// 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 org.apache.log4j.Logger;

import com.cloud.api.ApiConstants;
import com.cloud.api.BaseAsyncCmd;
import com.cloud.api.BaseCmd;
import com.cloud.api.IdentityMapper;
import com.cloud.api.Implementation;
import com.cloud.api.Parameter;
import com.cloud.api.ServerApiException;
import com.cloud.api.response.UserVmResponse;
import com.cloud.event.EventTypes;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.uservm.UserVm;

@Implementation(description="Detaches any ISO file (if any) currently attached to a virtual machine.", responseObject=UserVmResponse.class)
public class DetachIsoCmd extends BaseAsyncCmd {
    public static final Logger s_logger = Logger.getLogger(DetachIsoCmd.class.getName());

    private static final String s_name = "detachisoresponse";

    /////////////////////////////////////////////////////
    //////////////// API parameters /////////////////////
    /////////////////////////////////////////////////////

    @IdentityMapper(entityTableName="vm_instance")
    @Parameter(name=ApiConstants.VIRTUAL_MACHINE_ID, type=CommandType.LONG, required=true, description="The ID of the virtual machine")
    private Long virtualMachineId;

    /////////////////////////////////////////////////////
    /////////////////// Accessors ///////////////////////
    /////////////////////////////////////////////////////

    public Long getVirtualMachineId() {
        return virtualMachineId;
    }

    /////////////////////////////////////////////////////
    /////////////// API Implementation///////////////////
    /////////////////////////////////////////////////////

    @Override
    public String getCommandName() {
        return s_name;
    }

    @Override
    public long getEntityOwnerId() {
        UserVm vm = _entityMgr.findById(UserVm.class, getVirtualMachineId());
        if (vm != null) {
            return vm.getAccountId();
        } else {
            throw new InvalidParameterValueException("Unable to find vm by id " + getVirtualMachineId());
        }  
    }

    @Override
    public String getEventType() {
        return EventTypes.EVENT_ISO_DETACH;
    }

    @Override
    public String getEventDescription() {
        return  "detaching ISO from vm: " + getVirtualMachineId();
    }
	
    @Override
    public void execute(){
        boolean result = _templateService.detachIso(virtualMachineId);
        if (result) {
            UserVm userVm = _entityMgr.findById(UserVm.class, virtualMachineId);         
            UserVmResponse response = _responseGenerator.createUserVmResponse("virtualmachine", userVm).get(0);            
            response.setResponseName(DeployVMCmd.getResultObjectName());           
            this.setResponseObject(response);
        } else {
            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to detach iso");
        }
    }
}