Examples with Delta org.eclipse.xtext.resource.IResourceDescription.Delta used on opensource projects

Example 1 with Delta

use of org.eclipse.xtext.resource.IResourceDescription.Delta in project xtext-eclipse by eclipse.

the class GenericResourceDescriptionManagerTest method testCreateDeltaAndIsAffected.

@Test
public void testCreateDeltaAndIsAffected() {
    GenericResourceDescriptionManager manager = getEmfResourceDescriptionsManager();
    EClass eClass = EcoreFactory.eINSTANCE.createEClass();
    eClass.setName("Test");
    eClass.getESuperTypes().add(EcorePackage.Literals.EPACKAGE);
    Resource resource = new XMIResourceImpl(URI.createFileURI("test.ecore"));
    resource.getContents().add(eClass);
    EPackage copyOfEPackage = EcoreUtil.copy(EcorePackage.eINSTANCE);
    Resource ecoreResource = new XMIResourceImpl(URI.createURI(copyOfEPackage.getNsURI()));
    ecoreResource.getContents().add(copyOfEPackage);
    IResourceDescription oldDescription = new CopiedResourceDescription(manager.getResourceDescription(ecoreResource));
    oldDescription.getExportedObjects();
    copyOfEPackage.setName("ecore_new");
    IResourceDescription newDescription = manager.getResourceDescription(ecoreResource);
    Delta delta = manager.createDelta(oldDescription, newDescription);
    assertTrue(delta.haveEObjectDescriptionsChanged());
    IResourceDescription referrerDescription = manager.getResourceDescription(resource);
    assertTrue(manager.isAffected(delta, referrerDescription));
}

Example 2 with Delta

use of org.eclipse.xtext.resource.IResourceDescription.Delta in project xtext-eclipse by eclipse.

the class XtextBuilder method doClean.

/**
 * @param toBeBuilt the collected URIs that should be handled by this clean operation.
 * @param removedProjects additional projects that were available but do no longer have the Xtext nature or have been deleted
 *
 * @param monitor the progress monitor to use for reporting progress to the user. It is the caller's responsibility
 *        to call done() on the given monitor. Accepts null, indicating that no progress should be
 *        reported and that the operation cannot be cancelled.
 */
protected void doClean(ToBeBuilt toBeBuilt, Set<String> removedProjects, IProgressMonitor monitor) throws CoreException {
    SubMonitor progress = SubMonitor.convert(monitor, 2);
    SetWithProjectNames toBeDeletedAndProjects = new SetWithProjectNames(toBeBuilt.getToBeDeleted(), getProject().getName(), removedProjects);
    ImmutableList<Delta> deltas = builderState.clean(toBeDeletedAndProjects, progress.split(1));
    if (participant != null) {
        Set<URI> sourceURIs = new SourceLevelURICache().getSourcesFrom(toBeBuilt.getToBeDeleted(), resourceServiceProvideRegistry);
        participant.build(new BuildContext(this, getResourceSetProvider().get(getProject()), deltas, sourceURIs, BuildType.CLEAN), progress.split(1));
    } else {
        progress.worked(1);
    }
}

Example 3 with Delta

use of org.eclipse.xtext.resource.IResourceDescription.Delta in project xtext-eclipse by eclipse.

the class XtextBuilder method doBuild.

