net.kuujo.vertigo.message.impl.VertigoMessageImpl.java Source code

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Here is the source code for net.kuujo.vertigo.message.impl.VertigoMessageImpl.java

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/*
 * Copyright 2014 the original author or authors.
 *
 * 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 net.kuujo.vertigo.message.impl;

import io.vertx.core.AsyncResult;
import io.vertx.core.MultiMap;
import io.vertx.core.eventbus.Message;
import io.vertx.core.eventbus.ReplyException;
import io.vertx.core.logging.Logger;
import io.vertx.core.logging.LoggerFactory;
import net.kuujo.vertigo.VertigoException;
import net.kuujo.vertigo.message.VertigoMessage;

/**
 * Vertigo message implementation.
 *
 * @author <a href="http://github.com/kuujo">Jordan Halterman</a>
 */
public class VertigoMessageImpl<T> implements VertigoMessage<T> {
    private Message<T> message;
    private String id;
    private T body;
    private MultiMap headers;
    private boolean acked;

    private static final Logger logger = LoggerFactory.getLogger(VertigoMessage.class);

    public VertigoMessageImpl(String id, Message<T> message) {
        this.id = id;
        this.body = message.body();
        this.headers = message.headers();
        this.message = message;
    }

    @Override
    public String id() {
        return id;
    }

    @Override
    public T body() {
        return body;
    }

    @Override
    public MultiMap headers() {
        return headers;
    }

    @Override
    public void ack() {
        if (!acked) {
            acked = true;
            message.reply(null);
        }
    }

    @Override
    public void fail(Throwable cause) {
        if (!acked) {
            if (cause instanceof ReplyException) {
                ReplyException exception = (ReplyException) cause;
                message.fail(exception.failureCode(), exception.getMessage());
            } else if (cause != null) {
                message.fail(-1, cause.getClass().getSimpleName() + ": " + cause.getMessage());
                //        logger.error(cause.getMessage(), cause);
            } else {
                message.fail(-1, "Unknown error.");
                //        logger.error(new VertigoException("Unknown error."));
            }
            acked = true;
        }
    }

    @Override
    public void handle(AsyncResult<Void> result) {
        if (result.succeeded()) {
            ack();
        } else {
            fail(result.cause());
        }
    }

}