| /** |
| * 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.hadoop.hdfs.tools; |
| |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.DistributedFileSystem; |
| |
| |
| @InterfaceAudience.Private |
| public class HDFSConcat { |
| private final static String def_uri = "hdfs://localhost:9000"; |
| /** |
| * @param args |
| */ |
| public static void main(String... args) throws IOException { |
| |
| if(args.length < 2) { |
| System.err.println("Usage HDFSConcat target srcs.."); |
| System.exit(0); |
| } |
| |
| Configuration conf = new Configuration(); |
| String uri = conf.get("fs.default.name", def_uri); |
| Path path = new Path(uri); |
| DistributedFileSystem dfs = |
| (DistributedFileSystem)FileSystem.get(path.toUri(), conf); |
| |
| Path [] srcs = new Path[args.length-1]; |
| for(int i=1; i<args.length; i++) { |
| srcs[i-1] = new Path(args[i]); |
| } |
| dfs.concat(new Path(args[0]), srcs); |
| } |
| |
| } |