io.reactivex.internal.operators.flowable.FlowableDoOnEach Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of rxjava Show documentation
Show all versions of rxjava Show documentation
Reactive Extensions for Java
/**
* 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 org.reactivestreams.Subscriber;
import io.reactivex.Flowable;
import io.reactivex.annotations.Nullable;
import io.reactivex.exceptions.*;
import io.reactivex.functions.*;
import io.reactivex.internal.fuseable.ConditionalSubscriber;
import io.reactivex.internal.subscribers.*;
import io.reactivex.internal.util.ExceptionHelper;
import io.reactivex.plugins.RxJavaPlugins;
public final class FlowableDoOnEach extends AbstractFlowableWithUpstream {
final Consumer onNext;
final Consumer onError;
final Action onComplete;
final Action onAfterTerminate;
public FlowableDoOnEach(Flowable source, Consumer onNext,
Consumer onError,
Action onComplete,
Action onAfterTerminate) {
super(source);
this.onNext = onNext;
this.onError = onError;
this.onComplete = onComplete;
this.onAfterTerminate = onAfterTerminate;
}
@Override
protected void subscribeActual(Subscriber s) {
if (s instanceof ConditionalSubscriber) {
source.subscribe(new DoOnEachConditionalSubscriber(
(ConditionalSubscriber)s, onNext, onError, onComplete, onAfterTerminate));
} else {
source.subscribe(new DoOnEachSubscriber(
s, onNext, onError, onComplete, onAfterTerminate));
}
}
static final class DoOnEachSubscriber extends BasicFuseableSubscriber {
final Consumer onNext;
final Consumer onError;
final Action onComplete;
final Action onAfterTerminate;
DoOnEachSubscriber(
Subscriber actual,
Consumer onNext,
Consumer onError,
Action onComplete,
Action onAfterTerminate) {
super(actual);
this.onNext = onNext;
this.onError = onError;
this.onComplete = onComplete;
this.onAfterTerminate = onAfterTerminate;
}
@Override
public void onNext(T t) {
if (done) {
return;
}
if (sourceMode != NONE) {
downstream.onNext(null);
return;
}
try {
onNext.accept(t);
} catch (Throwable e) {
fail(e);
return;
}
downstream.onNext(t);
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
boolean relay = true;
try {
onError.accept(t);
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
downstream.onError(new CompositeException(t, e));
relay = false;
}
if (relay) {
downstream.onError(t);
}
try {
onAfterTerminate.run();
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
RxJavaPlugins.onError(e);
}
}
@Override
public void onComplete() {
if (done) {
return;
}
try {
onComplete.run();
} catch (Throwable e) {
fail(e);
return;
}
done = true;
downstream.onComplete();
try {
onAfterTerminate.run();
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
RxJavaPlugins.onError(e);
}
}
@Override
public int requestFusion(int mode) {
return transitiveBoundaryFusion(mode);
}
@Nullable
@Override
public T poll() throws Exception {
T v;
try {
v = qs.poll();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
try {
onError.accept(ex);
} catch (Throwable exc) {
throw new CompositeException(ex, exc);
}
throw ExceptionHelper.throwIfThrowable(ex);
}
if (v != null) {
try {
try {
onNext.accept(v);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
try {
onError.accept(ex);
} catch (Throwable exc) {
throw new CompositeException(ex, exc);
}
throw ExceptionHelper.throwIfThrowable(ex);
}
} finally {
onAfterTerminate.run();
}
} else {
if (sourceMode == SYNC) {
onComplete.run();
onAfterTerminate.run();
}
}
return v;
}
}
static final class DoOnEachConditionalSubscriber extends BasicFuseableConditionalSubscriber {
final Consumer onNext;
final Consumer onError;
final Action onComplete;
final Action onAfterTerminate;
DoOnEachConditionalSubscriber(
ConditionalSubscriber actual,
Consumer onNext,
Consumer onError,
Action onComplete,
Action onAfterTerminate) {
super(actual);
this.onNext = onNext;
this.onError = onError;
this.onComplete = onComplete;
this.onAfterTerminate = onAfterTerminate;
}
@Override
public void onNext(T t) {
if (done) {
return;
}
if (sourceMode != NONE) {
downstream.onNext(null);
return;
}
try {
onNext.accept(t);
} catch (Throwable e) {
fail(e);
return;
}
downstream.onNext(t);
}
@Override
public boolean tryOnNext(T t) {
if (done) {
return false;
}
try {
onNext.accept(t);
} catch (Throwable e) {
fail(e);
return false;
}
return downstream.tryOnNext(t);
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
boolean relay = true;
try {
onError.accept(t);
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
downstream.onError(new CompositeException(t, e));
relay = false;
}
if (relay) {
downstream.onError(t);
}
try {
onAfterTerminate.run();
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
RxJavaPlugins.onError(e);
}
}
@Override
public void onComplete() {
if (done) {
return;
}
try {
onComplete.run();
} catch (Throwable e) {
fail(e);
return;
}
done = true;
downstream.onComplete();
try {
onAfterTerminate.run();
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
RxJavaPlugins.onError(e);
}
}
@Override
public int requestFusion(int mode) {
return transitiveBoundaryFusion(mode);
}
@Nullable
@Override
public T poll() throws Exception {
T v;
try {
v = qs.poll();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
try {
onError.accept(ex);
} catch (Throwable exc) {
throw new CompositeException(ex, exc);
}
throw ExceptionHelper.throwIfThrowable(ex);
}
if (v != null) {
try {
try {
onNext.accept(v);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
try {
onError.accept(ex);
} catch (Throwable exc) {
throw new CompositeException(ex, exc);
}
throw ExceptionHelper.throwIfThrowable(ex);
}
} finally {
onAfterTerminate.run();
}
} else {
if (sourceMode == SYNC) {
onComplete.run();
onAfterTerminate.run();
}
}
return v;
}
}
}