/**
* 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 java.util.concurrent.
Callable;
import rx.*;
import rx.exceptions.
Exceptions;
/**
* Execute a callable and emit its resulting value.
*
* @param <T> the value type
*/
public final class
SingleFromCallable<T> implements
Single.
OnSubscribe<T> {
final
Callable<? extends T>
callable;
public
SingleFromCallable(
Callable<? extends T>
callable) {
this.
callable =
callable;
}
@
Override
public void
call(
SingleSubscriber<? super T>
t) {
T
v;
try {
v =
callable.
call();
} catch (
Throwable ex) {
Exceptions.
throwIfFatal(
ex);
t.
onError(
ex);
return;
}
t.
onSuccess(
v);
}
}