/**
* JBoss, Home of Professional Open Source
* Copyright Red Hat, Inc., and individual contributors.
*
* 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 org.jboss.aerogear.simplepush.vertx;
import java.util.HashSet;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.ConcurrentMap;
import org.vertx.java.core.Handler;
import org.vertx.java.core.logging.Logger;
import org.vertx.java.platform.Verticle;
/**
* Performs the removal of inactive UserAgents.
*/
public class UserAgentReaper extends Verticle {
@Override
public void start() {
final Logger logger = container.logger();
final Long reaperTimeout = container.config().getLong("userAgentReaperTimeout", 300000);
logger.info("Started UserAgent Reaper with timeout of [" + reaperTimeout + "]");
final ConcurrentMap<String, Long> lastAccessedMap = vertx.sharedData().getMap(VertxSimplePushServer.LAST_ACCESSED_MAP);
final ConcurrentMap<String, String> writeHandlerMap = vertx.sharedData().getMap(VertxSimplePushServer.WRITE_HANDLER_MAP);
vertx.setPeriodic(reaperTimeout, new Handler<Long>() {
@Override
public void handle(final Long timerId) {
logger.info("UserAgentReaper reaping....");
final Set<String> markedForRemoval = new HashSet<String>();
final Set<Entry<String, Long>> entrySet = lastAccessedMap.entrySet();
for (Entry<String, Long> entry : entrySet) {
final String uaid = entry.getKey();
final Long timestamp = entry.getValue();
final long now = System.currentTimeMillis();
if (timestamp + reaperTimeout < now) {
markedForRemoval.add(uaid);
vertx.eventBus().send(VertxSimplePushServer.USER_AGENT_REMOVER, uaid);
}
}
for (String uaid : markedForRemoval) {
lastAccessedMap.remove(uaid);
writeHandlerMap.remove(uaid);
}
}
});
}
}