//%2005////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//==============================================================================
//
// Authors: David Rosckes (rosckes@us.ibm.com)
//          Bert Rivero (hurivero@us.ibm.com)
//          Chuck Carmack (carmack@us.ibm.com)
//          Brian Lucier (lucier@us.ibm.com)
//
// Modified By: Vijay Eli, IBM (vijayeli@in.ibm.com) bug#3590
//
//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_CQLFactor_h
#define Pegasus_CQLFactor_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/CQL/Linkage.h>
#include <Pegasus/CQL/CQLPredicate.h>
#include <Pegasus/CQL/CQLFunction.h>


PEGASUS_NAMESPACE_BEGIN

// Forward declares
class PEGASUS_CQL_LINKAGE CIMNamespaceName;
class PEGASUS_CQL_LINKAGE CQLFactory;

class PEGASUS_CQL_LINKAGE CQLFunctionRep
{
  public:


    CQLFunctionRep();

    CQLFunctionRep(const CQLFunctionRep* rep);

    CQLFunctionRep(CQLIdentifier inOpType, Array<CQLPredicate> inParms);

    ~CQLFunctionRep();

    /** 
     The getValue method validates the parms versus FunctionOpType.
     (A) resolves prarameter  types
     (B) number of parms
     and then actually executes the function.
     Returns a CQLValue object that has already been resolved.
     */
    CQLValue resolveValue(const CIMInstance& CI, const QueryContext& queryCtx);

    Array<CQLPredicate> getParms() const;

   FunctionOpType getFunctionType() const;

   String toString()const;

   void applyContext(const QueryContext& inContext);

  // Boolean operator==(const CQLFunctionRep& func)const;

//   Boolean operator!=(const CQLFunctionRep& func)const;

   friend class CQLFactory;

 private:
   CQLValue dateTimeToMicrosecond(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue stringToUint(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue stringToSint(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue stringToReal(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue stringToNumeric(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue upperCase(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue numericToString(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue referenceToString(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue className(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue nameSpaceName(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue nameSpaceType(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue hostPort(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue modelPath(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue classPath(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue objectPath(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue instanceToReference(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue currentDateTime() const;
   CQLValue dateTime(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue microsecondToTimestamp(const CIMInstance& CI, const QueryContext& queryCtx) const;
   CQLValue microsecondToInterval(const CIMInstance& CI, const QueryContext& queryCtx) const;

   // Used by the path functions
   CQLValue buildModelPath(const CIMObjectPath& objPath) const;
   CQLValue buildClassPath(const CIMObjectPath& objPath, const CIMNamespaceName& ns) const;
   CQLValue buildObjectPath(const CIMObjectPath& objPath, const CIMNamespaceName& ns) const;

   // Utility methods to convert enums into strings
   String functionTypeToString() const;
      
   // Member data
   FunctionOpType _funcOpType;
   Array<CQLPredicate> _parms;

};

PEGASUS_NAMESPACE_END

#endif 
