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The official Couchbase JVM Core IO Library
/**
* Copyright (c) 2015 Couchbase, Inc.
*
* 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 DEALING
* IN THE SOFTWARE.
*/
package com.couchbase.client.core.event;
import rx.Observable;
import rx.Scheduler;
import rx.subjects.PublishSubject;
import rx.subjects.Subject;
/**
* The default event bus implementation.
*
* @author Michael Nitschinger
* @since 1.1.0
*/
public class DefaultEventBus implements EventBus {
private final Subject bus;
private final Scheduler scheduler;
public DefaultEventBus(final Scheduler scheduler) {
bus = PublishSubject.create().toSerialized();
this.scheduler = scheduler;
}
@Override
public Observable get() {
return bus.onBackpressureDrop().observeOn(scheduler);
}
@Override
public void publish(final CouchbaseEvent event) {
if (bus.hasObservers()) {
bus.onNext(event);
}
}
}