// 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.api.commands;

import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;

import com.cloud.api.ApiConstants;
import com.cloud.api.BaseListCmd;
import com.cloud.api.Implementation;
import com.cloud.api.Parameter;
import com.cloud.api.response.ListResponse;
import com.cloud.api.response.ServiceResponse;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.network.Network;
import com.cloud.network.Network.Service;
import com.cloud.user.Account;


@Implementation(description="Lists all network services provided by CloudStack or for the given Provider.", responseObject=ServiceResponse.class, since="3.0.0")
public class ListSupportedNetworkServicesCmd extends BaseListCmd {
    public static final Logger s_logger = Logger.getLogger(ListSupportedNetworkServicesCmd.class.getName());
    private static final String _name = "listsupportednetworkservicesresponse";
    
    @Parameter(name=ApiConstants.PROVIDER, type=CommandType.STRING, description="network service provider name")
    private String providerName;
    
    @Parameter(name=ApiConstants.SERVICE, type=CommandType.STRING, description="network service name to list providers and capabilities of")
    private String serviceName;

    /////////////////////////////////////////////////////
    //////////////// API parameters /////////////////////
    /////////////////////////////////////////////////////
    
    /////////////////////////////////////////////////////
    /////////////////// Accessors ///////////////////////
    /////////////////////////////////////////////////////
    

    public void setProviderName(String providerName) {
        this.providerName = providerName;
    }

    public String getProviderName() {
        return providerName;
    }


    public String getServiceName() {
        return serviceName;
    }

    /////////////////////////////////////////////////////
    /////////////// API Implementation///////////////////
    /////////////////////////////////////////////////////
    @Override
    public String getCommandName() {
        return _name;
    }

    @Override
    public long getEntityOwnerId() {
        return Account.ACCOUNT_ID_SYSTEM;
    }
    
    @Override
    public void execute(){
        List<? extends Network.Service> services; 
        if(getServiceName() != null){
            Network.Service service = null;
            if(serviceName != null){
                service = Network.Service.getService(serviceName);
                if(service == null){
                    throw new InvalidParameterValueException("Invalid Network Service=" + serviceName);
                }
            }
            List<Network.Service> serviceList = new ArrayList<Network.Service>();
            serviceList.add(service);
            services = serviceList;
        }else{
            services = _networkService.listNetworkServices(getProviderName());
        }
        
        ListResponse<ServiceResponse> response = new ListResponse<ServiceResponse>();
        List<ServiceResponse> servicesResponses = new ArrayList<ServiceResponse>();
        for (Network.Service service : services) {
        	//skip gateway service
        	if (service == Service.Gateway) {
        		continue;
        	}
            ServiceResponse serviceResponse = _responseGenerator.createNetworkServiceResponse(service);
            servicesResponses.add(serviceResponse);
        }

        response.setResponses(servicesResponses);
        response.setResponseName(getCommandName());
        this.setResponseObject(response);
    }
}