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/* 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.
 */
package org.activiti.engine.impl.persistence.entity;

import java.io.Serializable;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.activiti.engine.ActivitiException;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.DelegateTask;
import org.activiti.engine.delegate.TaskListener;
import org.activiti.engine.impl.TaskContext;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.db.DbSqlSession;
import org.activiti.engine.impl.db.HasRevision;
import org.activiti.engine.impl.db.PersistentObject;
import org.activiti.engine.impl.delegate.TaskListenerInvocation;
import org.activiti.engine.impl.identity.Authentication;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.pvm.delegate.ActivityExecution;
import org.activiti.engine.impl.task.TaskDefinition;
import org.activiti.engine.impl.util.ClockUtil;
import org.activiti.engine.task.DelegationState;
import org.activiti.engine.task.IdentityLink;
import org.activiti.engine.task.IdentityLinkType;
import org.activiti.engine.task.Task;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Tom Baeyens
 * @author Joram Barrez
 * @author Falko Menge
 */ 
public class TaskEntity extends VariableScopeImpl implements Task, DelegateTask, Serializable, PersistentObject, HasRevision {

//  public static final String DELETE_REASON_COMPLETED = "completed";
//  public static final String DELETE_REASON_DELETED = "deleted";
  public static final String DELETE_REASON_COMPLETED = "完成";
  public static final String DELETE_REASON_DELETED = "删除";
  private static Logger log = LoggerFactory.getLogger(TaskEntity.class);
  private static final long serialVersionUID = 1L;

  protected int revision;

  protected String owner;
  protected String assignee;
  protected DelegationState delegationState;
  
  protected String parentTaskId;
  
  protected String name;
  protected String description;
  protected int priority = DEFAULT_PRIORITY;
  protected Date createTime; // The time when the task has been created
  protected Date dueDate;
  protected int suspensionState = SuspensionState.ACTIVE.getStateCode();
  
  protected boolean isIdentityLinksInitialized = false;
  protected List taskIdentityLinkEntities = new ArrayList(); 
  
  protected String executionId;
  protected ExecutionEntity execution;
  
  protected String processInstanceId;
  protected ExecutionEntity processInstance;
  
  protected String processDefinitionId;
  
  protected TaskDefinition taskDefinition;
  protected String taskDefinitionKey;
  
  protected boolean isDeleted;
  
  protected String eventName;
  /**
   * 超时是否已经发送
   */
  protected int OVERTIMESEND;
  /**
   * '任务持续时间限制
   */
  protected long DURATION_NODE;
  /**
   * 预警是否已发送
   */
  protected int ADVANCESEND;
  /**
   * 提前预警时间
   */
  protected Timestamp ALERTTIME;
  /**
   * 超时告警时间
   */
  protected Timestamp OVERTIME;
  /**
   * 预警时间率
   */
  protected int NOTICERATE;
  
  /**
   * 节假日策略
   * '节假日策略，1-考虑节假日，不考虑作息时间，0-不考虑节假日，不考虑作息时间，2-考虑节假日，考虑作息时间，默认值为1';
   */
  protected int IS_CONTAIN_HOLIDAY;
  protected HistoricTaskInstanceEntity historicTaskInstanceEntity;
  protected HistoricActivityInstanceEntity historicActivityInstanceEntity;
  
  public TaskEntity() {
  }

  public TaskEntity(String taskId) {
    this.id = taskId;
  }
  
  public void synstatetoHistory()
  {
	      this.historicTaskInstanceEntity.setALERTTIME(getALERTTIME());
	      this.historicTaskInstanceEntity.setOVERTIME(getOVERTIME());
		  this.historicTaskInstanceEntity.setIS_CONTAIN_HOLIDAY(getIS_CONTAIN_HOLIDAY());
		  this.historicTaskInstanceEntity.setDURATION_NODE(getDURATION_NODE());
		  this.historicTaskInstanceEntity.setNOTICERATE(getNOTICERATE());
		  CommandContext commandContext = Context.getCommandContext();
		    // if there is no command context, then it means that the user is calling the 
		    // setAssignee outside a service method.  E.g. while creating a new task.
		    if (commandContext!=null) {
		      commandContext
		        .getHistoryManager()
		        .recordTaskKPIChange(this);
		    }
		  
