org.apache.flink.runtime.state.StateSnapshotTransformer.StateSnapshotTransformFactory Java Examples

The following examples show how to use org.apache.flink.runtime.state.StateSnapshotTransformer.StateSnapshotTransformFactory. 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: MockKeyedStateBackend.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
@SuppressWarnings("unchecked")
private <SV, SEV> StateSnapshotTransformer<SV> getStateSnapshotTransformer(
	StateDescriptor<?, SV> stateDesc,
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory) {
	Optional<StateSnapshotTransformer<SEV>> original = snapshotTransformFactory.createForDeserializedState();
	if (original.isPresent()) {
		if (stateDesc instanceof ListStateDescriptor) {
			return (StateSnapshotTransformer<SV>) new StateSnapshotTransformers.ListStateSnapshotTransformer<>(original.get());
		} else if (stateDesc instanceof MapStateDescriptor) {
			return (StateSnapshotTransformer<SV>) new StateSnapshotTransformers.MapStateSnapshotTransformer<>(original.get());
		} else {
			return (StateSnapshotTransformer<SV>) original.get();
		}
	} else {
		return null;
	}
}
Example #2
Source File: MockKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
@SuppressWarnings("unchecked")
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), TtlStateFactory.class);
		throw new FlinkRuntimeException(message);
	}
	IS state = stateFactory.createInternalState(namespaceSerializer, stateDesc);
	stateSnapshotFilters.put(stateDesc.getName(),
		(StateSnapshotTransformer<Object>) getStateSnapshotTransformer(stateDesc, snapshotTransformFactory));
	((MockInternalKvState<K, N, SV>) state).values = () -> stateValues
		.computeIfAbsent(stateDesc.getName(), n -> new HashMap<>())
		.computeIfAbsent(getCurrentKey(), k -> new HashMap<>());
	return state;
}
Example #3
Source File: MockKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@SuppressWarnings("unchecked")
private <SV, SEV> StateSnapshotTransformer<SV> getStateSnapshotTransformer(
	StateDescriptor<?, SV> stateDesc,
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory) {
	Optional<StateSnapshotTransformer<SEV>> original = snapshotTransformFactory.createForDeserializedState();
	if (original.isPresent()) {
		if (stateDesc instanceof ListStateDescriptor) {
			return (StateSnapshotTransformer<SV>) new StateSnapshotTransformers.ListStateSnapshotTransformer<>(original.get());
		} else if (stateDesc instanceof MapStateDescriptor) {
			return (StateSnapshotTransformer<SV>) new StateSnapshotTransformers.MapStateSnapshotTransformer<>(original.get());
		} else {
			return (StateSnapshotTransformer<SV>) original.get();
		}
	} else {
		return null;
	}
}
Example #4
Source File: RocksDBKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), this.getClass());
		throw new FlinkRuntimeException(message);
	}
	Tuple2<ColumnFamilyHandle, RegisteredKeyValueStateBackendMetaInfo<N, SV>> registerResult = tryRegisterKvStateInformation(
		stateDesc, namespaceSerializer, snapshotTransformFactory);
	return stateFactory.createState(stateDesc, registerResult, RocksDBKeyedStateBackend.this);
}
Example #5
Source File: HeapKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), this.getClass());
		throw new FlinkRuntimeException(message);
	}
	StateTable<K, N, SV> stateTable = tryRegisterStateTable(
		namespaceSerializer, stateDesc, getStateSnapshotTransformFactory(stateDesc, snapshotTransformFactory));
	return stateFactory.createState(stateDesc, stateTable, getKeySerializer());
}
Example #6
Source File: MockKeyedStateBackend.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
@Override
@SuppressWarnings("unchecked")
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), TtlStateFactory.class);
		throw new FlinkRuntimeException(message);
	}
	IS state = stateFactory.createInternalState(namespaceSerializer, stateDesc);
	stateSnapshotFilters.put(stateDesc.getName(),
		(StateSnapshotTransformer<Object>) getStateSnapshotTransformer(stateDesc, snapshotTransformFactory));
	((MockInternalKvState<K, N, SV>) state).values = () -> stateValues
		.computeIfAbsent(stateDesc.getName(), n -> new HashMap<>())
