spring CacheOperationSourcePointcut 源码

  • 2022-08-08
  • 浏览 (342)

spring CacheOperationSourcePointcut 代码

文件路径:/spring-context/src/main/java/org/springframework/cache/interceptor/CacheOperationSourcePointcut.java

/*
 * Copyright 2002-2021 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
 *
 *      https://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.cache.interceptor;

import java.io.Serializable;
import java.lang.reflect.Method;

import org.springframework.aop.ClassFilter;
import org.springframework.aop.support.StaticMethodMatcherPointcut;
import org.springframework.cache.CacheManager;
import org.springframework.lang.Nullable;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;

/**
 * A Pointcut that matches if the underlying {@link CacheOperationSource}
 * has an attribute for a given method.
 *
 * @author Costin Leau
 * @author Juergen Hoeller
 * @since 3.1
 */
@SuppressWarnings("serial")
abstract class CacheOperationSourcePointcut extends StaticMethodMatcherPointcut implements Serializable {

	protected CacheOperationSourcePointcut() {
		setClassFilter(new CacheOperationSourceClassFilter());
	}


	@Override
	public boolean matches(Method method, Class<?> targetClass) {
		CacheOperationSource cas = getCacheOperationSource();
		return (cas != null && !CollectionUtils.isEmpty(cas.getCacheOperations(method, targetClass)));
	}

	@Override
	public boolean equals(@Nullable Object other) {
		if (this == other) {
			return true;
		}
		if (!(other instanceof CacheOperationSourcePointcut otherPc)) {
			return false;
		}
		return ObjectUtils.nullSafeEquals(getCacheOperationSource(), otherPc.getCacheOperationSource());
	}

	@Override
	public int hashCode() {
		return CacheOperationSourcePointcut.class.hashCode();
	}

	@Override
	public String toString() {
		return getClass().getName() + ": " + getCacheOperationSource();
	}


	/**
	 * Obtain the underlying {@link CacheOperationSource} (may be {@code null}).
	 * To be implemented by subclasses.
	 */
	@Nullable
	protected abstract CacheOperationSource getCacheOperationSource();


	/**
	 * {@link ClassFilter} that delegates to {@link CacheOperationSource#isCandidateClass}
	 * for filtering classes whose methods are not worth searching to begin with.
	 */
	private class CacheOperationSourceClassFilter implements ClassFilter {

		@Override
		public boolean matches(Class<?> clazz) {
			if (CacheManager.class.isAssignableFrom(clazz)) {
				return false;
			}
			CacheOperationSource cas = getCacheOperationSource();
			return (cas == null || cas.isCandidateClass(clazz));
		}
	}

}

相关信息

spring 源码目录

相关文章

spring AbstractCacheInvoker 源码

spring AbstractCacheResolver 源码

spring AbstractFallbackCacheOperationSource 源码

spring BasicOperation 源码

spring BeanFactoryCacheOperationSourceAdvisor 源码

spring CacheAspectSupport 源码

spring CacheErrorHandler 源码

spring CacheEvaluationContext 源码

spring CacheEvictOperation 源码

spring CacheExpressionRootObject 源码

0  赞