| /* |
| * 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.sqoop.tools; |
| |
| import org.apache.sqoop.common.VersionInfo; |
| import org.apache.sqoop.core.ConfigurationConstants; |
| import org.apache.sqoop.tools.tool.BuiltinTools; |
| import org.apache.sqoop.utils.ClassUtils; |
| |
| import java.util.Arrays; |
| |
| /** |
| * Runner allowing the tool to be executed from command line. |
| * |
| * It's expected that all usual dependencies are already on the classpath. |
| */ |
| public final class ToolRunner { |
| |
| /** |
| * Run tool given as first argument and pass all other arguments to it as |
| * tool parameters. |
| * |
| * @param args Tool name and it's arguments |
| * @throws Exception |
| */ |
| public static void main(String[] args) throws Exception { |
| System.out.println("Sqoop tool executor:"); |
| System.out.println("\tVersion: " + VersionInfo.getBuildVersion()); |
| System.out.println("\tRevision: " + VersionInfo.getSourceRevision()); |
| System.out.println("\tCompiled on " + VersionInfo.getBuildDate() + " by " + VersionInfo.getUser()); |
| |
| if(args.length < 1) { |
| throw new IllegalArgumentException("Name of the tool is missing."); |
| } |
| |
| Class<? extends Tool> toolClass; |
| |
| // Firstly let's try to resolve short name |
| toolClass = BuiltinTools.getTool(args[0]); |
| |
| // If the short name wasn't resolved, find the class by it's name |
| if(toolClass == null) { |
| toolClass = (Class<? extends Tool>) ClassUtils.loadClass(args[0]); |
| } |
| |
| if(toolClass == null) { |
| throw new IllegalArgumentException("Can't find tool: " + args[0]); |
| } |
| |
| Tool tool = (Tool) ClassUtils.instantiate(toolClass); |
| if(tool == null) { |
| throw new RuntimeException("Can't get tool instance: " + args[0]); |
| } |
| |
| // We do want us to kill the Tomcat when running from tooling |
| System.setProperty(ConfigurationConstants.KILL_TOMCAT_ON_FAILURE, "false"); |
| |
| System.out.println("Running tool: " + toolClass); |
| if(tool.runTool(Arrays.copyOfRange(args, 1, args.length))) { |
| System.out.println("Tool " + toolClass + " has finished correctly."); |
| } else { |
| System.out.println("Tool " + toolClass + " has failed."); |
| System.exit(1); |
| } |
| } |
| |
| private ToolRunner() { |
| // Instantiation is prohibited |
| } |
| } |