		.computeIfAbsent(getCurrentKey(), k -> new HashMap<>());
	return state;
}
Example #7
Source File: HeapKeyedStateBackend.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
@Override
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), this.getClass());
		throw new FlinkRuntimeException(message);
	}
	StateTable<K, N, SV> stateTable = tryRegisterStateTable(
		namespaceSerializer, stateDesc, getStateSnapshotTransformFactory(stateDesc, snapshotTransformFactory));
	return stateFactory.createState(stateDesc, stateTable, getKeySerializer());
}
Example #8
Source File: HeapKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), this.getClass());
		throw new FlinkRuntimeException(message);
	}
	StateTable<K, N, SV> stateTable = tryRegisterStateTable(
		namespaceSerializer, stateDesc, getStateSnapshotTransformFactory(stateDesc, snapshotTransformFactory));
	return stateFactory.createState(stateDesc, stateTable, getKeySerializer());
}
Example #9
Source File: RocksDBKeyedStateBackend.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
@Override
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), this.getClass());
		throw new FlinkRuntimeException(message);
	}
	Tuple2<ColumnFamilyHandle, RegisteredKeyValueStateBackendMetaInfo<N, SV>> registerResult = tryRegisterKvStateInformation(
		stateDesc, namespaceSerializer, snapshotTransformFactory);
	return stateFactory.createState(stateDesc, registerResult, RocksDBKeyedStateBackend.this);
}
Example #10
Source File: RocksDBKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), this.getClass());
		throw new FlinkRuntimeException(message);
	}
	Tuple2<ColumnFamilyHandle, RegisteredKeyValueStateBackendMetaInfo<N, SV>> registerResult = tryRegisterKvStateInformation(
		stateDesc, namespaceSerializer, snapshotTransformFactory);
	return stateFactory.createState(stateDesc, registerResult, RocksDBKeyedStateBackend.this);
}
Example #11
Source File: MockKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
@SuppressWarnings("unchecked")
@Nonnull
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull StateDescriptor<S, SV> stateDesc,
	@Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) throws Exception {
	StateFactory stateFactory = STATE_FACTORIES.get(stateDesc.getClass());
	if (stateFactory == null) {
		String message = String.format("State %s is not supported by %s",
			stateDesc.getClass(), TtlStateFactory.class);
		throw new FlinkRuntimeException(message);
	}
	IS state = stateFactory.createInternalState(namespaceSerializer, stateDesc);
	stateSnapshotFilters.put(stateDesc.getName(),
		(StateSnapshotTransformer<Object>) getStateSnapshotTransformer(stateDesc, snapshotTransformFactory));
	((MockInternalKvState<K, N, SV>) state).values = () -> stateValues
		.computeIfAbsent(stateDesc.getName(), n -> new HashMap<>())
		.computeIfAbsent(getCurrentKey(), k -> new HashMap<>());
	return state;
}
Example #12
Source File: MockKeyedStateBackend.java    From flink with Apache License 2.0 6 votes vote down vote up 
@SuppressWarnings("unchecked")
private <SV, SEV> StateSnapshotTransformer<SV> getStateSnapshotTransformer(
	StateDescriptor<?, SV> stateDesc,
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory) {
	Optional<StateSnapshotTransformer<SEV>> original = snapshotTransformFactory.createForDeserializedState();
	if (original.isPresent()) {
		if (stateDesc instanceof ListStateDescriptor) {
			return (StateSnapshotTransformer<SV>) new StateSnapshotTransformers.ListStateSnapshotTransformer<>(original.get());
		} else if (stateDesc instanceof MapStateDescriptor) {
			return (StateSnapshotTransformer<SV>) new StateSnapshotTransformers.MapStateSnapshotTransformer<>(original.get());
		} else {
			return (StateSnapshotTransformer<SV>) original.get();
		}
	} else {
		return null;
	}
}
Example #13
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
public RegisteredKeyValueStateBackendMetaInfo(
	@Nonnull StateDescriptor.Type stateType,
	@Nonnull String name,
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull TypeSerializer<S> stateSerializer,
	@Nonnull StateSnapshotTransformFactory<S> stateSnapshotTransformFactory) {

