content: /*
   * 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.cassandra.sidecar.client;
  
  import io.vertx.core.AsyncResult;
  import io.vertx.core.Future;
  import io.vertx.core.Handler;
  import io.vertx.core.buffer.Buffer;
  import io.vertx.core.streams.WriteStream;
  
  /**
   * A {@link WriteStream} that writes available data to the {@link StreamConsumer}
   */
  public class StreamConsumerWriteStream implements WriteStream<Buffer>
  {
      private final StreamConsumer streamConsumer;
  
      /**
       * Constructs a WriteStream with the provided {@code streamConsumer}
       *
       * @param streamConsumer the consumer of the data being streamed
       */
      public StreamConsumerWriteStream(StreamConsumer streamConsumer)
      {
          this.streamConsumer = streamConsumer;
      }
  
      @Override
      public WriteStream<Buffer> exceptionHandler(Handler<Throwable> handler)
      {
          return this;
      }
  
      @Override
      public Future<Void> write(Buffer data)
      {
          streamConsumer.onRead(new VertxStreamBuffer(data));
          return Future.succeededFuture();
      }
  
      @Override
      public void write(Buffer data, Handler<AsyncResult<Void>> handler)
      {
          streamConsumer.onRead(new VertxStreamBuffer(data));
          if (handler != null)
          {
              handler.handle(Future.succeededFuture());
          }
      }
  
      @Override
      public void end(Handler<AsyncResult<Void>> handler)
      {
          streamConsumer.onComplete();
          if (handler != null)
          {
              handler.handle(Future.succeededFuture());
          }
      }
  
      @Override
      public WriteStream<Buffer> setWriteQueueMaxSize(int maxSize)
      {
          return this;
      }
  
      @Override
      public boolean writeQueueFull()
      {
          return false;
      }
  
      @Override
      public WriteStream<Buffer> drainHandler(Handler<Void> handler)
      {
          return this;
      }
  }
  