dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/reactive/ClientTripleReactorSubscriber.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.dubbo.rpc.protocol.tri.reactive;

import org.apache.dubbo.rpc.protocol.tri.observer.ClientCallToObserverAdapter;

/**
 * The subscriber in client to subscribe user publisher and is subscribed by ClientStreamObserver.
 */
public class ClientTripleReactorSubscriber<T> extends AbstractTripleReactorSubscriber<T> {

    @Override
    public void cancel() {
        if (!isCanceled()) {
            super.cancel();
            ((ClientCallToObserverAdapter<T>) downstream).cancel(new Exception("Cancelled"));
        }
    }
}