Example usage for com.google.common.collect Iterables isEmpty

Introduction

In this page you can find the example usage for com.google.common.collect Iterables isEmpty.

Prototype

public static boolean isEmpty(Iterable<?> iterable)

Source Link

Document

Determines if the given iterable contains no elements.

Usage

From source file:org.eclipse.sirius.ui.tools.internal.views.common.navigator.OpenRepresentationListener.java

/**
 * {@inheritDoc}//from w ww .j  a  v  a2 s  .  c o  m
 * @see org.eclipse.jface.viewers.IDoubleClickListener#doubleClick(org.eclipse.jface.viewers.DoubleClickEvent)
 */
public void doubleClick(final DoubleClickEvent event) {
    if (event != null && event.getSelection() instanceof IStructuredSelection) {
        List<?> selection = ((IStructuredSelection) event.getSelection()).toList();
        Iterable<DRepresentation> representationToOpen = getRepresentationsToOpen(selection);
        if (!Iterables.isEmpty(representationToOpen)) {
            new OpenRepresentationsAction(Sets.newLinkedHashSet(representationToOpen)).run();
        }
    }
}

From source file:com.groupon.jenkins.dynamic.build.GithubChangeLogSet.java

@Override
public boolean isEmptySet() {
    return logEntries == null || Iterables.isEmpty(logEntries);
}

From source file:com.spectralogic.ds3cli.views.cli.DetailedObjectsView.java

@Override
public String render(final GetDetailedObjectsResult obj) {
    final Iterable<DetailedS3Object> detailedS3Objects = obj.getResult();
    if (detailedS3Objects == null || Iterables.isEmpty(detailedS3Objects)) {
        return "No objects returned";
    }/*from  www  . j  a  v a 2s . c o m*/

    objects = ImmutableList.copyOf(detailedS3Objects);
    initTable(ImmutableList.of("Name", "Bucket", "Owner", "Size", "Type", "Creation Date", "Tapes", "Pools"));

    return renderTable();
}

From source file:com.palantir.atlasdb.keyvalue.api.ColumnSelection.java

public static ColumnSelection create(Iterable<byte[]> selectedColumns) {
    if (Iterables.isEmpty(Preconditions.checkNotNull(selectedColumns))) {
        return allColumnsSelected;
    }//w  w  w. j a  v  a2s  .c  om

    // Copy contents of 'selectedColumns' into a new set with proper deep comparison semantics.
    return new ColumnSelection(
            ImmutableSortedSet.copyOf(UnsignedBytes.lexicographicalComparator(), selectedColumns));
}

From source file:org.apache.brooklyn.util.exceptions.CompoundRuntimeException.java

public CompoundRuntimeException(String message, Iterable<? extends Throwable> causes) {
    this(message, (Iterables.isEmpty(causes) ? null : Iterables.get(causes, 0)), causes);
}

From source file:org.tensorics.core.iterable.lang.QuantityIterableSupport.java

public final QuantifiedValue<V> averageOf(Iterable<QuantifiedValue<V>> values) {
    if (Iterables.isEmpty(values)) {
        throw new IllegalArgumentException("Averaging of empty value set is not possible.");
    }//from w w  w. jav  a2 s  . c o  m
    return calculate(sumOf(values)).dividedBy(sizeOf(values));
}

From source file:com.synflow.ngDesign.ui.internal.navigator.CxLabelDecorator.java

@Override
public void decorate(Object element, IDecoration decoration) {
    if (element instanceof IFile) {
        IFile file = (IFile) element;/*from   w  w  w.  jav  a 2s. c  o m*/
        if (FILE_EXT_CX.equals(file.getFileExtension())) {
            Module module = getEObject(file, Module.class);
            if (module != null) {
                Iterable<Network> networks = Iterables.filter(module.getEntities(), Network.class);
                if (!Iterables.isEmpty(networks)) {
                    ImageDescriptor descriptor = CxActivator.imageDescriptorFromPlugin("com.synflow.cx.ui",
                            "icons/overlay_network.png");
                    decoration.addOverlay(descriptor);
                }
            }
        }
    }
}

From source file:org.polarsys.reqcycle.utils.iterators.collectors.WidthHarvester.java

/**
 * Width wise collection.//from w  w w.  ja v a2  s.c  o m
 * 
 * @param handler
 *            the handler that processes each element.
 * @param element
 *            : the element from which the collection is performed.
 * @throws CollectionAbortedException
 */
protected void collectWidthWise(ResultHandler<Object> handler, Object element)
        throws CollectionAbortedException {
    Iterable<?> currentLayer = Collections.singletonList(element);
    Iterable<?> nextLayer = Collections.EMPTY_LIST;
    while (currentLayer != null && !Iterables.isEmpty(currentLayer)) {
        for (Object currentElement : currentLayer) {
            try {
                handler.handleResult(currentElement);
                // Building the next layer.
                for (IPicker picker : this.getPickers()) {
                    Iterable<?> nexts = picker.getNexts(currentElement); // getting children.
                    if (nexts != null) {
                        nextLayer = Iterables.concat(nextLayer, nexts);
                    }
                }
            } catch (CannotHandleException e) {
                // do nothing
            } catch (Exception e) {
                Activator.logError(e);
            }
        }
        // The current layer has been processed. Going through the next one.
        currentLayer = nextLayer;
        nextLayer = Collections.EMPTY_LIST;
    }
}

From source file:com.spectralogic.ds3cli.views.cli.DetailedObjectsPhysicalView.java

@Override
public String render(final GetDetailedObjectsResult obj) {
    final Iterable<DetailedS3Object> detailedS3Objects = obj.getResult();
    if (detailedS3Objects == null || Iterables.isEmpty(detailedS3Objects)) {
        return "No objects returned";
    }/*from w ww .jav a2 s  .co  m*/

    objects = detailedS3Objects;
    initTable(ImmutableList.of("Name", "Bucket", "Owner", "Size", "Type", "Creation Date", "Barcode", "State"));

    return renderTable();
}

From source file:com.google.gerrit.server.query.change.FuzzyTopicPredicate.java

@Override
public boolean match(final ChangeData cd) throws OrmException {
    Change change = cd.change();/*ww  w .j  av a 2 s .  c  o  m*/
    if (change == null) {
        return false;
    }
    String t = change.getTopic();
    if (t == null) {
        return false;
    }
    try {
        Predicate<ChangeData> thisId = new LegacyChangeIdPredicate(cd.getId());
        Iterable<ChangeData> results = index.getSource(and(thisId, this), IndexedChangeQuery.oneResult())
                .read();
        return !Iterables.isEmpty(results);
    } catch (QueryParseException e) {
        throw new OrmException(e);
    }
}