/**
* Copyright 2016 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 rx.internal.operators;
import rx.
Completable;
import rx.
Completable.
OnSubscribe;
import rx.
CompletableSubscriber;
import rx.
Single;
import rx.
SingleSubscriber;
import rx.
Subscription;
import rx.exceptions.
Exceptions;
import rx.functions.
Func1;
public final class
CompletableFlatMapSingleToCompletable<T> implements
OnSubscribe {
final
Single<T>
source;
final
Func1<? super T, ? extends
Completable>
mapper;
public
CompletableFlatMapSingleToCompletable(
Single<T>
source,
Func1<? super T, ? extends
Completable>
mapper) {
this.
source =
source;
this.
mapper =
mapper;
}
@
Override
public void
call(
CompletableSubscriber t) {
SourceSubscriber<T>
parent = new
SourceSubscriber<T>(
t,
mapper);
t.
onSubscribe(
parent);
source.
subscribe(
parent);
}
static final class
SourceSubscriber<T> extends
SingleSubscriber<T> implements
CompletableSubscriber {
final
CompletableSubscriber actual;
final
Func1<? super T, ? extends
Completable>
mapper;
public
SourceSubscriber(
CompletableSubscriber actual,
Func1<? super T, ? extends
Completable>
mapper) {
this.
actual =
actual;
this.
mapper =
mapper;
}
@
Override
public void
onSuccess(T
value) {
Completable c;
try {
c =
mapper.
call(
value);
} catch (
Throwable ex) {
Exceptions.
throwIfFatal(
ex);
onError(
ex);
return;
}
if (
c == null) {
onError(new
NullPointerException("The mapper returned a null Completable"));
return;
}
c.
subscribe(this);
}
@
Override
public void
onError(
Throwable error) {
actual.
onError(
error);
}
@
Override
public void
onCompleted() {
actual.
onCompleted();
}
@
Override
public void
onSubscribe(
Subscription d) {
add(
d);
}
}
}