/* 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.camunda.bpm.engine.impl.cmd;
import java.io.Serializable;
import org.camunda.bpm.engine.history.UserOperationLogEntry;
import org.camunda.bpm.engine.impl.interceptor.Command;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.impl.persistence.entity.AttachmentEntity;
import org.camunda.bpm.engine.impl.persistence.entity.PropertyChange;
import org.camunda.bpm.engine.impl.persistence.entity.TaskEntity;
import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull;
/**
* @author kristin.polenz@camunda.com
*/
public class DeleteTaskAttachmentCmd implements Command<Object>, Serializable {
private static final long serialVersionUID = 1L;
protected String attachmentId;
protected String taskId;
public DeleteTaskAttachmentCmd(String taskId, String attachmentId) {
this.attachmentId = attachmentId;
this.taskId = taskId;
}
public Object execute(CommandContext commandContext) {
AttachmentEntity attachment = (AttachmentEntity) commandContext
.getAttachmentManager()
.findAttachmentByTaskIdAndAttachmentId(taskId, attachmentId);
ensureNotNull("No attachment exist for task id '" + taskId + " and attachmentId '" + attachmentId + "'.", "attachment", attachment);
commandContext
.getDbEntityManager()
.delete(attachment);
if (attachment.getContentId() != null) {
commandContext
.getByteArrayManager()
.deleteByteArrayById(attachment.getContentId());
}
if (attachment.getTaskId() != null) {
TaskEntity task = commandContext
.getTaskManager()
.findTaskById(attachment.getTaskId());
PropertyChange propertyChange = new PropertyChange("name", null, attachment.getName());
commandContext.getOperationLogManager()
.logAttachmentOperation(UserOperationLogEntry.OPERATION_TYPE_DELETE_ATTACHMENT, task, propertyChange);
}
return null;
}
}