/* 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.util.List;
import java.util.Map;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.impl.Page;
import org.activiti.engine.impl.TaskQueryImpl;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.AbstractManager;
import org.activiti.engine.task.Task;
/**
* @author Tom Baeyens
*/
public class TaskManager extends AbstractManager {
@SuppressWarnings({ "unchecked", "rawtypes" })
public void deleteTasksByProcessInstanceId(String processInstanceId, String deleteReason, boolean cascade) {
List<TaskEntity> tasks = (List) getDbSqlSession()
.createTaskQuery()
.processInstanceId(processInstanceId)
.list();
String reason = (deleteReason == null || deleteReason.length() == 0) ? TaskEntity.DELETE_REASON_DELETED : deleteReason;
for (TaskEntity task: tasks) {
deleteTask(task, reason, cascade);
}
}
public void deleteTask(TaskEntity task, String deleteReason, boolean cascade) {
if (!task.isDeleted()) {
task.setDeleted(true);
CommandContext commandContext = Context.getCommandContext();
String taskId = task.getId();
List<Task> subTasks = findTasksByParentTaskId(taskId);
for (Task subTask: subTasks) {
deleteTask((TaskEntity) subTask, deleteReason, cascade);
}
commandContext
.getIdentityLinkManager()
.deleteIdentityLinksByTaskId(taskId);
commandContext
.getVariableInstanceManager()
.deleteVariableInstanceByTask(task);
if (cascade) {
commandContext
.getHistoricTaskInstanceManager()
.deleteHistoricTaskInstanceById(taskId);
} else {
commandContext
.getHistoryManager()
.recordTaskEnd(taskId, deleteReason);
}
getDbSqlSession().delete(task);
}
}
public TaskEntity findTaskById(String id) {
if (id == null) {
throw new ActivitiException("Invalid task id : null");
}
return (TaskEntity) getDbSqlSession().selectOne("selectTask", id);
}
@SuppressWarnings("unchecked")
public List<TaskEntity> findTasksByExecutionId(String executionId) {
return getDbSqlSession().selectList("selectTasksByExecutionId", executionId);
}
@SuppressWarnings("unchecked")
public List<TaskEntity> findTasksByProcessInstanceId(String processInstanceId) {
return getDbSqlSession().selectList("selectTasksByProcessInstanceId", processInstanceId);
}
@Deprecated
public List<Task> findTasksByQueryCriteria(TaskQueryImpl taskQuery, Page page) {
taskQuery.setFirstResult(page.getFirstResult());
taskQuery.setMaxResults(page.getMaxResults());
return findTasksByQueryCriteria(taskQuery);
}
@SuppressWarnings("unchecked")
public List<Task> findTasksByQueryCriteria(TaskQueryImpl taskQuery) {
final String query = "selectTaskByQueryCriteria";
return getDbSqlSession().selectList(query, taskQuery);
}
public long findTaskCountByQueryCriteria(TaskQueryImpl taskQuery) {
return (Long) getDbSqlSession().selectOne("selectTaskCountByQueryCriteria", taskQuery);
}
@SuppressWarnings("unchecked")
public List<Task> findTasksByNativeQuery(Map<String, Object> parameterMap, int firstResult, int maxResults) {
return getDbSqlSession().selectListWithRawParameter("selectTaskByNativeQuery", parameterMap, firstResult, maxResults);
}
public long findTaskCountByNativeQuery(Map<String, Object> parameterMap) {
return (Long) getDbSqlSession().selectOne("selectTaskCountByNativeQuery", parameterMap);
}
@SuppressWarnings("unchecked")
public List<Task> findTasksByParentTaskId(String parentTaskId) {
return getDbSqlSession().selectList("selectTasksByParentTaskId", parentTaskId);
}
public void deleteTask(String taskId, String deleteReason, boolean cascade) {
TaskEntity task = Context
.getCommandContext()
.getTaskManager()
.findTaskById(taskId);
if (task!=null) {
if(task.getExecutionId() != null) {
throw new ActivitiException("The task cannot be deleted because is part of a running process");
}
String reason = (deleteReason == null || deleteReason.length() == 0) ? TaskEntity.DELETE_REASON_DELETED : deleteReason;
deleteTask(task, reason, cascade);
} else if (cascade) {
Context
.getCommandContext()
.getHistoricTaskInstanceManager()
.deleteHistoricTaskInstanceById(taskId);
}
}
}