org.camunda.bpm.engine.impl.persistence.entity.TaskMeterLogEntity Maven / Gradle / Ivy
/*
* 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.io.Serializable;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.impl.db.DbEntity;
import org.camunda.bpm.engine.impl.db.HasDbReferences;
public class TaskMeterLogEntity implements DbEntity, HasDbReferences, Serializable {
private static final long serialVersionUID = 1L;
protected String id;
protected Date timestamp;
protected long assigneeHash;
public TaskMeterLogEntity(String assignee, Date timestamp) {
this.assigneeHash = createHashAsLong(assignee);
this.timestamp = timestamp;
}
protected long createHashAsLong(String assignee) {
String algorithm = "MD5";
try {
// create a 64 bit (8 byte) hash from an MD5 hash (128 bit) and convert to a long (8 byte)
MessageDigest digest = MessageDigest.getInstance(algorithm);
digest.update(assignee.getBytes(StandardCharsets.UTF_8));
return ByteBuffer.wrap(digest.digest(), 0, 8).getLong();
} catch (NoSuchAlgorithmException e) {
throw new ProcessEngineException("Cannot lookup hash algorithm '" + algorithm + "'");
}
}
public TaskMeterLogEntity() {
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Date getTimestamp() {
return timestamp;
}
public void setTimestamp(Date timestamp) {
this.timestamp = timestamp;
}
public long getAssigneeHash() {
return assigneeHash;
}
public void setAssigneeHash(long assigneeHash) {
this.assigneeHash = assigneeHash;
}
public Object getPersistentState() {
// immutable
return TaskMeterLogEntity.class;
}
@Override
public Set getReferencedEntityIds() {
Set referencedEntityIds = new HashSet<>();
return referencedEntityIds;
}
@Override
public Map getReferencedEntitiesIdAndClass() {
Map referenceIdAndClass = new HashMap<>();
return referenceIdAndClass;
}
}