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BUG#: 7043
TITLE: assert on creation of duplicate subscription and subsequent restart
DESCRIPTION: Used NormalizedSubscriptionTable to fix the problem.

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#ifndef Pegasus_NormalizedSubscriptionTable_h
#define Pegasus_NormalizedSubscriptionTable_h

#include <Pegasus/Common/CIMObjectPath.h>
#include <Pegasus/Common/ReadWriteSem.h>
#include <Pegasus/Server/Linkage.h>
#include <Pegasus/Common/HashTable.h>

PEGASUS_NAMESPACE_BEGIN

/**
    NormalizedSubscriptionTable holds the all normalized subscriptions. This is
    used to avoid creation of duplicate subscriptions and handling of similar
    subscription requests at the same time.
*/

class PEGASUS_SERVER_LINKAGE NormalizedSubscriptionTable
{
public:
    NormalizedSubscriptionTable(const Array<CIMInstance> &subscriptions);
    ~NormalizedSubscriptionTable();

    /**
        Normalizes the subscription path. Host name will be removed from both
        filter and handler objectPaths. Namespace will also be removed from
        filter or handler if filter's or handler's namespace is same as
        subscription namespace.
        @param subPath subscription path
        @return normalized subscription path.
   */
    static CIMObjectPath normalize(const CIMObjectPath &subPath);
    /**
        Adds subscription path to the subscriptionTable after
        subscription path normalization.
        @param subPath, subscription path.
        @param value, associated key value.
        @return true if inserted successfully else false.
    */
    Boolean add(const CIMObjectPath &subPath, const Boolean &value = true);

    /**
        Deletes subscription path from the subscriptionTable after
        subscription path normalization.
        @param subPath subscription path.
        @return true if deleted successfully else false.
    */
    Boolean remove(const CIMObjectPath &subPath);

    /**
        Checks for subscription path from the subscriptionTable after
        subscription path normalization.
        @param subPath subscription path.
        @param value, output arg, contains associated key value if found.
        @return true if found else false.
    */
    Boolean exists(const CIMObjectPath &subPath, Boolean &value);

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


    /**
        NormalizedSubscriptionTable maintains all the subscription objectpaths
        in normalized form.
    */
    HashTable <CIMObjectPath, Boolean, EqualFunc <CIMObjectPath>,
        HashFunc <CIMObjectPath> > _subscriptionTable;
};

PEGASUS_NAMESPACE_END

#endif /* Pegasus_NormalizedSubscriptionTable_h */