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.catalog;
  
  import org.agrona.DirectBuffer;
  
  import io.aklivity.zilla.runtime.engine.model.function.ValueConsumer;
  
  public interface CatalogHandler
  {
      int NO_SCHEMA_ID = 0;
      int NO_VERSION_ID = 0;
  
      @FunctionalInterface
      interface Decoder
      {
          Decoder IDENTITY = (traceId, bindingId, schemaId, data, index, length, next) ->
          {
              next.accept(data, index, length);
              return length;
          };
  
          int accept(
              long traceId,
              long bindingId,
              int schemaId,
              DirectBuffer data,
              int index,
              int length,
              ValueConsumer next);
      }
  
      @FunctionalInterface
      interface Encoder
      {
          Encoder IDENTITY = (traceId, bindingId, schemaId, data, index, length, next) ->
          {
              next.accept(data, index, length);
              return length;
          };
  
          int accept(
              long traceId,
              long bindingId,
              int schemaId,
              DirectBuffer data,
              int index,
              int length,
              ValueConsumer next);
      }
  
      default int register(
          String subject,
          String schema)
      {
          return NO_VERSION_ID;
      }
  
      default int[] unregister(
          String subject)
      {
          return new int[0];
      }
  
      String resolve(
          int schemaId);
  
      int resolve(
          String subject,
          String version);
  
      default int resolve(
          DirectBuffer data,
          int index,
          int length)
      {
          return NO_SCHEMA_ID;
      }
  
      default int decode(
          long traceId,
          long bindingId,
          DirectBuffer data,
          int index,
          int length,
          ValueConsumer next,
          Decoder decoder)
      {
          return decoder.accept(traceId, bindingId, NO_SCHEMA_ID, data, index, length, next);
      }
  
      default int encode(
          long traceId,
          long bindingId,
          int schemaId,
          DirectBuffer data,
          int index,
          int length,
          ValueConsumer next,
          Encoder encoder)
      {
          return encoder.accept(traceId, bindingId, schemaId, data, index, length, next);
      }
  
      default int encodePadding(
          int length)
      {
          return 0;
      }
  
      default int decodePadding(
          DirectBuffer data,
          int index,
          int length)
      {
          return 0;
      }
  
      default String location()
      {
          throw new UnsupportedOperationException("location");
      }
  }
  