Example usage for com.google.common.collect Iterators filter

Introduction

In this page you can find the example usage for com.google.common.collect Iterators filter.

Prototype

@SuppressWarnings("unchecked") 
@GwtIncompatible("Class.isInstance")
@CheckReturnValue
public static <T> UnmodifiableIterator<T> filter(Iterator<?> unfiltered, Class<T> desiredType)

Source Link

Document

Returns all elements in unfiltered that are of the type desiredType .

Usage

From source file:org.eclipse.sirius.tree.business.internal.migration.description.InitializeCreationToolElementsToSelectExpressionParticipant.java

@Override
protected void postLoad(Group group, Version loadedVersion) {
    if (loadedVersion.compareTo(MIGRATION_VERSION) < 0) {
        EList<Viewpoint> ownedViewpoints = group.getOwnedViewpoints();
        for (Viewpoint viewpoint : ownedViewpoints) {
            boolean atLeastOneChange = false;
            for (TreeDescription treeDescription : Iterables.filter(viewpoint.getOwnedRepresentations(),
                    TreeDescription.class)) {
                Iterator<EObject> creationTools = Iterators.filter(treeDescription.eAllContents(),
                        Predicates.or(//from  w  w  w  .  j a  v  a  2  s.c o m
                                Predicates.or(Predicates.instanceOf(TreeItemContainerDropTool.class),
                                        Predicates.instanceOf(TreeItemDragTool.class)),
                                Predicates.instanceOf(TreeItemCreationTool.class)));
                while (creationTools.hasNext()) {
                    AbstractToolDescription tool = (AbstractToolDescription) creationTools.next();
                    if (StringUtil.isEmpty(tool.getElementsToSelect())) {
                        tool.setElementsToSelect(ELEMENTS_TO_SELECT_EXPRESSION);
                        atLeastOneChange = true;
                    }
                }
            }

            if (atLeastOneChange) {
                // Add the Java Extension to use the service:
                if (!Iterables.any(viewpoint.getOwnedJavaExtensions(), new Predicate<JavaExtension>() {
                    @Override
                    public boolean apply(JavaExtension input) {
                        return JAVA_EXTENSION_QUALIFIED_NAME.equals(input.getQualifiedClassName());
                    }
                })) {
                    JavaExtension javaExtension = DescriptionFactory.eINSTANCE.createJavaExtension();
                    javaExtension.setQualifiedClassName(JAVA_EXTENSION_QUALIFIED_NAME);
                    viewpoint.getOwnedJavaExtensions().add(javaExtension);
                }
            }
        }
    }
}

From source file:org.eclipse.sirius.diagram.sequence.business.internal.query.SequenceDiagramDescriptionQuery.java

/**
 * return any {@link EndOfLifeMapping} contained in the diagram having the
 * given name.//from   w  ww . j a  va  2  s.c  om
 * 
 * @param name
 *            name of the searched element.
 * @return any EndOfLifeMapping contained in the diagram having the given
 *         name.
 */
public Iterator<EndOfLifeMapping> getEndOfLifeMappings(final String name) {
    return Iterators.filter(Iterators.filter(diag.eAllContents(), EndOfLifeMapping.class),
            new Predicate<EndOfLifeMapping>() {

                public boolean apply(EndOfLifeMapping input) {
                    return name.equals(input.getName());
                }

            });
}

From source file:msi.gama.lang.gaml.ui.templates.GamlEditTemplateDialog.java

public GamlEditTemplateDialog(final Shell parent, final TemplatePersistenceData data, final boolean edit,
        final ContextTypeRegistry registry, final TemplatesLanguageConfiguration configuration,
        final IEditedResourceProvider resourceProvider, final String languageName) {
    super(parent);
    this.data = data;
    this.configuration = configuration;
    this.resourceProvider = resourceProvider;
    this.languageName = languageName;

    String title = edit ? TemplateDialogMessages.EditTemplateDialog_title_edit
            : TemplateDialogMessages.EditTemplateDialog_title_new;
    setTitle(title);//from w  w w  .  j av  a 2 s.c o m

    // this.fTemplate = data.getTemplate();
    // fIsNameModifiable = isNameModifiable;

    List<String[]> contexts = Lists.newArrayList();
    for (Iterator<TemplateContextType> it = Iterators.filter(registry.contextTypes(),
            TemplateContextType.class); it.hasNext();) {
        TemplateContextType type = it.next();
        contexts.add(new String[] { type.getId(), type.getName() });
    }
    // fContextTypes = contexts.toArray(new String[contexts.size()][]);
    // fContextTypeRegistry = registry;

}

From source file:org.eclipse.sirius.diagram.ui.tools.internal.actions.pinning.AbstractPinUnpinElementsEclipseAction.java

/**
 * Get current selected diagram elements.
 * // w w  w  .  j  a v a 2s.  c  om
 * @param selection
 *            Selection
 * @return Selected elements.
 */
private Collection<DDiagramElement> getSelectedDiagramElements(final ISelection selection) {
    if (selection instanceof IStructuredSelection) {
        final UnmodifiableIterator<IGraphicalEditPart> iter = Iterators
                .filter(((IStructuredSelection) selection).iterator(), IGraphicalEditPart.class);
        final Collection<DDiagramElement> elements = Lists.newArrayList();
        while (iter.hasNext()) {
            final IGraphicalEditPart part = iter.next();

            if (keepElement(part)) {
                final EObject semanticElement = part.resolveSemanticElement();
                if (semanticElement instanceof DDiagramElement) {
                    elements.add((DDiagramElement) semanticElement);
                }
            }
        }
        return elements;
    }
    return Collections.emptyList();
}

