/*
    * ====================================================================
    * 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.http.testserver;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.net.Socket;
  import java.nio.charset.CharsetDecoder;
  import java.nio.charset.CharsetEncoder;
  import java.util.concurrent.atomic.AtomicLong;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.apache.http.Header;
  import org.apache.http.HttpRequest;
  import org.apache.http.HttpResponse;
  import org.apache.http.config.MessageConstraints;
  import org.apache.http.entity.ContentLengthStrategy;
  import org.apache.http.impl.DefaultBHttpServerConnection;
  import org.apache.http.io.HttpMessageParserFactory;
  import org.apache.http.io.HttpMessageWriterFactory;
  
  public class LoggingBHttpServerConnection extends DefaultBHttpServerConnection {
  
      private static final AtomicLong COUNT = new AtomicLong();
  
      private final String id;
      private final Log log;
      private final Log headerLog;
      private final Wire wire;
  
      public LoggingBHttpServerConnection(
              final int bufferSize,
              final int fragmentSizeHint,
              final CharsetDecoder charDecoder,
              final CharsetEncoder charEncoder,
              final MessageConstraints constraints,
              final ContentLengthStrategy incomingContentStrategy,
              final ContentLengthStrategy outgoingContentStrategy,
              final HttpMessageParserFactory<HttpRequest> requestParserFactory,
              final HttpMessageWriterFactory<HttpResponse> responseWriterFactory) {
          super(bufferSize, fragmentSizeHint, charDecoder, charEncoder, constraints,
                  incomingContentStrategy, outgoingContentStrategy,
                  requestParserFactory, responseWriterFactory);
          this.id = "http-incoming-" + COUNT.incrementAndGet();
          this.log = LogFactory.getLog(getClass());
          this.headerLog = LogFactory.getLog("org.apache.http.headers");
          this.wire = new Wire(LogFactory.getLog("org.apache.http.wire"), this.id);
      }
  
      public LoggingBHttpServerConnection(final int bufferSize) {
          this(bufferSize, bufferSize, null, null, null, null, null, null, null);
      }
  
      @Override
      public void close() throws IOException {
          if (this.log.isDebugEnabled()) {
              this.log.debug(this.id + ": Close connection");
          }
          super.close();
      }
  
      @Override
      public void shutdown() throws IOException {
          if (this.log.isDebugEnabled()) {
              this.log.debug(this.id + ": Shutdown connection");
          }
          super.shutdown();
      }
  
      @Override
      protected InputStream getSocketInputStream(final Socket socket) throws IOException {
          InputStream in = super.getSocketInputStream(socket);
         if (wire.isEnabled()) {
             in = new LoggingInputStream(in, wire);
         }
         return in;
     }
 
     @Override
     protected OutputStream getSocketOutputStream(final Socket socket) throws IOException {
         OutputStream out = super.getSocketOutputStream(socket);
         if (wire.isEnabled()) {
             out = new LoggingOutputStream(out, wire);
         }
         return out;
     }
 
     @Override
     protected void onRequestReceived(final HttpRequest request) {
         if (request != null && this.headerLog.isDebugEnabled()) {
             this.headerLog.debug(this.id + " >> " + request.getRequestLine().toString());
             final Header[] headers = request.getAllHeaders();
             for (final Header header : headers) {
                 this.headerLog.debug(this.id + " >> " + header.toString());
             }
         }
     }
 
     @Override
     protected void onResponseSubmitted(final HttpResponse response) {
         if (response != null && this.headerLog.isDebugEnabled()) {
             this.headerLog.debug(this.id + " << " + response.getStatusLine().toString());
             final Header[] headers = response.getAllHeaders();
             for (final Header header : headers) {
                 this.headerLog.debug(this.id + " << " + header.toString());
             }
         }
     }
 
 }