/*
* 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.usergrid.persistence.collection.uniquevalues;
import akka.actor.ActorRef;
import akka.actor.Props;
import akka.actor.UntypedActor;
import akka.routing.ConsistentHashingRouter;
import akka.routing.FromConfig;
import com.google.inject.Inject;
import com.google.inject.Injector;
import org.apache.commons.lang.RandomStringUtils;
import org.apache.usergrid.persistence.actorsystem.GuiceActorProducer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Uses a consistent hash to route Unique Value requests to UniqueValueActors.
*/
public class UniqueValuesRouter extends UntypedActor {
private static final Logger logger = LoggerFactory.getLogger( UniqueValueActor.class );
private final ActorRef router;
@Inject
public UniqueValuesRouter() {
router = getContext().actorOf( FromConfig.getInstance().props(
Props.create( GuiceActorProducer.class, UniqueValueActor.class)
.withDispatcher("akka.blocking-io-dispatcher")), "router");
}
@Override
public void onReceive(Object message) {
if ( message instanceof UniqueValueActor.Request) {
UniqueValueActor.Request request = (UniqueValueActor.Request)message;
ConsistentHashingRouter.ConsistentHashableEnvelope envelope =
new ConsistentHashingRouter.ConsistentHashableEnvelope( message, request.getConsistentHashKey() );
router.tell( envelope, getSender());
} else {
unhandled(message);
}
}
}