// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License.  Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
// 
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.network.dao;

import java.util.List;

import com.cloud.utils.db.Attribute;
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;
import com.cloud.utils.db.SearchCriteria.Op;
import com.cloud.utils.db.UpdateBuilder;


public class NetworkOpDaoImpl extends GenericDaoBase<NetworkOpVO, Long> implements GenericDao<NetworkOpVO, Long> {
    protected final SearchBuilder<NetworkOpVO> AllFieldsSearch;
    protected final GenericSearchBuilder<NetworkOpVO, Integer> ActiveNicsSearch;
    protected final GenericSearchBuilder<NetworkOpVO, Long> GarbageCollectSearch;
    protected final Attribute _activeNicsAttribute;
    
    protected NetworkOpDaoImpl() {
        super();
        
        ActiveNicsSearch = createSearchBuilder(Integer.class);
        ActiveNicsSearch.selectField(ActiveNicsSearch.entity().getActiveNicsCount());
        ActiveNicsSearch.and("network", ActiveNicsSearch.entity().getId(), Op.EQ);
        ActiveNicsSearch.done();
        
        AllFieldsSearch = createSearchBuilder();
        AllFieldsSearch.and("network", AllFieldsSearch.entity().getId(), Op.EQ);
        AllFieldsSearch.done();
        
        GarbageCollectSearch = createSearchBuilder(Long.class);
        GarbageCollectSearch.selectField(GarbageCollectSearch.entity().getId());
        GarbageCollectSearch.and("activenics", GarbageCollectSearch.entity().getActiveNicsCount(), Op.EQ);
        GarbageCollectSearch.and("gc", GarbageCollectSearch.entity().isGarbageCollected(), Op.EQ);
        GarbageCollectSearch.and("check", GarbageCollectSearch.entity().isCheckForGc(), Op.EQ);
        GarbageCollectSearch.done();
        
        _activeNicsAttribute = _allAttributes.get("activeNicsCount");
        assert _activeNicsAttribute != null : "Cannot find activeNicsCount";
    }
    
    public List<Long> getNetworksToGarbageCollect() {
        SearchCriteria<Long> sc = GarbageCollectSearch.create();
        sc.setParameters("activenics", 0);
        sc.setParameters("gc", true);
        sc.setParameters("check", true);
        
        return customSearch(sc, null);
    }
    
    public int getActiveNics(long networkId) {
        SearchCriteria<Integer> sc = ActiveNicsSearch.create();
        sc.setParameters("network", networkId);
        
        return customSearch(sc, null).get(0);
    }
    
    public void changeActiveNicsBy(long networkId, int count) {
        
        SearchCriteria<NetworkOpVO> sc = AllFieldsSearch.create();
        sc.setParameters("network", networkId);

        NetworkOpVO vo = createForUpdate();
        UpdateBuilder builder = getUpdateBuilder(vo);
        builder.incr(_activeNicsAttribute, count);
        
        update(builder, sc, null);
    }
    
    public void setCheckForGc(long networkId) {
        NetworkOpVO vo = createForUpdate();
        vo.setCheckForGc(true);
        update(networkId, vo);
    }
    
    public void clearCheckForGc(long networkId) {
        NetworkOpVO vo = createForUpdate();
        vo.setCheckForGc(false);
        update(networkId, vo);
    }
}