org.jboss.weld.vertx.examples.translator.Translator.java Source code

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Here is the source code for org.jboss.weld.vertx.examples.translator.Translator.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2016, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of 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.weld.vertx.examples.translator;

import static org.jboss.weld.vertx.examples.translator.Addresses.TRANSLATE;

import java.util.List;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Observes;
import javax.inject.Inject;

import org.jboss.weld.vertx.VertxConsumer;
import org.jboss.weld.vertx.VertxEvent;

import io.vertx.core.json.JsonArray;
import io.vertx.core.json.JsonObject;
import io.vertx.core.logging.Logger;
import io.vertx.core.logging.LoggerFactory;

/**
 *
 * @author Martin Kouba
 */
@ApplicationScoped
public class Translator {

    private static final Logger LOGGER = LoggerFactory.getLogger(Translator.class);

    private final SentenceParser parser;

    private final DataCache cache;

    @Inject
    Translator(SentenceParser parser, DataCache dictionary) {
        this.parser = parser;
        this.cache = dictionary;
    }

    public void translate(@Observes @VertxConsumer(TRANSLATE) VertxEvent event) {
        String sentence = event.getMessageBody().toString();
        LOGGER.info("Going to translate: " + sentence);

        JsonArray results = new JsonArray();
        for (String word : parser.parse(sentence)) {

            JsonObject result = new JsonObject();
            result.put("word", word);

            List<String> translations = cache.getTranslations(word);
            if (translations != null) {
                result.put("translations", new JsonArray(translations));
            }
            results.add(result);
        }
        event.setReply(results);
    }

}