Java Code Examples for org.apache.flink.api.common.state.MapStateDescriptor#initializeSerializerUnlessSet()

The following examples show how to use org.apache.flink.api.common.state.MapStateDescriptor#initializeSerializerUnlessSet() . 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: DefaultKeyedStateStore.java From flink with Apache License 2.0

5 votes

@Override
public <UK, UV> MapState<UK, UV> getMapState(MapStateDescriptor<UK, UV> stateProperties) {
	requireNonNull(stateProperties, "The state properties must not be null");
	try {
		stateProperties.initializeSerializerUnlessSet(executionConfig);
		MapState<UK, UV> originalState = getPartitionedState(stateProperties);
		return new UserFacingMapState<>(originalState);
	} catch (Exception e) {
		throw new RuntimeException("Error while getting state", e);
	}
}

Example 2

Source File: CoBroadcastWithNonKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 3

Source File: CoBroadcastWithKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 4

Source File: CoBroadcastWithKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public <K, V> BroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	BroadcastState<K, V> state = (BroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 5

Source File: CoBroadcastWithNonKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 6

Source File: CoBroadcastWithKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 7

Source File: CoBroadcastWithKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public  <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 8

Source File: CoBroadcastWithKeyedOperator.java From Flink-CEPplus with Apache License 2.0

5 votes

@Override
public <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 9

Source File: CoBroadcastWithKeyedOperator.java From Flink-CEPplus with Apache License 2.0

5 votes

@Override
public  <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 10

Source File: CoBroadcastWithNonKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public <K, V> BroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	BroadcastState<K, V> state = (BroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 11

Source File: CoBroadcastWithNonKeyedOperator.java From Flink-CEPplus with Apache License 2.0

5 votes

@Override
public <K, V> ReadOnlyBroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	ReadOnlyBroadcastState<K, V> state = (ReadOnlyBroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 12

Source File: CoBroadcastWithNonKeyedOperator.java From Flink-CEPplus with Apache License 2.0

5 votes

@Override
public <K, V> BroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	BroadcastState<K, V> state = (BroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 13

Source File: CoBroadcastWithKeyedOperator.java From flink with Apache License 2.0

5 votes

@Override
public <K, V> BroadcastState<K, V> getBroadcastState(MapStateDescriptor<K, V> stateDescriptor) {
	Preconditions.checkNotNull(stateDescriptor);

	stateDescriptor.initializeSerializerUnlessSet(config);
	BroadcastState<K, V> state = (BroadcastState<K, V>) states.get(stateDescriptor);
	if (state == null) {
		throw new IllegalArgumentException("The requested state does not exist. " +
				"Check for typos in your state descriptor, or specify the state descriptor " +
				"in the datastream.broadcast(...) call if you forgot to register it.");
	}
	return state;
}

Example 14

Source File: DefaultKeyedStateStore.java From Flink-CEPplus with Apache License 2.0

5 votes

@Override
public <UK, UV> MapState<UK, UV> getMapState(MapStateDescriptor<UK, UV> stateProperties) {
	requireNonNull(stateProperties, "The state properties must not be null");
	try {
		stateProperties.initializeSerializerUnlessSet(executionConfig);
		MapState<UK, UV> originalState = getPartitionedState(stateProperties);
		return new UserFacingMapState<>(originalState);
	} catch (Exception e) {
		throw new RuntimeException("Error while getting state", e);
	}
}

Example 15

Source File: StreamingRuntimeContext.java From Flink-CEPplus with Apache License 2.0

4 votes

@Override
public <UK, UV> MapState<UK, UV> getMapState(MapStateDescriptor<UK, UV> stateProperties) {
	KeyedStateStore keyedStateStore = checkPreconditionsAndGetKeyedStateStore(stateProperties);
	stateProperties.initializeSerializerUnlessSet(getExecutionConfig());
	return keyedStateStore.getMapState(stateProperties);
}

Example 16

Source File: DefaultOperatorStateBackend.java From flink with Apache License 2.0

4 votes

@SuppressWarnings("unchecked")
@Override
public <K, V> BroadcastState<K, V> getBroadcastState(final MapStateDescriptor<K, V> stateDescriptor) throws StateMigrationException {

	Preconditions.checkNotNull(stateDescriptor);
	String name = Preconditions.checkNotNull(stateDescriptor.getName());

	BackendWritableBroadcastState<K, V> previous =
		(BackendWritableBroadcastState<K, V>) accessedBroadcastStatesByName.get(name);

	if (previous != null) {
		checkStateNameAndMode(
				previous.getStateMetaInfo().getName(),
				name,
				previous.getStateMetaInfo().getAssignmentMode(),
				OperatorStateHandle.Mode.BROADCAST);
		return previous;
	}

	stateDescriptor.initializeSerializerUnlessSet(getExecutionConfig());
	TypeSerializer<K> broadcastStateKeySerializer = Preconditions.checkNotNull(stateDescriptor.getKeySerializer());
	TypeSerializer<V> broadcastStateValueSerializer = Preconditions.checkNotNull(stateDescriptor.getValueSerializer());

