/*******************************************************************************
* ALMA - Atacama Large Millimeter Array
* Copyright (c) ESO - European Southern Observatory, 2011
* (in the framework of the ALMA collaboration).
* All rights reserved.
*
* 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 (at your option) 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
*******************************************************************************/
package alma.acs.nsstatistics;
/** This class encapsulates the list of slowest consumers in a particular channel returned
* by the TAO M&C Extensions to the Notify Service; it is only relevant when the size of the queue
* in the same channel is of non-zero length.
*
* It gets created by ChannelData
*
* @author jschwarz
*
*/
public class SlowestConsumers extends MCStatistics {
private final ChannelQueueSize queueSizeStats;
public SlowestConsumers(ChannelData parent, ChannelQueueSize queueSizeStats) {
super(parent, "SlowestConsumers");
this.queueSizeStats = queueSizeStats;
}
@Override
public String getStatistics() {
if (queueSizeStats.getQueueSize() < 1) {
return null; // return "";
}
children.clear();
String sc[] = getMcData().list();
for (String s : sc) {
children.add(new ChannelParticipantName(s, this));
}
return "Slowest consumers: " + children.size();
}
}