  }
  
  /** creates and initializes a new persistent task. */
  public static TaskEntity createAndInsert(ActivityExecution execution) {
    TaskEntity task = create();
    task.insert((ExecutionEntity) execution);
    return task;
  }

  public void insert(ExecutionEntity execution) {
    CommandContext commandContext = Context.getCommandContext();
    DbSqlSession dbSqlSession = commandContext.getDbSqlSession();
    dbSqlSession.insert(this);
    if(execution != null) {
      execution.addTask(this);
      
    }
    
    
    
    commandContext.getHistoryManager().recordTaskCreated(this, execution);
  }
  
  public void update() {
    // Needed to make history work: the setter will also update the historic task
    setOwner(this.getOwner());
    setAssignee(this.getAssignee());
    setDelegationState(this.getDelegationState());
    setName(this.getName());
    setDescription(this.getDescription());
    setPriority(this.getPriority());
    setCreateTime(this.getCreateTime());
    setDueDate(this.getDueDate());
    setParentTaskId(this.getParentTaskId());
    
    CommandContext commandContext = Context.getCommandContext();
    DbSqlSession dbSqlSession = commandContext.getDbSqlSession();
    dbSqlSession.update(this);
  }
  
  /**  Creates a new task.  Embedded state and create time will be initialized.
   * But this task still will have to be persisted. See {@link #insert(ExecutionEntity)}. */
  public static TaskEntity create() {
    TaskEntity task = new TaskEntity();
    task.isIdentityLinksInitialized = true;
    task.createTime = ClockUtil.getCurrentTime();
    return task;
  }

  public void complete() {
//    fireEvent(TaskListener.EVENTNAME_COMPLETE);
//
//    if (Authentication.getAuthenticatedUserId() != null && processInstanceId != null) {
//      getProcessInstance().involveUser(Authentication.getAuthenticatedUserId(), IdentityLinkType.PARTICIPANT);
//    }
//    
//    Context
//      .getCommandContext()
//      .getTaskEntityManager()
//      .deleteTask(this, TaskEntity.DELETE_REASON_COMPLETED, false);
//    
//    if (executionId!=null) {
//      ExecutionEntity execution = getExecution();
//      execution.removeTask(this);
//      execution.signal(null, null);
//    }
	  complete(null );
  }
  
  public void complete(TaskContext taskContext )
  {
	  complete(taskContext,(String)null ,(String)null,(String)null);
  }
  /**
   * 任务完成时特定的跳转目标地址
   */
  private String destinationTaskKey;
  public void complete(TaskContext taskContext ,String completeReason,String bussinessop,String bussinessRemark) {
	this.destinationTaskKey = taskContext.getDestinationTaskKey();
    fireEvent(TaskListener.EVENTNAME_COMPLETE);

    if (Authentication.getAuthenticatedUserId() != null && processInstanceId != null) {
      getProcessInstance().involveUser(Authentication.getAuthenticatedUserId(), IdentityLinkType.PARTICIPANT);
    }
    ExecutionEntity execution = null;
    /**
     * 什么情况下executionId为null？
     */
    if (executionId!=null) 
        execution = getExecution();
    if (execution!=null)
    {
//    	try {
//    		if(Context.enableMixMultiUserTask() )
//    		{
//    			String users =((FlowNodeActivityBehavior) execution.getActivity().getActivityBehavior()).getAssignee(this, execution);
//    		
//    			if(users == null || users.indexOf(",") < 0)
//    			{
//    				taskContext.setOneassignee(true);
//    			}
//    			else
//    				taskContext.setOneassignee(false);
//    		}
//			ControlParam controlParam = Context.getProcessEngineConfiguration().getKPIService().getControlParam(execution,this.taskDefinitionKey);
//			taskContext.setControlParam(controlParam);//设定当前任务的控制变量参数
//		} catch (Exception e) {
//			
//			log.error("",e);
//		}
    	Context.createTaskContextControlParam(taskContext, execution, this.taskDefinitionKey);
//    	this.execution.setTaskContext(taskContext);
    	Context.invocationDelegate(execution);
    }
    boolean customDTask = (destinationTaskKey != null && !destinationTaskKey.equals(""));
    String dtaskName = null;
    try
    {
    	dtaskName = customDTask && execution != null ?(String)execution.getActivity().getProcessDefinition().findActivity(destinationTaskKey).getProperty("name"):null;
    }
    catch(Exception e)
    {
//    	e.printStackTrace();
    }
    String deleteReason = null;
    if(completeReason == null)
    {
    	
