/** @since 2.3 */
protected List<IResourceDescription.Delta> getRelevantDeltas(IBuildContext context) {
List<IResourceDescription.Delta> result = newArrayList();
for (IResourceDescription.Delta delta : context.getDeltas()) {
if (resourceServiceProvider.canHandle(delta.getUri())) result.add(delta);
}
return result;
}
/** @since 2.3 */
protected List<IResourceDescription.Delta> getRelevantDeltas(IBuildContext context) {
List<IResourceDescription.Delta> result = newArrayList();
for (IResourceDescription.Delta delta : context.getDeltas()) {
if (resourceServiceProvider.canHandle(delta.getUri())
&& (resourceServiceProvider instanceof IResourceServiceProviderExtension)
&& !((IResourceServiceProviderExtension) resourceServiceProvider)
.isReadOnly(delta.getUri())) {
result.add(delta);
}
}
return result;
}
/** @since 2.7 */
protected boolean doGenerate(
IResourceDescription.Delta delta, IBuildContext context, IFileSystemAccess access) {
if (delta.getNew() != null) {
try {
handleChangedContents(delta, context, access);
} catch (OperationCanceledException e) {
throw e;
} catch (Exception e) {
addMarkerAndLogError(delta.getUri(), e);
}
return true;
}
return false;
}
/** @since 2.7 */
protected void doBuild(
List<IResourceDescription.Delta> deltas,
Map<String, OutputConfiguration> outputConfigurations,
Map<OutputConfiguration, Iterable<IMarker>> generatorMarkers,
IBuildContext context,
EclipseResourceFileSystemAccess2 access,
IProgressMonitor progressMonitor)
throws CoreException {
final int numberOfDeltas = deltas.size();
SubMonitor subMonitor =
SubMonitor.convert(progressMonitor, numberOfDeltas / MONITOR_CHUNK_SIZE + 1);
SubMonitor currentMonitor = null;
int clusterIndex = 0;
for (int i = 0; i < numberOfDeltas; i++) {
IResourceDescription.Delta delta = deltas.get(i);
if (subMonitor.isCanceled()) {
throw new OperationCanceledException();
}
if (i % 10 == 0) {
subMonitor.subTask(
"Compiling chunk "
+ (i / MONITOR_CHUNK_SIZE + 1)
+ " of "
+ (numberOfDeltas / MONITOR_CHUNK_SIZE + 1));
currentMonitor = subMonitor.newChild(1);
access.setMonitor(currentMonitor);
}
if (logger.isDebugEnabled()) {
logger.debug("Compiling " + delta.getUri() + " (" + i + " of " + numberOfDeltas + ")");
}
if (delta.getNew() != null
&& !clusteringPolicy.continueProcessing(
context.getResourceSet(), delta.getUri(), clusterIndex)) {
clearResourceSet(context.getResourceSet());
clusterIndex = 0;
}
Set<IFile> derivedResources =
getDerivedResources(delta, outputConfigurations, generatorMarkers);
access.setPostProcessor(getPostProcessor(delta, context, derivedResources));
if (doGenerate(delta, context, access)) {
clusterIndex++;
access.flushSourceTraces();
}
cleanDerivedResources(delta, derivedResources, context, access, currentMonitor);
}
}
@Override
public boolean isAffected(
Collection<Delta> deltas, IResourceDescription candidate, IResourceDescriptions context) {
Set<URI> outgoingReferences = descriptionUtils.collectOutgoingReferences(candidate);
if (!outgoingReferences.isEmpty()) {
for (IResourceDescription.Delta delta : deltas)
if (hasChanges(delta, candidate) && outgoingReferences.contains(delta.getUri()))
return true;
}
// this is a tradeoff - we could either check whether a given delta uri is contained
// in a reachable container and check for intersecting names afterwards, or we can do
// the other way round
// unfortunately there is no way to decide reliably which algorithm scales better
// note that this method is called for each description so we have something like a
// number of deltas x number of resources which is not really nice
List<IContainer> containers = null;
Collection<QualifiedName> importedNames = getImportedNames(candidate);
for (IResourceDescription.Delta delta : deltas) {
if (hasChanges(delta, candidate)) {
// not a java resource - delta's resource should be contained in a visible container
// as long as we did not delete the resource
URI uri = delta.getUri();
if ((uri.isPlatform() || uri.isArchive()) && delta.getNew() != null) {
if (containers == null)
containers = containerManager.getVisibleContainers(candidate, context);
boolean descriptionIsContained = false;
for (int i = 0; i < containers.size() && !descriptionIsContained; i++) {
descriptionIsContained = containers.get(i).hasResourceDescription(uri);
}
