Example usage for com.google.common.collect ImmutableMultiset builder

Introduction

In this page you can find the example usage for com.google.common.collect ImmutableMultiset builder.

Prototype

public static <E> Builder<E> builder() 

Source Link

Document

Returns a new builder.

Usage

From source file:org.sonar.db.organization.OrganizationMemberDao.java

public Multiset<String> countByOrganizationUuids(DbSession dbSession, List<String> organizationUuids) {
    ImmutableMultiset.Builder<String> counts = ImmutableMultiset.builder();
    executeLargeInputsWithoutOutput(organizationUuids,
            list -> mapper(dbSession).countByOrganizationUuids(list, result -> {
                OrganizationCount organizationUuidCount = (OrganizationCount) result.getResultObject();
                counts.setCount(organizationUuidCount.getOrganizationUuid(),
                        organizationUuidCount.getMemberCount());
            }));/*from w  w w.  j a v  a  2s  . c o  m*/

    return counts.build();
}

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From source file:org.apache.aurora.scheduler.filter.AttributeAggregate.java

@VisibleForTesting
static AttributeAggregate create(Supplier<Iterable<IAttribute>> attributes) {
    Supplier<Multiset<Pair<String, String>>> aggregator = Suppliers.compose(
            attributes1 -> addAttributes(ImmutableMultiset.builder(), attributes1).build(), attributes);

    return new AttributeAggregate(aggregator);
}

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From source file:org.apache.aurora.scheduler.filter.AttributeAggregate.java

private static ImmutableMultiset.Builder<Pair<String, String>> addAttributes(
        ImmutableMultiset.Builder<Pair<String, String>> builder, Iterable<IAttribute> attributes) {

    for (IAttribute attribute : attributes) {
        for (String value : attribute.getValues()) {
            builder.add(Pair.of(attribute.getName(), value));
        }//w  w w. j ava2 s  . c  om
    }
    return builder;
}

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From source file:ai.grakn.util.CommonUtil.java

public static <T> Collector<T, ?, ImmutableMultiset<T>> toImmutableMultiset() {
    return new Collector<T, ImmutableMultiset.Builder<T>, ImmutableMultiset<T>>() {
        @Override/*from  www. j  a  va2s  . com*/
        public Supplier<ImmutableMultiset.Builder<T>> supplier() {
            return ImmutableMultiset::builder;
        }

        @Override
        public BiConsumer<ImmutableMultiset.Builder<T>, T> accumulator() {
            return ImmutableMultiset.Builder::add;
        }

        @Override
        public BinaryOperator<ImmutableMultiset.Builder<T>> combiner() {
            return (b1, b2) -> b1.addAll(b2.build());
        }

        @Override
        public Function<ImmutableMultiset.Builder<T>, ImmutableMultiset<T>> finisher() {
            return ImmutableMultiset.Builder::build;
        }

        @Override
        public Set<Characteristics> characteristics() {
            return ImmutableSet.of();
        }
    };
}

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From source file:com.cloudera.science.ml.client.cmd.KMeansOutlierCommand.java

private void validate(List<Centers> centers, List<Integer> centerIds,
        Map<ClusterKey, MahalanobisDistance> distances) {
    ImmutableMultiset.Builder<Integer> imb = ImmutableMultiset.builder();
    for (ClusterKey ck : distances.keySet()) {
        imb.add(ck.getClusterId());//from  w w w.ja v a2 s  .com
    }
    Multiset<Integer> counts = imb.build();
    for (int i = 0; i < centers.size(); i++) {
        int idx = (centerIds == null || centerIds.isEmpty()) ? i : centerIds.get(i);
        if (counts.count(idx) != centers.get(i).size()) {
            throw new IllegalArgumentException("Covariance/cluster mismatch for cluster ID: " + idx);
        }
    }
}

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From source file:com.codingopus.collectors.CustomCollectors.java

/**
 * @return {@link ImmutableMultisetCollector}
 *//*from  w w  w  . j  a v  a2 s.c om*/
public static <T> Collector<T, ImmutableMultiset.Builder<T>, ImmutableMultiset<T>> toImmutableMultisetCollector() {
    return ImmutableMultisetCollector.toImmutableMultisetCollector();
}

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From source file:org.apache.aurora.scheduler.filter.AttributeAggregate.java

public void updateAttributeAggregate(IHostAttributes attributes) {
    // If the aggregate supplier has not been populated there is no need to update it here.
    // All tasks attributes will be picked up by the wrapped task query if executed at a
    // later point in time.
    if (isInitialized) {
        final Supplier<Multiset<Pair<String, String>>> previous = aggregate;
        aggregate = Suppliers.memoize(() -> {
            ImmutableMultiset.Builder<Pair<String, String>> builder = new ImmutableMultiset.Builder<>();
            builder.addAll(previous.get());
            addAttributes(builder, attributes.getAttributes());
            return builder.build();
        });//w  w  w . ja  v  a  2 s  . co m
    }
}

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From source file:edu.mit.streamjit.util.bytecode.Value.java

/**
 * Returns an immutable multiset of the users of this value. Note that a User may
 * use this value more than once, in which case it will appear that many times
 * in the multiset. To iterate over each user only once, call Multiset.elementSet()
 * on the returned multiset./*w ww  . j  ava 2s  . c  om*/
 * <p/>
 * The returned set will not change even if uses are added to or removed
 * from this value, so it is safe to iterate over even if the loop body may
 * change this value's use set.
 * @return an immutable multiset of this value's users
 */
public ImmutableMultiset<User> users() {
    //If this method is called often, we can cache it in a field to avoid
    //building many copies.  Calls to add/removeUse() would set the field to
    //null to invalidate it and we'd rebuild in users() when required.
    ImmutableMultiset.Builder<User> users = ImmutableMultiset.builder();
    for (Use u : uses())
        users.add(u.getUser());
    return users.build();
}

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From source file:me.yanaga.guava.stream.MoreCollectors.java

private static <T, B extends ImmutableMultiset.Builder<T>, M extends ImmutableMultiset<T>> Collector<T, ?, M> toImmutableMultiset(
        Supplier<B> supplier, Collector.Characteristics... characteristics) {
    return Collector.of(supplier, new BiConsumer<B, T>() {
        @Override/*  w w w. ja va2s.c  o  m*/
        public void accept(B objectBuilder, T t) {
            objectBuilder.add(t);
        }
    }, new BinaryOperator<B>() {
        @SuppressWarnings("unchecked")
        @Override
        public B apply(B objectBuilder, B objectBuilder2) {
            return (B) objectBuilder.addAll(objectBuilder2.build());
        }
    }, new Function<B, M>() {
        @SuppressWarnings("unchecked")
        @Override
        public M apply(B tBuilder) {
            return (M) tBuilder.build();
        }
    }, characteristics);
}

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From source file:com.opengamma.strata.collect.Guavate.java

/**
 * Collector used at the end of a stream to build an immutable multiset.
 * <p>/*  ww  w .  j  a va 2  s . com*/
 * A collector is used to gather data at the end of a stream operation.
 * This method returns a collector allowing streams to be gathered into
 * an {@link ImmutableMultiset}.
 * 
 * @param <T>  the type of element in the multiset
 * @return the immutable multiset collector
 */
public static <T> Collector<T, ImmutableMultiset.Builder<T>, ImmutableMultiset<T>> toImmutableMultiset() {
    return Collector.of(ImmutableMultiset.Builder<T>::new, ImmutableMultiset.Builder<T>::add,
            (l, r) -> l.addAll(r.build()), ImmutableMultiset.Builder<T>::build,
            Collector.Characteristics.UNORDERED);
}

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