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

Introduction

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

Prototype

public static int size(Iterable<?> iterable)

Source Link

Document

Returns the number of elements in iterable .

Usage

From source file:org.apache.mahout.clustering.streaming.tools.ResplitSequenceFiles.java

private void run(PrintWriter printWriter) throws IOException {
    conf = new Configuration();
    SequenceFileDirIterable<Writable, Writable> inputIterable = new SequenceFileDirIterable<Writable, Writable>(
            new Path(inputFile), PathType.LIST, conf);
    fs = FileSystem.get(conf);/*  ww  w .ja va2s  .co  m*/

    int numEntries = Iterables.size(inputIterable);
    int numEntriesPerSplit = numEntries / numSplits;
    int numEntriesLastSplit = numEntriesPerSplit + numEntries - numEntriesPerSplit * numSplits;
    Iterator<Pair<Writable, Writable>> inputIterator = inputIterable.iterator();

    printWriter.printf("Writing %d splits\n", numSplits);
    for (int i = 0; i < numSplits - 1; ++i) {
        printWriter.printf("Writing split %d\n", i);
        writeSplit(inputIterator, i, numEntriesPerSplit);
    }
    printWriter.printf("Writing split %d\n", numSplits - 1);
    writeSplit(inputIterator, numSplits - 1, numEntriesLastSplit);
}

From source file:org.richfaces.component.DeclarativeTreeDataModelWalker.java

private void setupDataModelContext(Object key) {
    if (modelData instanceof Iterable<?>) {
        Iterable<?> iterable = (Iterable<?>) modelData;
        Integer index = (Integer) key;

        if (index < Iterables.size(iterable)) {
            data = Iterables.get(iterable, index);
        } else {/*from www  .j  a  v  a2 s.c  o  m*/
            data = null;
        }
    } else {
        data = ((Map<?, ?>) modelData).get(key);
    }
}

From source file:com.lyndir.lanterna.view.TextView.java

public void setText(final String text) {
    this.text = text;

    // Update offset in case text lines shrank beyond the current offset.
    textOffset = Math.min(textOffset, Iterables.size(getTextLines()));
}

From source file:org.thiesen.collections.set.impl.AbstractDelegatingImmutableSet.java

@Override
public boolean hasSingleValueOnly() {
    return Iterables.size(_set) == 1;
}

From source file:io.druid.indexing.common.task.MergeTaskBase.java

protected MergeTaskBase(final String id, final String dataSource, final List<DataSegment> segments,
        Map<String, Object> context) {
    super(/*from   w  w w. ja va2  s  . c o m*/
            // _not_ the version, just something uniqueish
            id != null ? id
                    : String.format("merge_%s_%s", computeProcessingID(dataSource, segments),
                            new DateTime().toString()),
            dataSource, computeMergedInterval(segments), context);

    // Verify segment list is nonempty
    Preconditions.checkArgument(segments.size() > 0, "segments nonempty");
    // Verify segments are all in the correct datasource
    Preconditions.checkArgument(Iterables.size(Iterables.filter(segments, new Predicate<DataSegment>() {
        @Override
        public boolean apply(@Nullable DataSegment segment) {
            return segment == null || !segment.getDataSource().equalsIgnoreCase(dataSource);
        }
    })) == 0, "segments in the wrong datasource");
    // Verify segments are all unsharded
    Preconditions.checkArgument(Iterables.size(Iterables.filter(segments, new Predicate<DataSegment>() {
        @Override
        public boolean apply(@Nullable DataSegment segment) {
            return segment == null || !(segment.getShardSpec() instanceof NoneShardSpec);
        }
    })) == 0, "segments without NoneShardSpec");

    this.segments = segments;
}

From source file:org.jclouds.scriptbuilder.domain.AppendFile.java

protected AppendFile(String path, Iterable<String> lines, String delimiter, boolean expandVariables) {
    this.path = checkNotNull(path, "PATH");
    this.lines = checkNotNull(lines, "lines");
    this.delimiter = checkNotNull(delimiter, "delimiter");
    checkState(Iterables.size(lines) > 0, "you must pass something to execute");
    this.expandVariables = expandVariables;
}

From source file:com.google.javascript.rhino.testing.Asserts.java

public static <T extends JSType, S extends JSType> void assertTypeCollectionEquals(Iterable<T> a,
        Iterable<S> b) {/*from  w  w  w.j a va  2s  .  c om*/
    assertThat(b).hasSize(Iterables.size(a));
    Iterator<T> aIterator = a.iterator();
    Iterator<S> bIterator = b.iterator();
    while (aIterator.hasNext()) {
        assertTypeEquals(aIterator.next(), bIterator.next());
    }
}

From source file:org.apache.mahout.math.neighborhood.Searcher.java

public List<List<WeightedThing<Vector>>> search(Iterable<? extends Vector> queries, int limit) {
    List<List<WeightedThing<Vector>>> results = Lists.newArrayListWithExpectedSize(Iterables.size(queries));
    for (Vector query : queries) {
        results.add(search(query, limit));
    }/*from w  w  w  .j a  va  2s.  c  om*/
    return results;
}

From source file:org.jclouds.cloudstack.functions.CreatePortForwardingRulesForIP.java

public Set<IPForwardingRule> apply(PublicIPAddress ip, String protocol, Iterable<Integer> ports) {
    checkState(ip.getVirtualMachineId() != null,
            "ip %s should be static NATed to a virtual machine before applying rules", ip);
    if (Iterables.size(ports) == 0)
        return ImmutableSet.<IPForwardingRule>of();
    Builder<AsyncCreateResponse> responses = ImmutableSet.builder();
    for (int port : ports) {
        AsyncCreateResponse response = client.getNATClient().createIPForwardingRule(ip.getId(), protocol, port);
        logger.debug(">> creating IP forwarding rule IPAddress(%s) for protocol(%s), port(%s); response(%s)",
                ip.getId(), protocol, port, response);
        responses.add(response);/*from   www. j  av a  2 s  .  co  m*/
    }
    Builder<IPForwardingRule> rules = ImmutableSet.builder();
    for (AsyncCreateResponse response : responses.build()) {
        IPForwardingRule rule = blockUntilJobCompletesAndReturnResult.<IPForwardingRule>apply(response);
        rules.add(rule);
        getIPForwardingRulesByVirtualMachine.asMap().put(ip.getVirtualMachineId(), ImmutableSet.of(rule));
    }
    return rules.build();
}

From source file:com.google.devtools.build.lib.actions.ArtifactIdRegistry.java

@Override
public ImmutableList<Artifact> lookupArtifactsByIds(Iterable<Integer> artifactIds) {
    int size = Iterables.size(artifactIds);
    Artifact[] result = new Artifact[size];

    int i = 0;/*from   w  ww  .  j  av  a  2 s  .c  om*/

    artifactIdsLock.readLock().lock();
    try {
        for (int artifactId : artifactIds) {
            result[i] = serializedArtifactList.get(artifactId);
            i++;
        }
    } finally {
        artifactIdsLock.readLock().unlock();
    }

    return ImmutableList.copyOf(result);
}