| /* |
| * Copyright (c) 2003, 2013, 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.management.counter.perf; |
| |
| import java.io.UnsupportedEncodingException; |
| |
| /** |
| * A typesafe enumeration for the data types supported for |
| * performance data. |
| * |
| * <p> The enumeration values for this typesafe enumeration must be |
| * kept in synchronization with the PerfDataType enum in the |
| * globalsDefinitions.hpp file in the HotSpot source base.</p> |
| * |
| * @author Brian Doherty |
| */ |
| class PerfDataType { |
| |
| private final String name; |
| private final byte value; |
| private final int size; |
| |
| public static final PerfDataType BOOLEAN = new PerfDataType("boolean", "Z", 1); |
| public static final PerfDataType CHAR = new PerfDataType("char", "C", 1); |
| public static final PerfDataType FLOAT = new PerfDataType("float", "F", 8); |
| public static final PerfDataType DOUBLE = new PerfDataType("double", "D", 8); |
| public static final PerfDataType BYTE = new PerfDataType("byte", "B", 1); |
| public static final PerfDataType SHORT = new PerfDataType("short", "S", 2); |
| public static final PerfDataType INT = new PerfDataType("int", "I", 4); |
| public static final PerfDataType LONG = new PerfDataType("long", "J", 8); |
| public static final PerfDataType ILLEGAL = new PerfDataType("illegal", "X", 0); |
| |
| private static PerfDataType basicTypes[] = { |
| LONG, BYTE, BOOLEAN, CHAR, FLOAT, DOUBLE, SHORT, INT |
| }; |
| |
| public String toString() { |
| return name; |
| } |
| |
| public byte byteValue() { |
| return value; |
| } |
| |
| public int size() { |
| return size; |
| } |
| |
| /** |
| * Maps an integer PerfDataType value to its corresponding PerfDataType |
| * object. |
| * |
| * @param i an integer representation of a PerfDataType |
| * @return The PerfDataType object for <code>i</code> |
| */ |
| public static PerfDataType toPerfDataType(byte type) { |
| for (int j = 0; j < basicTypes.length; j++) { |
| if (basicTypes[j].byteValue() == type) { |
| return (basicTypes[j]); |
| } |
| } |
| return ILLEGAL; |
| } |
| |
| private PerfDataType(String name, String c, int size) { |
| this.name = name; |
| this.size = size; |
| try { |
| byte[] b = c.getBytes("UTF-8"); |
| this.value = b[0]; |
| } catch (UnsupportedEncodingException e) { |
| // ignore, "UTF-8" is always a known encoding |
| throw new InternalError("Unknown encoding", e); |
| } |
| } |
| } |