/*
* Copyright (c) 2002 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: EndpointRemoteShellConsole.java,v 1.11 2007/02/09 23:12:42 hamada Exp $
*/
package net.jxta.impl.shell.bin.rshd;
import net.jxta.endpoint.*;
import net.jxta.impl.shell.ShellApp;
import net.jxta.impl.shell.ShellConsole;
import net.jxta.peergroup.PeerGroup;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.util.ArrayList;
import java.util.List;
public class EndpointRemoteShellConsole extends ShellConsole implements EndpointListener {
private final static String CursorUp = Byte.toString((byte) 16);
private final static String CursorDown = Byte.toString((byte) 14);
private RemoteShellSession session = null;
private final String myAddress;
private EndpointService endpoint = null;
private String prompt = null;
private Messenger messenger = null;
private final List<String> in = new ArrayList<String>();
public EndpointRemoteShellConsole(ShellApp rootApp, RemoteShellSession session, String myAddress, String remoteAddress, EndpointService endpoint) throws IOException {
super(rootApp, remoteAddress);
this.session = session;
this.myAddress = myAddress;
this.endpoint = endpoint;
try {
endpoint.addIncomingMessageListener(this, rshd.NAME, myAddress);
} catch (Exception ez1) {
throw new IOException("Could not register listener");
}
EndpointAddress addr = new EndpointAddress(remoteAddress);
this.messenger = endpoint.getMessenger(addr);
if (this.messenger == null) {
throw new IOException("No messenger for " + addr);
}
Message msg = new Message();
msg.addMessageElement(null,
new StringMessageElement(rshd.SESSION_GRANTED, rshd.NAME + "/" + myAddress, null));
this.messenger.sendMessage(msg);
}
/**
* {@inheritDoc}
*/
public synchronized void processIncomingMessage(Message msg, EndpointAddress srcAddr, EndpointAddress dstAddr) {
MessageElement el = msg.getMessageElement(null, rshd.DATA);
if (el != null) {
synchronized (in) {
in.add(el.toString());
in.notify();
}
session.updateActivity();
}
}
/**
* {@inheritDoc}
*/
@Override
protected void finalize() throws Throwable {
destroy();
super.finalize();
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void destroy() {
endpoint.removeIncomingMessageListener(rshd.NAME, myAddress);
if (this.messenger != null) {
this.messenger.close();
this.messenger = null;
}
}
/**
* {@inheritDoc}
*/
@Override
public String read() throws InterruptedIOException {
synchronized (in) {
while (in.isEmpty()) {
if (null != prompt) {
try {
messenger.waitState(Messenger.IDLE, 100);
} catch (InterruptedException woken) {
Thread.interrupted();
}
write(prompt);
prompt = null;
}
try {
in.wait(0);
} catch (InterruptedException ez1) {
InterruptedIOException woken = new InterruptedIOException("Interrupted during read");
woken.initCause(ez1);
throw woken;
}
}
return in.remove(0);
}
}
/**
* {@inheritDoc}
*/
@Override
public void write(String data) {
try {
Message msg = new Message();
msg.addMessageElement(null, new StringMessageElement(rshd.DATA, data, null));
messenger.sendMessage(msg);
session.updateActivity();
} catch (Exception ez1) {
//ignored
}
}
/**
* {@inheritDoc}
*/
@Override
public String getCursorUpName() {
return CursorUp;
}
/**
* {@inheritDoc}
*/
@Override
public String getCursorDownName() {
return CursorDown;
}
/**
* {@inheritDoc}
*/
@Override
public void clear() {
write("\u000c");
}
/**
* {@inheritDoc}
*/
@Override
public void setPrompt(String newPrompt) {
synchronized (in) {
prompt = newPrompt;
in.notify();
}
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void setCommandLine(String cmd) {
System.out.println("setCommandLine NOT YET IMPLEMENTED");
}
/**
* {@inheritDoc}
*/
@Override
public void setStatusGroup(PeerGroup group) {
System.out.println("setStatusGroup NOT YET IMPLEMENTED");
}
}