/*
* Copyright 2012 Research Studios Austria Forschungsges.m.b.H.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package won.bot.framework.eventbot.action.impl.maintenance;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import won.bot.framework.eventbot.EventListenerContext;
import won.bot.framework.eventbot.action.BaseEventBotAction;
import won.bot.framework.eventbot.bus.EventBus;
import won.bot.framework.eventbot.bus.impl.EventBusStatistics;
import won.bot.framework.eventbot.event.Event;
import won.bot.framework.eventbot.listener.EventListener;
/*
* Collects the EventBusStatistics and logs them.
*/
public class StatisticsLoggingAction extends BaseEventBotAction
{
private final Logger logger = LoggerFactory.getLogger(getClass());
public StatisticsLoggingAction(EventListenerContext eventListenerContext) {
super(eventListenerContext);
}
@Override
protected void doRun(Event event, EventListener executingListener) throws Exception {
EventBus bus = getEventListenerContext().getEventBus();
EventBusStatistics statistics = bus.generateEventBusStatistics();
StringBuilder sb = new StringBuilder();
sb.append("\nEvent bus statistics: \n")
.append("number of listeners: ").append(statistics.getListenerCount()).append("\n")
.append("number of listeners per listener class:\n");
statistics.getListenerCountPerListenerClass().entrySet().stream().sorted((e1, e2) -> e1.getKey().getName().compareTo(e2.getKey().getName())).forEach(e -> sb.append(e.getKey().getName()).append(": ").append(e.getValue()).append("\n"));
sb.append("number of listeners per event class:\n");
statistics.getListenerCountPerEvent().entrySet().stream().sorted((e1, e2) -> e1.getKey().getName().compareTo(e2.getKey().getName())).forEach(e -> sb.append(e.getKey()).append(": ").append(e.getValue()).append("\n"));
logger.info(sb.toString());
}
}