/*******************************************************************************
* Copyright (c) 2006, 2009 Ericsson 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:
* Ericsson - Initial API and implementation
* Wind River Systems - Factored out AbstractContainerVMNode
*******************************************************************************/
package org.eclipse.cdt.examples.dsf.pda.ui.viewmodel.launch;
import org.eclipse.cdt.dsf.concurrent.IDsfStatusConstants;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.ui.viewmodel.launch.AbstractContainerVMNode;
import org.eclipse.cdt.dsf.debug.ui.viewmodel.launch.ILaunchVMConstants;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.AbstractDMVMProvider;
import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.IDMVMContext;
import org.eclipse.cdt.dsf.ui.viewmodel.properties.IPropertiesUpdate;
import org.eclipse.cdt.examples.dsf.pda.service.PDACommandControl;
import org.eclipse.cdt.examples.dsf.pda.service.PDAVirtualMachineDMContext;
import org.eclipse.cdt.examples.dsf.pda.ui.PDAUIPlugin;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IChildrenUpdate;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementCompareRequest;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementMementoProvider;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementMementoRequest;
import org.eclipse.ui.IMemento;
/**
* View Model node representing a PDA virtual machine. It extends
* the base container node and adds label and memento generation.
*/
@SuppressWarnings("restriction")
public class PDAVirtualMachineVMNode extends AbstractContainerVMNode
implements IElementMementoProvider
{
public PDAVirtualMachineVMNode(AbstractDMVMProvider provider, DsfSession session) {
super(provider, session);
}
@Override
public String toString() {
return "PDAContainerVMNode(" + getSession().getId() + ")";
}
@Override
protected void updateElementsInSessionThread(IChildrenUpdate update) {
// Get the instance of the service. Note that there is no race condition
// in getting the service since this method is called only in the
// service executor thread.
final PDACommandControl commandControl = getServicesTracker().getService(PDACommandControl.class);
// Check if the service is available. If it is not, no elements are
// updated.
if (commandControl == null) {
handleFailedUpdate(update);
return;
}
update.setChild(createVMContext(commandControl.getContext()), 0);
update.done();
}
@Override
protected void updatePropertiesInSessionThread(IPropertiesUpdate[] updates) {
for (int i = 0; i < updates.length; i++) {
// Find the PDA program context.
final PDAVirtualMachineDMContext dmc =
findDmcInPath(updates[i].getViewerInput(), updates[i].getElementPath(), PDAVirtualMachineDMContext.class);
if (dmc != null) {
updates[i].setProperty(PROP_NAME, "PDA");
updates[i].setProperty(ILaunchVMConstants.PROP_ID, dmc.getProgram());
} else {
updates[i].setStatus(new Status(IStatus.ERROR, PDAUIPlugin.PLUGIN_ID, IDsfStatusConstants.INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
}
}
super.updatePropertiesInSessionThread(updates);
}
private String produceProgramElementName( String viewName , PDAVirtualMachineDMContext execCtx ) {
return "PDA." + execCtx.getProgram(); //$NON-NLS-1$
}
private final String MEMENTO_NAME = "PDAPROGRAM_MEMENTO_NAME"; //$NON-NLS-1$
public void compareElements(IElementCompareRequest[] requests) {
for ( IElementCompareRequest request : requests ) {
Object element = request.getElement();
IMemento memento = request.getMemento();
String mementoName = memento.getString(MEMENTO_NAME);
if (mementoName != null) {
if (element instanceof IDMVMContext) {
IDMContext dmc = ((IDMVMContext)element).getDMContext();
if ( dmc instanceof PDAVirtualMachineDMContext) {
String elementName = produceProgramElementName( request.getPresentationContext().getId(), (PDAVirtualMachineDMContext) dmc );
request.setEqual( elementName.equals( mementoName ) );
}
}
}
request.done();
}
}
public void encodeElements(IElementMementoRequest[] requests) {
for ( IElementMementoRequest request : requests ) {
Object element = request.getElement();
IMemento memento = request.getMemento();
if (element instanceof IDMVMContext) {
IDMContext dmc = ((IDMVMContext)element).getDMContext();
if ( dmc instanceof PDAVirtualMachineDMContext) {
String elementName = produceProgramElementName( request.getPresentationContext().getId(), (PDAVirtualMachineDMContext) dmc );
memento.putString(MEMENTO_NAME, elementName);
}
}
request.done();
}
}
}