Example usage for com.google.common.collect Maps filterKeys

Introduction

In this page you can find the example usage for com.google.common.collect Maps filterKeys.

Prototype

@CheckReturnValue
public static <K, V> BiMap<K, V> filterKeys(BiMap<K, V> unfiltered, final Predicate<? super K> keyPredicate)

Source Link

Document

Returns a bimap containing the mappings in unfiltered whose keys satisfy a predicate.

Usage

From source file:com.proofpoint.tracetoken.TraceToken.java

@JsonValue
Map<String, String> getJson() {
    return Maps.filterKeys(this, key -> !key.startsWith("_"));
}

From source file:zotmc.collect.FluentMap.java

public FluentMap<K, V> filterKeys(Predicate<? super K> keyPredicate) {
    return from(Maps.filterKeys(delegatee(), keyPredicate));
}

From source file:io.prestosql.sql.planner.iterative.rule.PruneWindowColumns.java

@Override
protected Optional<PlanNode> pushDownProjectOff(PlanNodeIdAllocator idAllocator, WindowNode windowNode,
        Set<Symbol> referencedOutputs) {
    Map<Symbol, WindowNode.Function> referencedFunctions = Maps.filterKeys(windowNode.getWindowFunctions(),
            referencedOutputs::contains);

    if (referencedFunctions.isEmpty()) {
        return Optional.of(windowNode.getSource());
    }/*w ww  . j  a va 2 s  .c  om*/

    ImmutableSet.Builder<Symbol> referencedInputs = ImmutableSet.<Symbol>builder().addAll(
            windowNode.getSource().getOutputSymbols().stream().filter(referencedOutputs::contains).iterator())
            .addAll(windowNode.getPartitionBy());

    windowNode.getOrderingScheme()
            .ifPresent(orderingScheme -> orderingScheme.getOrderBy().forEach(referencedInputs::add));
    windowNode.getHashSymbol().ifPresent(referencedInputs::add);

    for (WindowNode.Function windowFunction : referencedFunctions.values()) {
        referencedInputs.addAll(SymbolsExtractor.extractUnique(windowFunction.getFunctionCall()));
        windowFunction.getFrame().getStartValue().ifPresent(referencedInputs::add);
        windowFunction.getFrame().getEndValue().ifPresent(referencedInputs::add);
    }

    PlanNode prunedWindowNode = new WindowNode(windowNode.getId(),
            restrictOutputs(idAllocator, windowNode.getSource(), referencedInputs.build())
                    .orElse(windowNode.getSource()),
            windowNode.getSpecification(), referencedFunctions, windowNode.getHashSymbol(),
            windowNode.getPrePartitionedInputs(), windowNode.getPreSortedOrderPrefix());

    if (prunedWindowNode.getOutputSymbols().size() == windowNode.getOutputSymbols().size()) {
        // Neither function pruning nor input pruning was successful.
        return Optional.empty();
    }

    return Optional.of(prunedWindowNode);
}

From source file:com.facebook.presto.sql.planner.iterative.rule.PruneWindowColumns.java

@Override
protected Optional<PlanNode> pushDownProjectOff(PlanNodeIdAllocator idAllocator, WindowNode windowNode,
        Set<Symbol> referencedOutputs) {
    Map<Symbol, WindowNode.Function> referencedFunctions = Maps.filterKeys(windowNode.getWindowFunctions(),
            referencedOutputs::contains);

    if (referencedFunctions.isEmpty()) {
        return Optional.of(windowNode.getSource());
    }/* w  w  w.  ja  va  2s. co m*/

    ImmutableSet.Builder<Symbol> referencedInputs = ImmutableSet
            .<Symbol>builder().addAll(windowNode.getSource().getOutputSymbols().stream()
                    .filter(referencedOutputs::contains).iterator())
            .addAll(windowNode.getPartitionBy()).addAll(windowNode.getOrderBy());

    windowNode.getHashSymbol().ifPresent(referencedInputs::add);

    for (WindowNode.Function windowFunction : referencedFunctions.values()) {
        referencedInputs.addAll(SymbolsExtractor.extractUnique(windowFunction.getFunctionCall()));
        windowFunction.getFrame().getStartValue().ifPresent(referencedInputs::add);
        windowFunction.getFrame().getEndValue().ifPresent(referencedInputs::add);
    }

