config.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: Config.java,v 1.2 2002/03/04 21:42:56 echtcherbina Exp $
 */

package net.jxta.impl.config;

import net.jxta.platform.*;
import net.jxta.document.*;
import net.jxta.endpoint.EndpointAddress;
import net.jxta.impl.endpoint.Address;

import java.util.Hashtable;
import java.util.Vector;
import java.util.Enumeration;
import java.io.Writer;
import java.io.InputStream;

// purely for the main() unit test
import java.io.FileWriter;
import java.io.File;
import java.io.FileInputStream;


/** Instances of Config class provides the interface for configuring a JXTA
    peer. Config provides:
     <li>an interface to write a configuration to XML (write())
     <li>an interface to read a configuration from XML (static read())
     <li>an interface to create default a configuration (static
         createDefaultConfig())
     <li>an interface to read configuration information
     <li>an interface to set configuration information
**/
public class Config {
    /** Hashtable of {service key (String), CodeDescriptor  } **/
    private Hashtable mServiceCodeDescriptors = new Hashtable();

    /** the descriptor of the initial class that is booted at startup **/
    private CodeDescriptor mInitialPlatform;

    /** the descriptor of the initial peergoup class that is booted at
        startup **/
    private CodeDescriptor mInitialApp;

    /** TCP Transport Configuration **/
    private TcpConfig mTcpConfig=null;

    /** Http Transport Configuration **/
    private HttpConfig mHttpConfig=null;

    /** Vector of EndpointAddress objects of rendezvous peers **/
    private Vector mRendezvousPeers = new Vector();

    /** Stores whether the peer is a router peer **/
    private boolean mIsRouter;

    /** Stores whether the peer is a rendezvous peer **/
    private boolean mIsRendezvous;

    /** Stores whether the peer should propagate messages **/
    private boolean mShouldPropagate;
    
    // Service keys for mServiceImpls and mServiceCodebases
    public static final String SERVICE_DISCOVERY = "DiscoveryService";
    public static final String SERVICE_MEMBERSHIP = "MembershipService";
    public static final String SERVICE_PIPE = "PipeService";
    public static final String SERVICE_PEERINFO = "PeerInfoService";
    public static final String SERVICE_RESOLVER = "ResolverService";

    /** Array of services.  This should be kept in sync with the list above--
    the config reader and writer use this array to streamline the
    reaading/writing process. **/
    private static final String[] SERVICE_KEYS = { SERVICE_DISCOVERY,
        SERVICE_MEMBERSHIP,
        SERVICE_PIPE,
        SERVICE_PEERINFO,
        SERVICE_RESOLVER};

    private static final String JXTA_CODEBASE =
        "http://www.jxta.org/download/jxta.jar";

    /** Creates a blank configuration.  Normally you will want to create a
	Config object by either reading a pre-existing XML document or
	by calling the static createDefaultConfig()
    **/
    public Config() {
    }

    
    /** Creates a default configuration instance.
    
    @throw RuntimeException A RuntimeException is thrown when there
    is a problem creating a default configuration object. This should
    never happen.
    **/
    public static Config createDefaultConfig() {
        try {
            Config conf = new Config();

            conf.setServiceImplDescriptor( SERVICE_DISCOVERY, 
                new CodeDescriptor( "net.jxta.impl.discovery.DiscoveryService",
                                    JXTA_CODEBASE ) );

            conf.setServiceImplDescriptor( SERVICE_PIPE, 
                new CodeDescriptor( "net.jxta.impl.pipe.PipeService",
                                    JXTA_CODEBASE ));

            conf.setServiceImplDescriptor( SERVICE_PEERINFO, 
                new CodeDescriptor( "net.jxta.impl.peer.PeerInfoService",
                                    JXTA_CODEBASE));

            conf.setServiceImplDescriptor( SERVICE_RESOLVER, 
                new CodeDescriptor( "net.jxta.impl.resolver.ResolverService",
                                    JXTA_CODEBASE));

            conf.setServiceImplDescriptor( SERVICE_MEMBERSHIP, 
                new CodeDescriptor( "net.jxta.impl.membership.NullMembershipService",
                                    JXTA_CODEBASE ) );

            conf.setRendezvous( false );

            // XXX: We should probably not do this in the code at all.
            // if we distribute JXTA with hardcoded rendezvous, they should
            // go into a jxtaconfig.xml that we distribute rather than
            // here.
            conf.addRendezvousPeer( new Address( "tcp://129.144.36.190:6001" ) );
            conf.addRendezvousPeer( new Address( "tcp://jxta.dioxine.net:6001" ) );
            conf.addRendezvousPeer( new Address( "http://jxta.dioxine.net:6002" ) );
            
            conf.setShouldPropagate( false );

            conf.setTcpConfig( TcpConfig.createDefaultConfig() );

            conf.setHttpConfig( HttpConfig.createDefaultConfig() );

            conf.setInitialPlatform( new CodeDescriptor(
                "net.jxta.impl.peergroup.StartNetPeerGroup", JXTA_CODEBASE ) );

            conf.setInitialApp( new CodeDescriptor (
                "net.jxta.impl.shell.bin.Shell.Shell", JXTA_CODEBASE ) );

            return conf;
        } catch ( ConfigurationException e ) {
            throw new RuntimeException( "Fatal error with default config" );
        }
    }

    /** Given a service key, returns the descriptor of the implementation class.
    See the set of SERVICE_ constants above. **/
    public CodeDescriptor getServiceImplDescriptor( String aServiceKey ) {
        return(CodeDescriptor) mServiceCodeDescriptors.get( aServiceKey );
    }

    /** Correlates a service with a code descriptor. **/
    public void setServiceImplDescriptor(
        String aServiceKey,
        CodeDescriptor aDescriptor ) throws ConfigurationException {

        try {
            mServiceCodeDescriptors.put( aServiceKey, aDescriptor );
        } catch ( NullPointerException e ) {
            throw new ConfigurationException( "Null service key provided", e );
        }
    }


    /** Tells whether the peer is a rendezvous peer **/
    public boolean isRendezvous() { 
        return mIsRendezvous;
    }

    /** Sets whether the peer is a rendezvous peer **/
    public void setRendezvous( boolean aIsRendezvous ) {
        mIsRendezvous = aIsRendezvous;
    }

    /** Tells whether the peer is a router peer **/
    public boolean isRouter() {
        return mIsRouter;

    }

    /** Sets whether the peer is a rendezvous peer **/
    public void setRouter( boolean aIsRouter ) {
        mIsRouter = aIsRouter;
    }


    /** Gets the contained TCP Transport configuration **/
    public TcpConfig getTcpConfig() {
        return mTcpConfig;
    }

    /** Sets the contained TCP Transport configuration **/
    public void setTcpConfig( TcpConfig aConfig ) {
        mTcpConfig = aConfig;
    }


    /** Gets the contained Http Transport configuration **/
    public HttpConfig getHttpConfig() {
        return mHttpConfig;
    }

    /** Sets the contained Http Transport configuration **/
    public void setHttpConfig( HttpConfig aConfig ) {
        mHttpConfig = aConfig;
    }


    /** Returns the descriptor of the initial class that is booted at
        startup **/
    public CodeDescriptor getInitialPlatform() {
        return mInitialPlatform;
    }

    /** Sets the classname of the initial class that is booted at startup **/
    public void setInitialPlatform( CodeDescriptor aInitialPlatform ) {
        mInitialPlatform = aInitialPlatform;
    }


    /** Returns the classname of the initial class that is booted at startup **/
    public CodeDescriptor getInitialApp() {
        return mInitialApp;
    }