Java Code Examples for org.apache.flink.api.common.typeutils.TypeSerializerSnapshot#writeVersionedSnapshot()

/**
 * This method returns the bytes of a serialized {@link KryoSerializerSnapshot}, that contains a Kryo registration
 * of a class that does not exists in the current classpath.
 */
private static byte[] unLoadableSnapshotBytes() throws IOException {
	final ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();

	ClassLoader tempClassLoader =
		new URLClassLoader(new URL[0], KryoSerializerSnapshotTest.class.getClassLoader());
	try {
		Thread.currentThread().setContextClassLoader(tempClassLoader);

		ExecutionConfig conf = registerClassThatIsNotInClassPath(tempClassLoader);

		KryoSerializer<Animal> previousSerializer = new KryoSerializer<>(Animal.class, conf);
		TypeSerializerSnapshot<Animal> previousSnapshot = previousSerializer.snapshotConfiguration();

		DataOutputSerializer out = new DataOutputSerializer(4096);
		TypeSerializerSnapshot.writeVersionedSnapshot(out, previousSnapshot);
		return out.getCopyOfBuffer();
	}
	finally {
		Thread.currentThread().setContextClassLoader(originalClassLoader);
	}
}
 

private String getOrCreateSerializerString() {
	if (serializerString == null) {
		final DataOutputSerializer outputSerializer = new DataOutputSerializer(128);
		try {
			TypeSerializerSnapshot.writeVersionedSnapshot(outputSerializer, serializer.snapshotConfiguration());
			serializerString = EncodingUtils.encodeBytesToBase64(outputSerializer.getCopyOfBuffer());
			return serializerString;
		} catch (Exception e) {
			throw new TableException(String.format(
				"Unable to generate a string representation of the serializer snapshot of '%s' " +
					"describing the class '%s' for the ANY type.",
				serializer.getClass().getName(),
				clazz.toString()), e);
		}
	}
	return serializerString;
}
 

/**
 * This method returns the bytes of a serialized {@link KryoSerializerSnapshot}, that contains a Kryo registration
 * of a class that does not exists in the current classpath.
 */
private static byte[] unLoadableSnapshotBytes() throws IOException {
	final ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();

	final CommonTestUtils.ObjectAndClassLoader outsideClassLoading = CommonTestUtils.createObjectFromNewClassLoader();

	try {
		Thread.currentThread().setContextClassLoader(outsideClassLoading.getClassLoader());

		ExecutionConfig conf = new ExecutionConfig();
		conf.registerKryoType(outsideClassLoading.getObject().getClass());

		KryoSerializer<Animal> previousSerializer = new KryoSerializer<>(Animal.class, conf);
		TypeSerializerSnapshot<Animal> previousSnapshot = previousSerializer.snapshotConfiguration();

		DataOutputSerializer out = new DataOutputSerializer(4096);
		TypeSerializerSnapshot.writeVersionedSnapshot(out, previousSnapshot);
		return out.getCopyOfBuffer();
	}
	finally {
		Thread.currentThread().setContextClassLoader(originalClassLoader);
	}
}
 

/**
 * Returns the serialized {@link TypeSerializerSnapshot} in Base64 encoding of this raw type.
 */
public String getSerializerString() {
	if (serializerString == null) {
		final DataOutputSerializer outputSerializer = new DataOutputSerializer(128);
		try {
			TypeSerializerSnapshot.writeVersionedSnapshot(outputSerializer, serializer.snapshotConfiguration());
			serializerString = EncodingUtils.encodeBytesToBase64(outputSerializer.getCopyOfBuffer());
			return serializerString;
		} catch (Exception e) {
			throw new TableException(String.format(
				"Unable to generate a string representation of the serializer snapshot of '%s' " +
					"describing the class '%s' for the RAW type.",
				serializer.getClass().getName(),
				clazz.toString()), e);
		}
	}
	return serializerString;
}
 

/**
 * This method returns the bytes of a serialized {@link KryoSerializerSnapshot}, that contains a Kryo registration
 * of a class that does not exists in the current classpath.
 */
private static byte[] unLoadableSnapshotBytes() throws IOException {
	final ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();

	final ClassLoaderUtils.ObjectAndClassLoader<Serializable> outsideClassLoading = ClassLoaderUtils.createSerializableObjectFromNewClassLoader();

	try {
		Thread.currentThread().setContextClassLoader(outsideClassLoading.getClassLoader());

		ExecutionConfig conf = new ExecutionConfig();
		conf.registerKryoType(outsideClassLoading.getObject().getClass());

		KryoSerializer<Animal> previousSerializer = new KryoSerializer<>(Animal.class, conf);
		TypeSerializerSnapshot<Animal> previousSnapshot = previousSerializer.snapshotConfiguration();

		DataOutputSerializer out = new DataOutputSerializer(4096);
		TypeSerializerSnapshot.writeVersionedSnapshot(out, previousSnapshot);
		return out.getCopyOfBuffer();
	}
	finally {
		Thread.currentThread().setContextClassLoader(originalClassLoader);
	}
}
 

@Override
protected void writeKeyAndNamespaceSerializers(DataOutputView out) throws IOException {
	TypeSerializerSnapshot.writeVersionedSnapshot(out, timersSnapshot.getKeySerializerSnapshot());
	TypeSerializerSnapshot.writeVersionedSnapshot(out, timersSnapshot.getNamespaceSerializerSnapshot());
}
 

@Override
protected void writeKeyAndNamespaceSerializers(DataOutputView out) throws IOException {
	TypeSerializerSnapshot.writeVersionedSnapshot(out, timersSnapshot.getKeySerializerSnapshot());
	TypeSerializerSnapshot.writeVersionedSnapshot(out, timersSnapshot.getNamespaceSerializerSnapshot());
}
 

@Override
protected void writeKeyAndNamespaceSerializers(DataOutputView out) throws IOException {
	TypeSerializerSnapshot.writeVersionedSnapshot(out, timersSnapshot.getKeySerializerSnapshot());
	TypeSerializerSnapshot.writeVersionedSnapshot(out, timersSnapshot.getNamespaceSerializerSnapshot());
}