/*
* Copyright 2007-2009 非也
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation。
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses.
*/
package org.fireflow.engine.taskinstance;
import org.fireflow.engine.EngineException;
import org.fireflow.engine.IProcessInstance;
import org.fireflow.engine.ITaskInstance;
import org.fireflow.engine.IWorkflowSession;
import org.fireflow.engine.RuntimeContext;
import org.fireflow.kernel.KernelException;
import org.fireflow.model.Task;
import org.fireflow.model.ToolTask;
import org.fireflow.model.WorkflowProcess;
/**
*
* @author 非也
* @version 1.0
* Created on Mar 21, 2009
*/
public class DefaultToolTaskInstanceRunner implements ITaskInstanceRunner{
/* (non-Javadoc)
* @see org.fireflow.engine.taskinstance.ITaskInstanceRunner#run(org.fireflow.engine.IWorkflowSession, org.fireflow.engine.RuntimeContext, org.fireflow.engine.IProcessInstance, org.fireflow.engine.ITaskInstance)
*/
public void run(IWorkflowSession currentSession, RuntimeContext runtimeContext, IProcessInstance processInstance,
ITaskInstance taskInstance) throws EngineException, KernelException {
if (!Task.TOOL.equals(taskInstance.getTaskType())) {
throw new EngineException(processInstance,
taskInstance.getActivity(),
"DefaultToolTaskInstanceRunner：TaskInstance的任务类型错误，只能为TOOL类型");
}
Task task = taskInstance.getTask();
if (task == null) {
WorkflowProcess process = taskInstance.getWorkflowProcess();
throw new EngineException(taskInstance.getProcessInstanceId(), process,
taskInstance.getTaskId(),
"The Task is null,can NOT start the taskinstance,");
}
if (((ToolTask) task).getApplication() == null || ((ToolTask) task).getApplication().getHandler() == null) {
WorkflowProcess process = taskInstance.getWorkflowProcess();
throw new EngineException(taskInstance.getProcessInstanceId(), process,
taskInstance.getTaskId(),
"The task.getApplication() is null or task.getApplication().getHandler() is null,can NOT start the taskinstance,");
}
Object obj = runtimeContext.getBeanByName(((ToolTask) task).getApplication().getHandler());
if (obj==null || !(obj instanceof IApplicationHandler)){
WorkflowProcess process = taskInstance.getWorkflowProcess();
throw new EngineException(taskInstance.getProcessInstanceId(), process,
taskInstance.getTaskId(),
"Run tool task instance error! Not found the instance of "+((ToolTask) task).getApplication().getHandler()+" or the instance not implements IApplicationHandler");
}
try {
((IApplicationHandler) obj).execute(taskInstance);
} catch (Exception e) {
//TODO wmj2003 对tool类型的task抛出的错误应该怎么处理？ 这个时候引擎会如何？整个流程是否还可以继续？
e.printStackTrace();
throw new EngineException(processInstance,
taskInstance.getActivity(),
"DefaultToolTaskInstanceRunner：TaskInstance的任务执行失败！");
}
ITaskInstanceManager taskInstanceManager = runtimeContext.getTaskInstanceManager();
taskInstanceManager.completeTaskInstance(currentSession, processInstance, taskInstance, null);
}
}