if (!descriptionIsContained) return false;
}
if (isAffected(importedNames, delta.getNew())
|| isAffected(importedNames, delta.getOld())) {
return true;
}
}
}
return false;
}
public void build(final IBuildContext context, IProgressMonitor monitor) throws CoreException {
if (!isEnabled(context)) {
return;
}
final List<IResourceDescription.Delta> deltas = getRelevantDeltas(context);
if (deltas.isEmpty()) {
return;
}
final int numberOfDeltas = deltas.size();
// monitor handling
if (monitor.isCanceled()) throw new OperationCanceledException();
SubMonitor subMonitor = SubMonitor.convert(monitor, numberOfDeltas + 3);
EclipseResourceFileSystemAccess2 access = fileSystemAccessProvider.get();
final IProject builtProject = context.getBuiltProject();
access.setProject(builtProject);
final Map<String, OutputConfiguration> outputConfigurations = getOutputConfigurations(context);
refreshOutputFolders(context, outputConfigurations, subMonitor.newChild(1));
access.setOutputConfigurations(outputConfigurations);
if (context.getBuildType() == BuildType.CLEAN || context.getBuildType() == BuildType.RECOVERY) {
SubMonitor cleanMonitor =
SubMonitor.convert(subMonitor.newChild(1), outputConfigurations.size());
for (OutputConfiguration config : outputConfigurations.values()) {
cleanOutput(context, config, cleanMonitor.newChild(1));
}
if (context.getBuildType() == BuildType.CLEAN) return;
}
Map<OutputConfiguration, Iterable<IMarker>> generatorMarkers = newHashMap();
for (OutputConfiguration config : outputConfigurations.values()) {
if (config.isCleanUpDerivedResources()) {
final IFolder outputFolder = builtProject.getFolder(config.getOutputDirectory());
final Iterable<IMarker> markers =
derivedResourceMarkers.findDerivedResourceMarkers(
outputFolder, generatorIdProvider.getGeneratorIdentifier());
generatorMarkers.put(config, markers);
}
}
for (int i = 0; i < numberOfDeltas; i++) {
final IResourceDescription.Delta delta = deltas.get(i);
// monitor handling
if (subMonitor.isCanceled()) throw new OperationCanceledException();
subMonitor.subTask(
"Compiling " + delta.getUri().lastSegment() + " (" + i + " of " + numberOfDeltas + ")");
access.setMonitor(subMonitor.newChild(1));
final String uri = delta.getUri().toString();
final Set<IFile> derivedResources = newLinkedHashSet();
for (OutputConfiguration config : outputConfigurations.values()) {
if (config.isCleanUpDerivedResources()) {
Iterable<IMarker> markers = generatorMarkers.get(config);
for (IMarker marker : markers) {
String source = derivedResourceMarkers.getSource(marker);
if (source != null && source.equals(uri))
derivedResources.add((IFile) marker.getResource());
}
}
}
access.setPostProcessor(
new EclipseResourceFileSystemAccess2.IFileCallback() {
public boolean beforeFileDeletion(IFile file) {
derivedResources.remove(file);
context.needRebuild();
return true;
}
public void afterFileUpdate(IFile file) {
handleFileAccess(file);
}
public void afterFileCreation(IFile file) {
handleFileAccess(file);
}
protected void handleFileAccess(IFile file) {
try {
derivedResources.remove(file);
derivedResourceMarkers.installMarker(file, uri);
context.needRebuild();
} catch (CoreException e) {
throw new RuntimeException(e);
}
}
});
if (delta.getNew() != null) {
handleChangedContents(delta, context, access);
}
access.flushSourceTraces();
SubMonitor deleteMonitor =
SubMonitor.convert(subMonitor.newChild(1), derivedResources.size());
for (IFile iFile : newLinkedHashSet(derivedResources)) {
IMarker marker = derivedResourceMarkers.findDerivedResourceMarker(iFile, uri);
if (marker != null) marker.delete();
if (derivedResourceMarkers.findDerivedResourceMarkers(iFile).length == 0) {
access.deleteFile(iFile, deleteMonitor);
context.needRebuild();
}
}
}
}
/**
* Whether the given delta is considered to have changed from the candidate's perspective. By
* default this will just call {@link
* org.eclipse.xtext.resource.IResourceDescription.Delta#haveEObjectDescriptionsChanged()
* Delta#haveEObjectDescriptionsChanged()}. But in some cases even "internal" changes (that are
* not visible in the EObjectDescriptions) could be interesting.
*
* @since 2.7
*/
protected boolean hasChanges(IResourceDescription.Delta delta, IResourceDescription candidate) {
return delta.haveEObjectDescriptionsChanged();
}