	    if(!customDTask)
		{
	    	deleteReason = TaskEntity.DELETE_REASON_COMPLETED; 
		}
	    else
	    {
	    	if(taskContext.isIswithdraw())
	    	{
		    	if(dtaskName != null)
		    	{
		    		deleteReason = "撤销到节点["+dtaskName + "-" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
		    	else
		    	{
		    		deleteReason = "撤销到节点[" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
	    	}
	    	else if(taskContext.isIsjump())
	    	{
		    	if(dtaskName != null)
		    	{
		    		deleteReason = "跳转到节点["+dtaskName + "-" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
		    	else
		    	{
		    		deleteReason = "跳转到节点[" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
	    	}
	    	else if(taskContext.isIsrejected())
	    	{
	    		if(dtaskName != null)
		    	{
		    		deleteReason = "驳回到节点["+dtaskName + "-" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
		    	else
		    	{
		    		deleteReason = "驳回到节点[" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
	    	}
	    	else
	    	{
	    		if(dtaskName != null)
		    	{
		    		deleteReason = "跳转到节点["+dtaskName + "-" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
		    	else
		    	{
		    		deleteReason = "跳转到节点[" + destinationTaskKey + "]";//转到即自由跳转的意思
		    	}
	    	}
	    		
	    }
	    if(this.assignee != null && !this.assignee.equals(""))
	    {
	    	String userName = null;
	    	try
	    	{
	    		userName = Context.getProcessEngineConfiguration().getUserInfoMap().getUserName(this.assignee);
	    	}
	    	catch(Exception e)
	    	{
	//    		e.printStackTrace();
	    	}
	    	
	    	if(userName == null)
	    	{
	    		userName = assignee;
	    	}
	    	if(!userName.equals(assignee))
	    		userName = userName + "-" + this.assignee; 
			deleteReason = "任务被[" + userName + "]" +deleteReason;
	    }
	    
	    if(this.taskDefinitionKey != null)
	    {
	    	String taskName = null;
	    	if(execution != null)
	    	{
	    		
		    	taskName = (String)execution.getActivity().getProperty("name");
		    	
	    	}
	    	if(taskName != null)
	    	{
	    		deleteReason = "[" +taskName +"-"+ this.taskDefinitionKey+ "]" +deleteReason;
	    	}
	    	else
	    	{
	    		deleteReason = "["+this.taskDefinitionKey+ "]" +deleteReason;
	    	}
	    }
    }
    else
    {
    	deleteReason = completeReason;
    }
    
    if (execution!=null) {//执行信息设置
//      execution = getExecution();
      if(customDTask || completeReason != null)
      {
    	  execution.setDeleteReason(deleteReason);
    	 
      }
      execution.setBussinessop(bussinessop);
	  execution.setBussinessRemark(bussinessRemark);
	  if(this.autocomplete)//如果是自动完成任务则执行可能的java delegate逻辑
	    {
	    	Context.invocationAutoDelegate(execution);
	    }
    }
    
    Context
      .getCommandContext()
      .getTaskEntityManager()
      .deleteTask(this, deleteReason, false,  bussinessop,  bussinessRemark);
    
    if (execution!=null) {
    	/**自动处理任务时，回调业务处理类需要相关信息，因此将下面的代码放到删除任务之前设置，特此注释*/
//      if(customDTask || completeReason != null)
//      {
//    	  execution.setDeleteReason(deleteReason);
//    	 
//      }
//      execution.setBussinessop(bussinessop);
//	  execution.setBussinessRemark(bussinessRemark);
    	/**自动处理任务时，回调业务处理类需要相关信息，因此将下面的代码放到删除任务之前设置，注释结束 2014 12-31 by biaoping.yin*/
      execution.removeTask(this);
//      execution.signal(null, null);
//      if(destinationTaskKey == null || "".equals(destinationTaskKey))
//      {
//    	  execution.signal(null, null);
//      }
//      else
      {
    	  execution.signal(null, null);
      }
    }
  }
  
  public void delegate(String userId) {
    setDelegationState(DelegationState.PENDING);
    if (getOwner() == null) {
      setOwner(getAssignee());
    }
    setAssignee(userId);
  }

  public void resolve() {
    setDelegationState(DelegationState.RESOLVED);
    setAssignee(this.owner);
  }

