| /* |
| * |
| * 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.airavata.workflow.core; |
| |
| import org.apache.airavata.common.exception.ApplicationSettingsException; |
| import org.apache.airavata.common.utils.ServerSettings; |
| import org.apache.airavata.workflow.core.parser.JsonWorkflowParser; |
| import org.apache.airavata.workflow.core.parser.WorkflowParser; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.lang.reflect.Constructor; |
| |
| /** |
| * All classes implement this WorkflowFactory interface, should be abstract or singleton. |
| */ |
| public class WorkflowFactory { |
| |
| private static final Logger log = LoggerFactory.getLogger(WorkflowFactory.class); |
| |
| public static WorkflowParser getWorkflowParser(String workflowString) throws Exception { |
| WorkflowParser workflowParser = null; |
| try { |
| String wfParserClassName = ServerSettings.getWorkflowParser(); |
| Class<?> aClass = Class.forName(wfParserClassName); |
| Constructor<?> constructor = aClass.getConstructor(String.class); |
| workflowParser = (WorkflowParser) constructor.newInstance(workflowString); |
| } catch (ApplicationSettingsException e) { |
| log.info("A custom workflow parser is not defined, Use default Airavata JSON workflow parser"); |
| } |
| if (workflowParser == null) { |
| workflowParser = new JsonWorkflowParser(workflowString); |
| } |
| return workflowParser; |
| } |
| |
| } |