org.springframework.test.jpa.OrmXmlOverridingShadowingClassLoader Maven / Gradle / Ivy
/*
* Copyright 2002-2006 the original author or authors.
*
* Licensed 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.springframework.test.jpa;
import java.util.LinkedList;
import java.util.List;
import org.springframework.instrument.classloading.ResourceOverridingShadowingClassLoader;
/**
* Subclass of ShadowingClassLoader that overrides attempts to
* locate orm.xml.
*
* This class must not be an inner class of AbstractJpaTests
* to avoid it being loaded until first used.
*
* @author Rod Johnson
* @author Adrian Colyer
* @since 2.0
*/
class OrmXmlOverridingShadowingClassLoader extends ResourceOverridingShadowingClassLoader {
/**
* Default location of the orm.xml file in the class path:
* "META-INF/orm.xml"
*/
public static final String DEFAULT_ORM_XML_LOCATION = "META-INF/orm.xml";
private final List providerPrefixes = new LinkedList();
{
// Automatically exclude classes from these well-known persistence providers.
this.providerPrefixes.add("oracle.toplink.essentials");
// Do NOT exclude Hibernate classes --
// this causes class casts due to use of CGLIB by Hibernate.
// Same goes for OpenJPA which will not enhance the domain classes.
}
public OrmXmlOverridingShadowingClassLoader(ClassLoader loader, String realOrmXmlLocation) {
super(loader);
override(DEFAULT_ORM_XML_LOCATION, realOrmXmlLocation);
}
@Override
protected boolean isClassNameExcludedFromShadowing(String className) {
for (String providerPrefix : providerPrefixes) {
if (className.startsWith(providerPrefix)) {
return true;
}
}
// Also do not shadow JUnit infrastructure.
if (className.startsWith("junit")) {
return true;
}
return false;
}
}