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

Introduction

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

Prototype

public static int size(Iterator<?> iterator)

Source Link

Document

Returns the number of elements remaining in iterator .

Usage

From source file:qdg.contrib.ClosenessCentrality.java

public ClosenessCentrality(DiGraph g) {
    this(g, g.<Double>createNodeMap(), (double) Iterators.size(g.getNodeIterator()));
}

From source file:sg.atom.utils._beta.functional.Utils.java

/**
 * Create a Map from iterables of keys and values. Will throw an exception
 * if there are more keys than values, or more values than keys.
 *///  w ww.  jav  a 2  s  .  c  o  m
public static <K, V> Map<K, V> zipMap(Iterable<K> keys, Iterable<V> values) {
    Map<K, V> retVal = new LinkedHashMap<K, V>();

    Iterator<K> keysIter = keys.iterator();
    Iterator<V> valsIter = values.iterator();

    while (keysIter.hasNext()) {
        final K key = keysIter.next();

        Preconditions.checkArgument(valsIter.hasNext(),
                "number of values[%s] less than number of keys, broke on key[%s]", retVal.size(), key);

        retVal.put(key, valsIter.next());
    }

    Preconditions.checkArgument(!valsIter.hasNext(), "number of values[%s] exceeds number of keys[%s]",
            retVal.size() + Iterators.size(valsIter), retVal.size());

    return retVal;
}

From source file:org.apache.accumulo.test.functional.FunctionalTestUtils.java

public static int countRFiles(Connector c, String tableName) throws Exception {
    Scanner scanner = c.createScanner(MetadataTable.NAME, Authorizations.EMPTY);
    String tableId = c.tableOperations().tableIdMap().get(tableName);
    scanner.setRange(MetadataSchema.TabletsSection.getRange(tableId));
    scanner.fetchColumnFamily(MetadataSchema.TabletsSection.DataFileColumnFamily.NAME);

    return Iterators.size(scanner.iterator());
}

From source file:eu.numberfour.n4js.ui.export.nfar.NFARExportOperation.java

private int countSelectedResources() {
    int result = 1; // manifest
    for (IN4JSSourceContainer container : project.getSourceContainers()) {
        int numberOfURIs = Iterators.size(container.iterator());
        numberOfURIs *= 2; // compiled variants
        result += numberOfURIs;/*  ww w.j a va2 s.  c  o  m*/
    }
    return result;
}

From source file:org.elasticsearch.rest.action.main.RestMainAction.java

@Inject
public RestMainAction(Settings settings, Client client, RestController controller) {
    super(settings, client);
    JsonNode rootNode;//from   www  . j a v a  2s . c o m
    int quotesSize;
    try {
        rootNode = Jackson.defaultObjectMapper().readValue(Classes.getDefaultClassLoader()
                .getResourceAsStream("org/elasticsearch/rest/action/main/quotes.json"), JsonNode.class);
        ArrayNode arrayNode = (ArrayNode) rootNode.get("quotes");
        quotesSize = Iterators.size(arrayNode.getElements());
    } catch (Exception e) {
        rootNode = null;
        quotesSize = -1;
    }
    this.rootNode = rootNode;
    this.quotesSize = quotesSize;

    controller.registerHandler(GET, "/", this);
}

From source file:com.replaymod.replaystudio.studio.StudioReplayPartView.java

@Override
public int size() {
    return Iterators.size(iterator());
}

From source file:org.commoncrawl.mapred.pipelineV3.domainmeta.DomainURLCounter.java

@Override
public void reduce(TextBytes key, Iterator<IntWritable> values, OutputCollector<TextBytes, IntWritable> output,
        Reporter reporter) throws IOException {
    int count = Iterators.size(values);
    output.collect(key, new IntWritable(count));
}

From source file:com.ibm.vicos.common.crypto.CryptoUtils.java

public String hash(final Iterable<? extends Serializable> of) {
    checkNotNull(of, "of");
    if (Iterators.size(of.iterator()) > 0) {
        Hasher hasher = getHashFunction().newHasher();
        for (Object obj : of) {
            hasher.putString(obj.toString(), Charsets.UTF_8);
        }//  w w w .  ja va 2  s  .  co  m
        return hasher.hash().toString();
    } else {
        return NULL_HASH;
    }
}

From source file:com.facebook.presto.operator.ValuesOperator.java

@Override
public void finish() {
    Iterators.size(pages);
}

From source file:appeng.integration.modules.waila.part.P2PStateWailaDataProvider.java

private static int getOutputCount(PartP2PTunnel tunnel) {
    try {/*  w w  w  . j ava2  s  .co  m*/
        return Iterators.size(tunnel.getOutputs().iterator());
    } catch (GridAccessException e) {
        // Well... unknown size it is!
        return 0;
    }
}