Java tutorial
/** * 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.metron.writer.hdfs; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import org.apache.log4j.Logger; import org.apache.storm.hdfs.common.rotation.RotationAction; import java.io.IOException; public class SourceAwareMoveAction implements RotationAction { private static final Logger LOG = Logger.getLogger(SourceHandler.class); private String destination; public SourceAwareMoveAction toDestination(String destDir) { destination = destDir; return this; } private static String getSource(Path filePath) { return filePath.getParent().getName(); } @Override public void execute(FileSystem fileSystem, Path filePath) throws IOException { Path destPath = new Path(new Path(destination, getSource(filePath)), filePath.getName()); LOG.info("Moving file " + filePath + " to " + destPath); boolean success = fileSystem.rename(filePath, destPath); return; } }