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.workflow.lite; 019 020 021import org.apache.oozie.workflow.WorkflowApp; 022import org.apache.oozie.workflow.WorkflowException; 023import org.apache.oozie.workflow.WorkflowInstance; 024import org.apache.oozie.workflow.WorkflowLib; 025import org.apache.oozie.service.Services; 026import org.apache.oozie.service.UUIDService; 027import org.apache.oozie.service.UUIDService.ApplicationType; 028import org.apache.oozie.util.ParamChecker; 029import org.apache.hadoop.conf.Configuration; 030 031import javax.xml.validation.Schema; 032import java.io.StringReader; 033import java.util.Date; 034import java.util.Map; 035 036//TODO javadoc 037public abstract class LiteWorkflowLib implements WorkflowLib { 038 private Schema schema; 039 private Class<? extends ControlNodeHandler> controlHandlerClass; 040 private Class<? extends DecisionNodeHandler> decisionHandlerClass; 041 private Class<? extends ActionNodeHandler> actionHandlerClass; 042 043 public LiteWorkflowLib(Schema schema, 044 Class<? extends ControlNodeHandler> controlNodeHandler, 045 Class<? extends DecisionNodeHandler> decisionHandlerClass, 046 Class<? extends ActionNodeHandler> actionHandlerClass) { 047 this.schema = schema; 048 this.controlHandlerClass = controlNodeHandler; 049 this.decisionHandlerClass = decisionHandlerClass; 050 this.actionHandlerClass = actionHandlerClass; 051 } 052 053 @Override 054 public WorkflowApp parseDef(String appXml, Configuration jobConf, Configuration configDefault) throws WorkflowException { 055 ParamChecker.notEmpty(appXml, "appXml"); 056 return new LiteWorkflowAppParser(schema, controlHandlerClass, decisionHandlerClass, actionHandlerClass) 057 .validateAndParse(new StringReader(appXml), jobConf, configDefault); 058 } 059 060 @Override 061 public WorkflowInstance createInstance(WorkflowApp app, Configuration conf) throws WorkflowException { 062 ParamChecker.notNull(app, "app"); 063 String jobId = Services.get().get(UUIDService.class).generateId(ApplicationType.WORKFLOW); 064 return new LiteWorkflowInstance((LiteWorkflowApp) app, conf, jobId); 065 } 066 067 @Override 068 public WorkflowInstance createInstance(WorkflowApp app, Configuration conf, String wfId, Map<String, Date> actionEndTimes) 069 throws WorkflowException { 070 ParamChecker.notNull(app, "app"); 071 ParamChecker.notNull(wfId, "wfId"); 072 return new LiteWorkflowInstance((LiteWorkflowApp) app, conf, wfId, actionEndTimes); 073 } 074}