/**
 * @param toBeBuilt
 *            the URIs that will be processed in this build run.
 * @param removedProjects
 *            the projects that are no longer considered by XtextBuilders but are yet to be removed from the index.
 * @param monitor
 *            the progress monitor for the build.
 * @param type
 *            indicates the kind of build that is running.
 *
 * @since 2.18
 */
protected void doBuild(ToBeBuilt toBeBuilt, Set<String> removedProjects, IProgressMonitor monitor, BuildType type) throws CoreException {
    buildLogger.log("Building " + getProject().getName());
    // return early if there's nothing to do.
    // we reuse the isEmpty() implementation from BuildData assuming that it doesnT access the ResourceSet which is still null
    // and would be expensive to create.
    boolean indexingOnly = type == BuildType.RECOVERY;
    if (new BuildData(getProject().getName(), null, toBeBuilt, queuedBuildData, indexingOnly, this::needRebuild, removedProjects).isEmpty())
        return;
    SubMonitor progress = SubMonitor.convert(monitor, 2);
    ResourceSet resourceSet = getResourceSetProvider().get(getProject());
    resourceSet.getLoadOptions().put(ResourceDescriptionsProvider.NAMED_BUILDER_SCOPE, Boolean.TRUE);
    BuildData buildData = new BuildData(getProject().getName(), resourceSet, toBeBuilt, queuedBuildData, indexingOnly, this::needRebuild, removedProjects);
    ImmutableList<Delta> deltas = builderState.update(buildData, progress.split(1));
    if (participant != null && !indexingOnly) {
        SourceLevelURICache sourceLevelURIs = buildData.getSourceLevelURICache();
        Set<URI> sources = sourceLevelURIs.getSources();
        participant.build(new BuildContext(this, resourceSet, deltas, sources, type), progress.split(1));
        try {
            getProject().getWorkspace().checkpoint(false);
        } catch (NoClassDefFoundError e) {
            // guard against broken Eclipse installations / bogus project configuration
            log.error(e.getMessage(), e);
        }
    } else {
        progress.worked(1);
    }
    resourceSet.eSetDeliver(false);
    for (Resource resource : resourceSet.getResources()) {
        resource.eSetDeliver(false);
    }
    resourceSet.getResources().clear();
    resourceSet.eAdapters().clear();
}

Example 4 with Delta

use of org.eclipse.xtext.resource.IResourceDescription.Delta in project xtext-eclipse by eclipse.

the class DirtyStateAwareResourceDescriptions method globalDescriptionsChanged.

public void globalDescriptionsChanged(IResourceDescription.Event event) {
    ResourceDescriptionChangeEvent changeEvent = new ResourceDescriptionChangeEvent(Iterables.filter(event.getDeltas(), new Predicate<IResourceDescription.Delta>() {

        @Override
        public boolean apply(Delta input) {
            URI uri = input.getUri();
            return !dirtyStateManager.hasContent(uri);
        }
    }));
    notifyListeners(changeEvent);
}

Example 5 with Delta

use of org.eclipse.xtext.resource.IResourceDescription.Delta in project xtext-eclipse by eclipse.

the class ClusteringBuilderState method doUpdate.