	BackendWritableBroadcastState<K, V> broadcastState =
		(BackendWritableBroadcastState<K, V>) registeredBroadcastStates.get(name);

	if (broadcastState == null) {
		broadcastState = new HeapBroadcastState<>(
				new RegisteredBroadcastStateBackendMetaInfo<>(
						name,
						OperatorStateHandle.Mode.BROADCAST,
						broadcastStateKeySerializer,
						broadcastStateValueSerializer));
		registeredBroadcastStates.put(name, broadcastState);
	} else {
		// has restored state; check compatibility of new state access

		checkStateNameAndMode(
				broadcastState.getStateMetaInfo().getName(),
				name,
				broadcastState.getStateMetaInfo().getAssignmentMode(),
				OperatorStateHandle.Mode.BROADCAST);

		RegisteredBroadcastStateBackendMetaInfo<K, V> restoredBroadcastStateMetaInfo = broadcastState.getStateMetaInfo();

		// check whether new serializers are incompatible
		TypeSerializerSchemaCompatibility<K> keyCompatibility =
			restoredBroadcastStateMetaInfo.updateKeySerializer(broadcastStateKeySerializer);
		if (keyCompatibility.isIncompatible()) {
			throw new StateMigrationException("The new key typeSerializer for broadcast state must not be incompatible.");
		}

		TypeSerializerSchemaCompatibility<V> valueCompatibility =
			restoredBroadcastStateMetaInfo.updateValueSerializer(broadcastStateValueSerializer);
		if (valueCompatibility.isIncompatible()) {
			throw new StateMigrationException("The new value typeSerializer for broadcast state must not be incompatible.");
		}

		broadcastState.setStateMetaInfo(restoredBroadcastStateMetaInfo);
	}

	accessedBroadcastStatesByName.put(name, broadcastState);
	return broadcastState;
}

Example 17

Source File: HeapKeyedStateBackendSnapshotMigrationTest.java From flink with Apache License 2.0

4 votes

@Test
public void testMapStateMigrationAfterHashMapSerRemoval() throws Exception {
	ClassLoader cl = getClass().getClassLoader();
	URL resource = cl.getResource("heap_keyed_statebackend_1_5_map.snapshot");

	Preconditions.checkNotNull(resource, "Binary snapshot resource not found!");

	final SnapshotResult<KeyedStateHandle> stateHandles;
	try (BufferedInputStream bis = new BufferedInputStream((new FileInputStream(resource.getFile())))) {
		stateHandles = InstantiationUtil.deserializeObject(bis, Thread.currentThread().getContextClassLoader());
	}
	final KeyedStateHandle stateHandle = stateHandles.getJobManagerOwnedSnapshot();
	try (final HeapKeyedStateBackend<String> keyedBackend = createKeyedBackend(StateObjectCollection.singleton(stateHandle))) {
		final Integer namespace1 = 1;
		final Integer namespace2 = 2;
		final Integer namespace3 = 3;

		final MapStateDescriptor<Long, Long> stateDescr = new MapStateDescriptor<>("my-map-state", Long.class, Long.class);
		stateDescr.initializeSerializerUnlessSet(new ExecutionConfig());

		InternalMapState<String, Integer, Long, Long> state = keyedBackend.createInternalState(IntSerializer.INSTANCE, stateDescr);

		keyedBackend.setCurrentKey("abc");
		state.setCurrentNamespace(namespace1);
		assertEquals(33L, (long) state.get(33L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(2, getStateSize(state));

		state.setCurrentNamespace(namespace2);
		assertEquals(22L, (long) state.get(22L));
		assertEquals(11L, (long) state.get(11L));
		assertEquals(2, getStateSize(state));

		state.setCurrentNamespace(namespace3);
		assertEquals(44L, (long) state.get(44L));
		assertEquals(1, getStateSize(state));

		keyedBackend.setCurrentKey("def");
		state.setCurrentNamespace(namespace1);
		assertEquals(11L, (long) state.get(11L));
		assertEquals(44L, (long) state.get(44L));
		assertEquals(2, getStateSize(state));

		state.setCurrentNamespace(namespace3);
		assertEquals(22L, (long) state.get(22L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(33L, (long) state.get(33L));
		assertEquals(3, getStateSize(state));

		keyedBackend.setCurrentKey("jkl");
		state.setCurrentNamespace(namespace1);
		assertEquals(11L, (long) state.get(11L));
		assertEquals(22L, (long) state.get(22L));
		assertEquals(33L, (long) state.get(33L));
		assertEquals(44L, (long) state.get(44L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(5, getStateSize(state));

		keyedBackend.setCurrentKey("mno");
		state.setCurrentNamespace(namespace3);
		assertEquals(11L, (long) state.get(11L));
		assertEquals(22L, (long) state.get(22L));
		assertEquals(33L, (long) state.get(33L));
		assertEquals(44L, (long) state.get(44L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(5, getStateSize(state));

