/**
* 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.core.impl.cmd;
import java.util.ArrayList;
import java.util.List;
import com.founder.fix.fixflow.core.ProcessEngine;
import com.founder.fix.fixflow.core.ProcessEngineManagement;
import com.founder.fix.fixflow.core.exception.FixFlowException;
import com.founder.fix.fixflow.core.factory.ProcessObjectFactory;
import com.founder.fix.fixflow.core.impl.Context;
import com.founder.fix.fixflow.core.impl.bpmn.behavior.ProcessDefinitionBehavior;
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.expression.ExpressionMgmt;
import com.founder.fix.fixflow.core.impl.identity.Authentication;
import com.founder.fix.fixflow.core.impl.interceptor.Command;
import com.founder.fix.fixflow.core.impl.interceptor.CommandContext;
import com.founder.fix.fixflow.core.impl.persistence.ProcessDefinitionManager;
import com.founder.fix.fixflow.core.impl.persistence.ProcessInstanceManager;
import com.founder.fix.fixflow.core.impl.persistence.TaskManager;
import com.founder.fix.fixflow.core.impl.runtime.ProcessInstanceEntity;
import com.founder.fix.fixflow.core.impl.runtime.TokenEntity;
import com.founder.fix.fixflow.core.impl.util.StringUtil;
import com.founder.fix.fixflow.core.runtime.ExecutionContext;
import com.founder.fix.fixflow.core.task.TaskInstance;
import com.founder.fix.fixflow.core.task.TaskInstanceType;
import com.founder.fix.fixflow.core.task.TaskQuery;
public class GetRecoverTaskCmd implements Command<List<TaskInstance>>{
protected String taskId;
protected String taskCommandId;
public GetRecoverTaskCmd(String taskId,String taskCommandId)
{
this.taskId=taskId;
this.taskCommandId=taskCommandId;
}
public List<TaskInstance> execute(CommandContext commandContext) {
TaskManager taskManager = commandContext.getTaskManager();
TaskInstance taskInstanceQuery = taskManager.findTaskById(taskId);
if(taskId==null||taskId.equals("")){
throw new FixFlowException("taskId不能为空");
}
if(taskInstanceQuery==null){
throw new FixFlowException("没有查询到相关任务");
}
ProcessEngine processEngine = ProcessEngineManagement.getDefaultProcessEngine();
TaskQuery taskQuery = processEngine.getTaskService().createTaskQuery();
List<TaskInstance> taskInstancesEnd = taskQuery.processInstanceId(taskInstanceQuery.getProcessInstanceId())
.taskAssignee(Authentication.getAuthenticatedUserId()).addTaskType(TaskInstanceType.FIXFLOWTASK).addTaskType(TaskInstanceType.FIXNOTICETASK).taskIsEnd().list();
String tokenId = taskInstanceQuery.getTokenId();
String nodeId = taskInstanceQuery.getNodeId();
String processDefinitionId = taskInstanceQuery.getProcessDefinitionId();
ProcessInstanceManager processInstanceManager = Context.getCommandContext().getProcessInstanceManager();
String processInstanceId = taskInstanceQuery.getProcessInstanceId();
ProcessDefinitionManager processDefinitionManager = Context.getCommandContext().getProcessDefinitionManager();
ProcessDefinitionBehavior processDefinition = processDefinitionManager.findLatestProcessDefinitionById(processDefinitionId);
ProcessInstanceEntity processInstanceImpl = processInstanceManager.findProcessInstanceById(processInstanceId, processDefinition);
TokenEntity token = processInstanceImpl.getTokenMap().get(tokenId);
ExecutionContext executionContext = ProcessObjectFactory.FACTORYINSTANCE.createExecutionContext(token);
UserTaskBehavior userTask = (UserTaskBehavior) processDefinition.getDefinitions().getElement(nodeId);
TaskCommandInst taskCommandInst =userTask.getTaskCommandsMap().get(taskCommandId);
List<TaskInstance> taskInstances=new ArrayList<TaskInstance>();
Object returnValueObject = null;
if (taskCommandInst != null && taskCommandInst.getExpression() != null) {
try {
returnValueObject = ExpressionMgmt.execute(taskCommandInst.getExpression(), executionContext);
} catch (Exception e) {
throw new FixFlowException("用户命令表达式执行异常!", e);
}
}
if (returnValueObject == null || returnValueObject.equals("")) {
return taskInstancesEnd;
} else {
String nodeIdString = StringUtil.getString(returnValueObject);
String[] nodeIdSZ = nodeIdString.split(",");
for (TaskInstance taskInstanceTemp : taskInstancesEnd) {
if (isExist(nodeIdSZ, taskInstanceTemp.getNodeId())) {
taskInstances.add(taskInstanceTemp);
}
}
return taskInstances;
}
}
private boolean isExist(String[] contentStrings, String content) {
for (String string : contentStrings) {
if (string.equals(content)) {
return true;
}
}
return false;
}
}