/*******************************************************************************
* Copyright (c) 2007, 2010 Wind River 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:
* Wind River - Initial API and implementation
* Ericsson - Low-level breakpoints integration
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.service;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.RejectedExecutionException;
import org.eclipse.cdt.dsf.concurrent.CountingRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.DsfRunnable;
import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.cdt.dsf.concurrent.ThreadSafe;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.service.IBreakpoints.IBreakpointDMContext;
import org.eclipse.cdt.dsf.debug.service.IBreakpoints.IBreakpointsTargetDMContext;
import org.eclipse.cdt.dsf.internal.DsfPlugin;
import org.eclipse.cdt.dsf.service.AbstractDsfService;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.core.resources.IMarkerDelta;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.IBreakpointListener;
import org.eclipse.debug.core.IBreakpointManager;
import org.eclipse.debug.core.IBreakpointManagerListener;
import org.eclipse.debug.core.model.IBreakpoint;
import org.osgi.framework.BundleContext;
/**
* Breakpoints mediator is a DSF service which synchronizes breakpoints in the
* IDE and breakpoints in the debugger. The IDE breakpoints are managed by the
* {@link IBreakpointManager} while the debugger breakpoints are accessed
* through the {@link IBreakpoints} service.
* <p>
* This class is not intended to be extended by clients. Instead clients should
* implement the {@link IBreakpointAttributeTranslator} interface which is used
* to translate breakpoint attributes between the IDE and debugger breakpoints.
* <p>
* Note: This breakpoint mediator implementation has been superseded by a more
* powerful {@link BreakpointsMediator2} implementation.
*
* @since 1.0
* @see IBreakpointAttributeTranslator
* @see BreakpointsMediator2
*/
public class BreakpointsMediator extends AbstractDsfService implements IBreakpointManagerListener, IBreakpointListener
{
/**
* The attribute translator that this service will use to map the platform
* breakpiont attributes to the corresponding target attributes, and vice
* versa.
*/
private IBreakpointAttributeTranslator fAttributeTranslator;
/**
* DSF Debug service for creating breakpoints.
*/
IBreakpoints fBreakpoints;
/**
* Platform breakpoint manager
*/
IBreakpointManager fBreakpointManager;
///////////////////////////////////////////////////////////////////////////
// Breakpoints tracking
///////////////////////////////////////////////////////////////////////////
/**
* Holds the set of platform breakpoints with their corresponding back-end
* breakpoint attributes, per context (i.e. each platform breakpoint is
* replicated for each execution context).
* - Context entry added/removed on start/stopTrackingBreakpoints()
* - Augmented on breakpointAdded()
* - Modified on breakpointChanged()
* - Diminished on breakpointRemoved()
*/
private Map<IBreakpointsTargetDMContext, Map<IBreakpoint, List<Map<String, Object>>>> fPlatformBPs =
new HashMap<IBreakpointsTargetDMContext, Map<IBreakpoint, List<Map<String, Object>>>>();
/**
* Holds the mapping from platform breakpoint to the corresponding target
* breakpoint(s), per context. There can be multiple back-end BPs for a
* single platform BP in the case of [1] multiple target contexts, and/or
* [2] thread filtering.
* Updated when:
* - We start/stop tracking an execution context
* - A platform breakpoint is added/removed
* - A thread filter is applied/removed
*/
private Map<IBreakpointsTargetDMContext, Map<IBreakpoint, List<IBreakpointDMContext>>> fBreakpointDMContexts =
new HashMap<IBreakpointsTargetDMContext, Map<IBreakpoint, List<IBreakpointDMContext>>>();
/**
* Due to the very asynchronous nature of DSF, a new breakpoint request can
* pop up at any time before an ongoing one is completed. The following set
* is used to store requests until the ongoing operation completes.
