/**
* Copyright 1996-2013 Founder International Co.,Ltd.
*
* Licensed 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.
*
* @author kenshin
*/
package com.founder.fix.fixflow.expand.cmd;
import com.founder.fix.fixflow.core.exception.FixFlowException;
import com.founder.fix.fixflow.core.impl.bpmn.behavior.TaskCommandInst;
import com.founder.fix.fixflow.core.impl.bpmn.behavior.UserTaskBehavior;
import com.founder.fix.fixflow.core.impl.cmd.AbstractExpandTaskCmd;
import com.founder.fix.fixflow.core.impl.interceptor.CommandContext;
import com.founder.fix.fixflow.core.impl.task.TaskInstanceEntity;
import com.founder.fix.fixflow.expand.command.RollBackTaskCommand;
public class RollBackTaskCmd extends AbstractExpandTaskCmd<RollBackTaskCommand, Void> {
/**
* 退回到的节点
*/
protected String rollBackNodeId;
public RollBackTaskCmd(RollBackTaskCommand rollBackTaskCommand) {
super(rollBackTaskCommand);
this.rollBackNodeId = rollBackTaskCommand.getRollBackNodeId();
}
public Void execute(CommandContext commandContext) {
// 初始化任务命令执行所需要的常用对象
loadProcessParameter(commandContext);
// 将外部变量注册到流程实例运行环境中
addVariable();
// 执行处理命令中的开发人员设置的表达式
runCommandExpression();
// 获取正在操作的任务实例对象
TaskInstanceEntity taskInstance = getTaskInstanceEntity();
// 获取正在操作的任务命令对象实例
TaskCommandInst taskCommand = getTaskCommandInst();
try {
UserTaskBehavior backNodeUserTask = (UserTaskBehavior) getExecutionContext().getProcessDefinition().getDefinitions().getElement(rollBackNodeId);
taskInstance.toFlowNodeEnd(taskCommand, taskComment, backNodeUserTask, null);
} catch (Exception e) {
throw new FixFlowException("任务: " + taskId + " 退回失败!", e);
}
try {
saveProcessInstance(commandContext);
} catch (Exception e) {
throw new FixFlowException("流程实例持久化失败!", e);
}
return null;
}
}