/* 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.cmd;
import java.io.Serializable;
import java.util.List;
import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.ActivitiObjectNotFoundException;
import org.activiti.engine.history.HistoricIdentityLink;
import org.activiti.engine.history.HistoricTaskInstance;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.HistoricIdentityLinkEntity;
import org.activiti.engine.impl.persistence.entity.HistoricTaskInstanceEntity;
import org.activiti.engine.task.IdentityLinkType;
/**
* @author Frederik Heremans
*/
public class GetHistoricIdentityLinksForTaskCmd implements Command<List<HistoricIdentityLink>>, Serializable {
private static final long serialVersionUID = 1L;
protected String taskId;
protected String processInstanceId;
public GetHistoricIdentityLinksForTaskCmd(String taskId, String processInstanceId) {
if(taskId == null && processInstanceId == null) {
throw new ActivitiIllegalArgumentException("taskId or processInstanceId is required");
}
this.taskId = taskId;
this.processInstanceId = processInstanceId;
}
public List<HistoricIdentityLink> execute(CommandContext commandContext) {
if(taskId != null) {
return getLinksForTask(commandContext);
} else {
return getLinksForProcessInstance(commandContext);
}
}
@SuppressWarnings({"unchecked", "rawtypes" })
protected List<HistoricIdentityLink> getLinksForTask(CommandContext commandContext) {
HistoricTaskInstanceEntity task = commandContext
.getHistoricTaskInstanceEntityManager()
.findHistoricTaskInstanceById(taskId);
if(task == null) {
throw new ActivitiObjectNotFoundException("No historic task exists with the given id: " + taskId, HistoricTaskInstance.class);
}
List<HistoricIdentityLink> identityLinks = (List) commandContext
.getHistoricIdentityLinkEntityManager()
.findHistoricIdentityLinksByTaskId(taskId);
// Similar to GetIdentityLinksForTask, return assignee and owner as identity link
if (task.getAssignee() != null) {
HistoricIdentityLinkEntity identityLink = new HistoricIdentityLinkEntity();
identityLink.setUserId(task.getAssignee());
identityLink.setTaskId(task.getId());
identityLink.setType(IdentityLinkType.ASSIGNEE);
identityLinks.add(identityLink);
}
if (task.getOwner() != null) {
HistoricIdentityLinkEntity identityLink = new HistoricIdentityLinkEntity();
identityLink.setTaskId(task.getId());
identityLink.setUserId(task.getOwner());
identityLink.setType(IdentityLinkType.OWNER);
identityLinks.add(identityLink);
}
return identityLinks;
}
@SuppressWarnings({"unchecked", "rawtypes" })
protected List<HistoricIdentityLink> getLinksForProcessInstance(CommandContext commandContext) {
return (List) commandContext
.getHistoricIdentityLinkEntityManager()
.findHistoricIdentityLinksByProcessInstanceId(processInstanceId);
}
}