SSWorkflowInterpreterInteractorImpl.java

/**
 *
 * 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.engine.interpretor;

import org.apache.airavata.workflow.model.wf.Workflow;
import org.apache.airavata.workflow.model.wf.WorkflowExecutionState;

public class SSWorkflowInterpreterInteractorImpl implements
		WorkflowInterpreterInteractor {
	
	@Override
	public boolean notify(WorkflowExecutionMessage messageType, WorkflowInterpreterConfiguration config, Object data) {
		switch (messageType) {
		case NODE_STATE_CHANGED:
			break;
		case EXECUTION_STATE_CHANGED:
			WorkflowExecutionState state = (WorkflowExecutionState) data;
			config.getWorkflow().setExecutionState(state);
//			if (state == WorkflowExecutionState.PAUSED
//					|| state == WorkflowExecutionState.STOPPED) {
//				config.getWorkflow().setExecutionState(WorkflowExecutionState.STOPPED);
//			}else if (state == WorkflowExecutionState.RUNNING) {
//				config.getWorkflow().setExecutionState(WorkflowExecutionState.RUNNING);
//			}
			break;
		case EXECUTION_TASK_START:
			break;
		case EXECUTION_TASK_END:
			break;
		case OPEN_SUBWORKFLOW:
			break;
		case HANDLE_DEPENDENT_NODES_DIFFERED_INPUTS:
				break;
		default:
			return false;	
		}
		return true;
	}

	@Override
	public Object retrieveData(WorkflowExecutionMessage messageType, WorkflowInterpreterConfiguration config, Object data)
			throws Exception {
		Object result = null;
		switch (messageType) {
//		case INPUT_WORKFLOWINTERPRETER_FOR_WORKFLOW:
//			Workflow subWorkflow= (Workflow) data;
//            WorkflowInterpreterConfiguration workflowInterpreterConfiguration = new WorkflowInterpreterConfiguration(subWorkflow);
//			result = new WorkflowInterpreter(workflowInterpreterConfiguration
//					, 
//					new SSWorkflowInterpreterInteractorImpl());
//			break;
//		case INPUT_GSS_CREDENTIAL:
//			WorkflowInterpreter w = (WorkflowInterpreter) data;
//			result = SecurityUtil.getGSSCredential(w.getUsername(),
//					w.getPassword(), w.getConfig().getConfiguration().getMyProxyServer());
//			break;
//		case INPUT_LEAD_CONTEXT_HEADER:
//			Node node = (Node) data;
//			result = XBayaUtil.buildLeadContextHeader(config.getWorkflow(), config.getConfiguration(),
//					new MonitorConfiguration(config.getMessageBrokerURL(),
//							config.getTopic(), true,
//							config.getMessageBoxURL()), node.getID(),
//					null);
//			break;
		default:
			break;
		}
		return result;
	}

	@Override
	public void pauseExecution(WorkflowInterpreterConfiguration config) {
		notify(WorkflowExecutionMessage.EXECUTION_STATE_CHANGED,config, WorkflowExecutionState.PAUSED);
	}

	@Override
	public void resumeExecution(WorkflowInterpreterConfiguration config) {
		notify(WorkflowExecutionMessage.EXECUTION_STATE_CHANGED,config, WorkflowExecutionState.RUNNING);
	}

	@Override
	public void terminateExecution(WorkflowInterpreterConfiguration config) {
		notify(WorkflowExecutionMessage.EXECUTION_STATE_CHANGED,config, WorkflowExecutionState.STOPPED);
	}

	@Override
	public boolean isExecutionPaused(WorkflowInterpreterConfiguration config) {
		return config.getWorkflow().getExecutionState()==WorkflowExecutionState.PAUSED;
	}

	@Override
	public boolean isExecutionTerminated(WorkflowInterpreterConfiguration config) {
		return config.getWorkflow().getExecutionState()==WorkflowExecutionState.STOPPED;
	}

}