| /** |
| * 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 backtype.storm; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.commons.cli.ParseException; |
| |
| import backtype.storm.utils.Utils; |
| |
| /** |
| * A utility to help run {@link Tool}s |
| * |
| * <p> |
| * <code>ToolRunner</code> can be used to run classes extending the <code>Tool</code> abstract class. It works in conjunction with {@link GenericOptionsParser} to parse the <a |
| * href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a |
| * href="{@docRoot} |
| * to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} |
| * to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a |
| * href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} to parse the <a href="{@docRoot} |
| * /backtype/storm/GenericOptionsParser.html#GenericOptions"> generic storm command line arguments</a> and modifies the <code>Config</code> of the |
| * <code>Tool</code>. The application-specific options are passed along without being modified. |
| * |
| * @see Tool |
| * @see GenericOptionsParser |
| */ |
| |
| public class ToolRunner { |
| static final Logger LOG = LoggerFactory.getLogger(ToolRunner.class); |
| |
| public static void run(Tool tool, String[] args) { |
| run(tool.getConf(), tool, args); |
| } |
| |
| public static void run(Config conf, Tool tool, String[] args) { |
| try { |
| if (conf == null) { |
| conf = new Config(); |
| conf.putAll(Utils.readStormConfig()); |
| } |
| |
| GenericOptionsParser parser = new GenericOptionsParser(conf, args); |
| LOG.info(conf.toString()); |
| tool.setConf(conf); |
| |
| System.exit(tool.run(parser.getRemainingArgs())); |
| } catch (ParseException e) { |
| LOG.error("Error parsing generic options: {}", e.getMessage()); |
| GenericOptionsParser.printGenericCommandUsage(System.err); |
| System.exit(2); |
| } catch (Exception e) { |
| LOG.error("Error running tool", e); |
| System.exit(1); |
| } |
| } |
| } |