Java Code Examples for org.apache.flink.api.common.state.ListStateDescriptor#getElementSerializer()

The following examples show how to use org.apache.flink.api.common.state.ListStateDescriptor#getElementSerializer() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: StateDescriptorPassingTest.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
private void validateListStateDescriptorConfigured(SingleOutputStreamOperator<?> result) {
	OneInputTransformation<?, ?> transform = (OneInputTransformation<?, ?>) result.getTransformation();
	WindowOperator<?, ?, ?, ?, ?> op = (WindowOperator<?, ?, ?, ?, ?>) transform.getOperator();
	StateDescriptor<?, ?> descr = op.getStateDescriptor();

	assertTrue(descr instanceof ListStateDescriptor);

	ListStateDescriptor<?> listDescr = (ListStateDescriptor<?>) descr;

	// this would be the first statement to fail if state descriptors were not properly initialized
	TypeSerializer<?> serializer = listDescr.getSerializer();
	assertTrue(serializer instanceof ListSerializer);

	TypeSerializer<?> elementSerializer = listDescr.getElementSerializer();
	assertTrue(elementSerializer instanceof KryoSerializer);

	Kryo kryo = ((KryoSerializer<?>) elementSerializer).getKryo();

	assertTrue("serializer registration was not properly passed on",
			kryo.getSerializer(File.class) instanceof JavaSerializer);
}
Example 2
Source File: StreamingRuntimeContextTest.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
@Test
public void testListStateInstantiation() throws Exception {

	final ExecutionConfig config = new ExecutionConfig();
	config.registerKryoType(Path.class);

	final AtomicReference<Object> descriptorCapture = new AtomicReference<>();

	StreamingRuntimeContext context = new StreamingRuntimeContext(
			createDescriptorCapturingMockOp(descriptorCapture, config),
			createMockEnvironment(),
			Collections.<String, Accumulator<?, ?>>emptyMap());

	ListStateDescriptor<TaskInfo> descr = new ListStateDescriptor<>("name", TaskInfo.class);
	context.getListState(descr);

	ListStateDescriptor<?> descrIntercepted = (ListStateDescriptor<?>) descriptorCapture.get();
	TypeSerializer<?> serializer = descrIntercepted.getSerializer();

	// check that the Path class is really registered, i.e., the execution config was applied
	assertTrue(serializer instanceof ListSerializer);

	TypeSerializer<?> elementSerializer = descrIntercepted.getElementSerializer();
	assertTrue(elementSerializer instanceof KryoSerializer);
	assertTrue(((KryoSerializer<?>) elementSerializer).getKryo().getRegistration(Path.class).getId() > 0);
}
Example 3
Source File: StateDescriptorPassingTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
private void validateListStateDescriptorConfigured(SingleOutputStreamOperator<?> result) {
	OneInputTransformation<?, ?> transform = (OneInputTransformation<?, ?>) result.getTransformation();
	WindowOperator<?, ?, ?, ?, ?> op = (WindowOperator<?, ?, ?, ?, ?>) transform.getOperator();
	StateDescriptor<?, ?> descr = op.getStateDescriptor();

	assertTrue(descr instanceof ListStateDescriptor);

	ListStateDescriptor<?> listDescr = (ListStateDescriptor<?>) descr;

	// this would be the first statement to fail if state descriptors were not properly initialized
	TypeSerializer<?> serializer = listDescr.getSerializer();
	assertTrue(serializer instanceof ListSerializer);

	TypeSerializer<?> elementSerializer = listDescr.getElementSerializer();
	assertTrue(elementSerializer instanceof KryoSerializer);

	Kryo kryo = ((KryoSerializer<?>) elementSerializer).getKryo();

	assertTrue("serializer registration was not properly passed on",
			kryo.getSerializer(File.class) instanceof JavaSerializer);
}
Example 4
Source File: StreamingRuntimeContextTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Test
public void testListStateInstantiation() throws Exception {

	final ExecutionConfig config = new ExecutionConfig();
	config.registerKryoType(Path.class);

	final AtomicReference<Object> descriptorCapture = new AtomicReference<>();

	StreamingRuntimeContext context = new StreamingRuntimeContext(
			createDescriptorCapturingMockOp(descriptorCapture, config),
			createMockEnvironment(),
			Collections.<String, Accumulator<?, ?>>emptyMap());

	ListStateDescriptor<TaskInfo> descr = new ListStateDescriptor<>("name", TaskInfo.class);
	context.getListState(descr);

