PromiseActorRefPropertyExtractor.java

/**
 * Copyright (c) 2009-2011 VMware, Inc. All Rights Reserved.
 *
 * 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 com.springsource.insight.plugin.akka.actorref;

import java.util.Collections;
import java.util.Map;

import akka.actor.ActorRef;
import akka.pattern.PromiseActorRef;

class PromiseActorRefPropertyExtractor implements ActorRefPropertyExtractor {

    public static final PromiseActorRefPropertyExtractor INSTANCE = new PromiseActorRefPropertyExtractor();

    private PromiseActorRefPropertyExtractor() {
        super();
    }

    public Map<String, Object> extractProperties(ActorRef actorRef) {
        PromiseActorRef ref = (PromiseActorRef) actorRef;
        return Collections.<String, Object>singletonMap("local", Boolean.valueOf(ref.isLocal()));
    }

}