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 java.lang.String.format;
  import static java.util.Objects.requireNonNull;
  
  import java.util.Set;
  
  import org.jboss.netty.channel.Channel;
  import org.jboss.netty.channel.ChannelFuture;
  import org.jboss.netty.channel.ChannelHandlerContext;
  
  import io.aklivity.k3po.runtime.driver.internal.behavior.handler.codec.ChannelDecoder;
  import io.aklivity.k3po.runtime.driver.internal.behavior.handler.event.AbstractEventHandler;
  
  public abstract class AbstractReadExtHandler extends AbstractEventHandler
  {
      protected final ChannelDecoder decoder;
  
      protected AbstractReadExtHandler(
          Set<ChannelEventKind> interestedEvents,
          Set<ChannelEventKind> expectedEvents,
          ChannelDecoder decoder)
      {
          super(interestedEvents, expectedEvents);
          this.decoder = requireNonNull(decoder, "decoder");
      }
  
      protected AbstractReadExtHandler(
          Set<ChannelEventKind> expectedEvents,
          ChannelDecoder decoder)
      {
          super(expectedEvents);
          this.decoder = requireNonNull(decoder, "decoder");
      }
  
      protected final void doReadExtension(
          ChannelHandlerContext ctx)
      {
          Channel channel = ctx.getChannel();
          ChannelFuture handlerFuture = getHandlerFuture();
  
          try
          {
              if (!handlerFuture.isDone() &&
                  decoder.decode(channel))
              {
                  handlerFuture.setSuccess();
              }
          }
          catch (Exception e)
          {
              handlerFuture.setFailure(e);
          }
      }
  
      @Override
      protected StringBuilder describe(StringBuilder sb)
      {
          return sb.append(format("read %s", decoder));
      }
  }
  