content: /*
   * Copyright 2021-2024 Aklivity Inc.
   *
   * Aklivity 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 io.aklivity.zilla.runtime.engine.test.internal.k3po.ext.behavior.handler;
  
  import static org.jboss.netty.buffer.ChannelBuffers.EMPTY_BUFFER;
  
  import java.util.EnumSet;
  
  import org.jboss.netty.channel.ChannelFuture;
  import org.jboss.netty.channel.ChannelHandlerContext;
  import org.jboss.netty.channel.MessageEvent;
  
  import io.aklivity.k3po.runtime.driver.internal.behavior.handler.event.AbstractEventHandler;
  
  public class ReadEmptyDataHandler extends AbstractEventHandler
  {
      public ReadEmptyDataHandler()
      {
          super(EnumSet.of(ChannelEventKind.MESSAGE));
      }
  
      @Override
      protected StringBuilder describe(
          StringBuilder sb)
      {
          return sb.append("read data.empty");
      }
  
      @Override
      public void messageReceived(
          ChannelHandlerContext ctx,
          MessageEvent e) throws Exception
      {
          ChannelFuture handlerFuture = getHandlerFuture();
  
          try
          {
              if (!handlerFuture.isDone() && e.getMessage() == EMPTY_BUFFER)
              {
                  handlerFuture.setSuccess();
              }
              else
              {
                  super.messageReceived(ctx, e);
              }
          }
          catch (Exception ex)
          {
              handlerFuture.setFailure(ex);
          }
      }
  }
  