	ListStateDescriptor<?> descrIntercepted = (ListStateDescriptor<?>) descriptorCapture.get();
	TypeSerializer<?> serializer = descrIntercepted.getSerializer();

	// check that the Path class is really registered, i.e., the execution config was applied
	assertTrue(serializer instanceof ListSerializer);

	TypeSerializer<?> elementSerializer = descrIntercepted.getElementSerializer();
	assertTrue(elementSerializer instanceof KryoSerializer);
	assertTrue(((KryoSerializer<?>) elementSerializer).getKryo().getRegistration(Path.class).getId() > 0);
}
Example 5
Source File: StateDescriptorPassingTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
private void validateListStateDescriptorConfigured(SingleOutputStreamOperator<?> result) {
	OneInputTransformation<?, ?> transform = (OneInputTransformation<?, ?>) result.getTransformation();
	WindowOperator<?, ?, ?, ?, ?> op = (WindowOperator<?, ?, ?, ?, ?>) transform.getOperator();
	StateDescriptor<?, ?> descr = op.getStateDescriptor();

	assertTrue(descr instanceof ListStateDescriptor);

	ListStateDescriptor<?> listDescr = (ListStateDescriptor<?>) descr;

	// this would be the first statement to fail if state descriptors were not properly initialized
	TypeSerializer<?> serializer = listDescr.getSerializer();
	assertTrue(serializer instanceof ListSerializer);

	TypeSerializer<?> elementSerializer = listDescr.getElementSerializer();
	assertTrue(elementSerializer instanceof KryoSerializer);

	Kryo kryo = ((KryoSerializer<?>) elementSerializer).getKryo();

	assertTrue("serializer registration was not properly passed on",
			kryo.getSerializer(File.class) instanceof JavaSerializer);
}
Example 6
Source File: StreamingRuntimeContextTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Test
public void testListStateInstantiation() throws Exception {

	final ExecutionConfig config = new ExecutionConfig();
	config.registerKryoType(Path.class);

	final AtomicReference<Object> descriptorCapture = new AtomicReference<>();

	StreamingRuntimeContext context = createRuntimeContext(descriptorCapture, config);

	ListStateDescriptor<TaskInfo> descr = new ListStateDescriptor<>("name", TaskInfo.class);
	context.getListState(descr);

	ListStateDescriptor<?> descrIntercepted = (ListStateDescriptor<?>) descriptorCapture.get();
	TypeSerializer<?> serializer = descrIntercepted.getSerializer();

	// check that the Path class is really registered, i.e., the execution config was applied
	assertTrue(serializer instanceof ListSerializer);

	TypeSerializer<?> elementSerializer = descrIntercepted.getElementSerializer();
	assertTrue(elementSerializer instanceof KryoSerializer);
	assertTrue(((KryoSerializer<?>) elementSerializer).getKryo().getRegistration(Path.class).getId() > 0);
}
Example 7
Source File: TtlStateFactory.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
private <T> IS createListState() throws Exception {
	ListStateDescriptor<T> listStateDesc = (ListStateDescriptor<T>) stateDesc;
	ListStateDescriptor<TtlValue<T>> ttlDescriptor = new ListStateDescriptor<>(
		stateDesc.getName(), new TtlSerializer<>(LongSerializer.INSTANCE, listStateDesc.getElementSerializer()));
	return (IS) new TtlListState<>(createTtlStateContext(ttlDescriptor));
}
Example 8
Source File: TtlStateFactory.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
private <T> IS createListState() throws Exception {
	ListStateDescriptor<T> listStateDesc = (ListStateDescriptor<T>) stateDesc;
	ListStateDescriptor<TtlValue<T>> ttlDescriptor = new ListStateDescriptor<>(
		stateDesc.getName(), new TtlSerializer<>(LongSerializer.INSTANCE, listStateDesc.getElementSerializer()));
	return (IS) new TtlListState<>(createTtlStateContext(ttlDescriptor));
}
Example 9
Source File: TtlStateFactory.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
private <T> IS createListState() throws Exception {
	ListStateDescriptor<T> listStateDesc = (ListStateDescriptor<T>) stateDesc;
	ListStateDescriptor<TtlValue<T>> ttlDescriptor = new ListStateDescriptor<>(
		stateDesc.getName(), new TtlSerializer<>(LongSerializer.INSTANCE, listStateDesc.getElementSerializer()));
	return (IS) new TtlListState<>(createTtlStateContext(ttlDescriptor));
}