/*
 * 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 java.util.Objects;
import java.util.function.BiFunction;

import org.reactivestreams.Subscriber;
import reactor.core.Fuseable;
import reactor.util.context.Context;

final class MonoContextMap<T> extends MonoOperator<T, T> implements Fuseable {

	final BiFunction<Context, Context, Context> doOnContext;

	MonoContextMap(Mono<? extends T> source,
			BiFunction<Context, Context, Context> doOnContext) {
		super(source);
		this.doOnContext = Objects.requireNonNull(doOnContext, "doOnContext");
	}

	@Override
	public void subscribe(Subscriber<? super T> s, Context ctx) {
		Context c;

		try {
			c = doOnContext.apply(ctx, Context.empty());
		}
		catch (Throwable t) {
			Operators.error(s, Operators.onOperatorError(t));
			return;
		}
		if(c != ctx){
			Context.push(s, c);
		}
		source.subscribe(new FluxContextMap.ContextMapSubscriber<>(s,
						doOnContext, c),
				c);
	}

}

@@ -1245,217 +1245,8 @@
 ) %7B%0A
-%09%09Context c;%0A%0A%09%09try %7B%0A%09%09%09c = doOnContext.apply(ctx, Context.empty());%0A%09%09%7D%0A%09%09catch (Throwable t) %7B%0A%09%09%09Operators.error(s, Operators.onOperatorError(t));%0A%09%09%09return;%0A%09%09%7D%0A%09%09if(c != ctx)%7B%0A%09%09%09Context.push(s, c);%0A%09%09%7D%0A
 %09%09so
@@ -1308,15 +1308,9 @@
 %3E(s,
-%0A%09%09%09%09%09%09
+ 
 doOn
@@ -1323,16 +1323,16 @@
 t, c
-),%0A%09%09%09%09c
+tx), ctx
 );%0A%09

fix duplicate contextMap