		RunnableFuture<SnapshotResult<KeyedStateHandle>> snapshot = keyedBackend.snapshot(
				1L,
				1L,
				new MemCheckpointStreamFactory(4 * 1024 * 1024),
				CheckpointOptions.forCheckpointWithDefaultLocation());

		snapshot.run();
	}
}

Example 18

Source File: StreamingRuntimeContext.java From flink with Apache License 2.0

4 votes

@Override
public <UK, UV> MapState<UK, UV> getMapState(MapStateDescriptor<UK, UV> stateProperties) {
	KeyedStateStore keyedStateStore = checkPreconditionsAndGetKeyedStateStore(stateProperties);
	stateProperties.initializeSerializerUnlessSet(getExecutionConfig());
	return keyedStateStore.getMapState(stateProperties);
}

Example 19

Source File: StreamingRuntimeContext.java From flink with Apache License 2.0

4 votes

@Override
public <UK, UV> MapState<UK, UV> getMapState(MapStateDescriptor<UK, UV> stateProperties) {
	KeyedStateStore keyedStateStore = checkPreconditionsAndGetKeyedStateStore(stateProperties);
	stateProperties.initializeSerializerUnlessSet(getExecutionConfig());
	return keyedStateStore.getMapState(stateProperties);
}

Example 20

Source File: HeapKeyedStateBackendSnapshotMigrationTest.java From flink with Apache License 2.0

4 votes

@Test
public void testMapStateMigrationAfterHashMapSerRemoval() throws Exception {
	ClassLoader cl = getClass().getClassLoader();
	URL resource = cl.getResource("heap_keyed_statebackend_1_5_map.snapshot");

	Preconditions.checkNotNull(resource, "Binary snapshot resource not found!");

	final SnapshotResult<KeyedStateHandle> stateHandles;
	try (BufferedInputStream bis = new BufferedInputStream((new FileInputStream(resource.getFile())))) {
		stateHandles = InstantiationUtil.deserializeObject(bis, Thread.currentThread().getContextClassLoader());
	}
	final KeyedStateHandle stateHandle = stateHandles.getJobManagerOwnedSnapshot();
	try (final HeapKeyedStateBackend<String> keyedBackend = createKeyedBackend(StateObjectCollection.singleton(stateHandle))) {
		final Integer namespace1 = 1;
		final Integer namespace2 = 2;
		final Integer namespace3 = 3;

		final MapStateDescriptor<Long, Long> stateDescr = new MapStateDescriptor<>("my-map-state", Long.class, Long.class);
		stateDescr.initializeSerializerUnlessSet(new ExecutionConfig());

		InternalMapState<String, Integer, Long, Long> state = keyedBackend.createInternalState(IntSerializer.INSTANCE, stateDescr);

		keyedBackend.setCurrentKey("abc");
		state.setCurrentNamespace(namespace1);
		assertEquals(33L, (long) state.get(33L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(2, getStateSize(state));

		state.setCurrentNamespace(namespace2);
		assertEquals(22L, (long) state.get(22L));
		assertEquals(11L, (long) state.get(11L));
		assertEquals(2, getStateSize(state));

		state.setCurrentNamespace(namespace3);
		assertEquals(44L, (long) state.get(44L));
		assertEquals(1, getStateSize(state));

		keyedBackend.setCurrentKey("def");
		state.setCurrentNamespace(namespace1);
		assertEquals(11L, (long) state.get(11L));
		assertEquals(44L, (long) state.get(44L));
		assertEquals(2, getStateSize(state));

		state.setCurrentNamespace(namespace3);
		assertEquals(22L, (long) state.get(22L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(33L, (long) state.get(33L));
		assertEquals(3, getStateSize(state));

		keyedBackend.setCurrentKey("jkl");
		state.setCurrentNamespace(namespace1);
		assertEquals(11L, (long) state.get(11L));
		assertEquals(22L, (long) state.get(22L));
		assertEquals(33L, (long) state.get(33L));
		assertEquals(44L, (long) state.get(44L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(5, getStateSize(state));

		keyedBackend.setCurrentKey("mno");
		state.setCurrentNamespace(namespace3);
		assertEquals(11L, (long) state.get(11L));
		assertEquals(22L, (long) state.get(22L));
		assertEquals(33L, (long) state.get(33L));
		assertEquals(44L, (long) state.get(44L));
		assertEquals(55L, (long) state.get(55L));
		assertEquals(5, getStateSize(state));

		RunnableFuture<SnapshotResult<KeyedStateHandle>> snapshot = keyedBackend.snapshot(
				1L,
				1L,
				new MemCheckpointStreamFactory(4 * 1024 * 1024),
				CheckpointOptions.forCheckpointWithDefaultLocation());

		snapshot.run();
	}
}