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

Introduction

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

Prototype

public static <K, V> HashMap<K, V> newHashMapWithExpectedSize(int expectedSize) 

Source Link

Document

Creates a HashMap instance, with a high enough "initial capacity" that it should hold expectedSize elements without growth.

Usage

From source file:com.opengamma.engine.marketdata.live.LiveMarketDataPermissionProvider.java

private Map<LiveDataSpecification, Collection<ValueSpecification>> getRequiredLiveDataSpecifications(
        final Set<ValueSpecification> specifications) {
    final Map<LiveDataSpecification, Collection<ValueSpecification>> returnValue = Maps
            .newHashMapWithExpectedSize(specifications.size());
    for (final ValueSpecification specification : specifications) {
        final LiveDataSpecification liveDataSpec = LiveMarketDataAvailabilityProvider
                .getLiveDataSpecification(specification);
        Collection<ValueSpecification> specs = returnValue.get(liveDataSpec);
        if (specs == null) {
            specs = new ArrayList<ValueSpecification>();
            returnValue.put(liveDataSpec, specs);
        }//w w  w. j a  v  a 2 s. c  om
        specs.add(specification);
    }
    return returnValue;
}

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From source file:org.eclipse.hawkbit.ui.artifacts.footer.UploadViewConfirmationWindowLayout.java

@Override
protected Map<String, ConfirmationTab> getConfirmationTabs() {
    final Map<String, ConfirmationTab> tabs = Maps.newHashMapWithExpectedSize(2);
    if (!artifactUploadState.getDeleteSofwareModules().isEmpty()) {
        tabs.put(i18n.getMessage("caption.delete.swmodule.accordion.tab"), createSMDeleteConfirmationTab());
    }/* w  ww .  jav  a 2s.  c o m*/
    if (!artifactUploadState.getSelectedDeleteSWModuleTypes().isEmpty()) {
        tabs.put(i18n.getMessage("caption.delete.sw.module.type.accordion.tab"),
                createSMtypeDeleteConfirmationTab());
    }
    return tabs;
}

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From source file:com.attribyte.essem.model.Application.java

private ImmutableMap<Metric.Type, ImmutableSet<Metric>> buildTypeMap(final Collection<Metric> metrics) {
    if (metrics != null && metrics.size() > 0) {
        Map<Metric.Type, ImmutableSet.Builder<Metric>> builderMap = Maps
                .newHashMapWithExpectedSize(metrics.size());

        for (Metric metric : metrics) {
            ImmutableSet.Builder<Metric> setBuilder = builderMap.get(metric.type);
            if (setBuilder == null) {
                setBuilder = ImmutableSet.builder();
                builderMap.put(metric.type, setBuilder);
            }/*w ww.  java2 s .  c om*/
            setBuilder.add(metric);
        }

        ImmutableMap.Builder<Metric.Type, ImmutableSet<Metric>> builder = ImmutableMap.builder();
        for (Map.Entry<Metric.Type, ImmutableSet.Builder<Metric>> entry : builderMap.entrySet()) {
            builder.put(entry.getKey(), entry.getValue().build());
        }

        return builder.build();

    } else {
        return ImmutableMap.of();
    }
}

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From source file:org.caleydo.core.data.collection.table.CategoricalTable.java

@Override
protected void normalize() {
    if (categoricalClassDescription == null) {
        Set<CategoryType> uniqueCategories = new HashSet<>();
        for (AColumn<?, ?> column : columns) {
            @SuppressWarnings("unchecked")
            CategoricalColumn<CategoryType> catCol = (CategoricalColumn<CategoryType>) column;
            uniqueCategories.addAll(catCol.getCategories());
        }//  www. j  av  a2s  .  co  m
        categoricalClassDescription = new CategoricalClassDescription<>();
        categoricalClassDescription.autoInitialize(uniqueCategories);
        for (AColumn<?, ?> column : columns) {
            @SuppressWarnings("unchecked")
            CategoricalColumn<CategoryType> catCol = (CategoricalColumn<CategoryType>) column;
            catCol.setCategoryDescriptions(categoricalClassDescription);
        }

    }
    super.normalize();

