/*
* 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 com.sun.max.jdwp.constants.*;
import com.sun.max.jdwp.constants.Error;
import com.sun.max.jdwp.data.*;
import com.sun.max.jdwp.protocol.*;
import com.sun.max.jdwp.protocol.ObjectReferenceCommands.*;
import com.sun.max.jdwp.vm.proxy.*;
/**
*
*/
public class ObjectReferenceHandlers extends Handlers {
public ObjectReferenceHandlers(JDWPSession session) {
super(session);
}
@Override
public void registerWith(CommandHandlerRegistry registry) {
registry.addCommandHandler(new ReferenceTypeHandler());
registry.addCommandHandler(new GetValuesHandler());
registry.addCommandHandler(new SetValuesHandler());
registry.addCommandHandler(new MonitorInfoHandler());
registry.addCommandHandler(new InvokeMethodHandler());
registry.addCommandHandler(new DisableCollectionHandler());
registry.addCommandHandler(new EnableCollectionHandler());
registry.addCommandHandler(new IsCollectedHandler());
registry.addCommandHandler(new ReferringObjectsHandler());
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_ReferenceType">
* JDWP specification for command ObjectReference-ReferenceType.</a>
*/
private class ReferenceTypeHandler extends ObjectReferenceCommands.ReferenceType.Handler {
@Override
public ReferenceType.Reply handle(ReferenceType.IncomingRequest incomingRequest) throws JDWPException {
final ObjectProvider object = session().getObject(incomingRequest.object);
final ReferenceTypeProvider refType = object.getReferenceType();
final ReferenceType.Reply reply = new ReferenceType.Reply();
reply.refTypeTag = session().getTypeTag(refType);
reply.typeID = session().toID(refType);
return reply;
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_GetValues">
* JDWP specification for command ObjectReference-GetValues.</a>
*/
private class GetValuesHandler extends ObjectReferenceCommands.GetValues.Handler {
@Override
public GetValues.Reply handle(GetValues.IncomingRequest incomingRequest) throws JDWPException {
final ObjectProvider object = session().getObject(incomingRequest.object);
final ReferenceTypeProvider referenceType = object.getReferenceType();
final GetValues.Reply reply = new GetValues.Reply();
reply.values = new JDWPValue[incomingRequest.fields.length];
for (int i = 0; i < reply.values.length; i++) {
final ID.FieldID fieldID = incomingRequest.fields[i].fieldID;
final FieldProvider field = session().getField(session().toID(referenceType), fieldID);
final JDWPValue value = session().toJDWPValue(field.getValue(object));
reply.values[i] = value;
}
return reply;
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_SetValues">
* JDWP specification for command ObjectReference-SetValues.</a>
*/
private class SetValuesHandler extends ObjectReferenceCommands.SetValues.Handler {
/**
* WARNING: See the interface method comment for this method.
*/
@Override
public int helpAtDecodingUntaggedValue(SetValues.IncomingRequest data) throws JDWPException {
int index = -1;
for (SetValues.FieldValue fieldValue : data.values) {
if (fieldValue == null) {
break;
}
index++;
}
assert index >= 0 && index < data.values.length : "Index must be valid!";
assert data.object != null && data.values[index] != null : "Packet must be partially present!";
final ObjectProvider object = session().getObject(data.object);
final ID.FieldID fieldID = data.values[index].fieldID;
final FieldProvider field = session().getField(session().toID(object.getReferenceType()), fieldID);
return JDWPSession.getValueTypeTag(field.getType());
}
@Override
public SetValues.Reply handle(SetValues.IncomingRequest incomingRequest) throws JDWPException {
final ObjectProvider object = session().getObject(incomingRequest.object);
for (SetValues.FieldValue fv : incomingRequest.values) {
final FieldProvider field = session().getField(session().toID(object.getReferenceType()), fv.fieldID);
field.setValue(object, session().toValue(fv.value));
}
return new SetValues.Reply();
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_MonitorInfo">
* JDWP specification for command ObjectReference-MonitorInfo.</a>
*/
private class MonitorInfoHandler extends ObjectReferenceCommands.MonitorInfo.Handler {
@Override
public MonitorInfo.Reply handle(MonitorInfo.IncomingRequest incomingRequest) throws JDWPException {
// TODO: Consider implementing this.
throw new JDWPException((short) Error.NOT_IMPLEMENTED);
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_InvokeMethod">
* JDWP specification for command ObjectReference-InvokeMethod.</a>
*/
private class InvokeMethodHandler extends ObjectReferenceCommands.InvokeMethod.Handler {
@Override
public InvokeMethod.Reply handle(InvokeMethod.IncomingRequest incomingRequest) throws JDWPException {
final ThreadProvider threadProvider = session().getThread(incomingRequest.thread);
final MethodProvider methodProvider = session().getMethod(incomingRequest.clazz, incomingRequest.methodID);
final int invokeOptions = incomingRequest.options;
final boolean singleThreaded = (invokeOptions & InvokeOptions.INVOKE_SINGLE_THREADED) != 0;
final boolean nonVirtual = (invokeOptions & InvokeOptions.INVOKE_NONVIRTUAL) != 0;
final VMValue[] args = new VMValue[incomingRequest.arguments.length];
for (int i = 0; i < args.length; i++) {
args[i] = session().toValue(incomingRequest.arguments[i]);
}
final ObjectProvider object = session().getObject(incomingRequest.object);
// TODO: Enable the possibility of exceptions here!
final VMValue result = methodProvider.invoke(object, args, threadProvider, singleThreaded, nonVirtual);
final InvokeMethod.Reply r = new InvokeMethod.Reply();
r.returnValue = session().toJDWPValue(result);
r.exception = new JDWPValue(ID.ObjectID.NULL);
return r;
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_DisableCollection">
* JDWP specification for command ObjectReference-DisableCollection.</a>
*/
private class DisableCollectionHandler extends ObjectReferenceCommands.DisableCollection.Handler {
@Override
public DisableCollection.Reply handle(DisableCollection.IncomingRequest incomingRequest) throws JDWPException {
// TODO: Consider implementing this otherwise. Currently an object with an ID is never garbage collected.
return new DisableCollection.Reply();
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_EnableCollection">
* JDWP specification for command ObjectReference-EnableCollection.</a>
*/
private class EnableCollectionHandler extends ObjectReferenceCommands.EnableCollection.Handler {
@Override
public EnableCollection.Reply handle(EnableCollection.IncomingRequest incomingRequest) throws JDWPException {
// TODO: Consider implementing this otherwise. Currently a object with an ID is never garbage collected.
return new EnableCollection.Reply();
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_IsCollected">
* JDWP specification for command ObjectReference-IsCollected.</a>
*/
private class IsCollectedHandler extends ObjectReferenceCommands.IsCollected.Handler {
@Override
public IsCollected.Reply handle(IsCollected.IncomingRequest incomingRequest) throws JDWPException {
// TODO: Consider implementing this otherwise. Currently a object with an ID is never garbage collected.
return new IsCollected.Reply(false);
}
}
/**
* <a
* href="http://download.java.net/jdk7/docs/platform/jpda/jdwp/jdwp-protocol.html#JDWP_ObjectReference_ReferringObjects">
* JDWP specification for command ObjectReference-ReferringObjects.</a>
*/
private class ReferringObjectsHandler extends ObjectReferenceCommands.ReferringObjects.Handler {
@Override
public ReferringObjects.Reply handle(ReferringObjects.IncomingRequest incomingRequest) throws JDWPException {
// TODO: Consider implementing this.
throw new JDWPNotImplementedException();
}
}
}