1/* 2 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.management.counter.perf; 27 28import sun.management.counter.*; 29 30import java.nio.LongBuffer; 31import java.nio.ReadOnlyBufferException; 32 33public class PerfLongArrayCounter extends AbstractCounter 34 implements LongArrayCounter { 35 36 LongBuffer lb; 37 38 PerfLongArrayCounter(String name, Units u, Variability v, 39 int flags, int vectorLength, 40 LongBuffer lb) { 41 42 super(name, u, v, flags, vectorLength); 43 this.lb = lb; 44 } 45 46 public Object getValue() { 47 return longArrayValue(); 48 } 49 50 /** 51 * Get a copy of the elements of the LongArrayCounter. 52 */ 53 public long[] longArrayValue() { 54 55 lb.position(0); 56 long[] l = new long[lb.limit()]; 57 58 // copy the bytes 59 lb.get(l); 60 61 return l; 62 } 63 64 /** 65 * Get the value of an element of the LongArrayCounter object. 66 */ 67 public long longAt(int index) { 68 lb.position(index); 69 return lb.get(); 70 } 71 72 /** 73 * Serialize as a snapshot object. 74 */ 75 protected Object writeReplace() throws java.io.ObjectStreamException { 76 return new LongArrayCounterSnapshot(getName(), 77 getUnits(), 78 getVariability(), 79 getFlags(), 80 getVectorLength(), 81 longArrayValue()); 82 } 83 84 private static final long serialVersionUID = -2733617913045487126L; 85} 86