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/*******************************************************************************
* Product of NIST/ITL Advanced Networking Technologies Division (ANTD).        *
*******************************************************************************/

package tools.tracesviewer;

import java.util.*;

/**
*This class stores a sorted list messages for logging.
*
*@version 1.2
*
*@author M. Ranganathan
*@author Marc Bednarek
*
*
*/

public class MessageLogList extends TreeSet {
    protected String description;
    protected static long startTime;

    static {
        startTime = -1;
    }

    /** Constructor.
    *@param comp comparator for sorting the logs
    */
    public MessageLogList(Comparator comp) {
        super(comp);
    }

    /** set a descriptive string for this log (for id purposes).
     *@param description is the decriptive string to add.
     */
    public void addDescription(String description) {
        this.description = description;
    }

    /** Constructor given callId and a comparator.
    *@param callId is the call id for which to store the log.
    *@param comp is the comparator to sort the log records.
    */

    public MessageLogList(String callId, Comparator comp) {
        super(comp);
    }

    /** Add a comparable object to the messgageLog
    *@param obj is the comparable object to add to the message log.
    */
    public synchronized boolean add(Object obj) {
        TracesMessage log = (TracesMessage) obj;
        long ts = Long.parseLong(log.getTime());
        if (ts < startTime || startTime < 0)
            startTime = ts;
        return super.add(obj);
    }

}