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

List of usage examples for com.google.common.collect Iterables size

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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:com.nesscomputing.sequencer.HashSequencer.java

/**
 * Create a new HashSequencer with the elements of an array.
 *///www  .j a  va2 s .c o m
public static <K> HashSequencer<K> copyOf(Iterable<K> elements) {
    return new HashSequencer<>(Iterables.size(elements), elements);
}

From source file:com.github.msoliter.iroh.container.exceptions.UnexpectedImplementationCountException.java

/**
 * Constructs an exception detailing exactly the implementations identified
 * for a particular type.//from   w  w  w.  ja  va 2s.  c  o m
 * 
 * @param type The type we were attempting to resolve.
 * @param implementations A collection of all the implementing types. The
 *  size of the collection should be zero or greater than one.
 */
public UnexpectedImplementationCountException(Class<?> type, Iterable<Class<?>> implementations) {

    super((Iterables.size(implementations) == 0) ? String.format(zeroImplementationsFormat, type)
            : String.format(multipleImplementationsFormat, type, Iterables.size(implementations),
                    Joiner.on(", ").join(implementations)));
}

From source file:msi.gaml.expressions.MapExpression.java

MapExpression(final Iterable<? extends IExpression> pairs) {
    final int size = Iterables.size(pairs);
    keys = new IExpression[size];
    vals = new IExpression[size];
    int i = 0;// ww  w.j a  va  2  s  . c o m
    for (final IExpression e : pairs) {
        if (e instanceof BinaryOperator) {
            final BinaryOperator pair = (BinaryOperator) e;
            keys[i] = pair.exprs[0];
            vals[i] = pair.exprs[1];
        } else if (e instanceof ConstantExpression && e.getGamlType().getGamlType() == Types.PAIR) {
            final GamaPair pair = (GamaPair) e.getConstValue();
            final Object left = pair.key;
            final Object right = pair.value;
            keys[i] = GAML.getExpressionFactory().createConst(left, e.getGamlType().getKeyType());
            vals[i] = GAML.getExpressionFactory().createConst(right, e.getGamlType().getContentType());
        }
        i++;
    }
    final IType keyType = GamaType.findCommonType(keys, GamaType.TYPE);
    final IType contentsType = GamaType.findCommonType(vals, GamaType.TYPE);
    // values = GamaMapFactory.create(keyType, contentsType, keys.length);
    // setName(pairs.toString());
    type = Types.MAP.of(keyType, contentsType);
}

From source file:com.b2international.index.revision.DefaultRevisionSearcher.java

@Override
public <T extends Revision> Iterable<T> get(Class<T> type, Iterable<Long> storageKeys) throws IOException {
    if (Iterables.isEmpty(storageKeys)) {
        return Collections.emptySet();
    } else {//from  w  w w.j  a v a 2s.com
        final Query<T> query = Query.select(type)
                .where(Expressions.matchAnyLong(Revision.STORAGE_KEY, storageKeys))
                .limit(Iterables.size(storageKeys)).build();
        return search(query);
    }
}

From source file:com.eucalyptus.cloudwatch.common.CloudWatchResourceName.java

public static CloudWatchResourceName parse(final String resourceName, @Nullable final Type type)
        throws InvalidResourceNameException {
    if (!resourceName.startsWith(prefix)) {
        throw new InvalidResourceNameException(resourceName);
    }// w  ww. j  a va  2 s.com

    final Iterable<String> nameParts = nameSpliter.split(resourceName);
    final int namePartCount = Iterables.size(nameParts);
    if (namePartCount < MIN_PARTS || namePartCount > MAX_PARTS) {
        throw new InvalidResourceNameException(resourceName);
    }

    if (!"cloudwatch".equals(Iterables.get(nameParts, PART_SERVICE))) {
        throw new InvalidResourceNameException(resourceName);
    }

    if (type != null && !type.name().equals(Iterables.get(nameParts, PART_RELATIVE_ID_TYPE))) {
        throw new InvalidResourceNameException(resourceName);
    }

    return new CloudWatchResourceName(resourceName, Iterables.get(nameParts, PART_SERVICE),
            Iterables.get(nameParts, PART_NAMESPACE), Iterables.get(nameParts, PART_RELATIVE_ID_TYPE),
            Iterables.get(nameParts, PART_RELATIVE_NAME));
}

From source file:com.eucalyptus.auth.principal.SecurityTokenContentImpl.java

public SecurityTokenContentImpl(final Optional<String> originatingAccessKeyId,
        final Optional<String> originatingUserId, final Optional<String> originatingRoleId, final String nonce,
        final long created, final long expires) {
    Parameters.checkParam("originatingAccessKeyId", originatingAccessKeyId, notNullValue());
    Parameters.checkParam("originatingUserId", originatingUserId, notNullValue());
    Parameters.checkParam("originatingRoleId", originatingRoleId, notNullValue());
    Parameters.checkParam("nonce", nonce, not(isEmptyOrNullString()));
    if (Iterables.size(Optional.presentInstances(
            Arrays.asList(originatingAccessKeyId, originatingUserId, originatingRoleId))) != 1) {
        throw new IllegalArgumentException("One originating identifier expected");
    }//from  w  ww. j av a 2s .com
    this.originatingAccessKeyId = originatingAccessKeyId;
    this.originatingUserId = originatingUserId;
    this.originatingRoleId = originatingRoleId;
    this.nonce = nonce;
    this.created = created;
    this.expires = expires;
}