  public Object getPersistentState() {
    Map persistentState = new  HashMap();
    persistentState.put("assignee", this.assignee);
    persistentState.put("owner", this.owner);
    persistentState.put("name", this.name);
    persistentState.put("priority", this.priority);
    if (executionId != null) {
      persistentState.put("executionId", this.executionId);
    }
    if (processDefinitionId != null) {
      persistentState.put("processDefinitionId", this.processDefinitionId);
    }
    if (createTime != null) {
      persistentState.put("createTime", this.createTime);
    }
    if(description != null) {
      persistentState.put("description", this.description);
    }
    if(dueDate != null) {
      persistentState.put("dueDate", this.dueDate);
    }
    if (parentTaskId != null) {
      persistentState.put("parentTaskId", this.parentTaskId);
    }
    if (delegationState != null) {
      persistentState.put("delegationState", this.delegationState);
    }
    
    persistentState.put("suspensionState", this.suspensionState);
    
    return persistentState;
  }
  
  public int getRevisionNext() {
    return revision+1;
  }

  // variables ////////////////////////////////////////////////////////////////
  
  @Override
  protected VariableScopeImpl getParentVariableScope() {
    if (getExecution()!=null) {
      return execution;
    }
    return null;
  }

  @Override
  protected void initializeVariableInstanceBackPointer(VariableInstanceEntity variableInstance) {
    variableInstance.setTaskId(id);
    variableInstance.setExecutionId(executionId);
    variableInstance.setProcessInstanceId(processInstanceId);
  }

  @Override
  protected List loadVariableInstances() {
    return Context
      .getCommandContext()
      .getVariableInstanceEntityManager()
      .findVariableInstancesByTaskId(id);
  }

  // execution ////////////////////////////////////////////////////////////////

  public ExecutionEntity getExecution() {
    if ( (execution==null) && (executionId!=null) ) {
      this.execution = Context
        .getCommandContext()
        .getExecutionEntityManager()
        .findExecutionById(executionId);
      
    }
    return execution;
  }
  
  public void setExecution(DelegateExecution execution) {
    if (execution!=null) {
      this.execution = (ExecutionEntity) execution;
      this.executionId = this.execution.getId();
      this.processInstanceId = this.execution.getProcessInstanceId();
      this.processDefinitionId = this.execution.getProcessDefinitionId();
      
      Context.getCommandContext().getHistoryManager().recordTaskExecutionIdChange(this.id, executionId);
      
    } else {
      this.execution = null;
      this.executionId = null;
      this.processInstanceId = null;
      this.processDefinitionId = null;
    }
  }
    
  // task assignment //////////////////////////////////////////////////////////
  
  public IdentityLinkEntity addIdentityLink(String userId, String groupId, String type) {
    IdentityLinkEntity identityLinkEntity = IdentityLinkEntity.createAndInsert();
    getIdentityLinks().add(identityLinkEntity);
    identityLinkEntity.setTask(this);
    identityLinkEntity.setUserId(userId);
    identityLinkEntity.setGroupId(groupId);
    identityLinkEntity.setType(type);
    
    if (userId != null && processInstanceId != null) {
      getProcessInstance().involveUser(userId, IdentityLinkType.PARTICIPANT);
    }
    return identityLinkEntity;
  }
  
  public void deleteIdentityLink(String userId, String groupId, String type) {
    List identityLinks = Context
      .getCommandContext()
      .getIdentityLinkEntityManager()
      .findIdentityLinkByTaskUserGroupAndType(id, userId, groupId, type);
    
    for (IdentityLinkEntity identityLink: identityLinks) {
      Context
        .getCommandContext()
        .getDbSqlSession()
        .delete(identityLink);
    }
  }
  
  public Set getCandidates() {
    Set potentialOwners = new HashSet();
    for (IdentityLinkEntity identityLinkEntity : getIdentityLinks()) {
      if (IdentityLinkType.CANDIDATE.equals(identityLinkEntity.getType())) {
        potentialOwners.add(identityLinkEntity);
      }
    }
    return potentialOwners;
  }
  
  public void addCandidateUser(String userId) {
    addIdentityLink(userId, null, IdentityLinkType.CANDIDATE);
  }
  
  public void addCandidateUsers(Collection candidateUsers) {
    for (String candidateUser : candidateUsers) {
      addCandidateUser(candidateUser);
    }
  }
  
  public void addCandidateGroup(String groupId) {
    addIdentityLink(null, groupId, IdentityLinkType.CANDIDATE);
  }
  
