/**
* 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.*;
import rx.
Single.
OnSubscribe;
import rx.exceptions.
Exceptions;
import rx.functions.
Func1;
/**
* Signal a value returned by a resumeFunction when the source signals a Throwable.
*
* @param <T> the value type
*/
public final class
SingleOnErrorReturn<T> implements
Single.
OnSubscribe<T> {
final
Single.
OnSubscribe<T>
source;
final
Func1<
Throwable, ? extends T>
resumeFunction;
public
SingleOnErrorReturn(
OnSubscribe<T>
source,
Func1<
Throwable, ? extends T>
resumeFunction) {
this.
source =
source;
this.
resumeFunction =
resumeFunction;
}
@
Override
public void
call(
SingleSubscriber<? super T>
t) {
OnErrorReturnsSingleSubscriber<T>
parent = new
OnErrorReturnsSingleSubscriber<T>(
t,
resumeFunction);
t.
add(
parent);
source.
call(
parent);
}
static final class
OnErrorReturnsSingleSubscriber<T> extends
SingleSubscriber<T> {
final
SingleSubscriber<? super T>
actual;
final
Func1<
Throwable, ? extends T>
resumeFunction;
public
OnErrorReturnsSingleSubscriber(
SingleSubscriber<? super T>
actual,
Func1<
Throwable, ? extends T>
resumeFunction) {
this.
actual =
actual;
this.
resumeFunction =
resumeFunction;
}
@
Override
public void
onSuccess(T
value) {
actual.
onSuccess(
value);
}
@
Override
public void
onError(
Throwable error) {
T
v;
try {
v =
resumeFunction.
call(
error);
} catch (
Throwable ex) {
Exceptions.
throwIfFatal(
ex);
actual.
onError(
ex);
return;
}
actual.
onSuccess(
v);
}
}
}