cloudstack/api/src/com/cloud/api/commands/MigrateVMCmd.java

130 lines
4.9 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.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.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.ConcurrentOperationException;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.exception.ManagementServerException;
import com.cloud.exception.ResourceUnavailableException;
import com.cloud.host.Host;
import com.cloud.user.Account;
import com.cloud.uservm.UserVm;
@Implementation(description="Attempts Migration of a virtual machine to the host specified.", responseObject=UserVmResponse.class)
public class MigrateVMCmd extends BaseAsyncCmd {
public static final Logger s_logger = Logger.getLogger(MigrateVMCmd.class.getName());
private static final String s_name = "migratevirtualmachineresponse";
/////////////////////////////////////////////////////
//////////////// API parameters /////////////////////
/////////////////////////////////////////////////////
@Parameter(name=ApiConstants.HOST_ID, type=CommandType.LONG, required=true, description="destination Host ID to migrate VM to")
private Long hostId;
@Parameter(name=ApiConstants.VIRTUAL_MACHINE_ID, type=CommandType.LONG, required=true, description="the ID of the virtual machine")
private Long virtualMachineId;
/////////////////////////////////////////////////////
/////////////////// Accessors ///////////////////////
/////////////////////////////////////////////////////
public Long getHostId() {
return hostId;
}
public Long getVirtualMachineId() {
return virtualMachineId;
}
/////////////////////////////////////////////////////
/////////////// API Implementation///////////////////
/////////////////////////////////////////////////////
@Override
public String getCommandName() {
return s_name;
}
@Override
public long getEntityOwnerId() {
UserVm userVm = _entityMgr.findById(UserVm.class, getVirtualMachineId());
if (userVm != null) {
return userVm.getAccountId();
}
return Account.ACCOUNT_ID_SYSTEM; // no account info given, parent this command to SYSTEM so ERROR events are tracked
}
@Override
public String getEventType() {
return EventTypes.EVENT_VM_MIGRATE;
}
@Override
public String getEventDescription() {
return "Attempting to migrate VM: " + getVirtualMachineId() + " to host: "+ getHostId();
}
@Override
public void execute(){
UserVm userVm = _userVmService.getUserVm(getVirtualMachineId());
if (userVm == null) {
throw new InvalidParameterValueException("Unable to find the VM by id=" + getVirtualMachineId());
}
Host destinationHost = _resourceService.getHost(getHostId());
if (destinationHost == null) {
throw new InvalidParameterValueException("Unable to find the host to migrate the VM, host id=" + getHostId());
}
try{
UserVm migratedVm = _userVmService.migrateVirtualMachine(userVm, destinationHost);
if (migratedVm != null) {
UserVmResponse response = _responseGenerator.createUserVmResponse(migratedVm);
response.setResponseName(getCommandName());
this.setResponseObject(response);
} else {
throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to migrate vm");
}
} catch (ResourceUnavailableException ex) {
s_logger.warn("Exception: ", ex);
throw new ServerApiException(BaseCmd.RESOURCE_UNAVAILABLE_ERROR, ex.getMessage());
} catch (ConcurrentOperationException e) {
s_logger.warn("Exception: ", e);
throw new ServerApiException(BaseCmd.INTERNAL_ERROR, e.getMessage());
} catch (ManagementServerException e) {
s_logger.warn("Exception: ", e);
throw new ServerApiException(BaseCmd.INTERNAL_ERROR, e.getMessage());
}
}
}