#include <FILE_Parser.h>
Inheritance diagram for TAO_FILE_Parser:
Public Member Functions | |
| virtual | ~TAO_FILE_Parser (void) |
| The destructor. | |
| virtual int | match_prefix (const char *ior_string) const |
| virtual CORBA::Object_ptr | parse_string (const char *ior, CORBA::ORB_ptr orb) throw (CORBA::SystemException) |
This class implements the <file:> IOR format. It is dynamically loaded by the ORB and used to open a file, read its contents and then interepret the file as an IOR (that can be in any valid format).
Definition at line 38 of file FILE_Parser.h.
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The destructor.
Definition at line 25 of file FILE_Parser.cpp.
00026 {
00027 }
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Return 1 if ior_string starts with a prefix known to this IOR parser Implements TAO_IOR_Parser. Definition at line 31 of file FILE_Parser.cpp. References file_prefix, and ACE_OS::strncmp().
00032 {
00033 return (ACE_OS::strncmp (ior_string,
00034 ::file_prefix,
00035 sizeof (::file_prefix) - 1) == 0);
00036 }
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Parse the ior argument and return an object reference. The call may raise the standard system exceptions (NO_MEMORY, INV_OBJREF, etc.) Implements TAO_IOR_Parser. Definition at line 39 of file FILE_Parser.cpp. References CORBA::Object::_nil(), ACE_CATCHANY, ACE_CHECK_RETURN, ACE_ENDTRY, ACE_ENV_ARG_PARAMETER, ACE_RE_THROW, ACE_TEXT, ACE_TEXT_CHAR_TO_TCHAR, ACE_TRY, ACE_TRY_CHECK, ACE_Read_Buffer::alloc(), ACE_OS::fopen(), ACE_Allocator::free(), CORBA::Object_ptr, CORBA::ORB_ptr, and ACE_Read_Buffer::read().
00043 {
00044 // Skip the prefix, we know it is there because this method in only
00045 // called if <match_prefix> returns 1.
00046 const char *filename =
00047 ior + sizeof (::file_prefix)+1;
00048
00049 FILE* file = ACE_OS::fopen (ACE_TEXT_CHAR_TO_TCHAR (filename),
00050 ACE_TEXT("r"));
00051
00052 if (file == 0)
00053 return CORBA::Object::_nil ();
00054
00055 ACE_Read_Buffer reader (file, 1);
00056
00057 char* string = reader.read ();
00058
00059 if (string == 0)
00060 return CORBA::Object::_nil ();
00061
00062 CORBA::Object_ptr object = CORBA::Object::_nil ();
00063 ACE_TRY
00064 {
00065 object = orb->string_to_object (string ACE_ENV_ARG_PARAMETER);
00066 ACE_TRY_CHECK;
00067
00068 reader.alloc ()->free (string);
00069 }
00070 ACE_CATCHANY
00071 {
00072 reader.alloc ()->free (string);
00073 ACE_RE_THROW;
00074 }
00075 ACE_ENDTRY;
00076 ACE_CHECK_RETURN (CORBA::Object::_nil ());
00077
00078 return object;
00079 }
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1.3.6