*/
private Set<IBreakpoint> fPendingRequests = new HashSet<IBreakpoint>();
/**
* @see fPendingRequests
*/
private Set<IBreakpoint> fPendingBreakpoints = new HashSet<IBreakpoint>();
///////////////////////////////////////////////////////////////////////////
// AbstractDsfService
///////////////////////////////////////////////////////////////////////////
/**
* The service constructor
*
* @param session
* @param debugModelId
*/
public BreakpointsMediator(DsfSession session, IBreakpointAttributeTranslator attributeTranslator) {
super(session);
fAttributeTranslator = attributeTranslator;
}
@Override
public void initialize(final RequestMonitor rm) {
// - Collect references for the services we interact with
// - Register to interesting events
// - Obtain the list of platform breakpoints
// - Register the service for interested parties
super.initialize(
new RequestMonitor(getExecutor(), rm) {
@Override
protected void handleSuccess() {
doInitialize(rm);
}});
}
/**
* Asynchronous service initialization
*
* @param requestMonitor
*/
private void doInitialize(RequestMonitor rm) {
// Get the services references
fBreakpoints = getServicesTracker().getService(IBreakpoints.class);
fBreakpointManager = DebugPlugin.getDefault().getBreakpointManager();
fAttributeTranslator.initialize(this);
// Register to the useful events
fBreakpointManager.addBreakpointListener(this);
fBreakpointManager.addBreakpointManagerListener( this );
// Register this service
register(new String[] { BreakpointsMediator.class.getName() },
new Hashtable<String, String>());
rm.done();
}
@Override
public void shutdown(final RequestMonitor rm) {
// - Un-register the service
// - Stop listening to events
// - Remove the breakpoints installed by this service
//
// Since we are shutting down, there is no overwhelming need
// to keep the maps coherent...
// Stop accepting requests and events
unregister();
fBreakpointManager.removeBreakpointListener(this);
fBreakpointManager.removeBreakpointManagerListener( this );
fAttributeTranslator.dispose();
// Cleanup the breakpoints that are still installed by the service.
// Use a counting monitor which will call mom to complete the shutdown
// after the breakpoints are un-installed (successfully or not).
CountingRequestMonitor countingRm = new CountingRequestMonitor(getExecutor(), rm) {
@Override
protected void handleCompleted() {
BreakpointsMediator.super.shutdown(rm);
}
};
// We have to make a copy of the fPlatformBPs keys because uninstallBreakpoints()
// modifies the map as it walks through it.
List<IBreakpointsTargetDMContext> platformBPKeysCopy = new ArrayList<IBreakpointsTargetDMContext>(fPlatformBPs.size());
platformBPKeysCopy.addAll(0, fPlatformBPs.keySet());
for (IBreakpointsTargetDMContext dmc : platformBPKeysCopy) {
stopTrackingBreakpoints(dmc, countingRm);
}
countingRm.setDoneCount(platformBPKeysCopy.size());
}
@Override
protected BundleContext getBundleContext() {
return DsfPlugin.getBundleContext();
}
///////////////////////////////////////////////////////////////////////////
// IBreakpointsManager
///////////////////////////////////////////////////////////////////////////
/**
* Install and begin tracking breakpoints for given context. The service
* will keep installing new breakpoints that appear in the IDE for this
* context until {@link #uninstallBreakpoints(IDMContext)} is called for that
* context.
* @param dmc Context to start tracking breakpoints for.
* @param rm Completion callback.
*/
public void startTrackingBreakpoints(IBreakpointsTargetDMContext dmc, final RequestMonitor rm) {
// - Augment the maps with the new execution context
// - Install the platform breakpoints on the selected target
// Validate the context
final IBreakpointsTargetDMContext breakpointsDmc = DMContexts.getAncestorOfType(dmc, IBreakpointsTargetDMContext.class);
if (breakpointsDmc == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INTERNAL_ERROR, "Invalid context type", null)); //$NON-NLS-1$
rm.done();
return;
}
// Make sure a mapping for this execution context does not already exist
Map<IBreakpoint, List<Map<String, Object>>> platformBPs = fPlatformBPs.get(dmc);
if (platformBPs != null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INTERNAL_ERROR, "Context already initialized", null)); //$NON-NLS-1$
rm.done();
return;
}
// Create entries in the breakpoint tables for the new context. These entries should only
// be removed when this service stops tracking breakpoints for the given context.
