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:org.apache.phoenix.end2end.SysTableNamespaceMappedStatsCollectorIT.java

@BeforeClass
public static void doSetup() throws Exception {
    // enable name space mapping at global level on both client and server side
    Map<String, String> serverProps = Maps.newHashMapWithExpectedSize(7);
    serverProps.put(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, "true");
    serverProps.put(QueryServices.STATS_GUIDEPOST_WIDTH_BYTES_ATTRIB, Long.toString(20));
    serverProps.put(QueryServices.IS_SYSTEM_TABLE_MAPPED_TO_NAMESPACE, "true");
    Map<String, String> clientProps = Maps.newHashMapWithExpectedSize(2);
    clientProps.put(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, "true");
    clientProps.put(QueryServices.STATS_GUIDEPOST_WIDTH_BYTES_ATTRIB, Long.toString(20));
    clientProps.put(QueryServices.IS_SYSTEM_TABLE_MAPPED_TO_NAMESPACE, "true");
    setUpTestDriver(new ReadOnlyProps(serverProps.entrySet().iterator()),
            new ReadOnlyProps(clientProps.entrySet().iterator()));
}

From source file:com.yunmel.syncretic.utils.commons.CollectionsUtils.java

/**
 * ????(Getter), ??Map.//from   w w  w .j ava 2 s  . c  om
 * 
 * @param collection ???.
 * @param keyPropertyName ????MapKey??.
 * @param valuePropertyName ????MapValue??.
 */
@SuppressWarnings("unchecked")
public static Map extractToMap(final Collection collection, final String keyPropertyName,
        final String valuePropertyName) {
    Map map = Maps.newHashMapWithExpectedSize(collection.size());

    try {
        for (Object obj : collection) {
            map.put(PropertyUtils.getProperty(obj, keyPropertyName),
                    PropertyUtils.getProperty(obj, valuePropertyName));
        }
    } catch (Exception e) {
        throw Reflections.convertReflectionExceptionToUnchecked(e);
    }

    return map;
}

From source file:org.apache.phoenix.end2end.BaseViewIT.java

@BeforeClass
public static void doSetup() throws Exception {
    Map<String, String> props = Maps.newHashMapWithExpectedSize(1);
    props.put(QueryServices.STATS_GUIDEPOST_WIDTH_BYTES_ATTRIB, Integer.toString(20));
    props.put(QueryServices.QUEUE_SIZE_ATTRIB, Integer.toString(1024));
    setUpTestDriver(new ReadOnlyProps(props.entrySet().iterator()));
}

From source file:org.apache.phoenix.end2end.IndexToolForPartialBuildWithNamespaceEnabledIT.java

@BeforeClass
@Shadower(classBeingShadowed = IndexToolForPartialBuildIT.class)
public static void doSetup() throws Exception {
    Map<String, String> serverProps = getServerProperties();
    serverProps.put(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, "true");
    Map<String, String> clientProps = Maps.newHashMapWithExpectedSize(1);
    clientProps.put(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, "true");
    setUpTestDriver(new ReadOnlyProps(serverProps.entrySet().iterator()),
            new ReadOnlyProps(clientProps.entrySet().iterator()));
}

From source file:org.eclipse.hawkbit.ui.artifacts.event.UploadViewAcceptCriteria.java

private static Map<String, List<String>> createDropConfigurations() {
    final Map<String, List<String>> config = Maps.newHashMapWithExpectedSize(1);
    // Delete drop area droppable components
    config.put(UIComponentIdProvider.DELETE_BUTTON_WRAPPER_ID,
            Arrays.asList(UIComponentIdProvider.UPLOAD_SOFTWARE_MODULE_TABLE,
                    UIComponentIdProvider.UPLOAD_TYPE_BUTTON_PREFIX));

    return config;
}

From source file:org.matsim.contrib.zone.ZonalSystems.java

public static Map<Id<Zone>, List<Zone>> initZonesByDistance(Map<Id<Zone>, Zone> zones) {
    Map<Id<Zone>, List<Zone>> zonesByDistance = Maps.newHashMapWithExpectedSize(zones.size());
    for (final Zone currentZone : zones.values()) {
        List<Zone> sortedZones = zones.values().stream()//
                .sorted(Comparator.comparing(z -> DistanceUtils.calculateSquaredDistance(currentZone, z)))//
                .collect(Collectors.toList());
        zonesByDistance.put(currentZone.getId(), sortedZones);
    }// www  . j a v  a2 s.c o m
    return zonesByDistance;
}

From source file:org.sonatype.nexus.orient.entity.FieldCopier.java

@SuppressWarnings("unchecked")
public static Map copy(final ODocument source) {
    String[] names = source.fieldNames();
    Map target = Maps.newHashMapWithExpectedSize(names.length);
    for (String name : names) {
        Object value = maybeCopy(source.field(name));
        target.put(name, value);/* w ww .  j  a va 2  s.c om*/
    }
    return target;
}

From source file:com.google.gcloud.datastore.DatastoreHelper.java

/**
 * Returns a list with a value for each given key (ordered by input).
 * A {@code null} would be returned for non-existing keys.
 *///from w w  w.j a v  a  2 s . co m
static List<Entity> fetch(DatastoreReader reader, Key... keys) {
    Iterator<Entity> entities = reader.get(keys);
    Map<Key, Entity> map = Maps.newHashMapWithExpectedSize(keys.length);
    while (entities.hasNext()) {
        Entity entity = entities.next();
        map.put(entity.key(), entity);
    }
    List<Entity> list = new ArrayList<>(keys.length);
    for (Key key : keys) {
        // this will include nulls for non-existing keys
        list.add(map.get(key));
    }
    return list;
}

From source file:com.palantir.atlasdb.table.description.Schemas.java

public static void createIndices(KeyValueService kvs, Map<String, IndexDefinition> fullIndexNameToDefinition) {
    Map<String, byte[]> fullIndexNameToMetadata = Maps
            .newHashMapWithExpectedSize(fullIndexNameToDefinition.size());
    for (Entry<String, IndexDefinition> indexEntry : fullIndexNameToDefinition.entrySet()) {
        fullIndexNameToMetadata.put(indexEntry.getKey(),
                indexEntry.getValue().toIndexMetadata(indexEntry.getKey()).getTableMetadata().persistToBytes());
    }/*from w  w  w . j  a va 2 s.co  m*/
    kvs.createTables(fullIndexNameToMetadata);
}

From source file:org.apache.phoenix.schema.stats.NamespaceEnabledStatsCollectorIT.java

@BeforeClass
public static void doSetup() throws Exception {
    // enable name space mapping at global level on both client and server side
    Map<String, String> serverProps = Maps.newHashMapWithExpectedSize(7);
    serverProps.put(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, Boolean.TRUE.toString());
    serverProps.put(QueryServices.STATS_GUIDEPOST_WIDTH_BYTES_ATTRIB, Long.toString(20));
    Map<String, String> clientProps = Maps.newHashMapWithExpectedSize(2);
    clientProps.put(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, Boolean.TRUE.toString());
    clientProps.put(QueryServices.STATS_GUIDEPOST_WIDTH_BYTES_ATTRIB, Long.toString(20));
    setUpTestDriver(new ReadOnlyProps(serverProps.entrySet().iterator()),
            new ReadOnlyProps(clientProps.entrySet().iterator()));
}