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.grouplens.lenskit.collections.RemovableLongSortedArraySet.java

@Override
public boolean removeAll(Collection<?> c) {
    if (c instanceof LongCollection) {
        return removeAll((LongCollection) c);
    } else {/*from   w  w w.  j av  a 2  s .co m*/
        long[] longs = LongIterators
                .unwrap(LongIterators.asLongIterator(Iterators.filter(c.iterator(), Long.class)));
        Arrays.sort(longs);
        return removeAll(LongArrayList.wrap(longs).iterator());
    }
}

From source file:org.apache.druid.timeline.partition.PartitionHolder.java

public PartitionChunk<T> getChunk(final int partitionNum) {
    final Iterator<PartitionChunk<T>> retVal = Iterators.filter(holderSet.iterator(),
            input -> input.getChunkNumber() == partitionNum);

    return retVal.hasNext() ? retVal.next() : null;
}

From source file:nz.ac.massey.cs.guery.adapters.blueprints.BlueprintsAdapter.java

@Override
public Iterator<Edge> getOutEdges(Vertex vertex, Predicate<? super Edge> filter) {
    return Iterators.filter(this.getOutEdges(vertex), filter);
}

From source file:org.fcrepo.kernel.impl.rdf.impl.LdpContainerRdfContext.java

/**
 * Default constructor./*from w  w w  .j  a  v  a  2  s.  c  o m*/
 *
 * @param resource the resource
 * @param idTranslator the id translator
 * @throws javax.jcr.RepositoryException if repository exception occurred
 */
public LdpContainerRdfContext(final FedoraResource resource,
        final IdentifierConverter<Resource, FedoraResource> idTranslator) throws RepositoryException {
    super(resource, idTranslator);
    final Iterator<Property> memberReferences = resource.getNode().getReferences(LDP_MEMBER_RESOURCE);
    final Iterator<Property> properties = Iterators.filter(memberReferences, isContainer);

    if (properties.hasNext()) {
        LOGGER.trace("Found membership containers for {}", resource);
        concat(membershipContext(properties));
    }
}

From source file:org.jnario.jnario.test.util.ModelStore.java

public Iterator<EObject> iterator() {
    return Iterators.filter(resourceSet.getAllContents(), EObject.class);
}

From source file:org.eclipse.incquery.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   w  w  w .j  a v  a  2  s .c o m
        return !missingNameFound || getGenmodelRegistry().findGenPackage(ePackage.getNsURI(), set) != null;
    } else {
        return false;
    }
}

From source file:org.akubraproject.map.IdMappingBlobStoreConnection.java

@Override
public Iterator<URI> listBlobIds(final String filterPrefix) throws IOException {
    // list the appropriate internal ids
    String intPrefix = null;/*w  w  w  . j  a v a2s.  c  om*/
    Iterator<URI> intIterator;
    if (filterPrefix == null) {
        intIterator = delegate.listBlobIds(null);
    } else {
        intPrefix = mapper.getInternalPrefix(filterPrefix);
        intIterator = delegate.listBlobIds(intPrefix);
    }

    // transform internal ids to external form on the way out
    Iterator<URI> extIterator = Iterators.transform(intIterator, new Function<URI, URI>() {
        public URI apply(URI uri) {
            return mapper.getExternalId(uri);
        }
    });

    if (filterPrefix != null && intPrefix == null) {
        // also need to post-filter
        return Iterators.filter(extIterator, new Predicate<URI>() {
            public boolean apply(URI uri) {
                return uri.toString().startsWith(filterPrefix);
            }
        });
    } else {
        // no need to filter
        return extIterator;
    }
}

From source file:com.metamx.druid.partition.PartitionHolder.java

public PartitionChunk<T> getChunk(final int partitionNum) {
    final Iterator<PartitionChunk<T>> retVal = Iterators.filter(holderSet.iterator(),
            new Predicate<PartitionChunk<T>>() {
                @Override// ww  w  .  jav  a  2s  . c  o  m
                public boolean apply(PartitionChunk<T> input) {
                    return input.getChunkNumber() == partitionNum;
                }
            });

    return retVal.hasNext() ? retVal.next() : null;
}

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

/**
 * Default constructor./*from   w w  w .  j a va2s.c  o m*/
 *
 * @param resource the resource
 * @param idTranslator the id translator
 * @throws javax.jcr.RepositoryException if repository exception occurred
 */
public LdpContainerRdfContext(final FedoraResource resource,
        final IdentifierConverter<Resource, FedoraResource> idTranslator) throws RepositoryException {
    super(resource, idTranslator);
    @SuppressWarnings("unchecked")
    final Iterator<Property> memberReferences = resource.getNode().getReferences(LDP_MEMBER_RESOURCE);
    final Iterator<Property> properties = Iterators.filter(memberReferences,
            UncheckedPredicate.uncheck((final Property p) -> {
                final Node container = p.getParent();
                return container.isNodeType(LDP_DIRECT_CONTAINER)
                        || container.isNodeType(LDP_INDIRECT_CONTAINER);
            })::test);

    if (properties.hasNext()) {
        LOGGER.trace("Found membership containers for {}", resource);
        concat(membershipContext(properties));
    }
}

From source file:org.eclipse.sirius.ecore.extender.tool.internal.ReferencesResolver.java

private void resolveCrossReferences(EObject eObject) {
    Iterator<EReference> it = Iterators.filter(eObject.eClass().getEAllReferences().iterator(), filter);
    while (it.hasNext()) {
        eObject.eGet(it.next());/*from   w w w  . ja  v  a 2s.c o m*/
    }
}