/**
 * Actually do the build.
 *
 * @param buildData
 *            the data that should be considered for the update
 * @param newData
 *            the new resource descriptions as they are to be persisted (the new index after the build).
 *            Initially contains the old resource descriptions.
 * @param monitor
 *            The progress monitor
 * @return A list of deltas describing all changes made by the build.
 */
@Override
protected Collection<Delta> doUpdate(BuildData buildData, ResourceDescriptionsData newData, IProgressMonitor monitor) {
    // We assume that we have 101 ticks to work with:
    // 20 for writeNewResourceDescription
    // 1 for queueAffectedResources
    // 80 for updating and queueAffectedResources
    // Within the mentioned 80 ticks we assume that 2/3 is spent for updating and 1/3 for queueAffectedResources
    final SubMonitor progress = SubMonitor.convert(monitor, 101);
    // Step 1: Clean the set of deleted URIs. If any of them are also added, they're not deleted.
    final Set<URI> toBeDeleted = buildData.getAndRemoveToBeDeleted();
    // Step 2: Create a new state (old state minus the deleted resources). This, by virtue of the flag
    // NAMED_BUILDER_SCOPE in the resource set's load options
    // and a Guice binding, is the index that is used during the build; i.e., linking during the build will
    // use this. Once the build is completed, the persistable index is reset to the contents of newState by
    // virtue of the newMap, which is maintained in synch with this.
    ResourceSet resourceSet = buildData.getResourceSet();
    final CurrentDescriptions newState = new CurrentDescriptions(resourceSet, newData, buildData);
    buildData.getSourceLevelURICache().cacheAsSourceURIs(toBeDeleted);
    installSourceLevelURIs(buildData);
    // Step 3: Create a queue; write new temporary resource descriptions for the added or updated resources so that we can link
    // subsequently; put all the added or updated resources into the queue.
    writeNewResourceDescriptions(buildData, this, newState, progress.split(20));
    if (progress.isCanceled()) {
        throw new OperationCanceledException();
    }
    // in this set as potential candidates.
    for (final URI uri : toBeDeleted) {
        newData.removeDescription(uri);
    }
    final Set<URI> allRemainingURIs = Sets.newLinkedHashSet(newData.getAllURIs());
    allRemainingURIs.removeAll(buildData.getToBeUpdated());
    for (URI remainingURI : buildData.getAllRemainingURIs()) {
        allRemainingURIs.remove(remainingURI);
    }
    // TODO: consider to remove any entry from upstream projects and independent projects
    // from the set of remaining uris (template method or service?)
    // this should reduce the number of to-be-checked descriptions significantly
    // for common setups (large number of reasonable sized projects)
    // Our return value. It contains all the deltas resulting from this build.
    final Set<Delta> allDeltas = Sets.newHashSet();
    // Step 5: Put all resources depending on a deleted resource into the queue. Also register the deltas in allDeltas.
    if (!toBeDeleted.isEmpty()) {
        for (final URI uri : toBeDeleted) {
            final IResourceDescription oldDescription = this.getResourceDescription(uri);
            if (oldDescription != null) {
                allDeltas.add(new DefaultResourceDescriptionDelta(oldDescription, null));
            }
        }
    }
    // Add all pending deltas to all deltas (may be scheduled java deltas)
    Collection<Delta> pendingDeltas = buildData.getAndRemovePendingDeltas();
    allDeltas.addAll(pendingDeltas);
    queueAffectedResources(allRemainingURIs, this, newState, allDeltas, allDeltas, buildData, progress.split(1));
    installSourceLevelURIs(buildData);
    IProject currentProject = getBuiltProject(buildData);
    LoadOperation loadOperation = null;
    try {
        Queue<URI> queue = buildData.getURIQueue();
        loadOperation = crossLinkingResourceLoader.create(resourceSet, currentProject);
        loadOperation.load(queue);
        // Step 6: Iteratively got through the queue. For each resource, create a new resource description and queue all depending
        // resources that are not yet in the delta. Validate resources.
        final SubMonitor subProgress = progress.split(80);
        CancelIndicator cancelMonitor = new MonitorBasedCancelIndicator(progress);
        while (!queue.isEmpty()) {
            // heuristic: we multiply the size of the queue by 3 and spent 2 ticks for updating
            // and 1 tick for queueAffectedResources since we assume that loading etc. is
            // slower than queueAffectedResources.
            subProgress.setWorkRemaining((queue.size() + 1) * 3);
            int clusterIndex = 0;
            final List<Delta> changedDeltas = Lists.newArrayList();
            while (!queue.isEmpty()) {
                if (subProgress.isCanceled()) {
                    loadOperation.cancel();
                    throw new OperationCanceledException();
                }
                if (!clusteringPolicy.continueProcessing(resourceSet, null, clusterIndex)) {
                    break;
                }
                URI changedURI = null;
                URI actualResourceURI = null;
                Resource resource = null;
                Delta newDelta = null;
                try {
                    // Load the resource and create a new resource description
                    LoadResult loadResult = loadOperation.next();
                    changedURI = loadResult.getUri();
