org.springframework.aop.framework.autoproxy.metadata.AttributesThreadLocalTargetSourceCreator Maven / Gradle / Ivy
/*
* Copyright 2002-2004 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.aop.framework.autoproxy.metadata;
import java.util.Collection;
import org.springframework.aop.framework.autoproxy.target.AbstractPrototypeBasedTargetSourceCreator;
import org.springframework.aop.target.AbstractPrototypeBasedTargetSource;
import org.springframework.aop.target.ThreadLocalTargetSource;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.metadata.Attributes;
/**
* PrototypeTargetSourceCreator driven by metadata. Creates a ThreadLocalTargetSource
* only if there's a ThreadLocalAttribute associated with the class.
* @author Rod Johnson
* @see org.springframework.aop.target.ThreadLocalTargetSource
*/
public class AttributesThreadLocalTargetSourceCreator extends AbstractPrototypeBasedTargetSourceCreator {
private final Attributes attributes;
public AttributesThreadLocalTargetSourceCreator(Attributes attributes) {
this.attributes = attributes;
}
protected AbstractPrototypeBasedTargetSource createPrototypeTargetSource(Object bean, String beanName, BeanFactory bf) {
Class beanClass = bean.getClass();
// See if there's a pooling attribute
Collection atts = attributes.getAttributes(beanClass, ThreadLocalAttribute.class);
if (atts.isEmpty()) {
// No pooling attribute: don't create a custom TargetSource
return null;
}
else {
return new ThreadLocalTargetSource();
}
}
}