/** | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* distributed with this work for additional information | |
* regarding copyright ownership. The ASF licenses this file | |
* to you 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.apache.aries.jpa.blueprint.impl; | |
import java.lang.reflect.AccessibleObject; | |
import java.lang.reflect.Field; | |
import java.lang.reflect.Method; | |
import javax.persistence.EntityManager; | |
import javax.persistence.EntityManagerFactory; | |
import org.apache.aries.jpa.blueprint.supplier.impl.EmProxy; | |
import org.apache.aries.jpa.supplier.EmSupplier; | |
public class JpaAnnotatedMemberHandler { | |
private Object bean; | |
public JpaAnnotatedMemberHandler(Object bean) { | |
this.bean = bean; | |
} | |
public void handleSupplierMember(AccessibleObject member, String unitName, EmSupplier emSupplier) { | |
if (member instanceof Field) { | |
Field field = (Field)member; | |
try { | |
field.set(bean, getEmProxy(field.getType(), emSupplier)); | |
} catch (Exception e) { | |
throw new IllegalStateException("Error setting field " + field, e); | |
} | |
} else { | |
Method method = (Method)member; | |
try { | |
method.invoke(bean, getEmProxy(method.getParameterTypes()[0], emSupplier)); | |
} catch (Exception e) { | |
throw new IllegalStateException("Error invoking method " + method, e); | |
} | |
} | |
} | |
public void handleEmFactoryMethod(AccessibleObject member, String unitName, EntityManagerFactory emf) { | |
if (member instanceof Field) { | |
Field field = (Field)member; | |
try { | |
field.set(bean, getEmfProxy(field.getType(), emf)); | |
} catch (Exception e) { | |
throw new IllegalStateException("Error setting field " + field, e); | |
} | |
} else { | |
Method method = (Method)member; | |
try { | |
method.invoke(bean, getEmfProxy(method.getParameterTypes()[0], emf)); | |
} catch (Exception e) { | |
throw new IllegalStateException("Error invoking method " + method, e); | |
} | |
} | |
} | |
private Object getEmProxy(Class<?> clazz, EmSupplier emSupplier) { | |
if (clazz == EmSupplier.class) { | |
return emSupplier; | |
} else if (clazz == EntityManager.class) { | |
return EmProxy.create(emSupplier); | |
} else { | |
throw new IllegalStateException( | |
"Field or setter Method with @PersistenceContext has class not supported " | |
+ clazz.getName()); | |
} | |
} | |
private Object getEmfProxy(Class<?> clazz, EntityManagerFactory supplierProxy) { | |
if (clazz == EntityManagerFactory.class) { | |
return supplierProxy; | |
} else { | |
throw new IllegalStateException( | |
"Field or setter Method with @PersistenceUnit has class not supported " | |
+ clazz); | |
} | |
} | |
} |