001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 * 
010 *      http://www.apache.org/licenses/LICENSE-2.0
011 * 
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.oozie.service;
019
020import org.apache.hadoop.conf.Configuration;
021import org.apache.oozie.client.OozieClient;
022import org.apache.oozie.workflow.WorkflowApp;
023import org.apache.oozie.workflow.WorkflowException;
024import org.apache.oozie.workflow.WorkflowLib;
025import org.apache.oozie.util.ParamChecker;
026
027/**
028 * Service that provides workflow application definition reading, parsing and creating proto configuration.
029 */
030public class LiteWorkflowAppService extends WorkflowAppService {
031    /**
032     * Parse workflow definition.
033     *
034     * @param jobConf workflow job configuration.
035     * @param authToken authorization token.
036     * @return workflow application.
037     */
038    public WorkflowApp parseDef(Configuration jobConf) throws WorkflowException {
039        String appPath = ParamChecker.notEmpty(jobConf.get(OozieClient.APP_PATH), OozieClient.APP_PATH);
040        String user = ParamChecker.notEmpty(jobConf.get(OozieClient.USER_NAME), OozieClient.USER_NAME);
041        String workflowXml = readDefinition(appPath, user, jobConf);
042        return parseDef(workflowXml, jobConf);
043    }
044
045    public WorkflowApp parseDef(String workflowXml, Configuration jobConf) throws WorkflowException {
046        WorkflowLib workflowLib = Services.get().get(WorkflowStoreService.class).getWorkflowLibWithNoDB();
047        return workflowLib.parseDef(workflowXml, jobConf);
048    }
049}