    //no build the opposite num matches
    //first one use to initialize

    {
        @SuppressWarnings("unchecked")
        CategoricalColumn<CategoryType> firstColumn = (CategoricalColumn<CategoryType>) columns.get(0);
        int numCategories = getCategoryDescriptions().getCategoryProperties().size();
        oppositeNumMatches = new ArrayList<>(firstColumn.size());
        for (int i = 0; i < firstColumn.size(); ++i) {
            CategoryType v = firstColumn.getRaw(i);
            HashMap<CategoryType, Integer> hist = Maps.newHashMapWithExpectedSize(numCategories);
            hist.put(v, 1);
            oppositeNumMatches.add(hist);
        }
    }
    for (AColumn<?, ?> col : columns.subList(1, columns.size())) {
        @SuppressWarnings("unchecked")
        CategoricalColumn<CategoryType> column = (CategoricalColumn<CategoryType>) col;
        for (int i = 0; i < col.size(); ++i) {
            CategoryType v = column.getRaw(i);
            Map<CategoryType, Integer> hist = oppositeNumMatches.get(i);
            Integer h = hist.get(v);
            if (h == null)
                hist.put(v, 1);
            else
                hist.put(v, h + 1);
        }
    }
}

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From source file:com.google.gerrit.lucene.LuceneVersionManager.java

@Inject
LuceneVersionManager(@GerritServerConfig Config cfg, SitePaths sitePaths,
        Collection<IndexDefinition<?, ?, ?>> defs) {
    this.sitePaths = sitePaths;
    this.defs = Maps.newHashMapWithExpectedSize(defs.size());
    for (IndexDefinition<?, ?, ?> def : defs) {
        this.defs.put(def.getName(), def);
    }/*from  ww  w. j a  v  a2 s . co m*/

    reindexers = Maps.newHashMapWithExpectedSize(defs.size());
    onlineUpgrade = cfg.getBoolean("index", null, "onlineUpgrade", true);
    runReindexMsg = "No index versions ready; run java -jar " + sitePaths.gerrit_war.toAbsolutePath()
            + " reindex";
}

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From source file:org.opennms.web.rest.measurements.fetch.JrobinFetchStrategy.java

/**
 * {@inheritDoc}//from   w ww .ja  v  a2 s.  c  om
 */
@Override
protected FetchResults fetchMeasurements(long start, long end, long step, int maxrows,
        Map<Source, String> rrdsBySource, Map<String, Object> constants) throws RrdException {

    final long startInSeconds = (long) Math.floor(start / 1000);
    final long endInSeconds = (long) Math.floor(end / 1000);

    long stepInSeconds = (long) Math.floor(step / 1000);
    // The step must be strictly positive
    if (stepInSeconds <= 0) {
        stepInSeconds = 1;
    }

    final DataProcessor dproc = new DataProcessor(startInSeconds, endInSeconds);
    if (maxrows > 0) {
        dproc.setPixelCount(maxrows);
    }
    dproc.setFetchRequestResolution(stepInSeconds);

    for (final Map.Entry<Source, String> entry : rrdsBySource.entrySet()) {
        final Source source = entry.getKey();
        final String rrdFile = entry.getValue();

        dproc.addDatasource(source.getLabel(), rrdFile, source.getAttribute(), source.getAggregation());
    }

    try {
        dproc.processData();
    } catch (IOException e) {
        throw new RrdException("JRB processing failed.", e);
    }

    final long[] timestamps = dproc.getTimestamps();

    // Convert the timestamps to milliseconds
    for (int i = 0; i < timestamps.length; i++) {
        timestamps[i] *= 1000;
    }

    final Map<String, double[]> columns = Maps.newHashMapWithExpectedSize(rrdsBySource.keySet().size());
    for (Source source : rrdsBySource.keySet()) {
        columns.put(source.getLabel(), dproc.getValues(source.getLabel()));
    }

    return new FetchResults(timestamps, columns, dproc.getStep() * 1000, constants);
}

---

From source file:org.sonatype.nexus.proxy.maven.packaging.DefaultArtifactPackagingMapper.java

public Map<String, String> getPackaging2extensionMapping() {
    if (packaging2extensionMapping == null) {
        synchronized (this) {
            if (packaging2extensionMapping == null) {
                packaging2extensionMapping = Maps.newHashMapWithExpectedSize(defaults.size());

                // merge defaults
                packaging2extensionMapping.putAll(defaults);

                if (propertiesFile != null && propertiesFile.exists()) {
                    log.info("Found artifact packaging mapping file {}", propertiesFile);

                    final Properties userMappings = new Properties();

                    try (final FileInputStream fis = new FileInputStream(propertiesFile)) {
                        userMappings.load(fis);

                        if (userMappings.keySet().size() > 0) {
                            for (Object key : userMappings.keySet()) {
                                packaging2extensionMapping.put(key.toString(),
                                        userMappings.getProperty(key.toString()));
                            }/*from  ww  w .  ja  va2  s . c o m*/

