/*
* 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: whoami.java,v 1.26 2007/02/09 23:12:49 hamada Exp $
*/
package net.jxta.impl.shell.bin.whoami;
import java.util.Enumeration;
import java.util.List;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import net.jxta.document.AdvertisementFactory;
import net.jxta.document.XMLElement;
import net.jxta.endpoint.EndpointAddress;
import net.jxta.peergroup.PeerGroup;
import net.jxta.protocol.PeerAdvertisement;
import net.jxta.protocol.PeerGroupAdvertisement;
import net.jxta.protocol.RouteAdvertisement;
import net.jxta.impl.shell.GetOpt;
import net.jxta.impl.shell.ShellApp;
import net.jxta.impl.shell.ShellEnv;
import net.jxta.impl.shell.ShellObject;
/**
* whoami command list the local peer information
*/
public class whoami extends ShellApp {
public whoami() {
}
public int startApp(String[] args) {
ShellEnv myEnv = getEnv();
boolean full = false;
boolean viewpg = false;
ShellObject<PeerGroup> obj;
PeerGroup pg;
GetOpt getopt = new GetOpt(args, "gl");
int c;
try {
while ((c = getopt.getNextOption()) != -1) {
switch (c) {
case'g':
viewpg = true;
break;
case'l':
full = true;
break;
default:
consoleMessage("Illegal option");
syntaxError();
return ShellApp.appParamError;
}
}
obj = (ShellObject<PeerGroup>) myEnv.get("stdgroup");
// extract the advertisement
pg = obj.getObject();
if (viewpg) {
PeerGroupAdvertisement pgAdv = pg.getPeerGroupAdvertisement();
println( "PeerGroup : " + pg );
if (full) {
String groupDoc = pgAdv.toString().trim();
print("Peer GroupAdvertisement : \n\t" + groupDoc.replace("\n", "\n\t") );
} else {
println( "PeerGroup ID : " + pgAdv.getPeerGroupID() );
println( "PeerGroup MSID : " + pgAdv.getModuleSpecID() );
println( "PeerGroup Name : " + pgAdv.getName() );
XMLElement desc = (XMLElement) pgAdv.getDesc();
print( "PeerGroup Description : \n\t" + ((null == desc) ? "** NONE **\n" : desc.toString().trim().replace("\n", "\n\t")) );
}
println( "PeerGroup parent group : " + pg.getParentGroup() );
println( "PeerGroup store home : " + pg.getStoreHome() );
println( "PeerGroup thread group : " + pg.getHomeThreadGroup().getName() );
} else {
PeerAdvertisement peerAdv = pg.getPeerAdvertisement();
Collection<EndpointAddress> endps = getEndpointAddresses(peerAdv);
println( "Peer ID : " + peerAdv.getPeerID() );
if (full) {
String peerDoc = peerAdv.toString().trim();
print("Peer Advertisement : \n\t" + peerDoc.replace("\n", "\n\t") );
} else {
println( "PeerGroup ID : " + peerAdv.getPeerGroupID() );
println( "Peer Name : " + peerAdv.getName() );
XMLElement desc = (XMLElement) peerAdv.getDesc();
print( "Peer Description : \n\t" + ((null == desc) ? "** NONE **\n" : desc.toString().trim().replace("\n", "\n\t")) );
println( "Peer Endpoint Addresses : ");
if( endps.isEmpty() ) {
println("** NONE **");
} else {
for (EndpointAddress endp : endps) {
println("\t" + endp);
}
}
}
}
return ShellApp.appNoError;
} catch (Throwable ex) {
printStackTrace("Exception in command.", ex);
return ShellApp.appMiscError;
}
}
private Collection<EndpointAddress> getEndpointAddresses(PeerAdvertisement peerAdv) {
// Get its EndpointService advertisement
XMLElement endpParam = (XMLElement) peerAdv.getServiceParam(PeerGroup.endpointClassID);
if (endpParam == null) {
return Collections.emptyList();
}
RouteAdvertisement route;
try {
Enumeration<XMLElement> paramChilds = endpParam.getChildren(RouteAdvertisement.getAdvertisementType());
XMLElement param = null;
if (paramChilds.hasMoreElements()) {
param = paramChilds.nextElement();
}
route = (RouteAdvertisement) AdvertisementFactory.newAdvertisement(param);
} catch (Exception ex) {
return Collections.emptyList();
}
if (route == null) {
return Collections.emptyList();
}
List<EndpointAddress> addrs = new ArrayList<EndpointAddress>();
for (Enumeration<String> e = route.getDest().getEndpointAddresses(); e.hasMoreElements();) {
addrs.add(new EndpointAddress(e.nextElement()));
}
return addrs;
}
public int syntaxError() {
consoleMessage("whoami [-g] [-l]");
return ShellApp.appParamError;
}
@Override
public String getDescription() {
return "Display information about this peer or the current peergroup";
}
@Override
public void help() {
println("NAME");
println(" whoami - " + getDescription());
println(" ");
println("SYNOPSIS");
println(" whoami [-l] [-g]");
println(" ");
println("DESCRIPTION");
println(" ");
println("whoami displays information about a peer or a");
println("peergroup. With no option, whoami returns");
println("information about the local peer. The '-g' option returns");
println("information about the current peer group joined.");
println("");
println("By default the Shell is brought up in the 'NetPeerGroup' group. ");
println("Only the peerId and the peerGroup ID are guaranteed");
println("to be unique.");
println("");
println("OPTIONS");
println("");
println(" [-g] Return info about the current peergroup");
println(" [-l] Print the complete advertisement");
println(" ");
println("EXAMPLE");
println(" ");
println(" JXTA>whoami -l");
println(" ");
println("This example displays a long version of the peer information");
println(" ");
println("SEE ALSO");
println(" peers");
}
}