001 /**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one or more
004 * contributor license agreements. See the NOTICE file distributed with
005 * this work for additional information regarding copyright ownership.
006 * The ASF licenses this file to You under the Apache License, Version 2.0
007 * (the "License"); you may not use this file except in compliance with
008 * the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.camel.bam.model;
019
020 import org.apache.camel.util.ObjectHelper;
021 import org.apache.commons.logging.Log;
022 import org.apache.commons.logging.LogFactory;
023 import org.springframework.orm.jpa.JpaTemplate;
024
025 import javax.persistence.Entity;
026 import javax.persistence.GeneratedValue;
027 import javax.persistence.Id;
028 import java.util.List;
029
030 /**
031 * @version $Revision: 1.1 $
032 */
033 @Entity
034 public class ProcessDefinition extends EntitySupport {
035 private static final transient Log log = LogFactory.getLog(ProcessDefinition.class);
036 private String name;
037
038 // This crap is required to work around a bug in hibernate
039 @Override
040 @Id
041 @GeneratedValue
042 public Long getId() {
043 return super.getId();
044 }
045
046 public String getName() {
047 return name;
048 }
049
050 public void setName(String name) {
051 this.name = name;
052 }
053
054 public static ProcessDefinition getRefreshedProcessDefinition(JpaTemplate template, ProcessDefinition definition) {
055 // TODO refresh doesn't tend to work - maybe its a spring thing?
056 //template.refresh(definition);
057
058 ObjectHelper.notNull(definition, "definition");
059 Long id = definition.getId();
060 if (id == null) {
061 log.warn("No primary key is available!");
062 return findOrCreateProcessDefinition(template, definition.getName());
063 }
064 definition = template.find(ProcessDefinition.class, id);
065 return definition;
066 }
067
068 public static ProcessDefinition findOrCreateProcessDefinition(JpaTemplate template, String processName) {
069 List<ProcessDefinition> list = template.find("select x from " + ProcessDefinition.class.getName() + " x where x.name = ?1", processName);
070 if (!list.isEmpty()) {
071 return list.get(0);
072 }
073 else {
074 ProcessDefinition answer = new ProcessDefinition();
075 answer.setName(processName);
076 template.persist(answer);
077 return answer;
078 }
079 }
080 }