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BUG#: 7609
TITLE: Pluggable Provider Managers

DESCRIPTION:
ProviderManagers are now detected dynamically, instead of a hard-coded
list of ProviderManagers.

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#ifndef Pegasus_BasicProviderManagerRouter_h
#define Pegasus_BasicProviderManagerRouter_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/ArrayInternal.h>
#include <Pegasus/Common/CIMMessage.h>
#include <Pegasus/Common/OperationContextInternal.h>
#include <Pegasus/Common/ReadWriteSem.h>

#include <Pegasus/ProviderManager2/ProviderManager.h>
#include <Pegasus/ProviderManagerService/ProviderManagerRouter.h>
#include <Pegasus/ProviderManagerService/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

class ProviderManagerContainer;

class PEGASUS_PMS_LINKAGE BasicProviderManagerRouter
    : public ProviderManagerRouter
{
public:
    BasicProviderManagerRouter(
        PEGASUS_INDICATION_CALLBACK_T indicationCallback,
        PEGASUS_RESPONSE_CHUNK_CALLBACK_T responseChunkCallback,
        ProviderManager* (*createDefaultProviderManagerCallback)());

    virtual ~BasicProviderManagerRouter();

    virtual Message* processMessage(Message* message);

    /**
        Indicates whether any of the active ProviderManagers managed by this
        ProviderManagerRouter has an active (e.g., loaded/initialized)
        provider.  If no providers are active, this ProviderManagerRouter
        may be destructed without harm.
     */
    Boolean hasActiveProviders();

    virtual void unloadIdleProviders();

private:
    BasicProviderManagerRouter();
    BasicProviderManagerRouter(const BasicProviderManagerRouter&);
    BasicProviderManagerRouter& operator=(const BasicProviderManagerRouter&);

   // providerModuleName is used to report the error when ProviderManager 
   // can not be found for the interfaceType.
    ProviderManager* _getProviderManager(const String& interfaceType,
        const String& providerModuleName,
        const String& providerManagerPath);
    ProviderManager* _lookupProviderManager(const String& interfaceType);

    Array<ProviderManagerContainer*> _providerManagerTable;
    ReadWriteSem _providerManagerTableLock;

    static PEGASUS_INDICATION_CALLBACK_T _indicationCallback;
    static PEGASUS_RESPONSE_CHUNK_CALLBACK_T _responseChunkCallback;
    static ProviderManager* (*_createDefaultProviderManagerCallback)();
};

PEGASUS_NAMESPACE_END

#endif