/*

 * 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

 * particular file as subject to the "Classpath" exception as provided

 *

 * 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.

 *

 */

package sun.management.counter.perf;

import sun.management.counter.*;

import java.nio.LongBuffer;

import java.nio.ReadOnlyBufferException;

public class PerfLongArrayCounter extends AbstractCounter

       implements LongArrayCounter {

    LongBuffer lb;

    PerfLongArrayCounter(String name, Units u, Variability v,

                         int flags, int vectorLength,

                         LongBuffer lb) {

        super(name, u, v, flags, vectorLength);

        this.lb = lb;

    }

    public Object getValue() {

        return longArrayValue();

    }

    /**

     * Get a copy of the elements of the LongArrayCounter.

     */

    public long[] longArrayValue() {

        lb.position(0);

        long[] l = new long[lb.limit()];

        // copy the bytes

        lb.get(l);

        return l;

    }

    /**

     * Get the value of an element of the LongArrayCounter object.

     */

    public long longAt(int index) {

        lb.position(index);

        return lb.get();

    }

    /**

     * Serialize as a snapshot object.

     */

    protected Object writeReplace() throws java.io.ObjectStreamException {

        return new LongArrayCounterSnapshot(getName(),

                                            getUnits(),

                                            getVariability(),

                                            getFlags(),

                                            getVectorLength(),

                                            longArrayValue());

    }

    private static final long serialVersionUID = -2733617913045487126L;

}