//
// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// 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,
// software distributed under the License is distributed on an
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// KIND, either express or implied. See the License for the
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package com.cloud.hypervisor.kvm.resource.wrapper;
import com.cloud.agent.api.Answer;
import com.cloud.agent.api.GetHostStatsAnswer;
import com.cloud.agent.api.GetHostStatsCommand;
import com.cloud.agent.api.HostStatsEntry;
import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource;
import com.cloud.resource.CommandWrapper;
import com.cloud.resource.ResourceWrapper;
import com.cloud.utils.Pair;
import org.apache.cloudstack.utils.linux.CPUStat;
import org.apache.cloudstack.utils.linux.MemStat;
import org.apache.log4j.Logger;
@ResourceWrapper(handles = GetHostStatsCommand.class)
public final class LibvirtGetHostStatsCommandWrapper extends CommandWrapper<GetHostStatsCommand, Answer, LibvirtComputingResource> {
private static final Logger s_logger = Logger.getLogger(LibvirtGetHostStatsCommandWrapper.class);
@Override
public Answer execute(final GetHostStatsCommand command, final LibvirtComputingResource libvirtComputingResource) {
CPUStat cpuStat = libvirtComputingResource.getCPUStat();
MemStat memStat = libvirtComputingResource.getMemStat();
final double cpuUtil = cpuStat.getCpuUsedPercent();
memStat.refresh();
double totMem = memStat.getTotal();
double freeMem = memStat.getAvailable();
final Pair<Double, Double> nicStats = libvirtComputingResource.getNicStats(libvirtComputingResource.getPublicBridgeName());
final HostStatsEntry hostStats = new HostStatsEntry(command.getHostId(), cpuUtil, nicStats.first() / 1024, nicStats.second() / 1024, "host", totMem, freeMem, 0, 0);
return new GetHostStatsAnswer(command, hostStats);
}
}