fPlatformBPs.put(breakpointsDmc, new HashMap<IBreakpoint, List<Map<String, Object>>>());
fBreakpointDMContexts.put(breakpointsDmc, new HashMap<IBreakpoint, List<IBreakpointDMContext>>());
// Install the platform breakpoints (stored in fPlatformBPs) on the target.
// We need to use a background thread for this operation because we are
// accessing the resources system to retrieve the breakpoint attributes.
// Accessing the resources system potentially requires using global locks.
// Also we will be calling IBreakpointAttributeTranslator which is prohibited
// from being called on the session executor thread.
new Job("MI Debugger: Install initial breakpoint list.") { //$NON-NLS-1$
{ setSystem(true); }
// Get the stored breakpoints from the platform BreakpointManager
// and install them on the target
@Override
protected IStatus run(IProgressMonitor monitor) {
// Read initial breakpoints from platform. Copy the breakpoint attributes into a local map.
// Note that we cannot write data into fPlatformBPs table here directly because we are not
// executing on the dispatch thread.
final Map<IBreakpoint, List<Map<String, Object>>> initialPlatformBPs =
new HashMap<IBreakpoint, List<Map<String, Object>>>();
try {
// Get the stored breakpoint list from the platform BreakpointManager
IBreakpoint[] bps = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints();
// Single out the installable breakpoints...
for (IBreakpoint bp : bps) {
if (fAttributeTranslator.supportsBreakpoint(bp)) {
// Retrieve the breakpoint attributes
List<Map<String, Object>> attrsArray =
fAttributeTranslator.getBreakpointAttributes(bp, fBreakpointManager.isEnabled());
// Store it for now (will be installed on the dispatcher thread)
initialPlatformBPs.put(bp, attrsArray);
}
}
} catch (CoreException e) {
IStatus status = new Status(
IStatus.ERROR, DsfPlugin.PLUGIN_ID, REQUEST_FAILED, "Unable to read initial breakpoint attributes", e); //$NON-NLS-1$
rm.setStatus(status);
rm.done();
return status;
}
// Submit the runnable to plant the breakpoints on dispatch thread.
getExecutor().submit(new Runnable() {
public void run() {
installInitialBreakpoints(breakpointsDmc, initialPlatformBPs, rm);
}
});
return Status.OK_STATUS;
}
}.schedule();
}
/**
* Installs the breakpoints that existed prior to the activation of this
* breakpoints context.
*/
private void installInitialBreakpoints(final IBreakpointsTargetDMContext dmc,
Map<IBreakpoint, List<Map<String, Object>>> initialPlatformBPs,
RequestMonitor rm)
{
// Retrieve the set of platform breakpoints for this context
Map<IBreakpoint, List<Map<String, Object>>> platformBPs = fPlatformBPs.get(dmc);
if (platformBPs == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
rm.done();
return;
}
// Install the individual breakpoints on the executor thread
// Requires a counting monitor to know when we're done
final CountingRequestMonitor countingRm = new CountingRequestMonitor(getExecutor(), rm);
countingRm.setDoneCount(initialPlatformBPs.size());
for (final IBreakpoint bp : initialPlatformBPs.keySet()) {
final List<Map<String, Object>> attrs = initialPlatformBPs.get(bp);
// Upon determining the debuggerPath, the breakpoint is installed
installBreakpoint(dmc, bp, attrs, new RequestMonitor(getExecutor(), countingRm));
}
}
public void stopTrackingBreakpoints(final IBreakpointsTargetDMContext dmc, final RequestMonitor rm) {
// - Remove the target breakpoints for the given execution context
// - Update the maps
// Remove the breakpoints for given DMC from the internal maps.
