| /** |
| * 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 com.datatorrent.apps.copy; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| import com.datatorrent.api.DAG; |
| import com.datatorrent.api.DAG.Locality; |
| import com.datatorrent.api.StreamingApplication; |
| import com.datatorrent.api.annotation.ApplicationAnnotation; |
| import com.datatorrent.lib.io.fs.FSInputModule; |
| import com.datatorrent.lib.io.fs.HDFSFileCopyModule; |
| |
| /** |
| * Application for HDFS to HDFS file copy |
| * |
| * @since 3.4.0 |
| */ |
| @ApplicationAnnotation(name = "HDFSFileCopyApp") |
| public class HDFSFileCopyApp implements StreamingApplication |
| { |
| @Override |
| public void populateDAG(DAG dag, Configuration conf) |
| { |
| |
| FSInputModule inputModule = dag.addModule("HDFSInputModule", new FSInputModule()); |
| HDFSFileCopyModule outputModule = dag.addModule("HDFSFileCopyModule", new HDFSFileCopyModule()); |
| |
| dag.addStream("FileMetaData", inputModule.filesMetadataOutput, outputModule.filesMetadataInput); |
| dag.addStream("BlocksMetaData", inputModule.blocksMetadataOutput, outputModule.blocksMetadataInput) |
| .setLocality(Locality.THREAD_LOCAL); |
| dag.addStream("BlocksData", inputModule.messages, outputModule.blockData).setLocality(Locality.THREAD_LOCAL); |
| } |
| |
| } |