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/*******************************************************************************
* Copyright (c) 2011, 2015 Texas Instruments, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Dobrin Alexiev (Texas Instruments) - initial API and implementation (bug 336876)
********************************************************************************/
package org.eclipse.cdt.dsf.debug.internal.ui.debugview.layout.actions;
import java.util.HashSet;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.DsfExecutor;
import org.eclipse.cdt.dsf.concurrent.DsfRunnable;
import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.internal.provisional.service.IExecutionContextTranslator;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IExecutionDMContext;
import org.eclipse.cdt.dsf.internal.ui.DsfUIPlugin;
import org.eclipse.cdt.dsf.service.DsfServicesTracker;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.IDMVMContext;
import org.eclipse.debug.core.commands.IDebugCommandHandler;
import org.eclipse.debug.core.commands.IDebugCommandRequest;
import org.eclipse.debug.core.commands.IEnabledStateRequest;
/**
* @since 2.2
*/
public abstract class DsfDebugViewLayoutCommand implements IDebugCommandHandler{
protected final DsfExecutor fExecutor;
protected final DsfServicesTracker fTracker;
protected static IExecutionDMContext[] EMPTY_ARRAY = new IExecutionDMContext[0];
public DsfDebugViewLayoutCommand(DsfSession session) {
fExecutor = session.getExecutor();
fTracker = new DsfServicesTracker(DsfUIPlugin.getBundleContext(), session.getId());
}
public void dispose() {
fTracker.dispose();
}
/**
*
* @param request
* @return set of IExecutionDMContext if:
* - all elements are from a DSF session.
* - all elements are from the same DSF session.
*/
protected IExecutionDMContext[] getDMContexts(IDebugCommandRequest request) {
HashSet<IExecutionDMContext> ret = new HashSet<>();
String sessionId = null;
for (Object obj : request.getElements()) {
if (!(obj instanceof IDMVMContext)) {
return EMPTY_ARRAY;
}
IDMContext dmContext = ((IDMVMContext)obj).getDMContext();
IExecutionDMContext exeContext = DMContexts.getAncestorOfType(dmContext, IExecutionDMContext.class);
if (exeContext == null) {
return EMPTY_ARRAY;
}
// make sure all elements are from the same DSF session.
if (sessionId == null) {
sessionId = dmContext.getSessionId();
}
else {
if (!sessionId.equals(dmContext.getSessionId())) {
return EMPTY_ARRAY;
}
}
ret.add(exeContext);
}
return ret.toArray(new IExecutionDMContext[ret.size()]);
}
@Override
public void canExecute(final IEnabledStateRequest request) {
final IExecutionDMContext[] executionContexts = getDMContexts(request);
if (executionContexts.length > 0 && !fExecutor.isTerminated()) {
fExecutor.submit(new DsfRunnable() {
@Override
public void run() {
IExecutionContextTranslator translator = fTracker.getService(IExecutionContextTranslator.class);
if (translator != null) {
canExecuteOnDsfThread(translator, executionContexts,
new DataRequestMonitor<Boolean>(fExecutor, null) {
@Override
protected void handleCompleted() {
boolean canExecute = isSuccess() && getData();
request.setEnabled(canExecute);
request.done();
}
});
} else {
request.setEnabled(false);
request.done();
}
}
});
}
else {
request.setEnabled(false);
request.done();
}
}
@Override
public boolean execute(final IDebugCommandRequest request) {
final IExecutionDMContext[] executionContexts = getDMContexts(request);
if (executionContexts.length > 0 && !fExecutor.isTerminated()) {
fExecutor.submit(new DsfRunnable() {
@Override
public void run() {
IExecutionContextTranslator translator = fTracker.getService(IExecutionContextTranslator.class);
if (translator != null) {
executeOnDsfThread(translator, executionContexts,
new RequestMonitor(fExecutor, null) {
@Override
protected void handleCompleted() {
request.done();
}
});
}
else {
request.done();
}
}
});
return false;
}
request.done();
return true;
}
abstract void executeOnDsfThread(IExecutionContextTranslator translator, IExecutionDMContext[] contexts, RequestMonitor rm);
abstract void canExecuteOnDsfThread(IExecutionContextTranslator translator, IExecutionDMContext[] contexts, DataRequestMonitor<Boolean> rm);
}
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