| /** |
| * 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.hbase.util; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseConfiguration; |
| import org.apache.hadoop.hbase.HBaseInterfaceAudience; |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil; |
| import org.apache.hadoop.util.Tool; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.apache.log4j.Level; |
| import org.apache.log4j.Logger; |
| |
| /** |
| * Generate a classpath string containing any jars required by mapreduce jobs. Specify |
| * additional values by providing a comma-separated list of paths via -Dtmpjars. |
| */ |
| @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS) |
| public class MapreduceDependencyClasspathTool implements Tool { |
| |
| private Configuration conf; |
| |
| @Override |
| public void setConf(Configuration conf) { |
| this.conf = conf; |
| } |
| |
| @Override |
| public Configuration getConf() { |
| return conf; |
| } |
| |
| @Override |
| public int run(String[] args) throws Exception { |
| if (args.length > 0) { |
| System.err.println("Usage: hbase mapredcp [-Dtmpjars=...]"); |
| System.err.println(" Construct a CLASSPATH containing dependency jars required to run a mapreduce"); |
| System.err.println(" job. By default, includes any jars detected by TableMapReduceUtils. Provide"); |
| System.err.println(" additional entries by specifying a comma-separated list in tmpjars."); |
| return 0; |
| } |
| |
| TableMapReduceUtil.addHBaseDependencyJars(getConf()); |
| System.out.println(TableMapReduceUtil.buildDependencyClasspath(getConf())); |
| return 0; |
| } |
| |
| public static void main(String[] argv) throws Exception { |
| // Silence the usual noise. This is probably fragile... |
| Logger logger = Logger.getLogger("org.apache.hadoop.hbase"); |
| if (logger != null) { |
| logger.setLevel(Level.WARN); |
| } |
| System.exit(ToolRunner.run( |
| HBaseConfiguration.create(), new MapreduceDependencyClasspathTool(), argv)); |
| } |
| } |