	this(
		stateType,
		name,
		StateSerializerProvider.fromNewRegisteredSerializer(namespaceSerializer),
		StateSerializerProvider.fromNewRegisteredSerializer(stateSerializer),
		stateSnapshotTransformFactory);
}
Example #14
Source File: RocksDBSnapshotTransformFactoryAdaptor.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
private RocksDBListStateSnapshotTransformFactory(
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory,
	TypeSerializer<SEV> elementSerializer) {

	super(snapshotTransformFactory);
	this.elementSerializer = elementSerializer;
}
Example #15
Source File: TtlStateFactory.java    From flink with Apache License 2.0 5 votes vote down vote up 
private StateSnapshotTransformFactory<?> getSnapshotTransformFactory() {
	if (!ttlConfig.getCleanupStrategies().inFullSnapshot()) {
		return StateSnapshotTransformFactory.noTransform();
	} else {
		return new TtlStateSnapshotTransformer.Factory<>(timeProvider, ttl);
	}
}
Example #16
Source File: HeapKeyedStateBackend.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
private <SV, SEV> StateSnapshotTransformFactory<SV> getStateSnapshotTransformFactory(
	StateDescriptor<?, SV> stateDesc,
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory) {
	if (stateDesc instanceof ListStateDescriptor) {
		return (StateSnapshotTransformFactory<SV>) new StateSnapshotTransformers.ListStateSnapshotTransformFactory<>(snapshotTransformFactory);
	} else if (stateDesc instanceof MapStateDescriptor) {
		return (StateSnapshotTransformFactory<SV>) new StateSnapshotTransformers.MapStateSnapshotTransformFactory<>(snapshotTransformFactory);
	} else {
		return (StateSnapshotTransformFactory<SV>) snapshotTransformFactory;
	}
}
Example #17
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
public RegisteredKeyValueStateBackendMetaInfo(
	@Nonnull StateDescriptor.Type stateType,
	@Nonnull String name,
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull TypeSerializer<S> stateSerializer) {

	this(
		stateType,
		name,
		StateSerializerProvider.fromNewRegisteredSerializer(namespaceSerializer),
		StateSerializerProvider.fromNewRegisteredSerializer(stateSerializer),
		StateSnapshotTransformFactory.noTransform());
}
Example #18
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
public RegisteredKeyValueStateBackendMetaInfo(
	@Nonnull StateDescriptor.Type stateType,
	@Nonnull String name,
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull TypeSerializer<S> stateSerializer,
	@Nonnull StateSnapshotTransformFactory<S> stateSnapshotTransformFactory) {

	this(
		stateType,
		name,
		StateSerializerProvider.fromNewRegisteredSerializer(namespaceSerializer),
		StateSerializerProvider.fromNewRegisteredSerializer(stateSerializer),
		stateSnapshotTransformFactory);
}
Example #19
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
public RegisteredKeyValueStateBackendMetaInfo(@Nonnull StateMetaInfoSnapshot snapshot) {
	this(
		StateDescriptor.Type.valueOf(snapshot.getOption(StateMetaInfoSnapshot.CommonOptionsKeys.KEYED_STATE_TYPE)),
		snapshot.getName(),
		StateSerializerProvider.fromPreviousSerializerSnapshot(
			(TypeSerializerSnapshot<N>) Preconditions.checkNotNull(
				snapshot.getTypeSerializerSnapshot(StateMetaInfoSnapshot.CommonSerializerKeys.NAMESPACE_SERIALIZER))),
		StateSerializerProvider.fromPreviousSerializerSnapshot(
			(TypeSerializerSnapshot<S>) Preconditions.checkNotNull(
				snapshot.getTypeSerializerSnapshot(StateMetaInfoSnapshot.CommonSerializerKeys.VALUE_SERIALIZER))),
		StateSnapshotTransformFactory.noTransform());

