hu.akarnokd.rxjava2.subscribers.nbp.NbpSubscribers Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of rxjava2-backport Show documentation
Show all versions of rxjava2-backport Show documentation
rxjava2-backport developed by David Karnok
/**
* 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.subscribers.nbp;
import hu.akarnokd.rxjava2.NbpObservable.NbpSubscriber;
import hu.akarnokd.rxjava2.disposables.Disposable;
import hu.akarnokd.rxjava2.functions.Consumer;
import hu.akarnokd.rxjava2.internal.functions.*;
import hu.akarnokd.rxjava2.internal.subscribers.nbp.*;
import hu.akarnokd.rxjava2.internal.subscriptions.SubscriptionHelper;
import hu.akarnokd.rxjava2.plugins.RxJavaPlugins;
/**
* Utility class to construct various resource-holding and disposable Subscribers from lambdas.
*/
public final class NbpSubscribers {
/** Utility class. */
private NbpSubscribers() {
throw new IllegalStateException("No instances!");
}
@SuppressWarnings("unchecked")
public static NbpSubscriber empty() {
return (NbpSubscriber)NbpEmptySubscriber.INSTANCE;
}
@SuppressWarnings("unchecked")
public static NbpSubscriber cancelled() {
return (NbpSubscriber)NbpCancelledSubscriber.INSTANCE;
}
public static NbpDisposableSubscriber emptyDisposable() {
return new NbpDisposableSubscriber() {
@Override
public void onNext(T t) {
}
@Override
public void onError(Throwable t) {
}
@Override
public void onComplete() {
}
};
}
public static NbpDisposableSubscriber createDisposable(
Consumer onNext
) {
return createDisposable(onNext, RxJavaPlugins.errorConsumer(), Functions.emptyRunnable(), Functions.emptyRunnable());
}
public static NbpDisposableSubscriber createDisposable(
Consumer onNext,
Consumer onError
) {
return createDisposable(onNext, onError, Functions.emptyRunnable(), Functions.emptyRunnable());
}
public static NbpDisposableSubscriber createDisposable(
Consumer onNext,
Consumer onError,
Runnable onComplete
) {
return createDisposable(onNext, onError, onComplete, Functions.emptyRunnable());
}
public static NbpDisposableSubscriber createDisposable(
final Consumer onNext,
final Consumer onError,
final Runnable onComplete,
final Runnable onStart
) {
Objects.requireNonNull(onNext, "onNext is null");
Objects.requireNonNull(onError, "onError is null");
Objects.requireNonNull(onComplete, "onComplete is null");
Objects.requireNonNull(onStart, "onStart is null");
return new NbpDisposableSubscriber() {
boolean done;
@Override
protected void onStart() {
super.onStart();
try {
onStart.run();
} catch (Throwable e) {
done = true;
dispose();
try {
onError.accept(e);
} catch (Throwable ex) {
RxJavaPlugins.onError(ex);
RxJavaPlugins.onError(e);
}
}
}
@Override
public void onNext(T t) {
if (done) {
return;
}
try {
onNext.accept(t);
} catch (Throwable e) {
done = true;
dispose();
try {
onError.accept(e);
} catch (Throwable ex) {
RxJavaPlugins.onError(ex);
RxJavaPlugins.onError(e);
}
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
try {
onError.accept(t);
} catch (Throwable ex) {
RxJavaPlugins.onError(ex);
RxJavaPlugins.onError(t);
}
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
try {
onComplete.run();
} catch (Throwable e) {
RxJavaPlugins.onError(e);
}
}
};
}
public static NbpSubscriber create(
Consumer onNext
) {
return create(onNext, RxJavaPlugins.errorConsumer(), Functions.emptyRunnable(), Functions.emptyConsumer());
}
public static NbpSubscriber create(
Consumer onNext,
Consumer onError
) {
return create(onNext, onError, Functions.emptyRunnable(), Functions.emptyConsumer());
}
public static NbpSubscriber create(
Consumer onNext,
Consumer onError,
Runnable onComplete
) {
return create(onNext, onError, onComplete, Functions.emptyConsumer());
}
public static NbpSubscriber create(
final Consumer onNext,
final Consumer onError,
final Runnable onComplete,
final Consumer onStart
) {
Objects.requireNonNull(onNext, "onNext is null");
Objects.requireNonNull(onError, "onError is null");
Objects.requireNonNull(onComplete, "onComplete is null");
Objects.requireNonNull(onStart, "onStart is null");
return new NbpSubscriber() {
boolean done;
Disposable s;
@Override
public void onSubscribe(Disposable s) {
if (SubscriptionHelper.validateDisposable(this.s, s)) {
return;
}
this.s = s;
try {
onStart.accept(s);
} catch (Throwable e) {
done = true;
s.dispose();
try {
onError.accept(e);
} catch (Throwable ex) {
RxJavaPlugins.onError(ex);
RxJavaPlugins.onError(e);
}
}
}
@Override
public void onNext(T t) {
if (done) {
return;
}
try {
onNext.accept(t);
} catch (Throwable e) {
done = true;
s.dispose();
try {
onError.accept(e);
} catch (Throwable ex) {
RxJavaPlugins.onError(ex);
RxJavaPlugins.onError(e);
}
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
try {
onError.accept(t);
} catch (Throwable ex) {
RxJavaPlugins.onError(ex);
RxJavaPlugins.onError(t);
}
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
try {
onComplete.run();
} catch (Throwable e) {
RxJavaPlugins.onError(e);
}
}
};
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy