spring CachePutInterceptor 源码
spring CachePutInterceptor 代码
文件路径：/spring-context-support/src/main/java/org/springframework/cache/jcache/interceptor/CachePutInterceptor.java
/*
* Copyright 2002-2018 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 javax.cache.annotation.CacheKeyInvocationContext;
import javax.cache.annotation.CachePut;
import org.springframework.cache.Cache;
import org.springframework.cache.interceptor.CacheErrorHandler;
import org.springframework.cache.interceptor.CacheOperationInvocationContext;
import org.springframework.cache.interceptor.CacheOperationInvoker;
/**
* Intercept methods annotated with {@link CachePut}.
*
* @author Stephane Nicoll
* @since 4.1
*/
@SuppressWarnings("serial")
class CachePutInterceptor extends AbstractKeyCacheInterceptor<CachePutOperation, CachePut> {
public CachePutInterceptor(CacheErrorHandler errorHandler) {
super(errorHandler);
}
@Override
protected Object invoke(
CacheOperationInvocationContext<CachePutOperation> context, CacheOperationInvoker invoker) {
CachePutOperation operation = context.getOperation();
CacheKeyInvocationContext<CachePut> invocationContext = createCacheKeyInvocationContext(context);
boolean earlyPut = operation.isEarlyPut();
Object value = invocationContext.getValueParameter().getValue();
if (earlyPut) {
cacheValue(context, value);
}
try {
Object result = invoker.invoke();
if (!earlyPut) {
cacheValue(context, value);
}
return result;
}
catch (CacheOperationInvoker.ThrowableWrapper ex) {
Throwable original = ex.getOriginal();
if (!earlyPut && operation.getExceptionTypeFilter().match(original.getClass())) {
cacheValue(context, value);
}
throw ex;
}
}
protected void cacheValue(CacheOperationInvocationContext<CachePutOperation> context, Object value) {
Object key = generateKey(context);
Cache cache = resolveCache(context);
doPut(cache, key, value);
}
}
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