Example usage for com.google.common.collect ConcurrentHashMultiset create

Introduction

In this page you can find the example usage for com.google.common.collect ConcurrentHashMultiset create.

Prototype

@Beta
public static <E> ConcurrentHashMultiset<E> create(MapMaker mapMaker) 

Source Link

Document

Creates a new, empty ConcurrentHashMultiset using mapMaker to construct the internal backing map.

Usage

From source file:com.github.fhirschmann.clozegen.lib.generators.CollocationGapGenerator.java

@Override
public Optional<Gap> generate(final int count) {
    checkNotNull(model);/*from   ww  w. j  a  v  a 2s  .c  om*/
    Gap gap = new Gap();
    gap.addValidAnswers(triplet.getValue1());

    // Collect a list of possible candidates for this gap
    final Multiset<String> candidates = ConcurrentHashMultiset.create(MultisetUtils.mergeMultiSets(
            model.getTails().get(triplet.getValue2()), model.getHeads().get(triplet.getValue0())));

    // Remove the correct answer from the candidate set
    candidates.remove(triplet.getValue1(), candidates.count(triplet.getValue1()));

    // Remove candidates p* which appear in the context (A, p*, B)
    for (Entry<String> entry : candidates.entrySet()) {
        if (model.getMultiset().contains(
                MiscUtils.WS_JOINER.join(triplet.getValue0(), entry.getElement(), triplet.getValue2()))) {
            candidates.remove(entry.getElement(), entry.getCount());
        }
    }

    if (candidates.elementSet().size() > count - 2) {
        final Set<String> invalidAnswers = Sets
                .newHashSet(MultisetUtils.sortedElementList(candidates, count - 1));
        gap.addInvalidAnswers(invalidAnswers);
        return Optional.of(gap);
    } else {
        return Optional.absent();
    }
}

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