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

Introduction

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

Prototype

public static <K, V> ArrayListMultimap<K, V> create()

Source Link

Document

Creates a new, empty ArrayListMultimap with the default initial capacities.

Usage

From source file:org.apache.cassandra.service.BatchlogEndpointSelector.java

/**
 * @param endpoints nodes in the local datacenter, grouped by rack name
 * @return list of candidates for batchlog hosting.  if possible these will be two nodes from different racks.
 *///from   w w w.j a  v  a 2s  .c  o m
public Collection<InetAddress> chooseEndpoints(Multimap<String, InetAddress> endpoints) {
    // strip out dead endpoints and localhost
    ListMultimap<String, InetAddress> validated = ArrayListMultimap.create();
    for (Map.Entry<String, InetAddress> entry : endpoints.entries()) {
        if (isValid(entry.getValue()))
            validated.put(entry.getKey(), entry.getValue());
    }
    if (validated.size() <= 2)
        return validated.values();

    if ((validated.size() - validated.get(localRack).size()) >= 2) {
        // we have enough endpoints in other racks
        validated.removeAll(localRack);
    }

    if (validated.keySet().size() == 1) {
        // we have only 1 `other` rack
        Collection<InetAddress> otherRack = Iterables.getOnlyElement(validated.asMap().values());
        return Lists.newArrayList(Iterables.limit(otherRack, 2));
    }

    // randomize which racks we pick from if more than 2 remaining
    Collection<String> racks;
    if (validated.keySet().size() == 2) {
        racks = validated.keySet();
    } else {
        racks = Lists.newArrayList(validated.keySet());
        Collections.shuffle((List) racks);
    }

    // grab a random member of up to two racks
    List<InetAddress> result = new ArrayList<>(2);
    for (String rack : Iterables.limit(racks, 2)) {
        List<InetAddress> rackMembers = validated.get(rack);
        result.add(rackMembers.get(getRandomInt(rackMembers.size())));
    }

    return result;
}

From source file:com.kurtraschke.ctatt.gtfsrealtime.services.GtfsDaoService.java

public GtfsDaoService() {
    scheduledTripMapping = ArrayListMultimap.create();
}

From source file:org.eclipse.incquery.tooling.core.generator.fragments.ExtensionBasedGenerationFragmentProvider.java

protected void initializeFragments() {
    fragments = ArrayListMultimap.create();
    final IConfigurationElement[] config = Platform.getExtensionRegistry()
            .getConfigurationElementsFor(EXTENSIONID);
    for (IConfigurationElement e : config) {
        final String annotationName = e.getAttribute("annotation") != null ? e.getAttribute("annotation")
                : GENERIC_ATTRIBUTE;/*from www.  j a  v a  2 s  . c o m*/
        try {
            IGenerationFragment fragment = (IGenerationFragment) e.createExecutableExtension("fragment");
            fragments.put(annotationName, fragment);
        } catch (CoreException e1) {
            logger.warn("Cannot load generator fragment from " + e.getContributor().getName(), e1);
        }
    }
}

From source file:com.streamsets.pipeline.lib.el.ELUtils.java

public static Multimap<String, Record> partitionBatchByExpression(ELEval elEvaluator, ELVars variables,
        String expression, Batch batch) {
    Multimap<String, Record> partitions = ArrayListMultimap.create();

    Iterator<Record> batchIterator = batch.getRecords();

    while (batchIterator.hasNext()) {
        Record record = batchIterator.next();
        RecordEL.setRecordInContext(variables, record);
        try {//from  ww  w  .  ja  v a2 s. c o m
            String partitionName = elEvaluator.eval(variables, expression, String.class);
            LOG.debug("Expression '{}' is evaluated to '{}' : ", expression, partitionName);
            partitions.put(partitionName, record);
        } catch (ELEvalException e) {
            LOG.error("Failed to evaluate expression '{}' : ", expression, e.toString(), e);
        }
    }

    return partitions;
}

From source file:prm4j.indexing.model.ParametricPropertyModel.java

public ParametricPropertyModel(ParametricProperty pp) {
    super();//www .  j  ava  2s .c o  m
    this.pp = pp;
    maxArgs = ArrayListMultimap.create();
    joinArgs = ArrayListMultimap.create();
    updateChainingArgs = HashMultimap.create();
    monitorSetSpecs = HashMultimap.create();
    initialize();
}

From source file:com.onboard.service.websocket.impl.WebSocketServiceImpl.java

@PostConstruct
public void init() {
    userPagesMap = ArrayListMultimap.create();
}

From source file:com.griddynamics.jagger.engine.e1.sessioncomparation.ConfigurableSessionComparator.java

@Override
@SuppressWarnings("unchecked")
public SessionVerdict compare(String currentSession, String baselineSession) {

    log.info("Comparing of sessions requested");
    log.info("Feature comparators chain {}", comparatorChain);

    Multimap<String, Verdict> details = ArrayListMultimap.create();
    for (FeatureComparator featureComparator : comparatorChain) {
        String feature = featureComparator.getDescription();

        log.debug("Going to compare feature {}", feature);
        List<Verdict> verdicts = featureComparator.compare(currentSession, baselineSession);
        log.debug("Verdicts for feature {} are {}", feature, verdicts);

        details.putAll(feature, verdicts);
    }/*  w  ww .j  a  v  a2s . c o  m*/

    Decision decision = decisionMaker.makeDecision(details);

    log.info("Sessions compared. Decision {}", decision);

    return new SessionVerdict(decision, details);
}

From source file:org.apache.mailet.PerRecipientHeaders.java

public PerRecipientHeaders() {
    headersByRecipient = ArrayListMultimap.create();
}

From source file:io.datakernel.datagraph.graph.DataGraph.java

private ListMultimap<Partition, Node> getNodesByPartition() {
    ListMultimap<Partition, Node> listMultimap = ArrayListMultimap.create();
    for (Map.Entry<Node, Partition> entry : nodePartitions.entrySet()) {
        listMultimap.put(entry.getValue(), entry.getKey());
    }/*from  ww w .j a  v a 2  s .  c  om*/
    return listMultimap;
}

From source file:org.sonar.batch.bootstrap.BatchExtensionInstaller.java

public void install(Module module) {
    ListMultimap<PluginMetadata, Object> installedExtensionsByPlugin = ArrayListMultimap.create();
    for (Map.Entry<PluginMetadata, Plugin> entry : pluginRepository.getPluginsByMetadata().entrySet()) {
        PluginMetadata metadata = entry.getKey();
        Plugin plugin = entry.getValue();

        module.addExtension(metadata, plugin);

        for (Object extension : plugin.getExtensions()) {
            if (installExtension(module, metadata, extension)) {
                installedExtensionsByPlugin.put(metadata, extension);
            } else {
                module.declareExtension(metadata, extension);
            }//www  . ja v a2  s  .  c  o  m
        }
    }
    for (Map.Entry<PluginMetadata, Object> entry : installedExtensionsByPlugin.entries()) {
        PluginMetadata plugin = entry.getKey();
        Object extension = entry.getValue();
        if (isExtensionProvider(extension)) {
            ExtensionProvider provider = (ExtensionProvider) module.getComponentByKey(extension);
            installProvider(module, plugin, provider);
        }
    }
    installMetrics(module);
}