// 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.guru;

import javax.ejb.Local;

import org.apache.log4j.Logger;

import com.cloud.dc.DataCenter;
import com.cloud.deploy.DeployDestination;
import com.cloud.deploy.DeploymentPlan;
import com.cloud.event.EventTypes;
import com.cloud.event.EventUtils;
import com.cloud.event.EventVO;
import com.cloud.exception.InsufficientAddressCapacityException;
import com.cloud.exception.InsufficientVirtualNetworkCapcityException;
import com.cloud.network.Network;
import com.cloud.network.NetworkManager;
import com.cloud.network.NetworkVO;
import com.cloud.network.ovs.OvsTunnelManager;
import com.cloud.offering.NetworkOffering;
import com.cloud.user.Account;
import com.cloud.user.UserContext;
import com.cloud.utils.component.Inject;
import com.cloud.vm.Nic.ReservationStrategy;
import com.cloud.vm.NicProfile;
import com.cloud.vm.ReservationContext;
import com.cloud.vm.VirtualMachine;
import com.cloud.vm.VirtualMachineProfile;
import com.cloud.network.Networks.BroadcastDomainType;
import com.cloud.network.Network.State;

@Local(value=NetworkGuru.class)
public class OvsGuestNetworkGuru extends GuestNetworkGuru {
	private static final Logger s_logger = Logger.getLogger(OvsGuestNetworkGuru.class);
	
	@Inject NetworkManager _externalNetworkManager;
	@Inject OvsTunnelManager _ovsTunnelMgr;
	
	@Override
    public Network design(NetworkOffering offering, DeploymentPlan plan, Network userSpecified, Account owner) {
      
		if (!_ovsTunnelMgr.isOvsTunnelEnabled()) {
			return null;
		}
		
        NetworkVO config = (NetworkVO) super.design(offering, plan, userSpecified, owner); 
        if (config == null) {
        	return null;
        }
        
        config.setBroadcastDomainType(BroadcastDomainType.Vswitch);
        
        return config;
	}
	
    protected void allocateVnet(Network network, NetworkVO implemented, long dcId,
    		long physicalNetworkId, String reservationId) throws InsufficientVirtualNetworkCapcityException {
        if (network.getBroadcastUri() == null) {
            String vnet = _dcDao.allocateVnet(dcId, physicalNetworkId, network.getAccountId(), reservationId);
            if (vnet == null) {
                throw new InsufficientVirtualNetworkCapcityException("Unable to allocate vnet as a part of network " + network + " implement ", DataCenter.class, dcId);
            }
            implemented.setBroadcastUri(BroadcastDomainType.Vswitch.toUri(vnet));
            EventUtils.saveEvent(UserContext.current().getCallerUserId(), network.getAccountId(), EventVO.LEVEL_INFO, EventTypes.EVENT_ZONE_VLAN_ASSIGN, "Assigned Zone Vlan: "+vnet+ " Network Id: "+network.getId(), 0);
        } else {
            implemented.setBroadcastUri(network.getBroadcastUri());
        }
    }
	
	@Override
	public Network implement(Network config, NetworkOffering offering, DeployDestination dest, ReservationContext context) throws InsufficientVirtualNetworkCapcityException {
		 assert (config.getState() == State.Implementing) : "Why are we implementing " + config;
		 if (!_ovsTunnelMgr.isOvsTunnelEnabled()) {
			 return null;
		 }
		 NetworkVO implemented = (NetworkVO)super.implement(config, offering, dest, context);		 
         return implemented;
	}
	
}