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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package sun.management.counter.perf;

import java.io.UnsupportedEncodingException;

A typesafe enumeration for the data types supported for
performance data.
 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.
Author:
 Brian Doherty/**
 * 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.
Params:
i –  an integer representation of a PerfDataType
Returns:
    The PerfDataType object for i/**
     * 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);
        }
    }
}