LoggingNetSocket.java

/*
** Module   : LoggingNetSocket.java
** Abstract : Logging wrapper for different implementation of the NetSocket interface
**
** Copyright (c) 2016-2023, Golden Code Development Corporation.
**
** -#- -I- --Date--  ---------------------------------------Description---------------------------------------
** 001 IAS 20160805  Initial version
** 002 IAS 20200805  Improve logging
** 003 GBB 20230512  Logging methods replaced by CentralLogger/ConversionStatus.
*/ 
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
** 
** Additional terms under GNU Affero GPL version 3 section 7:
** 
**   Under Section 7 of the GNU Affero GPL version 3, the following additional
**   terms apply to the works covered under the License.  These additional terms
**   are non-permissive additional terms allowed under Section 7 of the GNU
**   Affero GPL version 3 and may not be removed by you.
** 
**   0. Attribution Requirement.
** 
**     You must preserve all legal notices or author attributions in the covered
**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
**     credit already included within the covered work.
** 
**   1. No License To Use Trademarks.
** 
**     This license does not grant any license or rights to use the trademarks
**     Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
**     of Golden Code Development Corporation. You are not authorized to use the
**     name Golden Code, FWD, or the names of any author or contributor, for
**     publicity purposes without written authorization.
** 
**   2. No Misrepresentation of Affiliation.
** 
**     You may not represent yourself as Golden Code Development Corporation or FWD.
** 
**     You may not represent yourself for publicity purposes as associated with
**     Golden Code Development Corporation, FWD, or any author or contributor to
**     the covered work, without written authorization.
** 
**   3. No Misrepresentation of Source or Origin.
** 
**     You may not represent the covered work as solely your work.  All modified
**     versions of the covered work must be marked in a reasonable way to make it
**     clear that the modified work is not originating from Golden Code Development
**     Corporation or FWD.  All modified versions must contain the notices of
**     attribution required in this license.
*/

package com.goldencode.p2j.net;

import java.io.*;
import java.net.*;
import java.util.*;

import javax.net.ssl.*;

/**
 * Logging wrapper for different implementation of the NetSocket interface
 */
public class LoggingNetSocket
implements NetSocket
{
   /** Underlying NetSocket implementation */
   private final NetSocket socket;

   /**
    * Constructor
    * 
    * @param socket
    *        underlying NetSocket implementation
    */
   public LoggingNetSocket(NetSocket socket)
   {
      super();
      this.socket = socket;
      tracef("Creating %s: %s -> %s", 
                                 socket.getClass().getSimpleName(), 
                                 socket.getLocalSockAddr(),
                                 socket.getRemoteSockAddr());
   }

   /**
    * Gets the SSL session.
    *
    * @return   The SSL session or <code>null</code> if the socket is not
    *           secure.
    */
   @Override
   public SSLSession getSession()
   {
      return socket.getSession();
   }

   /**
    * Closes the socket. 
    */
   @Override
   public void close()
   {
      socket.close();
   }

   /**
    * Reports if the socket is closed (and thus can no longer be used).
    *
    * @return   <code>true</code> if the socket is closed. 
    */
   @Override
   public boolean isClosed()
   {
      return socket.isClosed();
   }

   /**
    * Access the address of the local system, through which we are connecting.
    *
    * @return   The local address.
    */
   @Override
   public InetAddress getLocalAddr()
   {
      return socket.getLocalAddr();
   }

   /**
    * Access the address of the local system, through which we are connecting.
    *
    * @return   The local socket address.
    */
   @Override
   public InetSocketAddress getLocalSockAddr()
   {
      return socket.getLocalSockAddr();
   }

   /**
    * Access the address of the remote system, to which we are connecting.
    *
    * @return   The remote address.
    */
   @Override
   public InetAddress getRemoteAddr()
   {
      return socket.getRemoteAddr();
   }

   /**
    * Access the address of the remote system, to which we are connecting.
    *
    * @return   The remote socket address.
    */
   public InetSocketAddress getRemoteSockAddr()
   {
      return socket.getRemoteSockAddr();
   }

   /**
    * Gets the list with added session listeners. May return <code>null</code> if none has
    * been added.
    *
    * @return  The current session listener.
    */
   @Override
   public List<SessionListener> getSessionListeners()
   {
      return socket.getSessionListeners();
   }

   /**
    * Adds a session listener.
    *
    * @param   sessionListener
    *          A session listener to be added.
    */
   @Override
   public void addSessionListener(SessionListener sessionListener)
   {
      socket.addSessionListener(sessionListener);
   }

   /**
    * Flush the output if applicable 
    */ 
   @Override
   public void flush() 
   throws IOException
   {
      traceln("flush");
      socket.flush();
   }

   /**
    * Write byte array to the output
    *  
    * @param data
    *        byte array
    */
   @Override
   public void write(byte[] data) 
   throws IOException
   {
      tracef("write(byte[%s])", data.length);
      socket.write(data);
   }

   /**
    * Read the next portion of raw data (byte array) to the output
    * 
    * @return byte array
    */
   @Override
   public byte[] read()
   throws IOException
   {
      byte[] b = socket.read();
      tracef("read(): byte[%s]", b.length);
      return b;
   }

   /**
    * Read the integer from the input
    *  
    * @return integer data
    */
   @Override
   public int readInt()
   throws IOException
   {
      int i = socket.readInt();
      tracef("readInt(): %s", i);
      return i;
   }

   /**
    * Write an integer to the output
    *  
    * @param val
    *        integer data to be written
    */
   @Override
   public void writeInt(int val)
   throws IOException
   {
      tracef("writeInt(%s)", val);
      socket.writeInt(val);
   }

   /**
    * Write a byte sequence to the output
    *  
    * @param bytes
    *        byte sequence to be written
    */
   @Override
   public void writeBytes(byte[] bytes)
   throws IOException
   {
      tracef("writeBytes(byte[%s])", bytes.length);
      socket.writeBytes(bytes);
   }

  /**
   * Read the byte sequence from the input
   *  
   * @param bytes
   *        byte array to be filled by the input bytes 
   */
   @Override
   public void readBytes(byte[] bytes)
   throws IOException
   {
      tracef("readBytes(): byte[%s]", bytes.length);
      socket.readBytes(bytes);
   }

   /**
    * Write a boolean to the output
    *  
    * @param val
    *        boolean data to be written
    */
   @Override
   public void writeBoolean(boolean val)
   throws IOException
   {
      tracef("writeBoolean(%s)", val);
      socket.writeBoolean(val);
   }

   /**
    * Read the boolean from the input
    *  
    * @return boolean data
    */
   @Override
   public boolean readBoolean()
   throws IOException
   {
      boolean b = socket.readBoolean();
      tracef("readBoolean(): %s", b);
      return b;
   }

   /**
    * Read the UTF string from the input
    *  
    * @return UTF string
    */
   @Override
   public String readUTF()
   throws IOException
   {
      String s = socket.readUTF();
      tracef("readUTF(): '%s'", s);
      return s;
   }

   /**
    * Write an UTF String to the output
    *  
    * @param val
    *        UTF String to be written
    */
   @Override
   public void writeUTF(String val)
   throws IOException
   {
      tracef("writeUTF('%s')", val);
      socket.writeUTF(val);
   }
}