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.chaston.oakfunds.storage.mgmt.SchemaDeploymentTask.java

@Inject
SchemaDeploymentTask(SchemaUpdater schemaUpdater) throws SQLException {
    Iterable<SchemaDiscrepancy> remainingDiscrepancies = schemaUpdater.updateSchema();
    assert Iterables.isEmpty(remainingDiscrepancies);
}

From source file:org.gradle.api.internal.file.collections.ImmutableFileCollection.java

public static ImmutableFileCollection of(Iterable<File> files) {
    if (Iterables.isEmpty(files)) {
        return EMPTY;
    }//from  w  w  w .  j a v  a2  s . co  m
    return new FileOnlyImmutableFileCollection(ImmutableSet.copyOf(files));
}

From source file:org.trancecode.xproc.step.PipelineStepProcessor.java

private static Step addImplicitOutputPort(final Step pipeline) {
    if (Iterables.isEmpty(pipeline.getOutputPorts())) {
        return pipeline
                .declarePort(Port.newOutputPort(pipeline.getName(), XProcPorts.RESULT, pipeline.getLocation()));
    }//from  w ww . ja  va 2  s  .com

    return pipeline;
}

From source file:com.google.errorprone.ErrorPronePlugins.java

public static ScannerSupplier loadPlugins(ScannerSupplier scannerSupplier, Context context) {

    JavaFileManager fileManager = context.get(JavaFileManager.class);
    // Search ANNOTATION_PROCESSOR_PATH if it's available. Unlike in annotation processor
    // discovery, we never search CLASS_PATH.
    if (!fileManager.hasLocation(StandardLocation.ANNOTATION_PROCESSOR_PATH)) {
        return scannerSupplier;
    }/*  ww  w .  ja  v a  2 s .  c  o  m*/
    ClassLoader loader = fileManager.getClassLoader(StandardLocation.ANNOTATION_PROCESSOR_PATH);
    Iterable<BugChecker> extraBugCheckers = ServiceLoader.load(BugChecker.class, loader);
    if (Iterables.isEmpty(extraBugCheckers)) {
        return scannerSupplier;
    }
    return scannerSupplier
            .plus(ScannerSupplier.fromBugCheckerClasses(Iterables.transform(extraBugCheckers, GET_CLASS)));
}

From source file:org.apache.metron.statistics.sampling.SamplerUtil.java

public Sampler merge(Iterable<Sampler> samplers, Optional<Sampler> baseSampler) {
    if (Iterables.isEmpty(samplers)) {
        return null;
    }//from  w w w .j  ava2s.c  om
    Sampler ret = baseSampler.orElse(Iterables.getFirst(samplers, null).cloneEmpty());
    for (Sampler s : samplers) {
        ret.addAll(s.get());
    }
    return ret;
}

From source file:com.google.devtools.build.lib.analysis.AspectCompleteEvent.java

/**
 * Construct a target completion event for a failed target, with the given non-empty root causes.
 *//*from  w w w . j  a  va2s. c om*/
public static AspectCompleteEvent createFailed(AspectValue value, NestedSet<Cause> rootCauses) {
    Preconditions.checkArgument(!Iterables.isEmpty(rootCauses));
    return new AspectCompleteEvent(value, rootCauses);
}

From source file:org.eclipse.xtext.resource.impl.AbstractCompoundSelectable.java

@Override
public boolean isEmpty() {
    return Iterables.isEmpty(getSelectables());
}

From source file:ch.acanda.eclipse.pmd.builder.ViolationProcessor.java

public void annotate(final IFile file, final Iterable<RuleViolation> violations)
        throws CoreException, IOException {
    MarkerUtil.removeAllMarkers(file);/*from  w ww .  j a  va  2s  .c om*/
    if (!Iterables.isEmpty(violations)) {
        final String content = Files.toString(file.getRawLocation().toFile(),
                Charset.forName(file.getCharset()));
        for (final RuleViolation violation : violations) {
            MarkerUtil.addMarker(file, content, violation);
        }
    }
}

From source file:com.google.cloud.dataflow.sdk.testing.StaticWindows.java

public static <W extends BoundedWindow> StaticWindows of(Coder<W> coder, Iterable<W> windows) {
    checkArgument(!Iterables.isEmpty(windows), "Input windows to StaticWindows may not be empty");
    @SuppressWarnings("unchecked")
    StaticWindows windowFn = new StaticWindows(
            WindowSupplier.of((Coder<BoundedWindow>) coder, (Iterable<BoundedWindow>) windows),
            (Coder<BoundedWindow>) coder, false);
    return windowFn;
}

From source file:org.apache.cassandra.db.commitlog.ReplayPosition.java

/**
 * Convenience method to compute the replay position for a group of SSTables.
 * @param sstables//w  w  w . j  a  v  a  2  s  .  co  m
 * @return the most recent (highest) replay position
 */
public static ReplayPosition getReplayPosition(Iterable<? extends SSTable> sstables) {
    if (Iterables.isEmpty(sstables))
        return NONE;

    Function<SSTable, ReplayPosition> f = new Function<SSTable, ReplayPosition>() {
        public ReplayPosition apply(SSTable sstable) {
            return sstable.replayPosition;
        }
    };
    Ordering<ReplayPosition> ordering = Ordering.from(ReplayPosition.comparator);
    return ordering.max(Iterables.transform(sstables, f));
}