cn.taketoday.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator Maven / Gradle / Ivy
/*
* Original Author -> Harry Yang ([email protected]) https://taketoday.cn
* Copyright © TODAY & 2017 - 2021 All Rights Reserved.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [http://www.gnu.org/licenses/]
*/
package cn.taketoday.aop.framework.autoproxy;
import cn.taketoday.beans.factory.BeanNameAware;
import cn.taketoday.lang.Nullable;
/**
* {@code BeanPostProcessor} implementation that creates AOP proxies based on all
* candidate {@code Advisor}s in the current {@code BeanFactory}. This class is
* completely generic; it contains no special code to handle any particular aspects,
* such as pooling aspects.
*
* It's possible to filter out advisors - for example, to use multiple post processors
* of this type in the same factory - by setting the {@code usePrefix} property to true,
* in which case only advisors beginning with the DefaultAdvisorAutoProxyCreator's bean
* name followed by a dot (like "aapc.") will be used. This default prefix can be changed
* from the bean name by setting the {@code advisorBeanNamePrefix} property.
* The separator (.) will also be used in this case.
*
* @author Rod Johnson
* @author Rob Harrop
* @since 4.0
*/
@SuppressWarnings("serial")
public class DefaultAdvisorAutoProxyCreator extends AbstractAdvisorAutoProxyCreator implements BeanNameAware {
/** Separator between prefix and remainder of bean name. */
public static final String SEPARATOR = ".";
private boolean usePrefix = false;
@Nullable
private String advisorBeanNamePrefix;
/**
* Set whether to only include advisors with a certain prefix in the bean name.
*
Default is {@code false}, including all beans of type {@code Advisor}.
*
* @see #setAdvisorBeanNamePrefix
*/
public void setUsePrefix(boolean usePrefix) {
this.usePrefix = usePrefix;
}
/**
* Return whether to only include advisors with a certain prefix in the bean name.
*/
public boolean isUsePrefix() {
return this.usePrefix;
}
/**
* Set the prefix for bean names that will cause them to be included for
* auto-proxying by this object. This prefix should be set to avoid circular
* references. Default value is the bean name of this object + a dot.
*
* @param advisorBeanNamePrefix the exclusion prefix
*/
public void setAdvisorBeanNamePrefix(@Nullable String advisorBeanNamePrefix) {
this.advisorBeanNamePrefix = advisorBeanNamePrefix;
}
/**
* Return the prefix for bean names that will cause them to be included
* for auto-proxying by this object.
*/
@Nullable
public String getAdvisorBeanNamePrefix() {
return this.advisorBeanNamePrefix;
}
@Override
public void setBeanName(String name) {
// If no infrastructure bean name prefix has been set, override it.
if (this.advisorBeanNamePrefix == null) {
this.advisorBeanNamePrefix = name + SEPARATOR;
}
}
/**
* Consider {@code Advisor} beans with the specified prefix as eligible, if activated.
*
* @see #setUsePrefix
* @see #setAdvisorBeanNamePrefix
*/
@Override
protected boolean isEligibleAdvisorBean(String beanName) {
if (!isUsePrefix()) {
return true;
}
String prefix = getAdvisorBeanNamePrefix();
return prefix != null && beanName.startsWith(prefix);
}
}