cloudstack/server/src/com/cloud/dao/EntityManagerImpl.java

128 lines
4.2 KiB
Java

/**
* Copyright (C) 2010 Cloud.com, Inc. All rights reserved.
*
* This software is licensed under the GNU General Public License v3 or later.
*
* It is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package com.cloud.dao;
import java.io.Serializable;
import java.util.List;
import java.util.Map;
import javax.ejb.Local;
import javax.naming.ConfigurationException;
import net.sf.ehcache.Cache;
import com.cloud.utils.component.Manager;
import com.cloud.utils.db.GenericDao;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.GenericSearchBuilder;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
@Local(value=EntityManager.class)
@SuppressWarnings("unchecked")
public class EntityManagerImpl implements EntityManager, Manager {
String _name;
Cache _cache;
@Override
public <T, K extends Serializable> T findById(Class<T> entityType, K id) {
GenericDao<? extends T, K> dao = (GenericDao<? extends T, K>)GenericDaoBase.getDao(entityType);
return dao.findById(id);
}
@Override
public <T> T findByXid(Class<T> entityType, String xid) {
return null;
}
@Override
public <T> List<? extends T> list(Class<T> entityType) {
GenericDao<? extends T, ? extends Serializable> dao = GenericDaoBase.getDao(entityType);
return dao.listAll();
}
@Override
public <T> T persist(T t) {
GenericDao<T, ? extends Serializable> dao = (GenericDao<T, ? extends Serializable>)GenericDaoBase.getDao((Class<T>)t.getClass());
return dao.persist(t);
}
@Override
public <T> SearchBuilder<T> createSearchBuilder(Class<T> entityType) {
GenericDao<T, ? extends Serializable> dao = (GenericDao<T, ? extends Serializable>)GenericDaoBase.getDao(entityType);
return dao.createSearchBuilder();
}
@Override
public <T, K> GenericSearchBuilder<T, K> createGenericSearchBuilder(Class<T> entityType, Class<K> resultType) {
GenericDao<T, ? extends Serializable> dao = (GenericDao<T, ? extends Serializable>)GenericDaoBase.getDao(entityType);
return dao.createSearchBuilder((Class<K>)resultType.getClass());
}
@Override
public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
_name = name;
/*
String threadId = Long.toString(Thread.currentThread().getId());
CacheManager cm = CacheManager.create();
_cache = cm.getCache(threadId);
if (_cache == null) {
int maxElements = NumbersUtil.parseInt((String)params.get("cache.size"), 100);
int live = NumbersUtil.parseInt((String)params.get("cache.time.to.live"), 300);
int idle = NumbersUtil.parseInt((String)params.get("cache.time.to.idle"), 300);
_cache = new Cache(threadId, maxElements, false, live == -1, live == -1 ? Integer.MAX_VALUE : live, idle);
cm.addCache(_cache);
}*/
return true;
}
@Override
public boolean start() {
return true;
}
@Override
public boolean stop() {
return true;
}
@Override
public String getName() {
return _name;
}
@Override
public <T, K> List<K> search(Class<T> entityType, SearchCriteria<K> sc) {
GenericDao<T, ? extends Serializable> dao = (GenericDao<T, ? extends Serializable>)GenericDaoBase.getDao(entityType);
return dao.customSearch(sc, null);
}
@Override
public <T, K extends Serializable> void remove(Class<T> entityType, K id) {
GenericDao<T, K> dao = (GenericDao<T, K>)GenericDaoBase.getDao(entityType);
dao.remove(id);
}
}