spring SimpleExceptionCacheResolver 源码
spring SimpleExceptionCacheResolver 代码
文件路径：/spring-context-support/src/main/java/org/springframework/cache/jcache/interceptor/SimpleExceptionCacheResolver.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.jcache.interceptor;
import java.util.Collection;
import java.util.Collections;
import org.springframework.cache.CacheManager;
import org.springframework.cache.interceptor.AbstractCacheResolver;
import org.springframework.cache.interceptor.BasicOperation;
import org.springframework.cache.interceptor.CacheOperationInvocationContext;
import org.springframework.cache.interceptor.CacheResolver;
/**
* A simple {@link CacheResolver} that resolves the exception cache
* based on a configurable {@link CacheManager} and the name of the
* cache: {@link CacheResultOperation#getExceptionCacheName()}.
*
* @author Stephane Nicoll
* @since 4.1
* @see CacheResultOperation#getExceptionCacheName()
*/
public class SimpleExceptionCacheResolver extends AbstractCacheResolver {
public SimpleExceptionCacheResolver(CacheManager cacheManager) {
super(cacheManager);
}
@Override
protected Collection<String> getCacheNames(CacheOperationInvocationContext<?> context) {
BasicOperation operation = context.getOperation();
if (!(operation instanceof CacheResultOperation cacheResultOperation)) {
throw new IllegalStateException("Could not extract exception cache name from " + operation);
}
String exceptionCacheName = cacheResultOperation.getExceptionCacheName();
if (exceptionCacheName != null) {
return Collections.singleton(exceptionCacheName);
}
return null;
}
}
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