TAO/tao/Codeset_Manager.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /*
   5  *  @file Codeset_Manager.h
   6  *
   7  *  Interface for the TAO CodeSet Manager.
   8  *
   9  *  @author  Mahesh Vedantam <mahesh@ociweb.com>
  10  */
  11 //=============================================================================
  12
  13 #ifndef TAO_CODESET_MANAGER_H
  14 #define TAO_CODESET_MANAGER_H
  15
  16 #include /**/ "ace/pre.h"
  17
  18 #include /**/ "tao/TAO_Export.h"
  19
  20 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  21 # pragma once
  22 #endif /* ACE_LACKS_PRAGMA_ONCE */
  23
  24 #include "tao/CONV_FRAMEC.h"
  25
  26 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  27 class ACE_WChar_Codeset_Translator;
  28 ACE_END_VERSIONED_NAMESPACE_DECL
  29
  30 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
  31
  32 class TAO_Profile;
  33 class TAO_Transport;
  34 class TAO_Operation_Details;
  35
  36 class TAO_ServerRequest;
  37 class TAO_Tagged_Components;
  38 class TAO_Codeset_Translator_Base;
  39 class TAO_Codeset_Descriptor_Base;
  40
  41
  42 // ****************************************************************
  43
  44 /**
  45  * @class TAO_Codeset_Manager
  46  *
  47  * @brief The encapsulation of logic for codeset negotiation
  48  *
  49  * The Codeset Manager is owned by the ORB_Core, initialized through Resource
  50  * Factory configuration options. The codeset manager participates in profile
  51  * creation by servers and connection establishment by clients. The involvement
  52  * is necessary to supply a codeset component to the profile including for both
  53  * chars and wide chars the native code set and any conversion code sets for
  54  * which translators are available. The codeset manager is also responsible for
  55  * determining the transmission codesets based an the local and remote codeset
  56  * information. The transmission codesets are communicated via a service
  57  * context attached to the first request sent on the new connection.
  58  */
  59 class TAO_Export TAO_Codeset_Manager
  60 {
  61
  62 public:
  63
  64   /// Destructor.
  65   virtual ~TAO_Codeset_Manager (void);
  66
  67   /// Called by an object of TAO_Acceptor to set NCS and CCS values for
  68   /// Char/Wchar in to the Object Reference.
  69   virtual void set_codeset (TAO_Tagged_Components&) const = 0;
  70
  71   /// Called from an object of "TAO_GIOP_Invocation" to set TCS on the
  72   /// Transport
  73   virtual void set_tcs (TAO_Profile &theProfile, TAO_Transport &) = 0;
  74
  75   /// Called from an Object of TAO_Messaging for every request at server side
  76   /// to process service context and set TCS for Char/WChar
  77   virtual void process_service_context (TAO_ServerRequest &) = 0;
  78
  79   /// Called by a client object to generate service context
  80   /// at this time Transport has the TCS for Char and WChar
  81   virtual void generate_service_context (TAO_Operation_Details&, TAO_Transport & ) = 0;
  82
  83   virtual TAO_Codeset_Translator_Base * get_char_trans (CONV_FRAME::CodeSetId tcs) = 0;
  84
  85   virtual TAO_Codeset_Translator_Base * get_wchar_trans (CONV_FRAME::CodeSetId tcs) = 0;
  86
  87   virtual void open (TAO_ORB_Core& core) = 0;
  88
  89   virtual TAO_Codeset_Descriptor_Base *char_codeset_descriptor (void) = 0;
  90   virtual TAO_Codeset_Descriptor_Base *wchar_codeset_descriptor (void) = 0;
  91
  92   virtual void get_ncs (CONV_FRAME::CodeSetId &ncsc,
  93                         CONV_FRAME::CodeSetId &ncsw) = 0;
  94 };
  95
  96 TAO_END_VERSIONED_NAMESPACE_DECL
  97
  98 #include /**/ "ace/post.h"
  99
 100 #endif /* TAO_CODESET_MANAGER_H */