  public void addCandidateGroups(Collection candidateGroups) {
    for (String candidateGroup : candidateGroups) {
      addCandidateGroup(candidateGroup);
    }
  }
  
  public void addGroupIdentityLink(String groupId, String identityLinkType) {
    addIdentityLink(null, groupId, identityLinkType);
  }

  public void addUserIdentityLink(String userId, String identityLinkType) {
    addIdentityLink(userId, null, identityLinkType);
  }

  public void deleteCandidateGroup(String groupId) {
    deleteGroupIdentityLink(groupId, IdentityLinkType.CANDIDATE);
  }

  public void deleteCandidateUser(String userId) {
    deleteUserIdentityLink(userId, IdentityLinkType.CANDIDATE);
  }

  public void deleteGroupIdentityLink(String groupId, String identityLinkType) {
    if (groupId!=null) {
      deleteIdentityLink(null, groupId, identityLinkType);
    }
  }

  public void deleteUserIdentityLink(String userId, String identityLinkType) {
    if (userId!=null) {
      deleteIdentityLink(userId, null, identityLinkType);
    }
  }

  public List getIdentityLinks() {
    if (!isIdentityLinksInitialized) {
      taskIdentityLinkEntities = Context
        .getCommandContext()
        .getIdentityLinkEntityManager()
        .findIdentityLinksByTaskId(id);
      isIdentityLinksInitialized = true;
    }
    
    return taskIdentityLinkEntities;
  }

  @SuppressWarnings("unchecked")
  public Map getActivityInstanceVariables() {
    if (execution!=null) {
      return execution.getVariables();
    }
    return Collections.EMPTY_MAP;
  }
  
  public void setExecutionVariables(Map parameters) {
    if (getExecution()!=null) {
      execution.setVariables(parameters);
    }
  }
  
  public String toString() {
    return "Task["+id+"]";
  }
  
  // special setters //////////////////////////////////////////////////////////
  
  public void setName(String taskName) {
    this.name = taskName;

    CommandContext commandContext = Context.getCommandContext();
    if (commandContext!=null) {
      commandContext
        .getHistoryManager()
        .recordTaskNameChange(id, taskName);
    }
  }

  /* plain setter for persistence */
  public void setNameWithoutCascade(String taskName) {
    this.name = taskName;
  }

  public void setDescription(String description) {
    this.description = description;

    CommandContext commandContext = Context.getCommandContext();
    if (commandContext!=null) {
      commandContext
        .getHistoryManager()
        .recordTaskDescriptionChange(id, description);
    }
  }

  /* plain setter for persistence */
  public void setDescriptionWithoutCascade(String description) {
    this.description = description;
  }

  public void setAssignee(String assignee) {
    if (assignee==null && this.assignee==null) {
      return;
    }
//    if (assignee!=null && assignee.equals(this.assignee)) {
//      return;
//    }
    this.assignee = assignee;

    CommandContext commandContext = Context.getCommandContext();
    // if there is no command context, then it means that the user is calling the 
    // setAssignee outside a service method.  E.g. while creating a new task.
    if (commandContext!=null) {
      commandContext
        .getHistoryManager()
        .recordTaskAssigneeChange(id, assignee);
      
      if (assignee != null && processInstanceId != null) {
        getProcessInstance().involveUser(assignee, IdentityLinkType.PARTICIPANT);
      }
      
      fireEvent(TaskListener.EVENTNAME_ASSIGNMENT);
    }
  }

  /* plain setter for persistence */
  public void setAssigneeWithoutCascade(String assignee) {
    this.assignee = assignee;
  }
  
  public void setOwner(String owner) {
    if (owner==null && this.owner==null) {
      return;
    }
//    if (owner!=null && owner.equals(this.owner)) {
//      return;
//    }
    this.owner = owner;

    CommandContext commandContext = Context.getCommandContext();
    if (commandContext!=null) {
      commandContext
        .getHistoryManager()
        .recordTaskOwnerChange(this, owner);
      
      if (owner != null && processInstanceId != null) {
        getProcessInstance().involveUser(owner, IdentityLinkType.PARTICIPANT);
      }
    }
  }

  /* plain setter for persistence */
  public void setOwnerWithoutCascade(String owner) {
    this.owner = owner;
  }
  
  public void setDueDate(Date dueDate) {
    this.dueDate = dueDate;
    