Map<IBreakpoint, List<Map<String, Object>>> platformBPs = fPlatformBPs.get(dmc);
if (platformBPs == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INTERNAL_ERROR, "Breakpoints not installed for given context", null)); //$NON-NLS-1$
rm.done();
return;
}
// Uninstall the individual breakpoints on the executor thread
// Requires a counting monitor to know when we're done
final CountingRequestMonitor countingRm = new CountingRequestMonitor(getExecutor(), rm);
countingRm.setDoneCount(platformBPs.size());
for (final IBreakpoint bp : platformBPs.keySet()) {
uninstallBreakpoint(dmc, bp,
new RequestMonitor(getExecutor(), countingRm) {
@Override
protected void handleCompleted() {
// After the breakpoint is removed from target. Call the attribute
// translator to refresh breakpoint status based on the new target
// breakpoint status.
new Job("Breakpoint status update") { //$NON-NLS-1$
{ setSystem(true); }
@Override
protected IStatus run(IProgressMonitor monitor) {
fAttributeTranslator.updateBreakpointStatus(bp);
return Status.OK_STATUS;
};
}.schedule();
countingRm.done();
}
});
}
}
///////////////////////////////////////////////////////////////////////////
// Back-end interface functions
///////////////////////////////////////////////////////////////////////////
/**
* Install a new platform breakpoint on the back-end. A platform breakpoint
* can resolve into multiple back-end breakpoints when threads are taken
* into account.
*
* @param dmc
* @param breakpoint
* @param attrsList
* @param rm
*/
private void installBreakpoint(IBreakpointsTargetDMContext dmc, final IBreakpoint breakpoint,
final List<Map<String, Object>> attrsList, final RequestMonitor rm)
{
// Retrieve the set of breakpoints for this context
final Map<IBreakpoint, List<Map<String, Object>>> platformBPs = fPlatformBPs.get(dmc);
assert platformBPs != null;
final Map<IBreakpoint, List<IBreakpointDMContext>> breakpointIDs = fBreakpointDMContexts.get(dmc);
assert breakpointIDs != null; // fBreakpointIds should be updated in parallel with fPlatformBPs
// Ensure the breakpoint is not already installed
if (platformBPs.containsKey(breakpoint)) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_STATE, "Breakpoint already installed", null)); //$NON-NLS-1$
rm.done();
return;
}
// Update the breakpoint status when all back-end breakpoints have been installed
final CountingRequestMonitor installRM = new CountingRequestMonitor(getExecutor(), rm) {
@Override
protected void handleCompleted() {
// Store the platform breakpoint
platformBPs.put(breakpoint, attrsList);
new Job("Breakpoint status update") { //$NON-NLS-1$
{ setSystem(true); }
@Override
protected IStatus run(IProgressMonitor monitor) {
fAttributeTranslator.updateBreakpointStatus(breakpoint);
return Status.OK_STATUS;
};
}.schedule();
rm.done();
}
};
// A back-end breakpoint needs to be installed for each specified attributes map.
installRM.setDoneCount(attrsList.size());
// Install the back-end breakpoint(s)
for (Map<String, Object> attrs : attrsList) {
fBreakpoints.insertBreakpoint(
dmc, attrs,
new DataRequestMonitor<IBreakpointDMContext>(getExecutor(), installRM) {
@Override
protected void handleCompleted() {
List<IBreakpointDMContext> list = breakpointIDs.get(breakpoint);
if (list == null) {
list = new LinkedList<IBreakpointDMContext>();
breakpointIDs.put(breakpoint, list);
}
if (isSuccess()) {
// Add the breakpoint back-end mapping
list.add(getData());
} else {
// TODO (bug 219841): need to add breakpoint error status tracking
// in addition to fBreakpointDMContexts.
