Example usage for java.util.concurrent RunnableFuture run

Introduction

In this page you can find the example usage for java.util.concurrent RunnableFuture run.

Prototype

void run();

Source Link

Document

Sets this Future to the result of its computation unless it has been cancelled.

Usage

From source file:net.dryuf.concurrent.benchmark.BenchmarkSupport.java

public static void threadedRunFutures(RunnableFuture<Integer>[] array) {
    Thread t = new Thread(() -> {
        for (RunnableFuture<Integer> v : array) {
            v.run();
        }//from  www  . ja  v  a2s. c o  m
    });
    t.start();
    try {
        t.join();
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

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From source file:org.apache.flink.runtime.state.StateSnapshotCompressionTest.java

private void snapshotRestoreRoundtrip(boolean useCompression) throws Exception {

    ExecutionConfig executionConfig = new ExecutionConfig();
    executionConfig.setUseSnapshotCompression(useCompression);

    KeyedStateHandle stateHandle = null;

    ValueStateDescriptor<String> stateDescriptor = new ValueStateDescriptor<>("test", String.class);
    stateDescriptor.initializeSerializerUnlessSet(executionConfig);

    AbstractKeyedStateBackend<String> stateBackend = new HeapKeyedStateBackend<>(
            mock(TaskKvStateRegistry.class), StringSerializer.INSTANCE,
            StateSnapshotCompressionTest.class.getClassLoader(), 16, new KeyGroupRange(0, 15), true,
            executionConfig, TestLocalRecoveryConfig.disabled(), mock(HeapPriorityQueueSetFactory.class),
            TtlTimeProvider.DEFAULT);//w ww  . j  a  v  a 2 s  . c  o m

    try {

        InternalValueState<String, VoidNamespace, String> state = stateBackend
                .createInternalState(new VoidNamespaceSerializer(), stateDescriptor);

        stateBackend.setCurrentKey("A");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        state.update("42");
        stateBackend.setCurrentKey("B");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        state.update("43");
        stateBackend.setCurrentKey("C");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        state.update("44");
        stateBackend.setCurrentKey("D");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        state.update("45");
        CheckpointStreamFactory streamFactory = new MemCheckpointStreamFactory(4 * 1024 * 1024);
        RunnableFuture<SnapshotResult<KeyedStateHandle>> snapshot = stateBackend.snapshot(0L, 0L, streamFactory,
                CheckpointOptions.forCheckpointWithDefaultLocation());
        snapshot.run();
        SnapshotResult<KeyedStateHandle> snapshotResult = snapshot.get();
        stateHandle = snapshotResult.getJobManagerOwnedSnapshot();

    } finally {
        IOUtils.closeQuietly(stateBackend);
        stateBackend.dispose();
    }

    executionConfig = new ExecutionConfig();

    stateBackend = new HeapKeyedStateBackend<>(mock(TaskKvStateRegistry.class), StringSerializer.INSTANCE,
            StateSnapshotCompressionTest.class.getClassLoader(), 16, new KeyGroupRange(0, 15), true,
            executionConfig, TestLocalRecoveryConfig.disabled(), mock(HeapPriorityQueueSetFactory.class),
            TtlTimeProvider.DEFAULT);
    try {

        stateBackend.restore(StateObjectCollection.singleton(stateHandle));

        InternalValueState<String, VoidNamespace, String> state = stateBackend
                .createInternalState(new VoidNamespaceSerializer(), stateDescriptor);

        stateBackend.setCurrentKey("A");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        Assert.assertEquals("42", state.value());
        stateBackend.setCurrentKey("B");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        Assert.assertEquals("43", state.value());
        stateBackend.setCurrentKey("C");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        Assert.assertEquals("44", state.value());
        stateBackend.setCurrentKey("D");
        state.setCurrentNamespace(VoidNamespace.INSTANCE);
        Assert.assertEquals("45", state.value());

    } finally {
        IOUtils.closeQuietly(stateBackend);
        stateBackend.dispose();
    }
}

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