| /* |
| * 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.taverna.platform.execution.api; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.taverna.robundle.Bundle; |
| |
| import org.apache.taverna.platform.report.WorkflowReport; |
| import org.apache.taverna.scufl2.api.container.WorkflowBundle; |
| import org.apache.taverna.scufl2.api.core.Workflow; |
| import org.apache.taverna.scufl2.api.profiles.Profile; |
| |
| /** |
| * A common super type for concrete implementations of <code>ExecutionService</code>s. |
| * |
| * @author David Withers |
| */ |
| public abstract class AbstractExecutionService implements ExecutionService { |
| private final String ID; |
| private final String name; |
| private final String description; |
| private final Map<String, Execution> executionMap; |
| |
| public AbstractExecutionService(String ID, String name, String description) { |
| this.ID = ID; |
| this.name = name; |
| this.description = description; |
| executionMap = Collections.synchronizedMap(new HashMap<String, Execution>()); |
| } |
| |
| @Override |
| public String getID() { |
| return ID; |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public String getDescription() { |
| return description; |
| } |
| |
| @Override |
| public String createExecution(ExecutionEnvironment executionEnvironment, |
| WorkflowBundle workflowBundle, Workflow workflow, Profile profile, |
| Bundle dataBundle) throws InvalidWorkflowException { |
| Execution execution = createExecutionImpl(workflowBundle, workflow, profile, dataBundle); |
| executionMap.put(execution.getID(), execution); |
| return execution.getID(); |
| } |
| |
| /** |
| * Creates an implementation of an Execution. |
| * |
| * To be implemented by concrete implementations of <code>ExecutionService</code>. |
| * |
| * @param workflowBundle |
| * the <code>WorkflowBundle</code> containing the <code>Workflow</code>s required for |
| * execution |
| * @param workflow |
| * the <code>Workflow</code> to execute |
| * @param profile |
| * the <code>Profile</code> to use when executing the <code>Workflow</code> |
| * @param dataBundle |
| * the <code>Bundle</code> containing the data values for the <code>Workflow</code> |
| * @return a new Execution implementation |
| * @throws InvalidWorkflowException |
| * if the specified workflow is invalid |
| */ |
| protected abstract Execution createExecutionImpl( |
| WorkflowBundle workflowBundle, Workflow workflow, Profile profile, |
| Bundle dataBundle) throws InvalidWorkflowException; |
| |
| @Override |
| public WorkflowReport getWorkflowReport(String executionID) |
| throws InvalidExecutionIdException { |
| return getExecution(executionID).getWorkflowReport(); |
| } |
| |
| @Override |
| public void delete(String executionID) throws InvalidExecutionIdException { |
| getExecution(executionID).delete(); |
| executionMap.remove(executionID); |
| } |
| |
| @Override |
| public void start(String executionID) throws InvalidExecutionIdException { |
| getExecution(executionID).start(); |
| } |
| |
| @Override |
| public void pause(String executionID) throws InvalidExecutionIdException { |
| getExecution(executionID).pause(); |
| } |
| |
| @Override |
| public void resume(String executionID) throws InvalidExecutionIdException { |
| getExecution(executionID).resume(); |
| } |
| |
| @Override |
| public void cancel(String executionID) throws InvalidExecutionIdException { |
| getExecution(executionID).cancel(); |
| } |
| |
| protected Execution getExecution(String executionID) |
| throws InvalidExecutionIdException { |
| Execution execution = executionMap.get(executionID); |
| if (execution == null) |
| throw new InvalidExecutionIdException("Execution ID " + executionID |
| + " is not valid"); |
| return execution; |
| } |
| |
| } |