1 karl  1.16 //%2006////////////////////////////////////////////////////////////////////////

  2 chip  1.1  //

  3 karl  1.7  // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
  4            // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
  5            // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;

  6 karl  1.4  // IBM Corp.; EMC Corporation, The Open Group.

  7 karl  1.7  // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
  8            // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

  9 karl  1.11 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
 10            // EMC Corporation; VERITAS Software Corporation; The Open Group.

 11 karl  1.16 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
 12            // EMC Corporation; Symantec Corporation; The Open Group.

 13 chip  1.1  //
 14            // Permission is hereby granted, free of charge, to any person obtaining a copy
 15            // of this software and associated documentation files (the "Software"), to
 16            // deal in the Software without restriction, including without limitation the
 17            // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 18            // sell copies of the Software, and to permit persons to whom the Software is
 19            // furnished to do so, subject to the following conditions:

 20 karl  1.4  // 

 21 chip  1.1  // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
 22            // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
 23            // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 24            // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 25            // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 26            // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 27            // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 28            // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 29            //
 30            //==============================================================================
 31            //
 32            // Author: Chip Vincent (cvincent@us.ibm.com)
 33            //
 34            // Modified By:

 35 kumpf 1.13 //              Nag Boranna, Hewlett-Packard Company (nagaraja_boranna@hp.com)
 36            //              Yi Zhou, Hewlett-Packard Company (yi_zhou@hp.com)
 37            //              Mike Day, IBM (mdday@us.ibm.com)
 38            //              Adrian Schuur, IBM (schuur@de.ibm.com)

 39 joyce.j 1.10 //              Josephine Eskaline Joyce (jojustin@in.ibm.com) for PEP#101

 40 kumpf   1.13 //              Sean Keenan, Hewlett-Packard Company <sean.keenan@hp.com>
 41              //              Roger Kumpf, Hewlett-Packard Company <roger_kumpf@hp.com>

 42 aruran.ms 1.15 //              Aruran, IBM (ashanmug@in.ibm.com) for Bug#4585

 43 chip      1.1  //
 44                //%/////////////////////////////////////////////////////////////////////////////
 45                
 46                #include "ProviderModule.h"
 47                
 48                #include <Pegasus/Common/FileSystem.h>

 49 kumpf     1.13 #include <Pegasus/Common/MessageLoader.h>

 50 chip      1.3  
 51                #ifdef PEGASUS_OS_OS400

 52 kumpf     1.13 # include "CreateProviderOS400SystemState.h"

 53 chip      1.3  #endif

 54 chip      1.1  

 55 kumpf     1.13 

 56 chip      1.1  PEGASUS_NAMESPACE_BEGIN
 57                

 58 kumpf     1.13 ProviderModule::ProviderModule(const String& fileName)

 59 chip      1.1      : _fileName(fileName),

 60 kumpf     1.13       _refCount(0),
 61                      _library(0)

 62 chip      1.1  {
 63                }
 64                

 65 kumpf     1.13 ProviderModule::~ProviderModule()

 66 chip      1.1  {

 67 aruran.ms 1.15     if (_library != 0)
 68                    {
 69                        System::unloadDynamicLibrary(_library);
 70                        _library = 0;
 71                        _refCount = 0;
 72                    }

 73 chip      1.1  }
 74                

 75 kumpf     1.13 CIMProvider* ProviderModule::load(const String& providerName)

 76 chip      1.1  {

 77 kumpf     1.13     CIMProvider* provider = 0;

 78 chip      1.1  
 79                    // dynamically load the provider library

 80 kumpf     1.13     if (_library == 0)

 81 chip      1.1      {

 82 kumpf     1.13         _library =
 83                            System::loadDynamicLibrary((const char *)_fileName.getCString());

 84 chip      1.1  

 85 kumpf     1.13         if (_library == 0)
 86                        {
 87                            // ATTN: does unload() need to be called?
 88                            throw Exception(MessageLoaderParms(
 89                                "ProviderManager.ProviderModule.CANNOT_LOAD_LIBRARY",
 90                                "ProviderLoadFailure ($0:$1):Cannot load library, error: $2",
 91                                _fileName,
 92                                providerName,
 93                                System::dynamicLoadError()));
 94                        }

 95 chip      1.1      }
 96                

 97 kumpf     1.13     // find library entry point

 98 chip      1.1      CIMProvider * (*createProvider)(const String &) = 0;
 99                

100 kumpf     1.13     createProvider = (CIMProvider* (*)(const String&))System::loadDynamicSymbol(

101 chip      1.1          _library, "PegasusCreateProvider");
102                

103 kumpf     1.13     if (createProvider == 0)

104 chip      1.1      {

105 kumpf     1.13         throw Exception(MessageLoaderParms(
106                            "ProviderManager.ProviderModule.ENTRY_POINT_NOT_FOUND",

107 chip      1.3              "ProviderLoadFailure ($0:$1):entry point not found.",

108 chip      1.1              _fileName,
109                            providerName));
110                    }
111                
112                    // invoke the provider entry point

113 chip      1.3  #ifndef PEGASUS_OS_OS400

114 chip      1.1      provider = createProvider(providerName);

115 chip      1.3  #else
116                    // On OS/400, need to call a layer of code that does platform-specific
117                    // checks before calling the provider

118 kumpf     1.13     provider = OS400_CreateProvider(
119                        providerName.getCString(), createProvider, _fileName);

120 chip      1.3  #endif
121                

122 chip      1.1      // test for the appropriate interface
123                    if(dynamic_cast<CIMProvider *>(provider) == 0)
124                    {

125 kumpf     1.13         throw Exception(MessageLoaderParms(
126                            "ProviderManager.ProviderModule.PROVIDER_IS_NOT_A",

127 chip      1.3              "ProviderLoadFailure ($0:$1):provider is not a CIMProvider.",

128 chip      1.1              _fileName,

129 chip      1.3              providerName));

130 chip      1.1      }

131 kumpf     1.13     _refCount++;

132 chip      1.1      return(provider);
133                }
134                

135 kumpf     1.13 void ProviderModule::unloadModule()

136 chip      1.1  {

137 mike      1.14     if (_refCount.decAndTestIfZero())

138 chip      1.1      {

139 kumpf     1.13         if (_library != 0)

140 david.dillard 1.8          {
141                                System::unloadDynamicLibrary(_library);
142                                _library = 0;
143                            }

144 chip          1.1      }
145                    }
146                    
147                    PEGASUS_NAMESPACE_END