Example usage for com.google.common.base Functions constant

Introduction

In this page you can find the example usage for com.google.common.base Functions constant.

Prototype

public static <E> Function<Object, E> constant(@Nullable E value)

Source Link

Document

Creates a function that returns value for any input.

Usage

From source file:playground.jbischoff.taxi.berlin.supply.TaxiStatusDataAnalyser.java

public static void main(String[] args) throws ParseException, IOException {
    //        String dir = "d:/eclipse-vsp/sustainability-w-michal-and-dlr/data/OD/2014/status/";
    //        String dir = "c:/local_jb/data/taxi_berlin/2014/status/";

    //        String dir = "/Users/jb/sustainability-w-michal-and-dlr/data/taxi_berlin/2014/status/";
    String dir = "C:/Users/Joschka/Documents/shared-svn/projects/sustainability-w-michal-and-dlr/data/taxi_berlin/2014/status/";
    String statusMatricesFile = dir + "statusMatrix.xml.gz";

    String averagesFile = dir + "averages.csv";
    String taxisOverTimeFile = dir + "taxisovertime.csv";

    String hourlyStatusMatricesXmlFile = dir + "statusMatrixHourly.xml";
    String hourlyStatusMatricesTxtFile = dir + "statusMatrixHourly.txt";

    String avgStatusMatricesXmlFile = dir + "statusMatrixAvg.xml";
    String avgStatusMatricesTxtFile = dir + "statusMatrixAvg.txt";

    String zonalStatuses = dir + "statusByZone_tuesday.txt";

    String idleVehiclesPerZoneAndHour = dir + "idleVehiclesPerZoneAndHour.txt";

    ////from ww  w.  j a  va2 s. c o m
    Matrices statusMatrices = MatrixUtils.readMatrices(statusMatricesFile);

    //      dumpTaxisInSystem(statusMatrices, "20130415000000", "20130421235500", averagesFile, taxisOverTimeFile);

    String start = "20140407000000";
    String end = "20140414000000";

    writeStatusByZone(statusMatrices, zonalStatuses, start, end);
    Matrices hourlyMatrices = calculateAveragesByHour(statusMatrices, 7);
    writeMatrices(hourlyMatrices, hourlyStatusMatricesXmlFile, hourlyStatusMatricesTxtFile);

    writeMatrices(calculateAverages(hourlyMatrices, 1. / 24, Functions.constant("avg")),
            avgStatusMatricesXmlFile, avgStatusMatricesTxtFile);
    writeIdleVehiclesByZoneAndStatus(statusMatrices, idleVehiclesPerZoneAndHour, start, end);
}

From source file:brooklyn.entity.basic.EntityTasks.java

/** creates an (unsubmitted) task which waits for the attribute to satisfy the given predicate,
 * returning false if it times out or becomes unmanaged */
public static <T> Task<Boolean> testingAttributeEventually(Entity entity, AttributeSensor<T> sensor,
        Predicate<T> condition, Duration timeout) {
    return DependentConfiguration.builder().attributeWhenReady(entity, sensor).readiness(condition)
            .postProcess(Functions.constant(true)).timeout(timeout).onTimeoutReturn(false)
            .onUnmanagedReturn(false).build();
}

From source file:edu.uci.ics.jung.visualization.decorators.AbstractVertexShapeTransformer.java

public AbstractVertexShapeTransformer() {
    this(Functions.constant(DEFAULT_SIZE), Functions.constant(DEFAULT_ASPECT_RATIO));
}

From source file:com.palantir.atlasdb.schema.UpgradeTableFactories.java

public static UpgradeTableFactory get() {
    SharedTriggers sharedTriggers = new SharedTriggers() {
        @Override// ww  w .j  a v a 2 s  .  co  m
        public void putUpgTaskMetadata(
                Multimap<UpgTaskMetadataRow, ? extends UpgTaskMetadataNamedColumnValue<?>> newRows) {
            // WE DON'T INTEND TO MIGRATE UPDATES ANYMORE THAN TO UPGRADE MIGRATIONS
        }

        @Override
        public void putUpgradeMetadata(
                Multimap<UpgradeMetadataRow, ? extends UpgradeMetadataNamedColumnValue<?>> newRows) {
            // OTHERWISE IT WOULD BE TURTLES ON ELEPHANTS ON TURTLES ON ELEPHANTS
        }
    };
    return UpgradeTableFactory.of(ImmutableList
            .<Function<? super Transaction, SharedTriggers>>of(Functions.constant(sharedTriggers)));
}

From source file:brooklyn.entity.basic.EntityTasks.java

/** creates an (unsubmitted) task which waits for the attribute to satisfy the given predicate,
 * throwing if it times out or becomes unmanaged */
public static <T> Task<Boolean> requiringAttributeEventually(Entity entity, AttributeSensor<T> sensor,
        Predicate<T> condition, Duration timeout) {
    return DependentConfiguration.builder().attributeWhenReady(entity, sensor).readiness(condition)
            .postProcess(Functions.constant(true)).timeout(timeout).onTimeoutThrow().onUnmanagedThrow().build();
}

From source file:com.palantir.atlasdb.transaction.impl.SweepStrategyManagers.java

private static RecomputingSupplier<Map<String, SweepStrategy>> getConservativeManager(
        final KeyValueService kvs) {
    return RecomputingSupplier.create(new Supplier<Map<String, SweepStrategy>>() {
        @Override/*from   w w  w. j  a  va  2s. c o m*/
        public Map<String, SweepStrategy> get() {
            Set<String> tables = kvs.getAllTableNames();
            return Maps.asMap(tables, Functions.constant(SweepStrategy.CONSERVATIVE));
        }
    });
}

From source file:de.bund.bfr.knime.gis.BackwardUtils.java

public static Map<String, Map<String, Point2D>> toOldCollapseFormat(Map<String, Set<String>> map) {
    Map<String, Map<String, Point2D>> result = new LinkedHashMap<>();

    map.forEach((key, value) -> result.put(key,
            new LinkedHashMap<>(Maps.asMap(value, Functions.constant((Point2D) null)))));

    return result;
}

From source file:org.jclouds.scaleup.storage.blobstore.config.ScaleUpStorageBlobStoreContextModule.java

@SuppressWarnings({ "rawtypes", "unchecked" })
@Override/* ww w  .  ja v  a 2 s. c om*/
protected void bindBucketLocationStrategy() {
    bind(new TypeLiteral<Function<BucketMetadata, Location>>() {
    }).toInstance((Function) Functions.constant(null));
}

From source file:com.palantir.atlasdb.transaction.impl.ConflictDetectionManagers.java

private static RecomputingSupplier<Map<String, ConflictHandler>> getNoConflictDetectSupplier(
        final KeyValueService kvs) {
    return RecomputingSupplier.create(new Supplier<Map<String, ConflictHandler>>() {
        @Override//from  w ww  .  jav  a 2s .c o m
        public Map<String, ConflictHandler> get() {
            Set<String> tables = kvs.getAllTableNames();
            return Maps.asMap(tables, Functions.constant(ConflictHandler.IGNORE_ALL));
        }
    });
}

From source file:org.gradle.launcher.daemon.server.DaemonIdleTimeoutExpirationStrategy.java

public DaemonIdleTimeoutExpirationStrategy(Daemon daemon, int idleTimeout, TimeUnit timeUnit) {
    this(daemon, Functions.constant(timeUnit.toMillis(idleTimeout)));
}