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/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.persistence.entity;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.camunda.bpm.engine.impl.db.ListQueryParameterObject;
import org.camunda.bpm.engine.impl.db.entitymanager.operation.DbOperation;
import org.camunda.bpm.engine.impl.persistence.AbstractManager;
import org.camunda.bpm.engine.impl.util.ClockUtil;
/**
* @author Joram Barrez
*/
public class ByteArrayManager extends AbstractManager {
/**
* Deletes the {@link ByteArrayEntity} with the given id from the database.
* Important: this operation will NOT do any optimistic locking, to avoid loading the
* bytes in memory. So use this method only in conjunction with an entity that has
* optimistic locking!.
*/
public void deleteByteArrayById(String byteArrayEntityId) {
getDbEntityManager().delete(ByteArrayEntity.class, "deleteByteArrayNoRevisionCheck", byteArrayEntityId);
}
public void insertByteArray(ByteArrayEntity arr) {
arr.setCreateTime(ClockUtil.getCurrentTime());
getDbEntityManager().insert(arr);
}
public DbOperation addRemovalTimeToByteArraysByRootProcessInstanceId(String rootProcessInstanceId, Date removalTime, Integer batchSize) {
Map parameters = new HashMap<>();
parameters.put("rootProcessInstanceId", rootProcessInstanceId);
parameters.put("removalTime", removalTime);
parameters.put("maxResults", batchSize);
return getDbEntityManager()
.updatePreserveOrder(ByteArrayEntity.class, "updateByteArraysByRootProcessInstanceId", parameters);
}
public List addRemovalTimeToByteArraysByProcessInstanceId(String processInstanceId, Date removalTime, Integer batchSize) {
Map parameters = new HashMap<>();
parameters.put("processInstanceId", processInstanceId);
parameters.put("removalTime", removalTime);
parameters.put("maxResults", batchSize);
// Make individual statements for each entity type that references byte arrays.
// This can lead to query plans that involve less aggressive locking by databases (e.g. DB2).
// See CAM-10360 for reference.
List operations = new ArrayList<>();
operations.add(getDbEntityManager()
.updatePreserveOrder(ByteArrayEntity.class, "updateVariableByteArraysByProcessInstanceId", parameters));
operations.add(getDbEntityManager()
.updatePreserveOrder(ByteArrayEntity.class, "updateDecisionInputsByteArraysByProcessInstanceId", parameters));
operations.add(getDbEntityManager()
.updatePreserveOrder(ByteArrayEntity.class, "updateDecisionOutputsByteArraysByProcessInstanceId", parameters));
operations.add(getDbEntityManager()
.updatePreserveOrder(ByteArrayEntity.class, "updateJobLogByteArraysByProcessInstanceId", parameters));
operations.add(getDbEntityManager()
.updatePreserveOrder(ByteArrayEntity.class, "updateExternalTaskLogByteArraysByProcessInstanceId", parameters));
operations.add(getDbEntityManager()
.updatePreserveOrder(ByteArrayEntity.class, "updateAttachmentByteArraysByProcessInstanceId", parameters));
return operations;
}
public DbOperation deleteByteArraysByRemovalTime(Date removalTime, int minuteFrom, int minuteTo, int batchSize) {
Map parameters = new HashMap();
parameters.put("removalTime", removalTime);
if (minuteTo - minuteFrom + 1 < 60) {
parameters.put("minuteFrom", minuteFrom);
parameters.put("minuteTo", minuteTo);
}
parameters.put("batchSize", batchSize);
return getDbEntityManager()
.deletePreserveOrder(ByteArrayEntity.class, "deleteByteArraysByRemovalTime",
new ListQueryParameterObject(parameters, 0, batchSize));
}
}
