DMDirc-Client/src/main/java/com/dmdirc/DMDircMBassador.java

/*
 * Copyright (c) 2006-2015 DMDirc Developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.dmdirc;

import com.dmdirc.events.DMDircEvent;
import com.dmdirc.interfaces.EventBus;

import net.engio.mbassy.bus.MBassador;
import net.engio.mbassy.bus.config.BusConfiguration;
import net.engio.mbassy.bus.config.Feature;
import net.engio.mbassy.bus.config.IBusConfiguration;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static com.dmdirc.util.LogUtils.APP_ERROR;

/**
 * Generified MBassador.
 */
public class DMDircMBassador implements EventBus {

    private static final Logger LOG = LoggerFactory.getLogger(DMDircMBassador.class);

    private final MBassador<DMDircEvent> bus;

    public DMDircMBassador() {
        this(new BusConfiguration()
                .addFeature(Feature.SyncPubSub.Default())
                .addFeature(Feature.AsynchronousHandlerInvocation.Default(1, 1))
                .addFeature(
                        Feature.AsynchronousMessageDispatch.Default()
                                .setNumberOfMessageDispatchers(1)));
    }

    @SuppressWarnings("TypeMayBeWeakened")
    public DMDircMBassador(final IBusConfiguration configuration) {
        bus = new MBassador<>(configuration.addPublicationErrorHandler(
                e -> LOG.error(APP_ERROR, e.getMessage(), e.getCause())));
    }

    @Override
    public void subscribe(Object listener) {
        bus.subscribe(listener);
    }

    @Override
    public void unsubscribe(Object listener) {
        bus.unsubscribe(listener);
    }

    @Override
    public void publish(DMDircEvent message) {
        bus.publish(message);
    }

    @Override
    public void publishAsync(DMDircEvent message) {
        bus.publishAsync(message);
    }

}