    PlanNode prunedWindowNode = new WindowNode(windowNode.getId(),
            restrictOutputs(idAllocator, windowNode.getSource(), referencedInputs.build())
                    .orElse(windowNode.getSource()),
            windowNode.getSpecification(), referencedFunctions, windowNode.getHashSymbol(),
            windowNode.getPrePartitionedInputs(), windowNode.getPreSortedOrderPrefix());

    if (prunedWindowNode.getOutputSymbols().size() == windowNode.getOutputSymbols().size()) {
        // Neither function pruning nor input pruning was successful.
        return Optional.empty();
    }

    return Optional.of(prunedWindowNode);
}

From source file:io.mindmaps.graql.internal.query.match.MatchQuerySelect.java

@Override
public Stream<Map<String, Concept>> transformStream(Stream<Map<String, Concept>> stream) {
    return stream.map(result -> Maps.filterKeys(result, names::contains));
}

From source file:eu.lp0.cursus.scoring.scores.impl.GenericOverallPointsData.java

@Override
protected int calculateOverallPoints(Pilot pilot) {
    int points = 0;

    // Add race points but not discards
    for (Entry<Race, Integer> racePoints : Maps.filterKeys(scores.getRacePoints(pilot),
            Predicates.not(Predicates.in(scores.getDiscardedRaces(pilot)))).entrySet()) {
        points += racePoints.getValue();
    }//from  w ww .  j a v a2  s  .  c  o m

    // Add all penalties (this includes race penalties)
    points += scores.getOverallPenalties(pilot);
    if (points < 0) {
        points = 0;
    }

    return points;
}

From source file:com.b2international.commons.dynamic.DynamicMapImpl.java

@SuppressWarnings("unchecked")
public DynamicMapImpl(Map<?, ?> map) {

    valueMap = ImmutableMap.copyOf((Map<String, DynamicValue>) Maps
            .transformValues(Maps.filterKeys(map, stringKeyFilter), valueConverter));
}

From source file:eu.redzoo.reactive.kafka.rest.Environment.java

public ImmutableMap<String, String> getConfigValues(ImmutableSet<String> names) {
    return ImmutableMap.copyOf(Maps.filterKeys(configs, name -> names.contains(name)));
}

From source file:org.jclouds.docker.compute.functions.CustomLoginPortFromImage.java

@Override
public Optional<Integer> apply(final Container container) {
    Map<String, Set<LoginPortForContainer>> matchingFunctions = Maps.filterKeys(imageToPortLookup,
            new Predicate<String>() {
                @Override//from   w w w  .j  a v  a  2 s . co  m
                public boolean apply(String input) {
                    return container.config().image().matches(input);
                }
            });

    // We allow to provide several forms in the image-to-function map:
    // - redis
    // - redis:12
    // - owner/redis:12
    // - registry:5000/owner/redis:12
    // We consider the longest match first, as it is the more accurate one
    List<String> sortedImages = new ArrayList<String>(matchingFunctions.keySet());
    Collections.sort(sortedImages, LongestStringFirst);

    for (String currentImage : sortedImages) {
        Set<LoginPortForContainer> functions = matchingFunctions.get(currentImage);
        for (LoginPortForContainer function : functions) {
            Optional<Integer> port = function.apply(container);
            if (port.isPresent()) {
                return port;
            }
        }
    }

    return Optional.absent();
}

From source file:io.fabric8.process.fabric.child.tasks.ApplyConfigurationTask.java

@Override
public void install(ProcessConfig config, String id, File installDir) throws Exception {
    Map<String, String> templates = Maps.filterKeys(configuration, isTemplate);
    Map<String, String> plainFiles = Maps.difference(configuration, templates).entriesOnlyOnLeft();
    Map<String, String> renderedTemplates = Maps.transformValues(templates,
            new MvelTemplateRendering(variables));
    File baseDir = ProcessUtils.findInstallDir(installDir);
    applyTemplates(renderedTemplates, baseDir);
    applyPlainConfiguration(plainFiles, baseDir);

}