress for the local TCP server **/
    public EndpointAddress getServerAddress() { 
        return mServerAddress;
    }

    /** Sets the EndpointAddress for the local TCP server **/
    public void setServerAddress( EndpointAddress aAddress ) {
        mServerAddress = aAddress;
    }

    /** Gets the EndpointAddress for the multicast channel **/
    public EndpointAddress getMulticastAddress() {
        return mMulticastAddress;
    }

    /** Sets the EndpointAddress for the multicast channel **/
    public void setMulticastAddress( EndpointAddress aMulticastAddress ) {
        mMulticastAddress = aMulticastAddress;
    }
    
    /** Gets the buffer length for multicast datagrams **/
    public int getMulticastBufferLen() {
        return mMulticastBufferLen;
    }
    
    /** Sets the buffer length for multicast datagrams **/
    public void setMulticastBufferLen( int aBufferLen ) {
        mMulticastBufferLen = aBufferLen;
    }

    /** Gets the EndpointAddress for the local address.
        May be null. **/
    public EndpointAddress getLocalAddress() {
        return localAddress;
    }

    /** Sets the EndpointAddress for the local IP address I want to expose. **/
    public void setLocalAddress( EndpointAddress aLocalAddress ) {
        localAddress = aLocalAddress;
    }

    /** Gets the EndpointAddress for the public TCP address I want to expose.
        May be null, unless getUsePublicAddres()==true. **/
    public EndpointAddress getPublicAddress() {
        return mPublicAddress;
    }

    /** Sets the EndpointAddress for the public TCP address I want to expose. This
        must be set if getUsePublicAddres()==true **/
    public void setPublicAddress( EndpointAddress aPublicAddress ) {
        mPublicAddress = aPublicAddress;
    }

    /** Tells whether to use the PublicAddress settings. **/
    public boolean getUsePublicAddress() {
        return mUsePublicAddress;
    }

    /** Sets whether to use the PublicAddress settings. **/
    public void setUsePublicAddress( boolean aUsePublicAddress ) {
        mUsePublicAddress = aUsePublicAddress;
    }

    /** Sets the classname for the Tcp transport implementation class **/
    public String getImplClassname() {
        return mImplClassname;
    }

    /** Sets the classname for the Tcp transport implementation class **/
    public void setImplClassname( String aImplClassname ) {
        mImplClassname = aImplClassname;
    }
}