//%LICENSE////////////////////////////////////////////////////////////////
//
// Licensed to The Open Group (TOG) under one or more contributor license
// agreements.  Refer to the OpenPegasusNOTICE.txt file distributed with
// this work for additional information regarding copyright ownership.
// Each contributor licenses this file to you under the OpenPegasus Open
// Source License; you may not use this file except in compliance with the
// License.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//////////////////////////////////////////////////////////////////////////
//
//%/////////////////////////////////////////////////////////////////////////////

#include "CMPI_Version.h"

#include "CMPIProviderModule.h"

#include <Pegasus/Common/FileSystem.h>
#include <Pegasus/Common/MessageLoader.h> //l10n
#include <Pegasus/Config/ConfigManager.h>
#include <Pegasus/ProviderManager2/CMPI/CMPIProvider.h>
#include <Pegasus/ProviderManager2/CMPI/CMPIProviderManager.h>

PEGASUS_USING_STD;
PEGASUS_NAMESPACE_BEGIN

CMPIProviderModule::CMPIProviderModule(const String & fileName)
{
    PEG_METHOD_ENTER(
        TRC_CMPIPROVIDERINTERFACE,
        "CMPIProviderModule::CMPIProviderModule()");

    String resolvedFileName;

#ifdef PEGASUS_OS_TYPE_WINDOWS
    if (fileName[1] != ':')
#else
    if (fileName[0]!='/')
#endif
        resolvedFileName=ProviderManager::_resolvePhysicalName(fileName);
    else resolvedFileName=fileName;

    _library = DynamicLibrary(resolvedFileName);
    PEG_METHOD_EXIT();
}

CMPIProviderModule::~CMPIProviderModule()
{
}

ProviderVector CMPIProviderModule::load(const String & providerName)
{
    PEG_METHOD_ENTER(TRC_CMPIPROVIDERINTERFACE, "CMPIProviderModule::load()");
    String realProviderName(providerName);
    realProviderName.remove(0,1);

    if (!_library.load())
    {

        throw Exception(MessageLoaderParms(
            "ProviderManager.CMPI.CMPIProviderModule.CANNOT_LOAD_LIBRARY",
            "ProviderLoadFailure: ($0:$1):Cannot load library, error: $2",
            _library.getFileName(),
            realProviderName,
            _library.getLoadErrorMessage()));
    }

    char symbolName[512];
    CString mName=realProviderName.getCString();
    ProviderVector miVector;
    memset(&miVector,0,sizeof(ProviderVector));
    int specificMode=0;

    if ((miVector.createGenInstMI=(CREATE_GEN_INST_MI)
        _library.getSymbol(_Generic_Create_InstanceMI)))
    {
        if (miVector.createGenInstMI)
            miVector.miTypes|=CMPI_MIType_Instance;
        miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_InstanceMI);
    if ((miVector.createInstMI=(CREATE_INST_MI)
        _library.getSymbol(symbolName)))
    {
        if (miVector.createInstMI)
            miVector.miTypes|=CMPI_MIType_Instance;
        specificMode=1;
    }


    if ((miVector.createGenAssocMI=(CREATE_GEN_ASSOC_MI)
        _library.getSymbol(_Generic_Create_AssociationMI)))
    {
        if (miVector.createGenAssocMI)
            miVector.miTypes|=CMPI_MIType_Association;
        miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_AssociationMI);
    if ((miVector.createAssocMI=(CREATE_ASSOC_MI)
        _library.getSymbol(symbolName)))
    {
        if (miVector.createAssocMI)
            miVector.miTypes|=CMPI_MIType_Association;
        specificMode=1;
    }


    if ((miVector.createGenMethMI=(CREATE_GEN_METH_MI)
        _library.getSymbol(_Generic_Create_MethodMI)))
    {
        if (miVector.createGenMethMI)
            miVector.miTypes|=CMPI_MIType_Method;
        miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_MethodMI);
    if ((miVector.createMethMI=(CREATE_METH_MI)
        _library.getSymbol(symbolName)))
    {
        if (miVector.createMethMI)
            miVector.miTypes|=CMPI_MIType_Method;
        specificMode=1;
    }


    if ((miVector.createGenPropMI=(CREATE_GEN_PROP_MI)
        _library.getSymbol(_Generic_Create_PropertyMI)))
    {
        if (miVector.createGenPropMI)
            miVector.miTypes|=CMPI_MIType_Property;
        miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_PropertyMI);
    if ((miVector.createPropMI=(CREATE_PROP_MI)
        _library.getSymbol(symbolName)))
    {
        if (miVector.createPropMI)
            miVector.miTypes|=CMPI_MIType_Property;
        specificMode=1;
    }


    if ((miVector.createGenIndMI=(CREATE_GEN_IND_MI)
        _library.getSymbol(_Generic_Create_IndicationMI)))
    {
        if (miVector.createGenIndMI)
            miVector.miTypes|=CMPI_MIType_Indication;
        miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_IndicationMI);
    if ((miVector.createIndMI=(CREATE_IND_MI)
        _library.getSymbol(symbolName)))
    {
        if (miVector.createIndMI)
            miVector.miTypes|=CMPI_MIType_Indication;
        specificMode=1;
    }

    if (miVector.miTypes==0)
    {
        _library.unload();
        throw Exception(MessageLoaderParms(
            "ProviderManager.CMPI.CMPIProviderModule.WRONG_LIBRARY",
            "ProviderLoadFailure: ($0) Provider is not a CMPI style provider."
            " Cannot find $1_Create<mi-type>MI symbol.",
            _library.getFileName(),
            realProviderName));
    }

    if (miVector.genericMode && specificMode)
    {
        _library.unload();
        throw Exception(MessageLoaderParms(
            "ProviderManager.CMPI.CMPIProviderModule.CONFLICTING_CMPI_STYLE",
            "ProviderLoadFailure: ($0:$1) conflicting generic/specfic CMPI "
            "style provider.",
            _library.getFileName(),
            realProviderName));
    }

    PEG_METHOD_EXIT();
    return miVector;
}

void CMPIProviderModule::unloadModule()
{
    _library.unload();
}

PEGASUS_NAMESPACE_END