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