hu.akarnokd.rxjava2.internal.subscribers.ToNotificationSubscriber Maven / Gradle / Ivy

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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;

import org.reactivestreams.*;

import hu.akarnokd.rxjava2.*;
import hu.akarnokd.rxjava2.functions.Consumer;
import hu.akarnokd.rxjava2.internal.subscriptions.SubscriptionHelper;

public final class ToNotificationSubscriber implements Subscriber {
    final Consumer>> consumer;
    
    Subscription s;
    
    public ToNotificationSubscriber(Consumer>> consumer) {
        this.consumer = consumer;
    }
    
    @Override
    public void onSubscribe(Subscription s) {
        if (SubscriptionHelper.validateSubscription(this.s, s)) {
            return;
        }
        this.s = s;
        s.request(Long.MAX_VALUE);
    }
    
    @Override
    public void onNext(T t) {
        if (t == null) {
            s.cancel();
            onError(new NullPointerException());
        } else {
            consumer.accept(Try.ofValue(Optional.