/*
* Copyright (c) 2001-2007 Sun Microsystems, Inc. All rights reserved.
*
* The Sun Project JXTA(TM) Software License
*
* 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 Sun Microsystems, Inc. for JXTA(TM) technology."
* 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.
*
* JXTA is a registered trademark of Sun Microsystems, Inc. in the United
* States and other countries.
*
* Please see the license information page at :
* <http://www.jxta.org/project/www/license.html> for instructions on use of
* the license in source files.
*
* ====================================================================
*
* 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.
*/
package net.jxta.impl.peergroup;
import net.jxta.document.Advertisement;
import net.jxta.document.MimeMediaType;
import net.jxta.document.XMLElement;
import net.jxta.exception.PeerGroupException;
import net.jxta.id.ID;
import net.jxta.impl.content.ContentServiceImpl;
import net.jxta.impl.endpoint.cbjx.CbJxDefs;
import net.jxta.impl.membership.pse.PSEMembershipService;
import net.jxta.peergroup.PeerGroup;
import net.jxta.platform.Application;
import net.jxta.platform.Module;
import net.jxta.protocol.ModuleImplAdvertisement;
/**
* ShadowPeerGroup is almost a regular StdPeerGroup, except that it borrows its
* parent's configuration. The only real use is for the Net Peer Group.
*/
public class ShadowPeerGroup extends StdPeerGroup {
/**
* Our application is the JXSE Shell.
*/
private Application shell = null;
/**
* Create and populate the default module impl Advertisement for this class.
*
* @return The default module impl advertisement for this class.
*/
public static ModuleImplAdvertisement getDefaultModuleImplAdvertisement() {
ModuleImplAdvertisement implAdv = CompatibilityUtils.createModuleImplAdvertisement(
PeerGroup.refNetPeerGroupSpecID, ShadowPeerGroup.class.getName(),
"Default Network PeerGroup reference implementation");
// Build the param section now.
StdPeerGroupParamAdv paramAdv = new StdPeerGroupParamAdv();
// Set the services
// "Core" Services
paramAdv.addService(PeerGroup.endpointClassID, PeerGroup.refEndpointSpecID);
paramAdv.addService(PeerGroup.resolverClassID, PeerGroup.refResolverSpecID);
paramAdv.addService(PeerGroup.membershipClassID, PSEMembershipService.pseMembershipSpecID);
paramAdv.addService(PeerGroup.accessClassID, PeerGroup.refAccessSpecID);
// "Standard" Services
paramAdv.addService(PeerGroup.discoveryClassID, PeerGroup.refDiscoverySpecID);
paramAdv.addService(PeerGroup.rendezvousClassID, PeerGroup.refRendezvousSpecID);
paramAdv.addService(PeerGroup.pipeClassID, PeerGroup.refPipeSpecID);
paramAdv.addService(PeerGroup.peerinfoClassID, PeerGroup.refPeerinfoSpecID);
paramAdv.addService(PeerGroup.proxyClassID, PeerGroup.refProxySpecID);
paramAdv.addService(PeerGroup.contentClassID, ContentServiceImpl.MODULE_SPEC_ID);
// High-level Message Transports.
paramAdv.addProto(PeerGroup.routerProtoClassID, PeerGroup.refRouterProtoSpecID);
paramAdv.addProto(PeerGroup.tlsProtoClassID, PeerGroup.refTlsProtoSpecID);
paramAdv.addProto(CbJxDefs.msgtptClassID, CbJxDefs.cbjxMsgTransportSpecID);
paramAdv.addProto(PeerGroup.relayProtoClassID, PeerGroup.refRelayProtoSpecID);
// Pour our newParamAdv in implAdv
XMLElement paramElement = (XMLElement) paramAdv.getDocument(MimeMediaType.XMLUTF8);
implAdv.setParam(paramElement);
return implAdv;
}
/**
* {@inheritDoc}
*
* <p/>This implementation initializes the configuration advertisement with
* that of the parent group and otherwise behave exactly like its superclass.
*/
@Override
protected void initFirst(PeerGroup parent, ID assignedID, Advertisement impl) throws PeerGroupException {
// Set the peer configuration before we start.
setConfigAdvertisement(parent.getConfigAdvertisement());
// Do the regular stuff now.
super.initFirst(parent, assignedID, impl);
}
/**
* {@inheritDoc}
*/
@Override
protected void initLast() throws PeerGroupException {
// Nothing special, but that could change in the future
// Just remember that the possibility exists.
super.initLast();
}
/**
* {@inheritDoc}
* <p/>
* If it is available, start the shell.
*/
@Override
public int startApp(String[] args) {
int result = super.startApp(args);
if (Module.START_OK != result) {
return result;
}
// Main app is the shell (if it is available).
if (null != getLoader().findModuleImplAdvertisement(PeerGroup.refShellSpecID)) {
shell = (Application) loadModule(PeerGroup.applicationClassID, PeerGroup.refShellSpecID, PeerGroup.Both);
if (null == shell) {
return -1;
}
result = shell.startApp(new String[0]);
}
return result;
}
/**
* {@inheritDoc}
* <p/>If we started the shell we now must stop it.
*/
@Override
public void stopApp() {
if (null != shell) {
shell.stopApp();
shell = null;
}
super.stopApp();
}
}