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jPOS is an ISO-8583 based financial transaction library/framework that can be customized and extended in order to implement financial interchanges.

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/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package org.jpos.q2.cli;

import org.jpos.q2.CLICommand;
import org.jpos.q2.CLIContext;

public class MEM implements CLICommand
{
    public void exec(CLIContext cli, String[] args) throws Exception
    {
        if (args.length > 1 && "--gc".equals(args[1]))
        {
            System.gc();
        }
        Runtime r = Runtime.getRuntime();
        StringBuilder sb = new StringBuilder();
        sb.append("total=");
        sb.append(r.totalMemory());
        sb.append(" free=");
        sb.append(r.freeMemory());
        sb.append(" in-use=");
        sb.append(r.totalMemory() - r.freeMemory());
        cli.println(sb.toString());
    }
}