                            log.info("User artifact packaging mapping file contained {} mappings",
                                    userMappings.keySet().size());
                        }
                    } catch (IOException e) {
                        log.warn("Got IO exception during read of file: {}", propertiesFile.getAbsolutePath(),
                                e);
                    }
                } else {
                    // make it silent if using defaults
                    log.debug("User artifact packaging mappings file not found, will work with defaults...");
                }
            }
        }
    }

    return packaging2extensionMapping;
}

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From source file:com.pinterest.terrapin.thrift.TerrapinServiceImpl.java

/**
 * @param configuration Config settings containing settings such
 * @throws Exception//from   w w w .j av a  2 s  . co  m
 */
public TerrapinServiceImpl(PropertiesConfiguration configuration, List<String> clusterList) throws Exception {
    String zkQuorum = TerrapinUtil.getZKQuorumFromConf(configuration);
    Preconditions.checkNotNull(zkQuorum, "Zookeeper quorum should not be empty/null.");
    ZooKeeperClient zkClient = TerrapinUtil.getZooKeeperClient(zkQuorum, 30);
    this.clusterClientMap = Maps.newHashMapWithExpectedSize(clusterList.size());
    for (String clusterName : clusterList) {
        try {
            FileSetViewManager fsViewManager = new FileSetViewManager(zkClient, clusterName);
            LOG.info("Connecting to cluster " + clusterName + " on " + zkQuorum);
            TerrapinClient terrapinClient = new TerrapinClient(fsViewManager, clusterName,
                    configuration.getInt(Constants.TERRAPIN_SERVER_TARGET_PORT, Constants.DEFAULT_THRIFT_PORT),
                    configuration.getInt(Constants.CLIENT_CONNECT_TIMEOUT_MILLIS, 300),
                    configuration.getInt(Constants.CLIENT_RPC_TIMEOUT_MILLIS, 500));
            clusterClientMap.put(clusterName, terrapinClient);
            LOG.info("Done.");
        } catch (Exception e) {
            LOG.warn("Could not connect to cluster " + clusterName, e);
            throw e;
        }
    }
}

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From source file:voldemort.store.compress.CompressingStore.java

@Override
public Map<ByteArray, List<Versioned<byte[]>>> getAll(Iterable<ByteArray> keys,
        Map<ByteArray, byte[]> transforms) throws VoldemortException {
    StoreUtils.assertValidKeys(keys);//ww  w .ja v a  2s .c o  m
    Iterable<ByteArray> processedKeys = keys;
    List<ByteArray> deflatedKeys = Lists.newArrayList();
    for (ByteArray key : keys)
        deflatedKeys.add(deflateKey(key));
    processedKeys = deflatedKeys;
    Map<ByteArray, byte[]> newTransforms = Maps.newHashMap();
    if (transforms != null) {
        for (Map.Entry<ByteArray, byte[]> transform : transforms.entrySet()) {
            newTransforms.put(deflateKey(transform.getKey()), transform.getValue());
        }
    } else {
        for (ByteArray deflatedKey : processedKeys) {
            newTransforms.put(deflatedKey, null);
        }
    }
    Map<ByteArray, List<Versioned<byte[]>>> deflatedResult = innerStore.getAll(processedKeys, newTransforms);
    Map<ByteArray, List<Versioned<byte[]>>> result = Maps.newHashMapWithExpectedSize(deflatedResult.size());
    for (Map.Entry<ByteArray, List<Versioned<byte[]>>> mapEntry : deflatedResult.entrySet())
        result.put(inflateKey(mapEntry.getKey()), inflateValues(mapEntry.getValue()));
    return result;
}

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From source file:org.gradle.internal.locking.DependencyLockingArtifactVisitor.java

@Override
public void startArtifacts(RootGraphNode root) {
    RootConfigurationMetadata metadata = root.getMetadata();
    dependencyLockingState = metadata.getDependencyLockingState();
    if (dependencyLockingState.mustValidateLockState()) {
        Set<ModuleComponentIdentifier> lockedModules = dependencyLockingState.getLockedDependencies();
        modulesToBeLocked = Maps.newHashMapWithExpectedSize(lockedModules.size());
        for (ModuleComponentIdentifier lockedModule : lockedModules) {
            modulesToBeLocked.put(lockedModule.getModuleIdentifier(), lockedModule);
        }//from w w  w . j a v  a  2  s. c o  m
        allResolvedModules = Sets.newHashSetWithExpectedSize(this.modulesToBeLocked.size());
        extraModules = Sets.newHashSet();
    } else {
        modulesToBeLocked = Collections.emptyMap();
        allResolvedModules = Sets.newHashSet();
    }
}

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