Java tutorial
/* * Copyright 2015 Dmytro Titov * * 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.autsia.socialboot.businesslogic.twitter.callables; import com.autsia.socialboot.SocialBootApplication; import com.autsia.socialboot.businesslogic.nlp.model.Sentiment; import com.autsia.socialboot.businesslogic.nlp.processors.NLPProcessor; import com.autsia.socialboot.businesslogic.twitter.dto.TweetWrapper; import com.hazelcast.core.HazelcastInstance; import com.hazelcast.core.HazelcastInstanceAware; import com.hazelcast.core.IQueue; import com.hazelcast.spring.context.SpringAware; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import java.io.Serializable; import java.util.concurrent.Callable; /** * Callable for Hazelcast to process tweet on a remote node */ @SpringAware public class TwitterCallable implements Callable<TweetWrapper>, Serializable, HazelcastInstanceAware { private static final Logger LOGGER = LoggerFactory.getLogger(TwitterCallable.class); private transient HazelcastInstance hazelcastInstance; @Autowired private transient NLPProcessor nlpProcessor; private TweetWrapper tweetWrapper; public TwitterCallable(TweetWrapper tweetWrapper) { this.tweetWrapper = tweetWrapper; } @Override public TweetWrapper call() throws Exception { Sentiment sentiment = nlpProcessor.findSentiment(tweetWrapper.getText()); tweetWrapper.setSentiment(sentiment); IQueue<Object> queue = hazelcastInstance.getQueue(SocialBootApplication.class.getSimpleName()); queue.put(tweetWrapper); return tweetWrapper; } @Override public void setHazelcastInstance(HazelcastInstance hazelcastInstance) { this.hazelcastInstance = hazelcastInstance; } }