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/*
 * Copyright 2013-2020 The OpenZipkin Authors
 *
 * Licensed 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 brave.http;

import brave.ErrorParser;
import brave.SpanCustomizer;
import brave.propagation.CurrentTraceContext;

/** Added to allow us to keep compatibility with deprecated {@link HttpTracing#serverParser()} */
@Deprecated final class HttpServerParserAdapter extends HttpServerParser {
  final HttpRequestParser requestParser;
  final HttpResponseParser responseParser;
  final CurrentTraceContext currentTraceContext;
  final ErrorParser errorParser;

  HttpServerParserAdapter(
    HttpRequestParser requestParser,
    HttpResponseParser responseParser,
    CurrentTraceContext currentTraceContext,
    ErrorParser errorParser
  ) {
    this.requestParser = requestParser;
    this.responseParser = responseParser;
    this.currentTraceContext = currentTraceContext;
    this.errorParser = errorParser;
  }

  @Override protected ErrorParser errorParser() {
    return errorParser;
  }

  @Override
  public  void request(HttpAdapter adapter, Req req, SpanCustomizer customizer) {
    HttpRequest request;
    if (req instanceof HttpServerRequest) {
      request = new HttpServerAdapters.FromRequestAdapter<>((HttpServerAdapter) adapter, req);
    } else if (adapter instanceof HttpServerAdapters.ToRequestAdapter) {
      request = ((HttpServerAdapters.ToRequestAdapter) adapter).delegate;
    } else {
      throw new AssertionError("programming bug");
    }
    requestParser.parse(request, currentTraceContext.get(), customizer);
  }

  @Override public  void response(HttpAdapter adapter, Resp res, Throwable error,
    SpanCustomizer customizer) {
    HttpResponse response;
    if (res instanceof HttpServerResponse) {
      response = new HttpServerAdapters.FromResponseAdapter<>((HttpServerAdapter) adapter, res);
    } else if (adapter instanceof HttpServerAdapters.ToResponseAdapter) {
      response = ((HttpServerAdapters.ToResponseAdapter) adapter).delegate;
    } else {
      throw new AssertionError("programming bug");
    }
    responseParser.parse(response, currentTraceContext.get(), customizer);
  }
}