/*
    * ====================================================================
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.hc.core5.http.impl.io;
  
  import java.io.IOException;
  import java.io.InputStream;
  
  import org.apache.hc.core5.http.ClassicHttpRequest;
  import org.apache.hc.core5.http.ConnectionClosedException;
  import org.apache.hc.core5.http.HttpException;
  import org.apache.hc.core5.http.HttpRequestFactory;
  import org.apache.hc.core5.http.MessageConstraintException;
  import org.apache.hc.core5.http.RequestHeaderFieldsTooLargeException;
  import org.apache.hc.core5.http.config.Http1Config;
  import org.apache.hc.core5.http.io.SessionInputBuffer;
  import org.apache.hc.core5.http.message.LineParser;
  import org.apache.hc.core5.http.message.RequestLine;
  import org.apache.hc.core5.util.CharArrayBuffer;
  
  /**
   * HTTP request parser that obtain its input from an instance
   * of {@link org.apache.hc.core5.http.io.SessionInputBuffer}.
   *
   * @since 4.2
   */
  public class DefaultHttpRequestParser extends AbstractMessageParser<ClassicHttpRequest> {
  
      private final HttpRequestFactory<ClassicHttpRequest> requestFactory;
  
      /**
       * Creates new instance of DefaultHttpRequestParser.
       *
       * @param lineParser the line parser. If {@code null}
       *   {@link org.apache.hc.core5.http.message.LazyLineParser#INSTANCE} will be used.
       * @param requestFactory the response factory. If {@code null}
       *   {@link DefaultClassicHttpRequestFactory#INSTANCE} will be used.
       * @param http1Config the message http1Config. If {@code null}
       *   {@link Http1Config#DEFAULT} will be used.
       *
       * @since 4.3
       */
      public DefaultHttpRequestParser(
              final LineParser lineParser,
              final HttpRequestFactory<ClassicHttpRequest> requestFactory,
              final Http1Config http1Config) {
          super(lineParser, http1Config);
          this.requestFactory = requestFactory != null ? requestFactory : DefaultClassicHttpRequestFactory.INSTANCE;
      }
  
      /**
       * @since 4.3
       */
      public DefaultHttpRequestParser(final Http1Config http1Config) {
          this(null, null, http1Config);
      }
  
      /**
       * @since 4.3
       */
      public DefaultHttpRequestParser() {
          this(Http1Config.DEFAULT);
      }
  
      @Override
      protected IOException createConnectionClosedException() {
          return new ConnectionClosedException("Client closed connection");
      }
  
      @Override
      public ClassicHttpRequest parse(
              final SessionInputBuffer buffer, final InputStream inputStream) throws IOException, HttpException {
          try {
              return super.parse(buffer, inputStream);
          } catch (final MessageConstraintException ex) {
             throw new RequestHeaderFieldsTooLargeException(ex.getMessage(), ex);
         }
     }
 
     @Override
     protected ClassicHttpRequest createMessage(final CharArrayBuffer buffer) throws IOException, HttpException {
         final RequestLine requestLine = getLineParser().parseRequestLine(buffer);
         final ClassicHttpRequest request = this.requestFactory.newHttpRequest(requestLine.getMethod(), requestLine.getUri());
         request.setVersion(requestLine.getProtocolVersion());
         return request;
     }
 
 }