package com.skyline.energy.definition;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.skyline.energy.annotation.Cache;
import com.skyline.energy.annotation.CacheDelete;
import com.skyline.energy.annotation.CacheUpdate;
import com.skyline.energy.annotation.VerUpdate;
import com.skyline.energy.exception.DaoGenerateException;
public class CacheDefinitionCollection {
private static final Log LOGGER = LogFactory.getLog(CacheDefinitionCollection.class);
private CacheDefinition cacheDefinition;
private List<CacheDeleteDefinition> cacheDeleteDefinitions;
private List<VersionUpdateDefinition> versionUpdateDefinitions;
public CacheDefinitionCollection(Method method) throws DaoGenerateException {
Cache cache = method.getAnnotation(Cache.class);
if (cache != null) {
cacheDefinition = new CacheDefinition(cache, method);
}
CacheDelete cacheDelete = method.getAnnotation(CacheDelete.class);
if (cacheDelete != null) {
CacheDeleteDefinition definition = new CacheDeleteDefinition(cacheDelete, method);
cacheDeleteDefinitions = lazyInit(cacheDeleteDefinitions);
cacheDeleteDefinitions.add(definition);
}
VerUpdate versionUpdate = method.getAnnotation(VerUpdate.class);
if (versionUpdate != null) {
VersionUpdateDefinition definition = new VersionUpdateDefinition(versionUpdate, method);
versionUpdateDefinitions = lazyInit(versionUpdateDefinitions);
versionUpdateDefinitions.add(definition);
}
CacheUpdate cacheUpdate = method.getAnnotation(CacheUpdate.class);
if (cacheUpdate != null) {
parseCacheUpdateDeiniftion(cacheUpdate, method);
}
if (cacheDefinition != null && (cacheDeleteDefinitions != null || versionUpdateDefinitions != null)) {
LOGGER.info("@Cache can't be used with other Cache Annotation, and it will be not effective");
cacheDefinition = null;
}
}
public boolean needCacheOpration() {
return (cacheDefinition != null || cacheDeleteDefinitions != null || versionUpdateDefinitions != null);
}
public CacheDefinition getCacheDefinition() {
return cacheDefinition;
}
public List<CacheDeleteDefinition> getCacheDeleteDefinitions() {
return cacheDeleteDefinitions;
}
public List<VersionUpdateDefinition> getVersionUpdateDefinitions() {
return versionUpdateDefinitions;
}
private <T> List<T> lazyInit(List<T> list) {
if (list == null) {
return new ArrayList<T>(1);
} else {
return list;
}
}
private void parseCacheUpdateDeiniftion(CacheUpdate cacheUpdate, Method method) throws DaoGenerateException {
CacheDelete[] deletes = cacheUpdate.delete();
VerUpdate[] updates = cacheUpdate.update();
for (CacheDelete delete : deletes) {
CacheDeleteDefinition definition = new CacheDeleteDefinition(delete, method);
cacheDeleteDefinitions = lazyInit(cacheDeleteDefinitions);
cacheDeleteDefinitions.add(definition);
}
for (VerUpdate update : updates) {
VersionUpdateDefinition definition = new VersionUpdateDefinition(update, method);
versionUpdateDefinitions = lazyInit(versionUpdateDefinitions);
versionUpdateDefinitions.add(definition);
}
}
}