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/**
 * Copyright 2015 David Karnok and Netflix, Inc.
 * 
 * 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 hu.akarnokd.rxjava2.internal.subscribers.nbp;

import hu.akarnokd.rxjava2.NbpObservable.NbpSubscriber;
import hu.akarnokd.rxjava2.disposables.Disposable;
import hu.akarnokd.rxjava2.plugins.RxJavaPlugins;

/**
 * A subscriber that cancels the subscription sent to it 
 * and ignores all events (onError is forwarded to RxJavaPlugins though).
 */
public enum NbpCancelledSubscriber implements NbpSubscriber {
    INSTANCE;
    
    @SuppressWarnings("unchecked")
    public static  NbpSubscriber instance() {
        return (NbpSubscriber)INSTANCE;
    }
    
    @Override
    public void onSubscribe(Disposable s) {
        s.dispose();
    }
    
    @Override
    public void onNext(Object t) {
        
    }
    
    @Override
    public void onError(Throwable t) {
        RxJavaPlugins.onError(t);
    }
    
    @Override
    public void onComplete() {
        
    }
}