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// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with 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,
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package org.apache.cloudstack.api.command.admin.host;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import org.apache.cloudstack.api.APICommand;
import org.apache.cloudstack.api.ApiConstants;
import org.apache.cloudstack.api.BaseListCmd;
import org.apache.cloudstack.api.Parameter;
import org.apache.cloudstack.api.response.HostForMigrationResponse;
import org.apache.cloudstack.api.response.ListResponse;
import org.apache.cloudstack.api.response.UserVmResponse;
import com.cloud.host.Host;
import com.cloud.utils.Pair;
import com.cloud.utils.Ternary;
@APICommand(name = "findHostsForMigration", description = "Find hosts suitable for migrating a virtual machine.", responseObject = HostForMigrationResponse.class,
requestHasSensitiveInfo = false, responseHasSensitiveInfo = false)
public class FindHostsForMigrationCmd extends BaseListCmd {
public static final Logger s_logger = Logger.getLogger(FindHostsForMigrationCmd.class.getName());
private static final String s_name = "findhostsformigrationresponse";
/////////////////////////////////////////////////////
//////////////// API parameters /////////////////////
/////////////////////////////////////////////////////
@Parameter(name = ApiConstants.VIRTUAL_MACHINE_ID,
type = CommandType.UUID,
entityType = UserVmResponse.class,
required = true,
description = "find hosts to which this VM can be migrated and flag the hosts with enough " + "CPU/RAM to host the VM")
private Long virtualMachineId;
/////////////////////////////////////////////////////
/////////////////// Accessors ///////////////////////
/////////////////////////////////////////////////////
public Long getVirtualMachineId() {
return virtualMachineId;
}
/////////////////////////////////////////////////////
/////////////// API Implementation///////////////////
/////////////////////////////////////////////////////
@Override
public String getCommandName() {
return s_name;
}
@Override
public void execute() {
ListResponse<HostForMigrationResponse> response = null;
Pair<List<? extends Host>, Integer> result;
Map<Host, Boolean> hostsRequiringStorageMotion;
Ternary<Pair<List<? extends Host>, Integer>, List<? extends Host>, Map<Host, Boolean>> hostsForMigration =
_mgr.listHostsForMigrationOfVM(getVirtualMachineId(), this.getStartIndex(), this.getPageSizeVal());
result = hostsForMigration.first();
List<? extends Host> hostsWithCapacity = hostsForMigration.second();
hostsRequiringStorageMotion = hostsForMigration.third();
response = new ListResponse<HostForMigrationResponse>();
List<HostForMigrationResponse> hostResponses = new ArrayList<HostForMigrationResponse>();
for (Host host : result.first()) {
HostForMigrationResponse hostResponse = _responseGenerator.createHostForMigrationResponse(host);
Boolean suitableForMigration = false;
if (hostsWithCapacity.contains(host)) {
suitableForMigration = true;
}
hostResponse.setSuitableForMigration(suitableForMigration);
Boolean requiresStorageMotion = hostsRequiringStorageMotion.get(host);
if (requiresStorageMotion != null && requiresStorageMotion) {
hostResponse.setRequiresStorageMotion(true);
} else {
hostResponse.setRequiresStorageMotion(false);
}
hostResponse.setObjectName("host");
hostResponses.add(hostResponse);
}
response.setResponses(hostResponses, result.second());
response.setResponseName(getCommandName());
this.setResponseObject(response);
}
}