package org.infinispan.jcache.annotation;
import org.infinispan.jcache.logging.Log;
import javax.cache.Cache;
import javax.cache.annotation.CacheKeyGenerator;
import javax.cache.annotation.CacheKeyInvocationContext;
import javax.cache.annotation.CachePut;
import javax.cache.annotation.CacheResolver;
import javax.cache.annotation.GeneratedCacheKey;
import javax.interceptor.InvocationContext;
import java.io.Serializable;
/**
* Base {@link javax.cache.annotation.CachePut} interceptor implementation.
*
* @author Kevin Pollet <kevin.pollet@serli.com> (C) 2011 SERLI
* @author Galder Zamarreño
*/
public abstract class AbstractCachePutInterceptor implements Serializable {
private final CacheResolver cacheResolver;
private final CacheKeyInvocationContextFactory contextFactory;
public AbstractCachePutInterceptor(CacheResolver cacheResolver, CacheKeyInvocationContextFactory contextFactory) {
this.cacheResolver = cacheResolver;
this.contextFactory = contextFactory;
}
public Object cachePut(InvocationContext invocationContext) throws Exception {
if (getLog().isTraceEnabled()) {
getLog().tracef("Interception of method named '%s'", invocationContext.getMethod().getName());
}
final CacheKeyInvocationContext<CachePut> cacheKeyInvocationContext = contextFactory.getCacheKeyInvocationContext(invocationContext);
final CacheKeyGenerator cacheKeyGenerator = cacheKeyInvocationContext.unwrap(CacheKeyInvocationContextImpl.class).getCacheKeyGenerator();
final CachePut cachePut = cacheKeyInvocationContext.getCacheAnnotation();
final GeneratedCacheKey cacheKey = cacheKeyGenerator.generateCacheKey(cacheKeyInvocationContext);
final Cache<GeneratedCacheKey, Object> cache = cacheResolver.resolveCache(cacheKeyInvocationContext);
final Object valueToCache = cacheKeyInvocationContext.getValueParameter().getValue();
if (!cachePut.afterInvocation() && valueToCache != null) {
cache.put(cacheKey, valueToCache);
if (getLog().isTraceEnabled()) {
getLog().tracef("Value '%s' cached in cache '%s' with key '%s' before method invocation", valueToCache, cache.getName(), cacheKey);
}
}
final Object result = invocationContext.proceed();
if (cachePut.afterInvocation() && valueToCache != null) {
cache.put(cacheKey, valueToCache);
if (getLog().isTraceEnabled()) {
getLog().tracef("Value '%s' cached in cache '%s' with key '%s' after method invocation", valueToCache, cache.getName(), cacheKey);
}
}
return result;
}
protected abstract Log getLog();
}