| /** |
| * 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.oozie.action.hadoop; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.oozie.action.ActionExecutorException; |
| import org.apache.oozie.util.XLog; |
| import org.jdom.Element; |
| import org.jdom.Namespace; |
| |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.List; |
| |
| public abstract class ScriptLanguageActionExecutor extends JavaActionExecutor { |
| |
| public ScriptLanguageActionExecutor(String type) { |
| super(type); |
| } |
| |
| @Override |
| public List<Class<?>> getLauncherClasses() { |
| return null; |
| } |
| |
| protected boolean shouldAddScriptToCache(){ |
| return true; |
| } |
| |
| @Override |
| protected Configuration setupLauncherConf(Configuration conf, Element actionXml, Path appPath, Context context) |
| throws ActionExecutorException { |
| super.setupLauncherConf(conf, actionXml, appPath, context); |
| if(shouldAddScriptToCache()) { |
| addScriptToCache(conf, actionXml, appPath, context); |
| } |
| return conf; |
| |
| } |
| |
| protected void addScriptToCache(Configuration conf, Element actionXml, Path appPath, Context context) |
| throws ActionExecutorException { |
| Namespace ns = actionXml.getNamespace(); |
| String script = actionXml.getChild("script", ns).getTextTrim(); |
| String name = new Path(script).getName(); |
| String scriptContent = context.getProtoActionConf().get(this.getScriptName()); |
| |
| Path scriptFile = null; |
| if (scriptContent != null) { // Create script on filesystem if this is |
| // an http submission job; |
| FSDataOutputStream dos = null; |
| try { |
| Path actionPath = context.getActionDir(); |
| scriptFile = new Path(actionPath, script); |
| FileSystem fs = context.getAppFileSystem(); |
| dos = fs.create(scriptFile); |
| dos.write(scriptContent.getBytes(StandardCharsets.UTF_8)); |
| |
| addToCache(conf, actionPath, script + "#" + name, false); |
| } |
| catch (Exception ex) { |
| throw new ActionExecutorException(ActionExecutorException.ErrorType.ERROR, "FAILED_OPERATION", XLog |
| .format("Not able to write script file {0} on hdfs", scriptFile), ex); |
| } |
| finally { |
| try { |
| if (dos != null) { |
| dos.close(); |
| } |
| } |
| catch (IOException ex) { |
| XLog.getLog(getClass()).error("Error: " + ex.getMessage()); |
| } |
| } |
| } |
| else { |
| addToCache(conf, appPath, script + "#" + name, false); |
| } |
| } |
| |
| protected abstract String getScriptName(); |
| } |