}
installRM.done();
}
});
}
}
/**
* Un-install an individual breakpoint on the back-end. For one platform
* breakpoint, there could be multiple corresponding back-end breakpoints.
*
* @param dmc
* @param breakpoint
* @param rm
*/
private void uninstallBreakpoint(final IBreakpointsTargetDMContext dmc, final IBreakpoint breakpoint,
final RequestMonitor rm)
{
// Remove completion monitor
CountingRequestMonitor removeRM = new CountingRequestMonitor(getExecutor(), rm) {
@Override
protected void handleCompleted() {
// Remove the attributes mapping
Map<IBreakpoint, List<Map<String, Object>>> platformBPs = fPlatformBPs.get(dmc);
if (platformBPs == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
rm.done();
return;
}
platformBPs.remove(breakpoint);
// Remove the back-end mapping
Map<IBreakpoint, List<IBreakpointDMContext>> breakpointIDs = fBreakpointDMContexts.get(dmc);
if (breakpointIDs == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_HANDLE, "Invalid breakpoint", null)); //$NON-NLS-1$
rm.done();
return;
}
breakpointIDs.get(breakpoint).clear();
breakpointIDs.remove(breakpoint);
// Update breakpoint status
new Job("Breakpoint status update") { //$NON-NLS-1$
{ setSystem(true); }
@Override
protected IStatus run(IProgressMonitor monitor) {
fAttributeTranslator.updateBreakpointStatus(breakpoint);
return Status.OK_STATUS;
};
}.schedule();
rm.done();
}
};
// Remove the back-end breakpoints
Map<IBreakpoint, List<IBreakpointDMContext>> breakpointIDs = fBreakpointDMContexts.get(dmc);
if (breakpointIDs == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_HANDLE, "Invalid breakpoint", null)); //$NON-NLS-1$
rm.done();
return;
}
List<IBreakpointDMContext> list = breakpointIDs.get(breakpoint);
int count = 0;
if (list != null) {
for (IBreakpointDMContext bp : list) {
fBreakpoints.removeBreakpoint(bp, removeRM);
}
count = list.size();
}
removeRM.setDoneCount(count);
}
/**
* Modify an individual breakpoint
*
* @param context
* @param breakpoint
* @param attributes
* @param rm
* @throws CoreException
*/
private void modifyBreakpoint(final IBreakpointsTargetDMContext context, final IBreakpoint breakpoint,
final List<Map<String, Object>> newAttrsList0, final IMarkerDelta oldValues, final RequestMonitor rm)
{
// This method uses several lists to track the changed breakpoints:
// commonAttrsList - attributes which have not changed
// oldAttrsList - attributes for the breakpoint before the change
// newAttrsList - attributes for the breakpoint after the change
// oldBpContexts - target-side breakpoints from before the change
// newBpContexts - target-side breakpoints after the change
// attrDeltasList - changes in the attributes for each attribute map in
// oldAttrsList and newAttrsList
// Get the maps
final Map<IBreakpoint, List<Map<String, Object>>> platformBPs = fPlatformBPs.get(context);
final Map<IBreakpoint, List<IBreakpointDMContext>> breakpointIDs = fBreakpointDMContexts.get(context);
if (platformBPs == null || breakpointIDs == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
rm.done();
return;
}
// Get the original breakpoint attributes
final List<Map<String, Object>> oldAttrsList0 = platformBPs.get(breakpoint);
if (oldAttrsList0 == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_HANDLE, "Invalid breakpoint", null)); //$NON-NLS-1$
rm.done();
return;
}
// Get the list of corresponding back-end breakpoints
final List<IBreakpointDMContext> oldBpContexts = new ArrayList<IBreakpointDMContext>(breakpointIDs.get(breakpoint));
if (oldBpContexts == null) {
rm.setStatus(new Status(IStatus.ERROR, DsfPlugin.PLUGIN_ID, INVALID_HANDLE, "Invalid breakpoint", null)); //$NON-NLS-1$
rm.done();
return;
}
// Calculate the list of attributes maps that have not changed.