    CommandContext commandContext = Context.getCommandContext();
    if (commandContext!=null) {
      commandContext
        .getHistoryManager()
        .recordTaskDueDateChange(id, dueDate);
    }
  }

  public void setDueDateWithoutCascade(Date dueDate) {
    this.dueDate = dueDate;
  }
  
  public void setPriority(int priority) {
    this.priority = priority;
    
    CommandContext commandContext = Context.getCommandContext();
    if (commandContext!=null) {
      commandContext
        .getHistoryManager()
        .recordTaskPriorityChange(id, priority);
    }
  }

  public void setPriorityWithoutCascade(int priority) {
    this.priority = priority;
  }
  
  public void setParentTaskId(String parentTaskId) {
    this.parentTaskId = parentTaskId;
    
    CommandContext commandContext = Context.getCommandContext();
    if (commandContext!=null) {
      commandContext
        .getHistoryManager()
        .recordTaskParentTaskIdChange(id, parentTaskId);
    }
  }

  public void setParentTaskIdWithoutCascade(String parentTaskId) {
    this.parentTaskId = parentTaskId;
  }
  
  public void setTaskDefinitionKeyWithoutCascade(String taskDefinitionKey) {
       this.taskDefinitionKey = taskDefinitionKey;
  }       

  public void fireEvent(String taskEventName) {
    TaskDefinition taskDefinition = getTaskDefinition();
    if (taskDefinition != null) {
      List taskEventListeners = getTaskDefinition().getTaskListener(taskEventName);
      if (taskEventListeners != null) {
        for (TaskListener taskListener : taskEventListeners) {
          ExecutionEntity execution = getExecution();
          if (execution != null) {
            setEventName(taskEventName);
          }
          try {
            Context.getProcessEngineConfiguration()
              .getDelegateInterceptor()
              .handleInvocation(new TaskListenerInvocation(taskListener, (DelegateTask)this));
          }catch (Exception e) {
            throw new ActivitiException("Exception while invoking TaskListener: "+e.getMessage(), e);
          }
        }
      }
    }
  }
  
  @Override
  protected boolean isActivityIdUsedForDetails() {
    return false;
  }

  // modified getters and setters /////////////////////////////////////////////
  
  public void setTaskDefinition(TaskDefinition taskDefinition) {
    this.taskDefinition = taskDefinition;
    this.taskDefinitionKey = taskDefinition.getKey();
    
    CommandContext commandContext = Context.getCommandContext();
    if(commandContext != null) {
      commandContext.getHistoryManager().recordTaskDefinitionKeyChange(this, taskDefinitionKey);
    }
  }

  public TaskDefinition getTaskDefinition() {
    if (taskDefinition==null && taskDefinitionKey!=null) {
      ProcessDefinitionEntity processDefinition = Context
        .getProcessEngineConfiguration()
        .getDeploymentManager()
        .findDeployedProcessDefinitionById(processDefinitionId);
      taskDefinition = processDefinition.getTaskDefinitions().get(taskDefinitionKey);
    }
    return taskDefinition;
  }
  
  // getters and setters //////////////////////////////////////////////////////

  public int getRevision() {
    return revision;
  }

  public void setRevision(int revision) {
    this.revision = revision;
  }

  public String getName() {
    return name;
  }

  public String getDescription() {
    return description;
  }
  
  public Date getDueDate() {
    return dueDate;
  }
  
  public int getPriority() {
    return priority;
  }

  public Date getCreateTime() {
    return createTime;
  }

  public void setCreateTime(Date createTime) {
    this.createTime = createTime;
  }

  public String getExecutionId() {
    return executionId;
  }
  
  public String getProcessInstanceId() {
    return processInstanceId;
  }

  public String getProcessDefinitionId() {
    return processDefinitionId;
  }

  public void setProcessDefinitionId(String processDefinitionId) {
    this.processDefinitionId = processDefinitionId;
  }  
  
  public String getAssignee() {
    return assignee;
  }
  
  public String getTaskDefinitionKey() {
    return taskDefinitionKey;
  }
  
  public void setTaskDefinitionKey(String taskDefinitionKey) {
    this.taskDefinitionKey = taskDefinitionKey;
    