From source file:org.apache.mahout.utils.vectors.VectorHelper.java

public static List<Pair<Integer, Double>> topEntries(Vector vector, int maxEntries) {

    // Get the size of nonZero elements in the input vector
    int sizeOfNonZeroElementsInVector = Iterables.size(vector.nonZeroes());

    // If the sizeOfNonZeroElementsInVector < maxEntries then set maxEntries = sizeOfNonZeroElementsInVector
    // otherwise the call to queue.pop() returns a Pair(null, null) and the subsequent call
    // to pair.getFirst() throws a NullPointerException
    if (sizeOfNonZeroElementsInVector < maxEntries) {
        maxEntries = sizeOfNonZeroElementsInVector;
    }/*  w ww .  j a  v a2s .  com*/

    PriorityQueue<Pair<Integer, Double>> queue = new TDoublePQ<Integer>(-1, maxEntries);
    for (Element e : vector.nonZeroes()) {
        queue.insertWithOverflow(Pair.of(e.index(), e.get()));
    }
    List<Pair<Integer, Double>> entries = Lists.newArrayList();
    Pair<Integer, Double> pair;
    while ((pair = queue.pop()) != null) {
        if (pair.getFirst() > -1) {
            entries.add(pair);
        }
    }
    Collections.sort(entries, new Comparator<Pair<Integer, Double>>() {
        @Override
        public int compare(Pair<Integer, Double> a, Pair<Integer, Double> b) {
            return b.getSecond().compareTo(a.getSecond());
        }
    });
    return entries;
}

From source file:org.jclouds.trmk.vcloud_0_8.suppliers.OnlyReferenceTypeFirstWithNameMatchingConfigurationKeyOrDefault.java

@Override
public ReferenceType apply(Iterable<ReferenceType> referenceTypes) {
    checkNotNull(referenceTypes, "referenceTypes");
    checkArgument(Iterables.size(referenceTypes) > 0,
            "No referenceTypes corresponding to configuration key %s present", configurationKey);
    if (Iterables.size(referenceTypes) == 1)
        return Iterables.getLast(referenceTypes);
    String namingPattern = valueOfConfigurationKeyOrNull.apply(configurationKey);
    if (namingPattern != null) {
        return findReferenceTypeWithNameMatchingPattern(referenceTypes, namingPattern);
    } else {//from ww  w  .  j ava 2  s .  com
        return defaultReferenceType(referenceTypes);
    }
}

From source file:org.apache.giraph.graph.IntIntNullIntVertex.java

@Override
public void initialize(IntWritable vertexId, IntWritable vertexValue, Map<IntWritable, NullWritable> edges,
        Iterable<IntWritable> messages) {
    id = vertexId.get();//from   w w  w.  jav a  2 s .  c  om
    value = vertexValue.get();
    this.neighbors = new int[(edges != null) ? edges.size() : 0];
    int n = 0;
    if (edges != null) {
        for (IntWritable neighbor : edges.keySet()) {
            this.neighbors[n++] = neighbor.get();
        }
    }
    this.messages = new int[(messages != null) ? Iterables.size(messages) : 0];
    if (messages != null) {
        n = 0;
        for (IntWritable message : messages) {
            this.messages[n++] = message.get();
        }
    }
}

From source file:com.google.errorprone.bugpatterns.testdata.SizeGreaterThanOrEqualsZeroPositiveCases.java

public boolean collectionSize() {

    // BUG: Diagnostic contains: !intList.isEmpty()
    boolean foo = intList.size() >= 0;

    // BUG: Diagnostic contains: !intSet.isEmpty()
    foo = intSet.size() >= 0;//from  w  w  w.ja  v a  2 s  .c  o m

    // BUG: Diagnostic contains: !intSet.isEmpty()
    foo = 0 <= intSet.size();

    // BUG: Diagnostic contains: !intMap.isEmpty()
    foo = intMap.size() >= 0;

    // BUG: Diagnostic contains: !intCollection.isEmpty()
    foo = intCollection.size() >= 0;

    // Yes, that works as java code
    // BUG: Diagnostic contains: !new ArrayList<Integer>().isEmpty()
    if (new ArrayList<Integer>().size() >= 0) {
    }

    CollectionContainer baz = new CollectionContainer();

    // BUG: Diagnostic contains: !baz.intList.isEmpty()
    if (baz.intList.size() >= 0) {
    }

    // BUG: Diagnostic contains: !baz.getIntList().isEmpty()
    if (baz.getIntList().size() >= 0) {
    }

    // BUG: Diagnostic contains: !Iterables.isEmpty(baz.getIntList())
    foo = Iterables.size(baz.getIntList()) >= 0;

    return foo;
}