// Immediately add these to the list of new breakpoint contexts,
// and remove them from further breakpoint attribute comparisons.
final List<Map<String, Object>> commonAttrsList = getCommonAttributeMaps(newAttrsList0, oldAttrsList0);
final List<IBreakpointDMContext> newBpContexts = new ArrayList<IBreakpointDMContext>(commonAttrsList.size());
final List<Map<String, Object>> newAttrsList = new ArrayList<Map<String, Object>>(newAttrsList0);
newAttrsList.removeAll(commonAttrsList);
List<Map<String, Object>> oldAttrsList = new ArrayList<Map<String, Object>>(oldAttrsList0);
for (int i = 0; i < oldAttrsList.size(); i++) {
if (commonAttrsList.contains(oldAttrsList.get(i))) {
if (oldBpContexts.size() > i) {
newBpContexts.add(oldBpContexts.remove(i));
}
}
}
oldAttrsList.removeAll(commonAttrsList);
// Create a list of attribute changes. The lenghth of this list will
// always be max(oldAttrList.size(), newAttrsList.size()), padded with
// null's if oldAttrsList was longer.
final List<Map<String, Object>> attrDeltasList = getAttributesDeltas(oldAttrsList, newAttrsList);
// Create the request monitor that will be called when all
// modifying/inserting/removing is complete.
final CountingRequestMonitor countingRM = new CountingRequestMonitor(getExecutor(), rm) {
@Override
protected void handleCompleted() {
// Save the new list of breakpoint contexts and attributes
breakpointIDs.put(breakpoint, newBpContexts);
newAttrsList.addAll(commonAttrsList);
platformBPs.put(breakpoint, newAttrsList);
// Update breakpoint status. updateBreakpointStatus() cannot
// be called on the executor thread, so we need to
// use a Job.
new Job("Breakpoint status update") { //$NON-NLS-1$
{ setSystem(true); }
@Override
protected IStatus run(IProgressMonitor monitor) {
fAttributeTranslator.updateBreakpointStatus(breakpoint);
return Status.OK_STATUS;
};
}.schedule();
super.handleCompleted();
}
};
// Set the count, if could be zero if no breakpoints have actually changed.
countingRM.setDoneCount(attrDeltasList.size());
// Process the changed breakpoints.
for (int i = 0; i < attrDeltasList.size(); i++) {
if (attrDeltasList.get(i) == null) {
// The list of new attribute maps was shorter than the old.
// Remove the corresponding target-side bp.
fBreakpoints.removeBreakpoint(oldBpContexts.get(i), countingRM);
} else if ( i >= oldBpContexts.size()) {
// The list of new attribute maps was longer, just insert
// the new breakpoint
final Map<String, Object> attrs = newAttrsList.get(i);
fBreakpoints.insertBreakpoint(
context, attrs,
new DataRequestMonitor<IBreakpointDMContext>(getExecutor(), countingRM) {
@Override
protected void handleSuccess() {
newBpContexts.add(getData());
countingRM.done();
}
});
} else if ( !fAttributeTranslator.canUpdateAttributes(oldBpContexts.get(i), attrDeltasList.get(i)) ) {
// The attribute translator tells us that the debugger cannot modify the
// breakpoint to change the given attributes. Remove the breakpoint
// and insert a new one.
final Map<String, Object> attrs = newAttrsList.get(i);
fBreakpoints.removeBreakpoint(
oldBpContexts.get(i),
new RequestMonitor(getExecutor(), countingRM) {
@Override
protected void handleCompleted() {
fBreakpoints.insertBreakpoint(
context, attrs,
new DataRequestMonitor<IBreakpointDMContext>(getExecutor(), countingRM) {
@Override
protected void handleCompleted() {
if (isSuccess()) {
newBpContexts.add(getData());
} else {
// TODO (bug 219841): need to add breakpoint error status tracking
// in addition to fBreakpointDMContexts.
