/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.ambari.logsearch.web.listener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
public class LogSearchSessionListener implements HttpSessionListener {
private Logger LOG = LoggerFactory.getLogger(LogSearchSessionListener.class);
private int numberOfSessions = 0;
@Override
public void sessionCreated(HttpSessionEvent event) {
synchronized (this) {
numberOfSessions++;
}
LOG.debug(String.format("New session is created (Id: %s). Number of sessions: %d", event.getSession().getId(), numberOfSessions));
}
@Override
public void sessionDestroyed(HttpSessionEvent event) {
synchronized (this) {
numberOfSessions--;
}
LOG.debug(String.format("Session destroyed (Id: %s). Number of sessions: %d", event.getSession().getId(), numberOfSessions));
}
}