[flink] Implement FLIP-314 LineageVertexProvider for source and sink connectors #7311
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * 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.paimon.flink.lineage; | ||
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| import org.apache.paimon.table.Table; | ||
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| import org.apache.flink.table.connector.sink.DynamicTableSink.SinkRuntimeProvider; | ||
| import org.apache.flink.table.connector.source.ScanTableSource.ScanRuntimeProvider; | ||
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| /** Stub factory for Flink 1.x. Returns providers unchanged since lineage is not supported. */ | ||
| public class DataStreamProviderFactory { | ||
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| /** Returns the provider unchanged. Flink 1.x does not support lineage. */ | ||
| public static ScanRuntimeProvider getScanProvider( | ||
| ScanRuntimeProvider provider, String name, Table table) { | ||
| return provider; | ||
| } | ||
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| /** Returns the provider unchanged. Flink 1.x does not support lineage. */ | ||
| public static SinkRuntimeProvider getSinkProvider( | ||
| SinkRuntimeProvider provider, String name, Table table) { | ||
| return provider; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| * 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.paimon.flink.lineage; | ||
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| import org.apache.paimon.table.Table; | ||
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| import org.apache.flink.streaming.api.datastream.DataStream; | ||
| import org.apache.flink.streaming.api.datastream.DataStreamSink; | ||
| import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; | ||
| import org.apache.flink.streaming.api.lineage.LineageVertex; | ||
| import org.apache.flink.streaming.api.lineage.LineageVertexProvider; | ||
| import org.apache.flink.table.connector.ProviderContext; | ||
| import org.apache.flink.table.connector.sink.DataStreamSinkProvider; | ||
| import org.apache.flink.table.connector.sink.DynamicTableSink.SinkRuntimeProvider; | ||
| import org.apache.flink.table.connector.source.DataStreamScanProvider; | ||
| import org.apache.flink.table.connector.source.ScanTableSource.ScanRuntimeProvider; | ||
| import org.apache.flink.table.data.RowData; | ||
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| /** | ||
| * Factory that wraps {@link DataStreamScanProvider} and {@link DataStreamSinkProvider} with {@link | ||
| * LineageVertexProvider} support for Flink 2.0+. | ||
| */ | ||
| public class DataStreamProviderFactory { | ||
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| /** | ||
| * Returns a {@link ScanRuntimeProvider} that also implements {@link LineageVertexProvider} so | ||
| * Flink's lineage graph discovers the Paimon source table. | ||
| */ | ||
| public static ScanRuntimeProvider getScanProvider( | ||
| ScanRuntimeProvider provider, String name, Table table) { | ||
| return new LineageAwarePaimonDataStreamScanProvider( | ||
| (DataStreamScanProvider) provider, name, table); | ||
| } | ||
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| /** | ||
| * Returns a {@link SinkRuntimeProvider} that also implements {@link LineageVertexProvider} so | ||
| * Flink's lineage graph discovers the Paimon sink table. | ||
| */ | ||
| public static SinkRuntimeProvider getSinkProvider( | ||
| SinkRuntimeProvider provider, String name, Table table) { | ||
| return new LineageAwarePaimonDataStreamSinkProvider( | ||
| (DataStreamSinkProvider) provider, name, table); | ||
| } | ||
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| private static class LineageAwarePaimonDataStreamScanProvider | ||
| implements DataStreamScanProvider, LineageVertexProvider { | ||
|
Contributor
There was a problem hiding this comment. Compared with delegate pattern, would it be better to directly have Same for
Contributor
Author
There was a problem hiding this comment. Thanks for the review @yunfengzhou-hub. The reason for the delegate pattern is backward compatibility. By using the delegate pattern with a version-specific |
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| private final DataStreamScanProvider delegate; | ||
| private final String name; | ||
| private final Table table; | ||
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| LineageAwarePaimonDataStreamScanProvider( | ||
| DataStreamScanProvider delegate, String name, Table table) { | ||
| this.delegate = delegate; | ||
| this.name = name; | ||
| this.table = table; | ||
| } | ||
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| @Override | ||
| public DataStream<RowData> produceDataStream( | ||
| ProviderContext context, StreamExecutionEnvironment env) { | ||
| return delegate.produceDataStream(context, env); | ||
| } | ||
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| @Override | ||
| public boolean isBounded() { | ||
| return delegate.isBounded(); | ||
| } | ||
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| @Override | ||
| public LineageVertex getLineageVertex() { | ||
| return LineageUtils.sourceLineageVertex(name, delegate.isBounded(), table); | ||
| } | ||
| } | ||
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| private static class LineageAwarePaimonDataStreamSinkProvider | ||
| implements DataStreamSinkProvider, LineageVertexProvider { | ||
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| private final DataStreamSinkProvider delegate; | ||
| private final String name; | ||
| private final Table table; | ||
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| LineageAwarePaimonDataStreamSinkProvider( | ||
| DataStreamSinkProvider delegate, String name, Table table) { | ||
| this.delegate = delegate; | ||
| this.name = name; | ||
| this.table = table; | ||
| } | ||
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| @Override | ||
| public DataStreamSink<?> consumeDataStream( | ||
| ProviderContext providerContext, DataStream<RowData> dataStream) { | ||
| return delegate.consumeDataStream(providerContext, dataStream); | ||
| } | ||
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| @Override | ||
| public LineageVertex getLineageVertex() { | ||
| return LineageUtils.sinkLineageVertex(name, table); | ||
| } | ||
| } | ||
| } | ||
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This is required because since now we have to import
DataStreamScanProviderin flink 2-common. Code ref: https://github.com/apache/flink/blob/c0479c74f2b736aaed00b4d9fb1b14ad296e562d/flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/table/connector/source/DataStreamScanProvider.java#L40