}
countingRM.done();
}
});
}
});
} else {
// The back end can modify the breakpoint. Update the breakpoint with the
// new attributes.
final IBreakpointDMContext bpCtx = oldBpContexts.get(i);
fBreakpoints.updateBreakpoint(
oldBpContexts.get(i), newAttrsList.get(i),
new RequestMonitor(getExecutor(), countingRM) {
@Override
protected void handleSuccess() {
newBpContexts.add(bpCtx);
countingRM.done();
}
});
}
}
}
private List<Map<String, Object>> getCommonAttributeMaps(List<Map<String, Object>> array1, List<Map<String, Object>> array2)
{
List<Map<String, Object>> intersection = new LinkedList<Map<String, Object>>();
List<Map<String, Object>> list2 = new ArrayList<Map<String, Object>>(array2);
for (Map<String, Object> array1Map : array1) {
if (list2.remove(array1Map)) {
intersection.add(array1Map);
}
}
return intersection;
}
/**
* Determine the set of modified attributes
*
* @param oldAttributes
* @param newAttributes
* @return
*/
private List<Map<String, Object>> getAttributesDeltas(List<Map<String, Object>> oldAttributesList, List<Map<String, Object>> newAttributesList) {
List<Map<String, Object>> deltas = new ArrayList<Map<String, Object>>(oldAttributesList.size());
// Go through the bp attributes common to the old and the new lists and calculate
// their deltas.
for (int i = 0; i < oldAttributesList.size() && i < newAttributesList.size(); i++) {
Map<String, Object> oldAttributes = oldAttributesList.get(i);
Map<String, Object> newAttributes = newAttributesList.get(i);
Map<String, Object> delta = new HashMap<String, Object>();
Set<String> oldKeySet = oldAttributes.keySet();
Set<String> newKeySet = newAttributes.keySet();
Set<String> commonKeys = new HashSet<String>(newKeySet); commonKeys.retainAll(oldKeySet);
Set<String> addedKeys = new HashSet<String>(newKeySet); addedKeys.removeAll(oldKeySet);
Set<String> removedKeys = new HashSet<String>(oldKeySet); removedKeys.removeAll(newKeySet);
// Add the modified attributes
for (String key : commonKeys) {
if (!(oldAttributes.get(key).equals(newAttributes.get(key))))
delta.put(key, newAttributes.get(key));
}
// Add the new attributes
for (String key : addedKeys) {
delta.put(key, newAttributes.get(key));
}
// Remove the deleted attributes
for (String key : removedKeys) {
delta.put(key, null);
}
deltas.add(delta);
}
// Add all the new attributes as deltas
for (int i = deltas.size(); i < newAttributesList.size(); i++) {
deltas.add(newAttributesList.get(i));
}
// For any old attribute Maps that were removed, insert a null value in the deltas list.
