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 }