	Preconditions.checkState(StateMetaInfoSnapshot.BackendStateType.KEY_VALUE == snapshot.getBackendStateType());
}
Example #20
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
private RegisteredKeyValueStateBackendMetaInfo(
	@Nonnull StateDescriptor.Type stateType,
	@Nonnull String name,
	@Nonnull StateSerializerProvider<N> namespaceSerializerProvider,
	@Nonnull StateSerializerProvider<S> stateSerializerProvider,
	@Nonnull StateSnapshotTransformFactory<S> stateSnapshotTransformFactory) {

	super(name);
	this.stateType = stateType;
	this.namespaceSerializerProvider = namespaceSerializerProvider;
	this.stateSerializerProvider = stateSerializerProvider;
	this.stateSnapshotTransformFactory = stateSnapshotTransformFactory;
}
Example #21
Source File: ReductionsTest.java    From stateful-functions with Apache License 2.0 5 votes vote down vote up 
@Nonnull
@Override
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
    @Nonnull TypeSerializer<N> namespaceSerializer,
    @Nonnull StateDescriptor<S, SV> stateDesc,
    @Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) {
  throw new UnsupportedOperationException();
}
Example #22
Source File: ReductionsTest.java    From flink-statefun with Apache License 2.0 5 votes vote down vote up 
@Nonnull
@Override
public <N, SV, SEV, S extends State, IS extends S> IS createInternalState(
    @Nonnull TypeSerializer<N> namespaceSerializer,
    @Nonnull StateDescriptor<S, SV> stateDesc,
    @Nonnull StateSnapshotTransformFactory<SEV> snapshotTransformFactory) {
  throw new UnsupportedOperationException();
}
Example #23
Source File: RocksDBSnapshotTransformFactoryAdaptor.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
static <SV, SEV> StateSnapshotTransformFactory<SV> wrapStateSnapshotTransformFactory(
	StateDescriptor<?, SV> stateDesc,
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory,
	TypeSerializer<SV> stateSerializer) {
	if (stateDesc instanceof ListStateDescriptor) {
		TypeSerializer<SEV> elementSerializer = ((ListSerializer<SEV>) stateSerializer).getElementSerializer();
		return new RocksDBListStateSnapshotTransformFactory<>(snapshotTransformFactory, elementSerializer);
	} else if (stateDesc instanceof MapStateDescriptor) {
		return new RocksDBMapStateSnapshotTransformFactory<>(snapshotTransformFactory);
	} else {
		return new RocksDBValueStateSnapshotTransformFactory<>(snapshotTransformFactory);
	}
}
Example #24
Source File: RocksDBSnapshotTransformFactoryAdaptor.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
private RocksDBListStateSnapshotTransformFactory(
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory,
	TypeSerializer<SEV> elementSerializer) {

