spring CacheInterceptor 源码
spring CacheInterceptor 代码
文件路径：/spring-context/src/main/java/org/springframework/cache/interceptor/CacheInterceptor.java
/*
* Copyright 2002-2020 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.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* AOP Alliance MethodInterceptor for declarative cache
* management using the common Spring caching infrastructure
* ({@link org.springframework.cache.Cache}).
*
* <p>Derives from the {@link CacheAspectSupport} class which
* contains the integration with Spring's underlying caching API.
* CacheInterceptor simply calls the relevant superclass methods
* in the correct order.
*
* <p>CacheInterceptors are thread-safe.
*
* @author Costin Leau
* @author Juergen Hoeller
* @since 3.1
*/
@SuppressWarnings("serial")
public class CacheInterceptor extends CacheAspectSupport implements MethodInterceptor, Serializable {
@Override
@Nullable
public Object invoke(final MethodInvocation invocation) throws Throwable {
Method method = invocation.getMethod();
CacheOperationInvoker aopAllianceInvoker = () -> {
try {
return invocation.proceed();
}
catch (Throwable ex) {
throw new CacheOperationInvoker.ThrowableWrapper(ex);
}
};
Object target = invocation.getThis();
Assert.state(target != null, "Target must not be null");
try {
return execute(aopAllianceInvoker, target, method, invocation.getArguments());
}
catch (CacheOperationInvoker.ThrowableWrapper th) {
throw th.getOriginal();
}
}
}
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