/**
 * Copyright 2014 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.operators;

import rx.Subscription;
import rx.exceptions.Exceptions;
import rx.plugins.DebugNotification;
import rx.plugins.DebugNotificationListener;

final class DebugSubscription<T, C> implements Subscription {
    private final DebugSubscriber<T, C> debugObserver;
    private DebugNotificationListener<C> listener;

    DebugSubscription(DebugSubscriber<T, C> debugObserver, DebugNotificationListener<C> listener) {
        this.debugObserver = debugObserver;
        this.listener = listener;
    }

    @Override
    public void unsubscribe() {
        final DebugNotification<T> n = DebugNotification.<T> createUnsubscribe(debugObserver.getActual(), debugObserver.getFrom(), debugObserver.getTo());
        C context = listener.start(n);
        try {
            debugObserver.unsubscribe();
            listener.complete(context);
        } catch (Throwable e) {
            listener.error(context, e);
            throw Exceptions.propagate(e);
        }
    }

    @Override
    public boolean isUnsubscribed() {
        return debugObserver.isUnsubscribed();
    }
}