| /* |
| * 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.jobgraph; |
| |
| import org.apache.flink.api.common.io.FinalizeOnMaster; |
| import org.apache.flink.api.common.io.InitializeOnMaster; |
| import org.apache.flink.api.common.io.InputFormat; |
| import org.apache.flink.api.common.io.OutputFormat; |
| import org.apache.flink.api.common.operators.util.UserCodeWrapper; |
| import org.apache.flink.runtime.OperatorIDPair; |
| import org.apache.flink.runtime.operators.util.TaskConfig; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import static org.apache.flink.util.Preconditions.checkNotNull; |
| |
| /** |
| * A task vertex that runs an initialization and a finalization on the master. If necessary, it |
| * tries to deserialize input and output formats, and initialize and finalize them on master. |
| */ |
| public class InputOutputFormatVertex extends JobVertex { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private final Map<OperatorID, String> formatDescriptions = new HashMap<>(); |
| |
| public InputOutputFormatVertex(String name) { |
| super(name); |
| } |
| |
| public InputOutputFormatVertex( |
| String name, JobVertexID id, List<OperatorIDPair> operatorIDPairs) { |
| |
| super(name, id, operatorIDPairs); |
| } |
| |
| @Override |
| public void initializeOnMaster(ClassLoader loader) throws Exception { |
| final InputOutputFormatContainer formatContainer = initInputOutputformatContainer(loader); |
| |
| final ClassLoader original = Thread.currentThread().getContextClassLoader(); |
| try { |
| // set user classloader before calling user code |
| Thread.currentThread().setContextClassLoader(loader); |
| |
| // configure the input format and setup input splits |
| Map<OperatorID, UserCodeWrapper<? extends InputFormat<?, ?>>> inputFormats = |
| formatContainer.getInputFormats(); |
| if (inputFormats.size() > 1) { |
| throw new UnsupportedOperationException( |
| "Multiple input formats are not supported in a job vertex."); |
| } |
| for (Map.Entry<OperatorID, UserCodeWrapper<? extends InputFormat<?, ?>>> entry : |
| inputFormats.entrySet()) { |
| final InputFormat<?, ?> inputFormat; |
| |
| try { |
| inputFormat = entry.getValue().getUserCodeObject(); |
| inputFormat.configure(formatContainer.getParameters(entry.getKey())); |
| } catch (Throwable t) { |
| throw new Exception( |
| "Configuring the input format (" |
| + getFormatDescription(entry.getKey()) |
| + ") failed: " |
| + t.getMessage(), |
| t); |
| } |
| |
| setInputSplitSource(inputFormat); |
| } |
| |
| // configure output formats and invoke initializeGlobal() |
| Map<OperatorID, UserCodeWrapper<? extends OutputFormat<?>>> outputFormats = |
| formatContainer.getOutputFormats(); |
| for (Map.Entry<OperatorID, UserCodeWrapper<? extends OutputFormat<?>>> entry : |
| outputFormats.entrySet()) { |
| final OutputFormat<?> outputFormat; |
| |
| try { |
| outputFormat = entry.getValue().getUserCodeObject(); |
| outputFormat.configure(formatContainer.getParameters(entry.getKey())); |
| } catch (Throwable t) { |
| throw new Exception( |
| "Configuring the output format (" |
| + getFormatDescription(entry.getKey()) |
| + ") failed: " |
| + t.getMessage(), |
| t); |
| } |
| |
| if (outputFormat instanceof InitializeOnMaster) { |
| ((InitializeOnMaster) outputFormat).initializeGlobal(getParallelism()); |
| } |
| } |
| } finally { |
| // restore original classloader |
| Thread.currentThread().setContextClassLoader(original); |
| } |
| } |
| |
| @Override |
| public void finalizeOnMaster(ClassLoader loader) throws Exception { |
| final InputOutputFormatContainer formatContainer = initInputOutputformatContainer(loader); |
| |
| final ClassLoader original = Thread.currentThread().getContextClassLoader(); |
| try { |
| // set user classloader before calling user code |
| Thread.currentThread().setContextClassLoader(loader); |
| |
| // configure output formats and invoke finalizeGlobal() |
| Map<OperatorID, UserCodeWrapper<? extends OutputFormat<?>>> outputFormats = |
| formatContainer.getOutputFormats(); |
| for (Map.Entry<OperatorID, UserCodeWrapper<? extends OutputFormat<?>>> entry : |
| outputFormats.entrySet()) { |
| final OutputFormat<?> outputFormat; |
| |
| try { |
| outputFormat = entry.getValue().getUserCodeObject(); |
| outputFormat.configure(formatContainer.getParameters(entry.getKey())); |
| } catch (Throwable t) { |
| throw new Exception( |
| "Configuring the output format (" |
| + getFormatDescription(entry.getKey()) |
| + ") failed: " |
| + t.getMessage(), |
| t); |
| } |
| |
| if (outputFormat instanceof FinalizeOnMaster) { |
| ((FinalizeOnMaster) outputFormat).finalizeGlobal(getParallelism()); |
| } |
| } |
| } finally { |
| // restore original classloader |
| Thread.currentThread().setContextClassLoader(original); |
| } |
| } |
| |
| public String getFormatDescription(OperatorID operatorID) { |
| return formatDescriptions.get(operatorID); |
| } |
| |
| public void setFormatDescription(OperatorID operatorID, String formatDescription) { |
| formatDescriptions.put(checkNotNull(operatorID), formatDescription); |
| } |
| |
| private InputOutputFormatContainer initInputOutputformatContainer(ClassLoader classLoader) |
| throws Exception { |
| try { |
| return new InputOutputFormatContainer(new TaskConfig(getConfiguration()), classLoader); |
| } catch (Throwable t) { |
| throw new Exception( |
| "Loading the input/output formats failed: " |
| + String.join(",", formatDescriptions.values()), |
| t); |
| } |
| } |
| } |