001 /** 002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved. 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. See accompanying LICENSE file. 014 */ 015 package org.apache.oozie.service; 016 017 import org.apache.hadoop.conf.Configuration; 018 import org.apache.oozie.client.OozieClient; 019 import org.apache.oozie.workflow.WorkflowApp; 020 import org.apache.oozie.workflow.WorkflowException; 021 import org.apache.oozie.workflow.WorkflowLib; 022 import org.apache.oozie.service.Services; 023 import org.apache.oozie.util.ParamChecker; 024 025 /** 026 * Service that provides workflow application definition reading, parsing and creating proto configuration. 027 */ 028 public class LiteWorkflowAppService extends WorkflowAppService { 029 /** 030 * Parse workflow definition. 031 * 032 * @param jobConf workflow job configuration. 033 * @param authToken authorization token. 034 * @return workflow application. 035 */ 036 public WorkflowApp parseDef(Configuration jobConf, String authToken) throws WorkflowException { 037 String appPath = ParamChecker.notEmpty(jobConf.get(OozieClient.APP_PATH), OozieClient.APP_PATH); 038 String user = ParamChecker.notEmpty(jobConf.get(OozieClient.USER_NAME), OozieClient.USER_NAME); 039 String group = ParamChecker.notEmpty(jobConf.get(OozieClient.GROUP_NAME), OozieClient.GROUP_NAME); 040 String workflowXml = readDefinition(appPath, user, group, authToken, jobConf); 041 return parseDef(workflowXml); 042 } 043 044 public WorkflowApp parseDef(String workflowXml) throws WorkflowException { 045 WorkflowLib workflowLib = Services.get().get(WorkflowStoreService.class).getWorkflowLibWithNoDB(); 046 return workflowLib.parseDef(workflowXml); 047 } 048 }