/**
* 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.observable;
import java.util.concurrent.
TimeUnit;
import java.util.concurrent.atomic.
AtomicReference;
import io.reactivex.*;
import io.reactivex.
Scheduler.
Worker;
import io.reactivex.disposables.
Disposable;
import io.reactivex.internal.disposables.*;
import io.reactivex.observers.
SerializedObserver;
import io.reactivex.plugins.
RxJavaPlugins;
public final class
ObservableThrottleFirstTimed<T> extends
AbstractObservableWithUpstream<T, T> {
final long
timeout;
final
TimeUnit unit;
final
Scheduler scheduler;
public
ObservableThrottleFirstTimed(
ObservableSource<T>
source,
long
timeout,
TimeUnit unit,
Scheduler scheduler) {
super(
source);
this.
timeout =
timeout;
this.
unit =
unit;
this.
scheduler =
scheduler;
}
@
Override
public void
subscribeActual(
Observer<? super T>
t) {
source.
subscribe(new
DebounceTimedObserver<T>(
new
SerializedObserver<T>(
t),
timeout,
unit,
scheduler.
createWorker()));
}
static final class
DebounceTimedObserver<T>
extends
AtomicReference<
Disposable>
implements
Observer<T>,
Disposable,
Runnable {
private static final long
serialVersionUID = 786994795061867455L;
final
Observer<? super T>
downstream;
final long
timeout;
final
TimeUnit unit;
final
Scheduler.
Worker worker;
Disposable upstream;
volatile boolean
gate;
boolean
done;
DebounceTimedObserver(
Observer<? super T>
actual, long
timeout,
TimeUnit unit,
Worker worker) {
this.
downstream =
actual;
this.
timeout =
timeout;
this.
unit =
unit;
this.
worker =
worker;
}
@
Override
public void
onSubscribe(
Disposable d) {
if (
DisposableHelper.
validate(this.
upstream,
d)) {
this.
upstream =
d;
downstream.
onSubscribe(this);
}
}
@
Override
public void
onNext(T
t) {
if (!
gate && !
done) {
gate = true;
downstream.
onNext(
t);
Disposable d =
get();
if (
d != null) {
d.
dispose();
}
DisposableHelper.
replace(this,
worker.
schedule(this,
timeout,
unit));
}
}
@
Override
public void
run() {
gate = false;
}
@
Override
public void
onError(
Throwable t) {
if (
done) {
RxJavaPlugins.
onError(
t);
} else {
done = true;
downstream.
onError(
t);
worker.
dispose();
}
}
@
Override
public void
onComplete() {
if (!
done) {
done = true;
downstream.
onComplete();
worker.
dispose();
}
}
@
Override
public void
dispose() {
upstream.
dispose();
worker.
dispose();
}
@
Override
public boolean
isDisposed() {
return
worker.
isDisposed();
}
}
}