| /* |
| * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.jvmstat.perfdata.monitor; |
| |
| import sun.jvmstat.monitor.*; |
| import java.nio.LongBuffer; |
| |
| /** |
| * Class for monitoring a PerfData Long instrument. |
| * |
| * @author Brian Doherty |
| * @since 1.5 |
| */ |
| public class PerfLongMonitor extends AbstractMonitor implements LongMonitor { |
| |
| /** |
| * The buffer containing the data for the long instrument. |
| */ |
| LongBuffer lb; |
| |
| /** |
| * Constructor to create a LongMonitor object for the long instrument |
| * represented by the data in the given buffer. |
| * |
| * @param name the name of the long instrument |
| * @param u the units of measure attribute |
| * @param v the variability attribute |
| * @param supported support level indicator |
| * @param lb the buffer containing the long instrument data. |
| */ |
| public PerfLongMonitor(String name, Units u, Variability v, |
| boolean supported, LongBuffer lb) { |
| super(name, u, v, supported); |
| this.lb = lb; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * The object returned contains a Long object containing the |
| * current value of the LongInstrument. |
| * |
| * @return Object - the current value of the the LongInstrument. The |
| * return type is guaranteed to be of type Long. |
| */ |
| public Object getValue() { |
| return new Long(lb.get(0)); |
| } |
| |
| /** |
| * Return the current value of the LongInstrument as an long. |
| * |
| * @return long - the current value of the LongInstrument |
| */ |
| public long longValue() { |
| return lb.get(0); |
| } |
| } |