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

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

	private static final String TYPE_TCP = "tcp";

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

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

		Tcp tcp = sigar.getTcp();

		long activeOpens = tcp.getActiveOpens();
		long passiveOpens = tcp.getPassiveOpens();
		long attemptFails = tcp.getAttemptFails();
		long estabResets = tcp.getEstabResets();
		long currEstab = tcp.getCurrEstab();
		long inSegs = tcp.getInSegs();
		long outSegs = tcp.getOutSegs();
		long retransSegs = tcp.getRetransSegs();
		long inErrs = tcp.getInErrs();
		long outRsts = tcp.getOutRsts();

		sb.append(TYPE_TCP);
		sb.append(separator);
		sb.append(activeOpens); // active connections openings
		sb.append(separator);
		sb.append(passiveOpens); // passive connection openings
		sb.append(separator);
		sb.append(attemptFails); // failed connection attempts
		sb.append(separator);
		sb.append(estabResets); // connection resets received
		sb.append(separator);
		sb.append(currEstab);// connections established
		sb.append(separator);
		sb.append(inSegs); // segments received
		sb.append(separator);
		sb.append(outSegs); // segments send out
		sb.append(separator);
		sb.append(retransSegs); // segments retransmitted
		sb.append(separator);
		sb.append(inErrs); // bad segments received
		sb.append(separator);
		sb.append(outRsts); // resets sent

		return sb.toString();
	}
}