Examples with ObjectOutputStream java.io.ObjectOutputStream used on opensource projects

Example 91 with ObjectOutputStream

use of java.io.ObjectOutputStream in project platform_frameworks_base by android.

the class Parcel method writeSerializable.

/**
     * Write a generic serializable object in to a Parcel.  It is strongly
     * recommended that this method be avoided, since the serialization
     * overhead is extremely large, and this approach will be much slower than
     * using the other approaches to writing data in to a Parcel.
     */
public final void writeSerializable(Serializable s) {
    if (s == null) {
        writeString(null);
        return;
    }
    String name = s.getClass().getName();
    writeString(name);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(s);
        oos.close();
        writeByteArray(baos.toByteArray());
    } catch (IOException ioe) {
        throw new RuntimeException("Parcelable encountered " + "IOException writing serializable object (name = " + name + ")", ioe);
    }
}

Example 92 with ObjectOutputStream

use of java.io.ObjectOutputStream in project carat by amplab.

the class CaratSampleDB method addSample.

/**
     * Add a sample to the database.
     * 
     * @return rowId or -1 if failed
     */
private long addSample(Sample s) {
    Log.d("CaratSampleDB.addSample()", "The sample's battery level=" + s.getBatteryLevel());
    ContentValues initialValues = new ContentValues();
    initialValues.put(COLUMN_TIMESTAMP, s.timestamp);
    // Write the sample hashmap as a blob
    if (s != null) {
        try {
            ByteArrayOutputStream bo = new ByteArrayOutputStream();
            ObjectOutputStream oo = new ObjectOutputStream(bo);
            oo.writeObject(SampleReader.writeSample(s));
            initialValues.put(COLUMN_SAMPLE, bo.toByteArray());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return db.insert(SAMPLES_VIRTUAL_TABLE, null, initialValues);
}

Example 93 with ObjectOutputStream

use of java.io.ObjectOutputStream in project flink by apache.

the class MetricDumpSerializerTest method testJavaSerialization.

@Test
public void testJavaSerialization() throws IOException {
    MetricDumpSerialization.MetricDumpSerializer serializer = new MetricDumpSerialization.MetricDumpSerializer();
    final ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
    final ObjectOutputStream oos = new ObjectOutputStream(bos);
    oos.writeObject(serializer.serialize(new HashMap<Counter, Tuple2<QueryScopeInfo, String>>(), new HashMap<Gauge<?>, Tuple2<QueryScopeInfo, String>>(), new HashMap<Histogram, Tuple2<QueryScopeInfo, String>>(), new HashMap<Meter, Tuple2<QueryScopeInfo, String>>()));
}

Example 94 with ObjectOutputStream

use of java.io.ObjectOutputStream in project flink by apache.

the class KeyedOneInputStreamOperatorTestHarness method snapshotLegacy.

/**
	 *
	 */
@Override
public StreamStateHandle snapshotLegacy(long checkpointId, long timestamp) throws Exception {
    // simply use an in-memory handle
    MemoryStateBackend backend = new MemoryStateBackend();
    CheckpointStreamFactory streamFactory = backend.createStreamFactory(new JobID(), "test_op");
    CheckpointStreamFactory.CheckpointStateOutputStream outStream = streamFactory.createCheckpointStateOutputStream(checkpointId, timestamp);
    if (operator instanceof StreamCheckpointedOperator) {
        ((StreamCheckpointedOperator) operator).snapshotState(outStream, checkpointId, timestamp);
    }
    if (keyedStateBackend != null) {
        RunnableFuture<KeyGroupsStateHandle> keyedSnapshotRunnable = keyedStateBackend.snapshot(checkpointId, timestamp, streamFactory, CheckpointOptions.forFullCheckpoint());
        if (!keyedSnapshotRunnable.isDone()) {
            Thread runner = new Thread(keyedSnapshotRunnable);
            runner.start();
        }
        outStream.write(1);
        ObjectOutputStream oos = new ObjectOutputStream(outStream);
        oos.writeObject(keyedSnapshotRunnable.get());
        oos.flush();
    } else {
        outStream.write(0);
    }
    return outStream.closeAndGetHandle();
}

Example 95 with ObjectOutputStream

use of java.io.ObjectOutputStream in project flink by apache.

the class CommonTestUtils method createCopySerializable.

/**
	 * Creates a copy of an object via Java Serialization.
	 *
	 * @param original The original object.
	 * @return The copied object.
	 */
public static <T extends java.io.Serializable> T createCopySerializable(T original) throws IOException {
    if (original == null) {
        throw new IllegalArgumentException();
    }
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(original);
    oos.close();
    baos.close();
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    try (ObjectInputStream ois = new ObjectInputStream(bais)) {
        @SuppressWarnings("unchecked") T copy = (T) ois.readObject();
        return copy;
    } catch (ClassNotFoundException e) {
        throw new IOException(e);
    }
}