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[FLINK-34668][checkpoint] Report operator state handle of file mergin…
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90 changes: 90 additions & 0 deletions
90
.../src/main/java/org/apache/flink/runtime/state/filemerging/DirectoryStreamStateHandle.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.runtime.state.filemerging; | ||
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| import org.apache.flink.core.fs.FSDataInputStream; | ||
| import org.apache.flink.runtime.state.DirectoryStateHandle; | ||
| import org.apache.flink.runtime.state.PhysicalStateHandleID; | ||
| import org.apache.flink.runtime.state.SharedStateRegistryKey; | ||
| import org.apache.flink.runtime.state.StreamStateHandle; | ||
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| import javax.annotation.Nonnull; | ||
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| import java.nio.file.Path; | ||
| import java.util.Optional; | ||
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| /** Wrap {@link DirectoryStateHandle} to a {@link StreamStateHandle}. */ | ||
| public class DirectoryStreamStateHandle extends DirectoryStateHandle implements StreamStateHandle { | ||
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| private static final long serialVersionUID = 1L; | ||
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| public DirectoryStreamStateHandle(@Nonnull Path directory, long directorySize) { | ||
| super(directory, directorySize); | ||
| } | ||
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| @Override | ||
| public FSDataInputStream openInputStream() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public Optional<byte[]> asBytesIfInMemory() { | ||
| return Optional.empty(); | ||
| } | ||
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| @Override | ||
| public PhysicalStateHandleID getStreamStateHandleID() { | ||
| return new PhysicalStateHandleID(getDirectory().toString()); | ||
| } | ||
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| public SharedStateRegistryKey createStateRegistryKey() { | ||
| return new SharedStateRegistryKey(getDirectory().toUri().toString()); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (o == null || getClass() != o.getClass()) { | ||
| return false; | ||
| } | ||
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| DirectoryStreamStateHandle that = (DirectoryStreamStateHandle) o; | ||
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| return getDirectory().equals(that.getDirectory()); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "DirectoryStreamStateHandle{" + "directory=" + getDirectory() + '}'; | ||
| } | ||
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| /** | ||
| * Return a {@link DirectoryStreamStateHandle} with zero size, which usually used to be | ||
| * registered to {@link org.apache.flink.runtime.state.SharedStateRegistry} to track the life | ||
| * cycle of the directory, therefore a fake size is provided. | ||
| * | ||
| * @param directory the directory. | ||
| * @return DirectoryStreamStateHandle with zero size. | ||
| */ | ||
| public static DirectoryStreamStateHandle forPathWithZeroSize(@Nonnull Path directory) { | ||
| return new DirectoryStreamStateHandle(directory, 0); | ||
| } | ||
| } |
64 changes: 64 additions & 0 deletions
64
...org/apache/flink/runtime/state/filemerging/EmptyFileMergingOperatorStreamStateHandle.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| /* | ||
| * 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.filemerging; | ||
|
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| import org.apache.flink.runtime.state.OperatorStateHandle; | ||
| import org.apache.flink.runtime.state.StreamStateHandle; | ||
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| import java.util.Collections; | ||
| import java.util.Map; | ||
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| /** | ||
| * An empty {@link FileMergingOperatorStreamStateHandle} that is only used as a placeholder to | ||
| * prevent file merging directory from being deleted. | ||
| */ | ||
| public class EmptyFileMergingOperatorStreamStateHandle | ||
| extends FileMergingOperatorStreamStateHandle { | ||
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| private static final long serialVersionUID = 1L; | ||
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| public EmptyFileMergingOperatorStreamStateHandle( | ||
| DirectoryStreamStateHandle taskOwnedDirHandle, | ||
| DirectoryStreamStateHandle sharedDirHandle, | ||
| Map<String, StateMetaInfo> stateNameToPartitionOffsets, | ||
| StreamStateHandle delegateStateHandle) { | ||
| super( | ||
| taskOwnedDirHandle, | ||
| sharedDirHandle, | ||
| stateNameToPartitionOffsets, | ||
| delegateStateHandle); | ||
| } | ||
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| /** | ||
| * Create an empty {@link EmptyFileMergingOperatorStreamStateHandle}. | ||
| * | ||
| * @param taskownedDirHandle the directory where operator state is stored. | ||
| * @param sharedDirHandle the directory where shared state is stored. | ||
| */ | ||
| public static EmptyFileMergingOperatorStreamStateHandle create( | ||
| DirectoryStreamStateHandle taskownedDirHandle, | ||
| DirectoryStreamStateHandle sharedDirHandle) { | ||
| final Map<String, OperatorStateHandle.StateMetaInfo> writtenStatesMetaData = | ||
| Collections.emptyMap(); | ||
| return new EmptyFileMergingOperatorStreamStateHandle( | ||
| taskownedDirHandle, | ||
| sharedDirHandle, | ||
| writtenStatesMetaData, | ||
| EmptySegmentFileStateHandle.INSTANCE); | ||
| } | ||
| } |
46 changes: 46 additions & 0 deletions
46
...src/main/java/org/apache/flink/runtime/state/filemerging/EmptySegmentFileStateHandle.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.flink.runtime.state.filemerging; | ||
|
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| import org.apache.flink.core.fs.FSDataInputStream; | ||
| import org.apache.flink.core.fs.Path; | ||
| import org.apache.flink.runtime.state.CheckpointedStateScope; | ||
|
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| import java.io.IOException; | ||
| import java.io.UnsupportedEncodingException; | ||
|
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| /** An empty {@link SegmentFileStateHandle} that is only used as a placeholder. */ | ||
| public class EmptySegmentFileStateHandle extends SegmentFileStateHandle { | ||
| private static final long serialVersionUID = 1L; | ||
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| public static final EmptySegmentFileStateHandle INSTANCE = | ||
| new EmptySegmentFileStateHandle( | ||
| new Path("empty"), 0, 0, CheckpointedStateScope.EXCLUSIVE); | ||
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| private EmptySegmentFileStateHandle( | ||
| Path filePath, long startPos, long stateSize, CheckpointedStateScope scope) { | ||
| super(filePath, startPos, stateSize, scope); | ||
| } | ||
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| @Override | ||
| public FSDataInputStream openInputStream() throws IOException { | ||
| throw new UnsupportedEncodingException( | ||
| "Cannot open input stream from an EmptySegmentFileStateHandle."); | ||
| } | ||
| } |
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