wqshr12345 commented on code in PR #25233: URL: https://github.com/apache/flink/pull/25233#discussion_r1735476915
########## flink-runtime/src/main/java/org/apache/flink/runtime/state/v2/adaptor/AsyncKeyedStateBackendAdaptor.java: ########## @@ -0,0 +1,83 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.runtime.state.v2.adaptor; + +import org.apache.flink.api.common.state.ValueState; +import org.apache.flink.api.common.state.v2.State; +import org.apache.flink.api.common.typeutils.TypeSerializer; +import org.apache.flink.runtime.asyncprocessing.StateExecutor; +import org.apache.flink.runtime.asyncprocessing.StateRequestHandler; +import org.apache.flink.runtime.state.AsyncKeyedStateBackend; +import org.apache.flink.runtime.state.KeyedStateBackend; +import org.apache.flink.runtime.state.v2.StateDescriptor; +import org.apache.flink.runtime.state.v2.StateDescriptorUtils; + +import javax.annotation.Nonnull; + +import java.io.IOException; + +/** + * A adaptor that transforms {@link KeyedStateBackend} into {@link AsyncKeyedStateBackend}. + * + * @param <K> The key by which state is keyed. + */ +public class AsyncKeyedStateBackendAdaptor<K> implements AsyncKeyedStateBackend { + private final KeyedStateBackend<K> keyedStateBackend; + + public AsyncKeyedStateBackendAdaptor(KeyedStateBackend<K> keyedStateBackend) { + this.keyedStateBackend = keyedStateBackend; + } + + @Override + public void setup(@Nonnull StateRequestHandler stateRequestHandler) {} + + @Nonnull + @Override + public <N, S extends State, SV> S createState( + @Nonnull N defaultNamespace, + @Nonnull TypeSerializer<N> namespaceSerializer, + @Nonnull StateDescriptor<SV> stateDesc) + throws Exception { + org.apache.flink.api.common.state.StateDescriptor rawStateDesc = + StateDescriptorUtils.transformFromV2ToV1(stateDesc); + org.apache.flink.api.common.state.State rawState = + keyedStateBackend.getOrCreateKeyedState(namespaceSerializer, rawStateDesc); + switch (rawStateDesc.getType()) { + case VALUE: + { Review Comment: The comment has been addressed. ########## flink-runtime/src/main/java/org/apache/flink/runtime/state/v2/adaptor/AsyncKeyedStateBackendAdaptor.java: ########## @@ -0,0 +1,83 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.runtime.state.v2.adaptor; + +import org.apache.flink.api.common.state.ValueState; +import org.apache.flink.api.common.state.v2.State; +import org.apache.flink.api.common.typeutils.TypeSerializer; +import org.apache.flink.runtime.asyncprocessing.StateExecutor; +import org.apache.flink.runtime.asyncprocessing.StateRequestHandler; +import org.apache.flink.runtime.state.AsyncKeyedStateBackend; +import org.apache.flink.runtime.state.KeyedStateBackend; +import org.apache.flink.runtime.state.v2.StateDescriptor; +import org.apache.flink.runtime.state.v2.StateDescriptorUtils; + +import javax.annotation.Nonnull; + +import java.io.IOException; + +/** + * A adaptor that transforms {@link KeyedStateBackend} into {@link AsyncKeyedStateBackend}. + * + * @param <K> The key by which state is keyed. + */ +public class AsyncKeyedStateBackendAdaptor<K> implements AsyncKeyedStateBackend { + private final KeyedStateBackend<K> keyedStateBackend; + + public AsyncKeyedStateBackendAdaptor(KeyedStateBackend<K> keyedStateBackend) { + this.keyedStateBackend = keyedStateBackend; + } + + @Override + public void setup(@Nonnull StateRequestHandler stateRequestHandler) {} + + @Nonnull + @Override + public <N, S extends State, SV> S createState( + @Nonnull N defaultNamespace, + @Nonnull TypeSerializer<N> namespaceSerializer, + @Nonnull StateDescriptor<SV> stateDesc) + throws Exception { + org.apache.flink.api.common.state.StateDescriptor rawStateDesc = + StateDescriptorUtils.transformFromV2ToV1(stateDesc); + org.apache.flink.api.common.state.State rawState = + keyedStateBackend.getOrCreateKeyedState(namespaceSerializer, rawStateDesc); + switch (rawStateDesc.getType()) { + case VALUE: + { + return (S) new ValueStateWrapper((ValueState) rawState); + } + default: + throw new UnsupportedOperationException( + String.format("Unsupported state type: %s", stateDesc.getType())); Review Comment: The comment has been addressed. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
