com.mgmtp.perfload.perfmon.cmd.PerfMonCpu Maven / Gradle / Ivy

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/*
 * Copyright (c) 2014 mgm technology partners GmbH
 *
 * Licensed 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 "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.
 */
package com.mgmtp.perfload.perfmon.cmd;

import static com.mgmtp.perfload.perfmon.util.PerfMonUtils.appendLineBreak;
import static com.mgmtp.perfload.perfmon.util.PerfMonUtils.appendPercent;

import org.apache.commons.lang.text.StrBuilder;
import org.hyperic.sigar.CpuPerc;
import org.hyperic.sigar.SigarException;
import org.hyperic.sigar.SigarProxy;

/**
 * @author rnaegele
 */
public class PerfMonCpu extends BasePerfMonCommand {

	private static final String TYPE_CPU_X = "cpu_X";
	private static final String TYPE_CPU = "cpu_";

	public PerfMonCpu(final String separator) {
		super(separator);
	}

	@Override
	public String executeCommand(final SigarProxy sigar) throws SigarException {
		StrBuilder sb = new StrBuilder(200);

		CpuPerc[] cpus = sigar.getCpuPercList();
		CpuPerc cpuAll = sigar.getCpuPerc();

		sb.append(TYPE_CPU_X);
		sb.append(separator);
		writeCpu(sb, cpuAll);

		if (cpus.length > 1) { // more than one CPU
			appendLineBreak(sb);
			for (int i = 0; i < cpus.length; i++) {
				appendLineBreak(sb, i);
				sb.append(TYPE_CPU + i);
				sb.append(separator);
				writeCpu(sb, cpus[i]);
			}
		}

		return sb.toString();
	}

	private void writeCpu(final StrBuilder sb, final CpuPerc cpuPerc) {
		appendPercent(sb, cpuPerc.getCombined());
		sb.append(separator);
		appendPercent(sb, cpuPerc.getUser());
		sb.append(separator);
		appendPercent(sb, cpuPerc.getNice());
		sb.append(separator);
		appendPercent(sb, cpuPerc.getSys());
		sb.append(separator);
		appendPercent(sb, cpuPerc.getWait());
		sb.append(separator);
		appendPercent(sb, cpuPerc.getIdle());
	}
}