for (int i = deltas.size(); i < oldAttributesList.size(); i++) {
deltas.add(null);
}
return deltas;
}
///////////////////////////////////////////////////////////////////////////
// IBreakpointManagerListener implementation
///////////////////////////////////////////////////////////////////////////
public void breakpointManagerEnablementChanged(boolean enabled) {
for (IBreakpoint breakpoint : fBreakpointManager.getBreakpoints()) {
breakpointChanged(breakpoint, null);
}
}
@ThreadSafe
public void breakpointAdded(final IBreakpoint breakpoint) {
if (fAttributeTranslator.supportsBreakpoint(breakpoint)) {
try {
// Retrieve the breakpoint attributes
final List<Map<String, Object>> attrsArray =
fAttributeTranslator.getBreakpointAttributes(breakpoint, fBreakpointManager.isEnabled());
getExecutor().execute(new DsfRunnable() {
public void run() {
//TODO pp: need to track pending requests
final CountingRequestMonitor countingRm = new CountingRequestMonitor(getExecutor(), null) {
@Override
protected void handleError() {
if (getStatus().getSeverity() == IStatus.ERROR) {
DsfPlugin.getDefault().getLog().log(getStatus());
}
}
};
countingRm.setDoneCount(fPlatformBPs.size());
// Install the breakpoint in all the execution contexts
for (final IBreakpointsTargetDMContext dmc : fPlatformBPs.keySet()) {
installBreakpoint(dmc, breakpoint, attrsArray, new RequestMonitor(getExecutor(), countingRm));
}
}
});
} catch (CoreException e) {
DsfPlugin.getDefault().getLog().log(e.getStatus());
} catch (RejectedExecutionException e) {
}
}
}
///////////////////////////////////////////////////////////////////////////
// IBreakpointListener implementation
///////////////////////////////////////////////////////////////////////////
public void breakpointChanged(final IBreakpoint breakpoint, final IMarkerDelta delta) {
if (fAttributeTranslator.supportsBreakpoint(breakpoint)) {
try {
// Retrieve the breakpoint attributes
final List<Map<String, Object>> attrsArray =
fAttributeTranslator.getBreakpointAttributes(breakpoint, fBreakpointManager.isEnabled());
// Modify the breakpoint in all the target contexts
getExecutor().execute( new DsfRunnable() {
public void run() {
// If the breakpoint is currently being updated, queue the request and exit
if (fPendingRequests.contains(breakpoint)) {
fPendingBreakpoints.add(breakpoint);
return;
}
// Keep track of the updates
final CountingRequestMonitor countingRm = new CountingRequestMonitor(getExecutor(), null) {
@Override
protected void handleCompleted() {
if (!isSuccess()) {
if (getStatus().getSeverity() == IStatus.ERROR) {
DsfPlugin.getDefault().getLog().log(getStatus());
}
}
// Indicate that the pending request has completed
fPendingRequests.remove(breakpoint);
// Process the next pending update for this breakpoint
if (fPendingBreakpoints.contains(breakpoint)) {
fPendingBreakpoints.remove(breakpoint);
new Job("Deferred breakpoint changed job") { //$NON-NLS-1$
{ setSystem(true); }
@Override
protected IStatus run(IProgressMonitor monitor) {
breakpointChanged(breakpoint, delta);
return Status.OK_STATUS;
};
}.schedule();
}
}
};
countingRm.setDoneCount(fPlatformBPs.size());
// Mark the breakpoint as being updated and go
fPendingRequests.add(breakpoint);
// Modify the breakpoint in all the execution contexts
for (final IBreakpointsTargetDMContext dmc : fPlatformBPs.keySet()) {
modifyBreakpoint(dmc, breakpoint, attrsArray, delta, new RequestMonitor(getExecutor(), countingRm));
}
}
});
} catch (CoreException e) {
DsfPlugin.getDefault().getLog().log(e.getStatus());
} catch (RejectedExecutionException e) {
}
}
}
public void breakpointRemoved(final IBreakpoint breakpoint, IMarkerDelta delta) {
if (fAttributeTranslator.supportsBreakpoint(breakpoint)) {
try {
getExecutor().execute(new DsfRunnable() {
public void run() {
//TODO pp: need to track pending requests
CountingRequestMonitor countingRm = new CountingRequestMonitor(getExecutor(), null) {
@Override
protected void handleError() {
if (getStatus().getSeverity() == IStatus.ERROR) {
DsfPlugin.getDefault().getLog().log(getStatus());
}
}
};
countingRm.setDoneCount(fPlatformBPs.size());
// Remove the breakpoint in all the execution contexts
for (IBreakpointsTargetDMContext dmc : fPlatformBPs.keySet()) {
if (fPlatformBPs.get(dmc).remove(breakpoint) != null) {
uninstallBreakpoint(dmc, breakpoint, countingRm);
} else {
// Breakpoint not installed for given context, do nothing.
}
}
}
});
} catch (RejectedExecutionException e) {
}
}
}
}