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.model;
  
  import org.agrona.DirectBuffer;
  
  import io.aklivity.zilla.runtime.engine.model.function.ValueConsumer;
  
  public interface ConverterHandler
  {
      int FLAGS_COMPLETE = 0x03;
      int VALIDATION_FAILURE = -1;
  
      ConverterHandler NONE = (traceId, bindingId, data, index, length, next) ->
      {
          next.accept(data, index, length);
          return length;
      };
  
      @FunctionalInterface
      interface FieldVisitor
      {
          void visit(
              DirectBuffer buffer,
              int index,
              int length);
      }
  
      default void extract(
          String path)
      {
      }
  
      int convert(
          long traceId,
          long bindingId,
          DirectBuffer data,
          int index,
          int length,
          ValueConsumer next);
  
      default int extractedLength(
          String path)
      {
          return 0;
      }
  
      default void extracted(
          String path,
          FieldVisitor visitor)
      {
      }
  
      default int padding(
          DirectBuffer data,
          int index,
          int length)
      {
          return 0;
      }
  }
  