applayerprotocols/httptransportfw/core/CHeaderCodec.cpp
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     1 // Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 // System includes
       
    17 #include <e32std.h>
       
    18 
       
    19 // User includes
       
    20 
       
    21 
       
    22 // Class signature
       
    23 #include <http/framework/cheadercodec.h>
       
    24 
       
    25 
       
    26 EXPORT_C
       
    27 CHeaderCodec::~CHeaderCodec()
       
    28 	{
       
    29 	delete iWriter;
       
    30 	delete iReader;
       
    31 	delete iDelegateCodec;
       
    32 	}
       
    33 
       
    34 EXPORT_C
       
    35 void CHeaderCodec::EncodeHeaderL(RHeaderField& aHeader) const
       
    36 	{
       
    37 	RStringF fieldName = aHeader.Name();
       
    38 	if (CanEncode(fieldName))
       
    39 		iWriter->EncodeHeaderL(aHeader);
       
    40 	else
       
    41 		{
       
    42 		// our reader can't deal with this header.  Identify and delegate to a different codec
       
    43 		if (!iDelegateCodec)
       
    44 			// try and find a delegate codec as we don't yet have one
       
    45 			iDelegateCodec = FindDelegateCodecL(fieldName);
       
    46 		
       
    47 		if (iDelegateCodec)
       
    48 			iDelegateCodec->EncodeHeaderL(aHeader);
       
    49 		else
       
    50 			// we couldn't find a codec that supports encoding this header
       
    51 			User::Leave(KErrNotSupported);
       
    52 		}
       
    53 	}
       
    54 
       
    55 EXPORT_C
       
    56 void CHeaderCodec::DecodeHeaderL(RHeaderField& aHeader) const
       
    57 	{
       
    58 	RStringF fieldName = aHeader.Name();
       
    59 	if (CanDecode(fieldName))
       
    60 		iReader->DecodeHeaderL(aHeader);
       
    61 	else
       
    62 		{
       
    63 		if (!iDelegateCodec)
       
    64 			// try and find a delegate codec as we don't yet have one
       
    65 			iDelegateCodec = FindDelegateCodecL(fieldName);
       
    66 
       
    67 		if (iDelegateCodec)
       
    68 			iDelegateCodec->DecodeHeaderL(aHeader);
       
    69 		else
       
    70 			// we couldn't find a codec that supports decoding this header
       
    71 			User::Leave(KErrNotSupported);
       
    72 		}
       
    73 	}
       
    74 
       
    75 EXPORT_C
       
    76 CHeaderCodec::CHeaderCodec()
       
    77 	{
       
    78 	}
       
    79 
       
    80 EXPORT_C
       
    81 void CHeaderCodec::ConstructL()
       
    82 	{
       
    83 	}
       
    84 
       
    85 EXPORT_C
       
    86 CHeaderWriter::~CHeaderWriter()
       
    87 	{
       
    88 	}
       
    89 
       
    90 EXPORT_C
       
    91 CHeaderWriter::CHeaderWriter()
       
    92 	{
       
    93 	}
       
    94 
       
    95 EXPORT_C
       
    96 void CHeaderWriter::ConstructL()
       
    97 	{
       
    98 	}
       
    99 
       
   100 
       
   101 EXPORT_C
       
   102 CHeaderReader::~CHeaderReader()
       
   103 	{
       
   104 	}
       
   105 
       
   106 EXPORT_C
       
   107 CHeaderReader::CHeaderReader()
       
   108 	{
       
   109 	}
       
   110 
       
   111 EXPORT_C
       
   112 void CHeaderReader::ConstructL()
       
   113 	{
       
   114 	}
       
   115 
       
   116