    CommandContext commandContext = Context.getCommandContext();
    if(commandContext != null) {
      commandContext.getHistoryManager().recordTaskDefinitionKeyChange(this, taskDefinitionKey);
    }
  }

  public String getEventName() {
    return eventName;
  }
  public void setEventName(String eventName) {
    this.eventName = eventName;
  }
  public void setExecutionId(String executionId) {
    this.executionId = executionId;
  }
  public ExecutionEntity getProcessInstance() {
    if (processInstance == null && processInstanceId != null) {
      processInstance = Context
          .getCommandContext()
          .getExecutionEntityManager()
          .findExecutionById(processInstanceId);
    } 
    return processInstance;
  }
  public void setProcessInstance(ExecutionEntity processInstance) {
    this.processInstance = processInstance;
  }
  public void setExecution(ExecutionEntity execution) {
    this.execution = execution;
  }
  public void setProcessInstanceId(String processInstanceId) {
    this.processInstanceId = processInstanceId;
  }
  public String getOwner() {
    return owner;
  }
  public DelegationState getDelegationState() {
    return delegationState;
  }
  public void setDelegationState(DelegationState delegationState) {
    this.delegationState = delegationState;
  }
  public String getDelegationStateString() {
    return (delegationState!=null ? delegationState.toString() : null);
  }
  public void setDelegationStateString(String delegationStateString) {
    this.delegationState = (delegationStateString!=null ? DelegationState.valueOf(DelegationState.class, delegationStateString) : null);
  }
  public boolean isDeleted() {
    return isDeleted;
  }
  public void setDeleted(boolean isDeleted) {
    this.isDeleted = isDeleted;
  }
  public String getParentTaskId() {
    return parentTaskId;
  }
  public Map getVariableInstances() {
    ensureVariableInstancesInitialized();
    return variableInstances;
  }
  public int getSuspensionState() {
    return suspensionState;
  }
  public void setSuspensionState(int suspensionState) {
    this.suspensionState = suspensionState;
  }
  public boolean isSuspended() {
    return suspensionState == SuspensionState.SUSPENDED.getStateCode();
  }

	public String getDestinationTaskKey() {
		return destinationTaskKey;
	}
	
	public int getOVERTIMESEND() {
		return OVERTIMESEND;
	}
	
	public void setOVERTIMESEND(int oVERTIMESEND) {
		OVERTIMESEND = oVERTIMESEND;
	}
	
	public long getDURATION_NODE() {
		return DURATION_NODE;
	}
	
	public void setDURATION_NODE(long dURATION_NODE) {
		DURATION_NODE = dURATION_NODE;
	}
	
	public int getADVANCESEND() {
		return ADVANCESEND;
	}
	
	public void setADVANCESEND(int aDVANCESEND) {
		ADVANCESEND = aDVANCESEND;
	}
	
	public Timestamp getALERTTIME() {
		return ALERTTIME;
	}
	
	public void setALERTTIME(Timestamp aLERTTIME) {
		ALERTTIME = aLERTTIME;
	}
	
	public Timestamp getOVERTIME() {
		return OVERTIME;
	}
	
	public void setOVERTIME(Timestamp oVERTIME) {
		OVERTIME = oVERTIME;
	}

	public int getNOTICERATE() {
		return NOTICERATE;
	}

	public void setNOTICERATE(int nOTICERATE) {
		NOTICERATE = nOTICERATE;
	}

	public int getIS_CONTAIN_HOLIDAY() {
		return IS_CONTAIN_HOLIDAY;
	}

	public void setIS_CONTAIN_HOLIDAY(int iS_CONTAIN_HOLIDAY) {
		IS_CONTAIN_HOLIDAY = iS_CONTAIN_HOLIDAY;
	}

	public HistoricTaskInstanceEntity getHistoricTaskInstanceEntity() {
		return historicTaskInstanceEntity;
	}

	public void setHistoricTaskInstanceEntity(
			HistoricTaskInstanceEntity historicTaskInstanceEntity) {
		this.historicTaskInstanceEntity = historicTaskInstanceEntity;
	}

	public HistoricActivityInstanceEntity getHistoricActivityInstanceEntity() {
		return historicActivityInstanceEntity;
	}

	public void setHistoricActivityInstanceEntity(
			HistoricActivityInstanceEntity historicActivityInstanceEntity) {
		this.historicActivityInstanceEntity = historicActivityInstanceEntity;
	}
	 protected boolean autocomplete;
	public void executeAutoDelegate(TaskContext taskContext) {
		this.autocomplete = true;
		
	}

	public boolean isAutocomplete() {
		return autocomplete;
	}

	public void setAutocomplete(boolean autocomplete) {
		this.autocomplete = autocomplete;
	}
}