io.reactivex.internal.operators.flowable.FlowableMergeWithCompletable Maven / Gradle / Ivy
Show all versions of rxjava Show documentation
/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* 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 io.reactivex.internal.operators.flowable;
import java.util.concurrent.atomic.*;
import org.reactivestreams.*;
import io.reactivex.*;
import io.reactivex.disposables.Disposable;
import io.reactivex.internal.disposables.DisposableHelper;
import io.reactivex.internal.subscriptions.SubscriptionHelper;
import io.reactivex.internal.util.*;
/**
* Merges a Flowable and a Completable by emitting the items of the Flowable and waiting until
* both the Flowable and Completable complete normally.
* History: 2.1.10 - experimental
* @param the element type of the Flowable
* @since 2.2
*/
public final class FlowableMergeWithCompletable extends AbstractFlowableWithUpstream {
final CompletableSource other;
public FlowableMergeWithCompletable(Flowable source, CompletableSource other) {
super(source);
this.other = other;
}
@Override
protected void subscribeActual(Subscriber super T> subscriber) {
MergeWithSubscriber parent = new MergeWithSubscriber(subscriber);
subscriber.onSubscribe(parent);
source.subscribe(parent);
other.subscribe(parent.otherObserver);
}
static final class MergeWithSubscriber extends AtomicInteger
implements FlowableSubscriber, Subscription {
private static final long serialVersionUID = -4592979584110982903L;
final Subscriber super T> downstream;
final AtomicReference mainSubscription;
final OtherObserver otherObserver;
final AtomicThrowable error;
final AtomicLong requested;
volatile boolean mainDone;
volatile boolean otherDone;
MergeWithSubscriber(Subscriber super T> downstream) {
this.downstream = downstream;
this.mainSubscription = new AtomicReference();
this.otherObserver = new OtherObserver(this);
this.error = new AtomicThrowable();
this.requested = new AtomicLong();
}
@Override
public void onSubscribe(Subscription s) {
SubscriptionHelper.deferredSetOnce(mainSubscription, requested, s);
}
@Override
public void onNext(T t) {
HalfSerializer.onNext(downstream, t, this, error);
}
@Override
public void onError(Throwable ex) {
SubscriptionHelper.cancel(mainSubscription);
HalfSerializer.onError(downstream, ex, this, error);
}
@Override
public void onComplete() {
mainDone = true;
if (otherDone) {
HalfSerializer.onComplete(downstream, this, error);
}
}
@Override
public void request(long n) {
SubscriptionHelper.deferredRequest(mainSubscription, requested, n);
}
@Override
public void cancel() {
SubscriptionHelper.cancel(mainSubscription);
DisposableHelper.dispose(otherObserver);
}
void otherError(Throwable ex) {
SubscriptionHelper.cancel(mainSubscription);
HalfSerializer.onError(downstream, ex, this, error);
}
void otherComplete() {
otherDone = true;
if (mainDone) {
HalfSerializer.onComplete(downstream, this, error);
}
}
static final class OtherObserver extends AtomicReference
implements CompletableObserver {
private static final long serialVersionUID = -2935427570954647017L;
final MergeWithSubscriber> parent;
OtherObserver(MergeWithSubscriber> parent) {
this.parent = parent;
}
@Override
public void onSubscribe(Disposable d) {
DisposableHelper.setOnce(this, d);
}
@Override
public void onError(Throwable e) {
parent.otherError(e);
}
@Override
public void onComplete() {
parent.otherComplete();
}
}
}
}