                    actualResourceURI = loadResult.getResource().getURI();
                    resource = addResource(loadResult.getResource(), resourceSet);
                    subProgress.subTask("Updating resource " + resource.getURI().lastSegment());
                    if (LOGGER.isDebugEnabled()) {
                        LOGGER.debug("Update resource description " + actualResourceURI);
                    }
                    queue.remove(changedURI);
                    if (toBeDeleted.contains(changedURI)) {
                        break;
                    }
                    buildLogger.log("indexing " + changedURI);
                    final IResourceDescription.Manager manager = getResourceDescriptionManager(actualResourceURI);
                    if (manager != null) {
                        // Resolve links here!
                        try {
                            EcoreUtil2.resolveLazyCrossReferences(resource, cancelMonitor);
                            final IResourceDescription description = manager.getResourceDescription(resource);
                            final IResourceDescription copiedDescription = BuilderStateUtil.create(description);
                            newDelta = manager.createDelta(this.getResourceDescription(actualResourceURI), copiedDescription);
                        } catch (OperationCanceledException e) {
                            loadOperation.cancel();
                            throw e;
                        } catch (WrappedException e) {
                            throw e;
                        } catch (RuntimeException e) {
                            LOGGER.error("Error resolving cross references on resource '" + actualResourceURI + "'", e);
                            throw new LoadOperationException(actualResourceURI, e);
                        }
                    }
                } catch (final WrappedException ex) {
                    if (ex instanceof LoadOperationException) {
                        changedURI = ((LoadOperationException) ex).getUri();
                    }
                    Throwable cause = ex.getCause();
                    boolean wasResourceNotFound = false;
                    if (cause instanceof CoreException) {
                        if (IResourceStatus.RESOURCE_NOT_FOUND == ((CoreException) cause).getStatus().getCode()) {
                            wasResourceNotFound = true;
                        }
                    }
                    if (changedURI == null) {
                        // $NON-NLS-1$
                        LOGGER.error("Error loading resource", ex);
                    } else {
                        queue.remove(changedURI);
                        if (toBeDeleted.contains(changedURI))
                            break;
                        if (!wasResourceNotFound)
                            // $NON-NLS-1$
                            LOGGER.error("Error loading resource from: " + changedURI.toString(), ex);
                        if (resource != null) {
                            resourceSet.getResources().remove(resource);
                        }
                        final IResourceDescription oldDescription = this.getResourceDescription(changedURI);
                        final IResourceDescription newDesc = newState.getResourceDescription(changedURI);
                        ResourceDescriptionImpl indexReadyDescription = newDesc != null ? BuilderStateUtil.create(newDesc) : null;
                        if ((oldDescription != null || indexReadyDescription != null) && oldDescription != indexReadyDescription) {
                            newDelta = new DefaultResourceDescriptionDelta(oldDescription, indexReadyDescription);
                        }
                    }
                }
                if (newDelta != null) {
                    allDeltas.add(newDelta);
                    clusterIndex++;
                    if (newDelta.haveEObjectDescriptionsChanged())
                        changedDeltas.add(newDelta);
                    // Make the new resource description known and update the map.
                    newState.register(newDelta);
                    // Validate now.
                    if (!buildData.isIndexingOnly()) {
                        try {
                            updateMarkers(newDelta, resourceSet, subProgress);
                        } catch (OperationCanceledException e) {
                            loadOperation.cancel();
                            throw e;
                        } catch (Exception e) {
                            LOGGER.error("Error validating " + newDelta.getUri(), e);
                        }
                    }
                }
                // 2 ticks for updating since updating makes 2/3 of the work
                subProgress.split(2);
            }
            loadOperation.cancel();
            queueAffectedResources(allRemainingURIs, this, newState, changedDeltas, allDeltas, buildData, subProgress.split(1));
            installSourceLevelURIs(buildData);
            if (queue.size() > 0) {
                loadOperation = crossLinkingResourceLoader.create(resourceSet, currentProject);
                loadOperation.load(queue);
            }
            // Release memory
            if (!queue.isEmpty() && !clusteringPolicy.continueProcessing(resourceSet, null, clusterIndex))
                clearResourceSet(resourceSet);
        }
    } finally {
        if (loadOperation != null)
            loadOperation.cancel();
        if (!progress.isCanceled())
            progress.done();
    }
    return allDeltas;
}