package act.db.di;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* 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
*
* http://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.
* #L%
*/
import act.app.DbServiceManager;
import act.db.DB;
import act.inject.DependencyInjectionListener;
import act.util.AnnotationUtil;
import act.util.DestroyableBase;
import org.osgl.$;
import org.osgl.logging.LogManager;
import org.osgl.logging.Logger;
import org.osgl.util.C;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;
public abstract class DaoInjectionListenerBase extends DestroyableBase implements DependencyInjectionListener {
protected Logger logger = LogManager.get(DaoInjectionListenerBase.class);
// Map type parameter array to (Model type, service ID) pair
private Map<List<Type>, $.T2<Class, String>> svcIdCache = C.newMap();
@Override
protected void releaseResources() {
svcIdCache.clear();
}
protected $.T2<Class, String> resolve(List<Type> typeParameters) {
$.T2<Class, String> resolved = svcIdCache.get(typeParameters);
if (null == resolved) {
resolved = findSvcId(typeParameters);
svcIdCache.put(typeParameters, resolved);
}
return resolved;
}
private $.T2<Class, String> findSvcId(List<Type> typeParameters) {
// the EbeanDao<Long, User> and MorphiaDao<User> case
Type modelType = (typeParameters.size() > 1) ? typeParameters.get(1) : typeParameters.get(0);
DB db = AnnotationUtil.declaredAnnotation((Class)modelType, DB.class);
return $.T2((Class) modelType, null == db ? DbServiceManager.DEFAULT : db.value());
}
}