/*
* Copyright (c) 2011-2017 Pivotal Software Inc, All Rights Reserved.
*
* 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 reactor.core.publisher;
import reactor.core.
CoreSubscriber;
import reactor.core.
Fuseable;
import reactor.core.
Scannable;
import reactor.util.context.
Context;
/**
* Materialize current {@link Context} from the subscribing flow
*/
final class
MonoCurrentContext extends
Mono<
Context>
implements
Fuseable,
Scannable {
static final
MonoCurrentContext INSTANCE = new
MonoCurrentContext();
@
SuppressWarnings("unchecked")
public void
subscribe(
CoreSubscriber<? super
Context>
actual) {
Context ctx =
actual.
currentContext();
actual.
onSubscribe(
Operators.
scalarSubscription(
actual,
ctx));
}
@
Override
public
Object scanUnsafe(
Attr key) {
return null; //no particular key to be represented, still useful in hooks
}
}