/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.max.jdwp.handlers;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import com.sun.max.jdwp.constants.Error;
import com.sun.max.jdwp.constants.EventKind;
import com.sun.max.jdwp.data.CommandHandlerRegistry;
import com.sun.max.jdwp.data.JDWPException;
import com.sun.max.jdwp.data.JDWPNotImplementedException;
import com.sun.max.jdwp.data.JDWPSender;
import com.sun.max.jdwp.protocol.EventRequestCommands;
import com.sun.max.jdwp.protocol.EventRequestCommands.Clear;
import com.sun.max.jdwp.protocol.EventRequestCommands.ClearAllBreakpoints;
import com.sun.max.jdwp.protocol.EventRequestCommands.Set;
/**
*
*/
public class EventRequestHandlers extends Handlers {
private Map<Integer, JDWPEventRequest> eventRequests;
public EventRequestHandlers(JDWPSession session) {
super(session);
eventRequests = new HashMap<Integer, JDWPEventRequest>();
}
@Override
public void registerWith(CommandHandlerRegistry registry) {
registry.addCommandHandler(new SetHandler());
registry.addCommandHandler(new ClearHandler());
registry.addCommandHandler(new ClearAllBreakpointsHandler());
}
/**
* <a href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_EventRequest_Set"> JDWP
* specification for command EventRequest-Set.</a>
*/
private class SetHandler extends EventRequestCommands.Set.Handler {
@Override
public Set.Reply handle(Set.IncomingRequest incomingRequest, JDWPSender replyChannel) throws JDWPException {
final byte eventKind = incomingRequest.eventKind;
JDWPEventRequest eventRequest = null;
switch (eventKind) {
case EventKind.BREAKPOINT:
eventRequest = new JDWPEventRequest.Breakpoint(incomingRequest, replyChannel, session());
break;
case EventKind.CLASS_LOAD:
throw new JDWPNotImplementedException();
case EventKind.CLASS_PREPARE:
eventRequest = new JDWPEventRequest.ClassPrepare(incomingRequest, replyChannel, session());
break;
case EventKind.CLASS_UNLOAD:
eventRequest = new JDWPEventRequest.ClassUnload(incomingRequest, replyChannel, session());
break;
case EventKind.EXCEPTION:
eventRequest = new JDWPEventRequest.Exception(incomingRequest, replyChannel, session());
break;
case EventKind.EXCEPTION_CATCH:
throw new JDWPNotImplementedException();
case EventKind.FIELD_ACCESS:
throw new JDWPNotImplementedException();
case EventKind.FIELD_MODIFICATION:
throw new JDWPNotImplementedException();
case EventKind.FRAME_POP:
throw new JDWPNotImplementedException();
case EventKind.METHOD_ENTRY:
throw new JDWPNotImplementedException();
case EventKind.METHOD_EXIT:
throw new JDWPNotImplementedException();
case EventKind.METHOD_EXIT_WITH_RETURN_VALUE:
throw new JDWPNotImplementedException();
case EventKind.MONITOR_CONTENDED_ENTER:
throw new JDWPNotImplementedException();
case EventKind.MONITOR_CONTENDED_ENTERED:
throw new JDWPNotImplementedException();
case EventKind.MONITOR_WAIT:
throw new JDWPNotImplementedException();
case EventKind.MONITOR_WAITED:
throw new JDWPNotImplementedException();
case EventKind.SINGLE_STEP:
eventRequest = new JDWPEventRequest.SingleStep(incomingRequest, replyChannel, session());
break;
case EventKind.THREAD_END:
eventRequest = new JDWPEventRequest.ThreadDeath(incomingRequest, replyChannel, session());
break;
case EventKind.THREAD_START:
eventRequest = new JDWPEventRequest.ThreadStart(incomingRequest, replyChannel, session());
break;
case EventKind.USER_DEFINED:
throw new JDWPNotImplementedException();
case EventKind.VM_DEATH:
throw new JDWPNotImplementedException();
case EventKind.VM_DISCONNECTED:
throw new JDWPNotImplementedException();
case EventKind.VM_START:
throw new JDWPNotImplementedException();
default:
throw new JDWPNotImplementedException();
}
eventRequests.put(eventRequest.getId(), eventRequest);
eventRequest.install();
return new Set.Reply(eventRequest.getId());
}
}
/**
* <a href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_EventRequest_Clear"> JDWP
* specification for command EventRequest-Clear.</a>
*/
private class ClearHandler extends EventRequestCommands.Clear.Handler {
@Override
public Clear.Reply handle(Clear.IncomingRequest incomingRequest) throws JDWPException {
final int id = incomingRequest.requestID;
if (!eventRequests.containsKey(id)) {
throw new JDWPException((short) Error.INVALID_EVENT_TYPE, "Unknown event request ID");
}
final JDWPEventRequest request = eventRequests.get(id);
final byte eventKind = incomingRequest.eventKind;
if (eventKind != request.eventKind()) {
throw new JDWPException((short) Error.INVALID_EVENT_TYPE, "Event kind does not match - got " + eventKind + ", expected " + request.eventKind());
}
removeRequest(request);
return new Clear.Reply();
}
}
private void removeRequest(JDWPEventRequest r) {
r.uninstall();
eventRequests.remove(r.getId());
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_EventRequest_ClearAllBreakpoints">
* JDWP specification for command EventRequest-ClearAllBreakpoints.</a>
*/
private class ClearAllBreakpointsHandler extends EventRequestCommands.ClearAllBreakpoints.Handler {
@Override
public ClearAllBreakpoints.Reply handle(ClearAllBreakpoints.IncomingRequest incomingRequest) {
final List<JDWPEventRequest> toRemove = new LinkedList<JDWPEventRequest>();
for (JDWPEventRequest r : eventRequests.values()) {
if (r.eventKind() == EventKind.BREAKPOINT) {
toRemove.add(r);
}
}
for (JDWPEventRequest r : toRemove) {
removeRequest(r);
}
return new ClearAllBreakpoints.Reply();
}
}
}