org/objectweb/proactive/benchmarks/timit/util/SecuredHierarchicalTimer.java

/* 
 * ################################################################
 * 
 * ProActive: The Java(TM) library for Parallel, Distributed, 
 *            Concurrent computing with Security and Mobility
 * 
 * Copyright (C) 1997-2007 INRIA/University of Nice-Sophia Antipolis
 * Contact: proactive@objectweb.org
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 *  
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *  
 *  Initial developer(s):               The ProActive Team
 *                        http://www.inria.fr/oasis/ProActive/contacts.html
 *  Contributor(s): 
 * 
 * ################################################################
 */ 
package org.objectweb.proactive.benchmarks.timit.util;

public class SecuredHierarchicalTimer extends HierarchicalTimer {

    private static final long serialVersionUID = 4851461458559620436L;

    private int headCounterID = -1;

    private void checkRange(int n) {
        if (n < 0 || n >= this.getNbCounter()) {
            throw new IllegalArgumentException(
                    "Incorrect counter id. Maybe it has be set by a wrong "
                            + "Timed instance. If it is a stop, maybe you never start"
                            + "this counter.");
        }
    }

    private boolean internalIsStarted(int n) {
        return this.parent[0] == n || this.parent[1] == n
                || this.parent[2] == n;
    }

    private boolean isJustStarted(int n) {
        return this.level >= 0 && this.parent[this.level] == n;
    }

    private String getInfos(int n, int lev) {
        return "'" + this.getCounterName(n) + "' [id=" + n + ", level=" + lev
                + "]";
    }

    public void resetCounter(int n) {
        this.checkRange(n);
        super.resetCounter(n);
    }

    public void start(int n) {
        this.checkRange(n);
        if (this.internalIsStarted(n)) {
            throw new IllegalStateException("TimerCounter "
                    + this.getInfos(n, this.level + 1) + " already started !");
        }
        if (this.headCounterID == -1) {
            this.headCounterID = n;
        }
        if ((this.level + 1) == 0 && n != this.headCounterID) {
            throw new IllegalStateException(
                    "Bad counters placement: not hierarchical. TimerCounter "
                            + this.getInfos(this.headCounterID, 0)
                            + " is already the "
                            + "counter's head and "
                            + this.getInfos(n, 0)
                            + " can't be set "
                            + "as head also. Try to make a global TOTAL counter "
                            + "which include the others.");
        }
        super.start(n);
    }

    public void stop(int n) {
        this.checkRange(n);
        if (!this.isJustStarted(n)) {
            if (!this.internalIsStarted(n)) {
                throw new IllegalStateException("TimerCounter "
                        + this.getInfos(n, this.level)
                        + " must be started before being stopped !");
            } else {
                throw new IllegalStateException(
                        "TimerCounter "
                                + this.getInfos(n, this.level)
                                + " stop misplaced. The last started counter is "
                                + this.getCounterName(this.parent[this.level])
                                + " and you should "
                                + "stop this one. Maybe your start/stop are imbricated.");
            }
        } else {
            super.stop(n);
            this.parent[this.level + 1] = -1;
        }
    }

    public int readTimer(int i, int j, int k) {
        this.checkRange(i);
        this.checkRange(j);
        this.checkRange(k);
        return super.readTimer(i, j, k);
    }
}

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