/*
* 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: who.java,v 1.13 2007/02/09 23:12:52 hamada Exp $
*/
package net.jxta.impl.shell.bin.who;
import net.jxta.credential.Credential;
import net.jxta.document.MimeMediaType;
import net.jxta.document.StructuredTextDocument;
import net.jxta.impl.shell.GetOpt;
import net.jxta.impl.shell.ShellApp;
import net.jxta.impl.shell.ShellEnv;
import net.jxta.impl.shell.ShellObject;
import net.jxta.membership.MembershipService;
import net.jxta.peergroup.PeerGroup;
import java.util.Enumeration;
/**
* Display credential information
*/
public class who extends ShellApp {
/**
* {@inheritDoc}
*/
public int startApp(String[] argv) {
ShellEnv myEnv = getEnv();
boolean pretty = false;
GetOpt options = new GetOpt(argv, 0, "p");
while (true) {
int option;
try {
option = options.getNextOption();
} catch (IllegalArgumentException badopt) {
consoleMessage("Illegal argument :" + badopt);
return syntaxError();
}
if (-1 == option) {
break;
}
switch (option) {
case'p':
pretty = true;
break;
default:
consoleMessage("Unrecognized option");
return syntaxError();
}
}
if (null != options.getNextParameter()) {
consoleMessage("Unsupported parameter");
return syntaxError();
}
MimeMediaType displayAs;
if (pretty)
displayAs = MimeMediaType.TEXT_DEFAULTENCODING;
else
displayAs = MimeMediaType.XMLUTF8;
try {
// extract the membership service
ShellObject obj = myEnv.get("stdgroup");
PeerGroup group = (PeerGroup) obj.getObject();
MembershipService membership = group.getMembershipService();
Enumeration eachCred = membership.getCurrentCredentials();
clearEnvironment();
int count = 1;
while (eachCred.hasMoreElements()) {
Credential aCred = (Credential) eachCred.nextElement();
String envName;
String objName;
if (aCred == membership.getDefaultCredential()) {
envName = "cred0";
objName = "Default Credential";
} else {
envName = "cred" + Integer.toString(count++);
objName = "Credential";
}
myEnv.add(envName, new ShellObject<Credential>(objName, aCred));
StructuredTextDocument doc = (StructuredTextDocument) aCred.getDocument(displayAs);
print(doc.toString());
}
} catch (Exception e) {
printStackTrace("Failed due to exception", e);
return ShellApp.appMiscError;
}
return ShellApp.appNoError;
}
private void clearEnvironment() {
ShellEnv myEnv = getEnv();
Enumeration eachEnv = myEnv.elements();
while (eachEnv.hasMoreElements()) {
try {
String anEnv = (String) eachEnv.nextElement();
if (anEnv.startsWith("cred") && (0 != Integer.parseInt(anEnv.substring(4)))) {
myEnv.remove(anEnv);
}
} catch (Exception ignore) {
}
}
}
public int syntaxError() {
consoleMessage("who [-p]");
return ShellApp.appParamError;
}
/**
* {@inheritDoc}
*/
@Override
public String getDescription() {
return "Display credential information";
}
/**
* {@inheritDoc}
*/
@Override
public void help() {
println("NAME");
println(" who - " + getDescription());
println(" ");
println("SYNOPSIS");
println(" who [-p]");
println(" ");
println("DESCRIPTION");
println(" ");
println("'who' displays the set of credentials associated with this");
println("peer for the current peer group.");
println("");
println("OPTIONS");
println(" ");
println(" [-p] pretty print credential information");
println(" ");
println("EXAMPLE");
println(" ");
println(" JXTA>who -p");
println(" ");
println("This example displays pretty printed credentials ");
println(" ");
println("SEE ALSO");
println(" join, leave, set, info");
}
}