	super(snapshotTransformFactory);
	this.elementSerializer = elementSerializer;
}
Example #25
Source File: HeapKeyedStateBackend.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
private <SV, SEV> StateSnapshotTransformFactory<SV> getStateSnapshotTransformFactory(
	StateDescriptor<?, SV> stateDesc,
	StateSnapshotTransformFactory<SEV> snapshotTransformFactory) {
	if (stateDesc instanceof ListStateDescriptor) {
		return (StateSnapshotTransformFactory<SV>) new StateSnapshotTransformers.ListStateSnapshotTransformFactory<>(snapshotTransformFactory);
	} else if (stateDesc instanceof MapStateDescriptor) {
		return (StateSnapshotTransformFactory<SV>) new StateSnapshotTransformers.MapStateSnapshotTransformFactory<>(snapshotTransformFactory);
	} else {
		return (StateSnapshotTransformFactory<SV>) snapshotTransformFactory;
	}
}
Example #26
Source File: TtlStateFactory.java    From flink with Apache License 2.0 5 votes vote down vote up 
private StateSnapshotTransformFactory<?> getSnapshotTransformFactory() {
	if (!ttlConfig.getCleanupStrategies().inFullSnapshot()) {
		return StateSnapshotTransformFactory.noTransform();
	} else {
		return new TtlStateSnapshotTransformer.Factory<>(timeProvider, ttl);
	}
}
Example #27
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
public RegisteredKeyValueStateBackendMetaInfo(
	@Nonnull StateDescriptor.Type stateType,
	@Nonnull String name,
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull TypeSerializer<S> stateSerializer) {

	this(
		stateType,
		name,
		StateSerializerProvider.fromNewRegisteredSerializer(namespaceSerializer),
		StateSerializerProvider.fromNewRegisteredSerializer(stateSerializer),
		StateSnapshotTransformFactory.noTransform());
}
Example #28
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
public RegisteredKeyValueStateBackendMetaInfo(
	@Nonnull StateDescriptor.Type stateType,
	@Nonnull String name,
	@Nonnull TypeSerializer<N> namespaceSerializer,
	@Nonnull TypeSerializer<S> stateSerializer,
	@Nonnull StateSnapshotTransformFactory<S> stateSnapshotTransformFactory) {

	this(
		stateType,
		name,
		StateSerializerProvider.fromNewRegisteredSerializer(namespaceSerializer),
		StateSerializerProvider.fromNewRegisteredSerializer(stateSerializer),
		stateSnapshotTransformFactory);
}
Example #29
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
public RegisteredKeyValueStateBackendMetaInfo(@Nonnull StateMetaInfoSnapshot snapshot) {
	this(
		StateDescriptor.Type.valueOf(snapshot.getOption(StateMetaInfoSnapshot.CommonOptionsKeys.KEYED_STATE_TYPE)),
		snapshot.getName(),
		StateSerializerProvider.fromPreviousSerializerSnapshot(
			(TypeSerializerSnapshot<N>) Preconditions.checkNotNull(
				snapshot.getTypeSerializerSnapshot(StateMetaInfoSnapshot.CommonSerializerKeys.NAMESPACE_SERIALIZER))),
		StateSerializerProvider.fromPreviousSerializerSnapshot(
			(TypeSerializerSnapshot<S>) Preconditions.checkNotNull(
				snapshot.getTypeSerializerSnapshot(StateMetaInfoSnapshot.CommonSerializerKeys.VALUE_SERIALIZER))),
		StateSnapshotTransformFactory.noTransform());

	Preconditions.checkState(StateMetaInfoSnapshot.BackendStateType.KEY_VALUE == snapshot.getBackendStateType());
}
Example #30
Source File: RegisteredKeyValueStateBackendMetaInfo.java    From flink with Apache License 2.0 5 votes vote down vote up 
private RegisteredKeyValueStateBackendMetaInfo(
	@Nonnull StateDescriptor.Type stateType,
	@Nonnull String name,
	@Nonnull StateSerializerProvider<N> namespaceSerializerProvider,
	@Nonnull StateSerializerProvider<S> stateSerializerProvider,
	@Nonnull StateSnapshotTransformFactory<S> stateSnapshotTransformFactory) {

	super(name);
	this.stateType = stateType;
	this.namespaceSerializerProvider = namespaceSerializerProvider;
	this.stateSerializerProvider = stateSerializerProvider;
	this.stateSnapshotTransformFactory = stateSnapshotTransformFactory;
}