From source file:qdg.view.SubMixedGraph.java

@Override
public Iterator<Edge> getArcIterator() {
    return Iterators.filter(g.getArcIterator(), spanningEdgeFilterPredicate);
}

From source file:org.fcrepo.kernel.modeshape.rdf.impl.ReferencesRdfContext.java

@SuppressWarnings("unchecked")
private void putReferencesIntoContext(final Node node) throws RepositoryException {
    Iterator<Property> references = node.getReferences();
    Iterator<Property> weakReferences = node.getWeakReferences();
    Iterator<Property> allReferences = Iterators.concat(references, weakReferences);
    concat(flatMap(allReferences, property2triple));

    references = node.getReferences();//  w  w w  . j  a  v  a  2  s. c o m
    weakReferences = node.getWeakReferences();
    allReferences = Iterators.concat(references, weakReferences);
    concat(Iterators.filter(flatMap(flatMap(allReferences, potentialProxies), triplesForValue), INBOUND::test));
}

From source file:org.eclipse.viatra.query.patternlanguage.emf.scoping.BaseMetamodelProviderService.java

@Override
public boolean isGeneratedCodeAvailable(EPackage ePackage, ResourceSet set) {
    if (getProvidedMetamodels().contains(ePackage.getNsURI())) {
        Iterator<EClassifier> it = Iterators.filter(ePackage.eAllContents(), EClassifier.class);
        boolean missingNameFound = false;
        while (!missingNameFound && it.hasNext()) {
            final String instanceClassName = it.next().getInstanceClassName();
            missingNameFound = Strings.isNullOrEmpty(instanceClassName);
        }/*from  ww w .j a v a 2s . c  om*/
        GenPackage genPackage = getGenmodelRegistry().findGenPackage(ePackage.getNsURI(), set);
        return !missingNameFound || genPackage != null;
    } else {
        return false;
    }
}

From source file:de.cau.cs.kieler.ecoreviz.OpenDiagramHandler.java

/**
 * {@inheritDoc}/*from ww w .  j  a  v  a  2 s. c o m*/
 */
@SuppressWarnings("unchecked")
public Object execute(final ExecutionEvent event) throws ExecutionException {
    final ISelection selection = HandlerUtil.getCurrentSelection(event);

    if (selection instanceof IStructuredSelection) {
        final IStructuredSelection sSelection = (IStructuredSelection) selection;
        final List<EModelElement> listSelection = new LinkedList<EModelElement>();
        if (selection instanceof KlighdTreeSelection) {
            // do not react on selections in KLighD diagrams
            return null;
        }

        // if all elements are either ecore packages or classes
        if (Iterators.all(sSelection.iterator(), EPACKAGE_ECLASS_PREDICATE)) {
            Iterator<EModelElement> emIt = Iterators.filter(sSelection.iterator(), EMODEL_ELEMENT_PREDICATE);
            while (emIt.hasNext()) {
                listSelection.add(emIt.next());
            }
        } else {
            // otherwise check the elements piece by piece for files
            for (Object o : sSelection.toArray()) {
                if (o instanceof IFile) {
                    try {
                        IFile f = (IFile) o;
                        ResourceSet rs = new ResourceSetImpl();
                        Resource r = rs.getResource(
                                URI.createPlatformResourceURI(f.getFullPath().toString(), true), true);
                        if (r.getContents().size() > 0) {
                            if (r.getContents().get(0) instanceof EPackage) {
                                listSelection.add((EModelElement) r.getContents().get(0));
                            }
                        }
                    } catch (Exception e) {
                        StatusManager.getManager().handle(
                                new Status(IStatus.ERROR, PLUGIN_ID, "Could not load selected file.", e),
                                StatusManager.SHOW);
                    }
                } else {
                    handleUnknownSelection(selection);

                    return null;
                }
            }
        }

        EModelElementCollection model = EModelElementCollection.of(listSelection.iterator());

        DiagramViewManager.createView("de.cau.cs.kieler.ecoreviz.EModelElementCollectionDiagram",
                "Ecore Diagram", model, KlighdSynthesisProperties.create());

        return null;
    }

    handleUnknownSelection(selection);

    return null;
}

From source file:org.apache.fluo.core.util.NotificationScanner.java

@Override
public Iterator<RowColumnValue> iterator() {
    Iterator<RowColumnValue> iter = Iterators.transform(scanner.iterator(), entry -> {
        Notification n = Notification.from(entry.getKey());
        return new RowColumnValue(n.getRow(), n.getColumn(), Bytes.of(entry.getValue().get()));
    });/*  ww  w  .  j av  a 2  s.  c  om*/

    return Iterators.filter(iter, rcv -> filter.test(rcv));
}

From source file:org.elasticsearch.index.codec.postingsformat.Elasticsearch090PostingsFormat.java

@Override
public FieldsConsumer fieldsConsumer(SegmentWriteState state) throws IOException {
    final BloomFilteredFieldsConsumer fieldsConsumer = bloomPostings.fieldsConsumer(state);
    return new FieldsConsumer() {

        @Override/*from   ww  w . j a  va2 s. c om*/
        public void write(Fields fields) throws IOException {

            Fields maskedFields = new FilterLeafReader.FilterFields(fields) {
                @Override
                public Iterator<String> iterator() {
                    return Iterators.filter(this.in.iterator(), Predicates.not(UID_FIELD_FILTER));
                }
            };
            fieldsConsumer.getDelegate().write(maskedFields);
            maskedFields = new FilterLeafReader.FilterFields(fields) {
                @Override
                public Iterator<String> iterator() {
                    return Iterators.singletonIterator(UidFieldMapper.NAME);
                }
            };
            // only go through bloom for the UID field
            fieldsConsumer.write(maskedFields);
        }

        @Override
        public void close() throws IOException {
            fieldsConsumer.close();
        }
    };
}