//%/////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM,
// The Open Group, Tivoli Systems
//
// 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.
//
//==============================================================================
//
// Author: Chip Vincent (cvincent@us.ibm.com)
//
// Modified By:
//
//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_CIMMethodProvider_h
#define Pegasus_CIMMethodProvider_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Provider/CIMProvider.h>

#include <Pegasus/Common/Array.h>
#include <Pegasus/Common/CIMName.h>
#include <Pegasus/Common/CIMObjectPath.h>
#include <Pegasus/Common/CIMValue.h>
#include <Pegasus/Common/CIMParamValue.h>
#include <Pegasus/Provider/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

/**
Functions that support the invocation of methods defined
for a CIM class.

<p>The <i>Method Provider</i> supports the client InvokeMethod
operation, which is used to invoke any method(s)
defined on a CIM class of object. In addition to the
functions inherited from the {@link CIMProvider CIMProvider}
interface, the Method Provider interface defines one function:</p>

<ul>
<li>{@link invokeMethod invokeMethod}</li>
</ul>

<p>The arguments to <tt>invokeMethod</tt> specify the instance
on which the method is being invoked, the method name, and its
parameters.</p>

<p>Providers that derive from this class <i>must</i> implement
all of these functions. A minimal implementation of <tt>invokeMethod</tt>
may throw a {@link NotSupported NotSupported} exception.</p>

<p>A method provider is not required to implement all of the
CIM methods defined for a class; there can be more than one
method provider for a class. Each provider
may implement a subset of the defined methods, leaving other
methods to be implemented by other method providers. No method
may can implemented by more than one provider. The
methods that are implemented by a provider must be specified to
the CIMOM through provider registration in the
<tt>SupportedMethods</tt> property of an instance of the
<tt>PG_ProviderCapabilities</tt> class.</p>
*/
class PEGASUS_PROVIDER_LINKAGE CIMMethodProvider : public virtual CIMProvider
{
public:
    CIMMethodProvider(void);
    virtual ~CIMMethodProvider(void);

    /**
    Invoke the specified method on the specified instance.

    <p>Instructs the provider to invoke the method specified in the
    <tt>methodName</tt> parameter on the object
    specified in the <tt>objectReference</tt> parameter.

    @param context specifies the client user's context for this operation,
    including the User ID.

    @param objectReference specifies the fully qualified object path
    of the class or instance of interest.

    @param methodName specifies the name of the method of interest.

    @param inParameters specifies the input parameters of the method.

    @param outParameters specifies the output parameter of the method.

    @param handler a {@link ResponseHandler ResponseHandler} object used
    to deliver results to the CIMOM.

    @exception NotSupported
    @exception InvalidParameter
    @exception ObjectNotFound
    @exception AccessDenied
    @exception OperationFailure
    */
    virtual void invokeMethod(
	const OperationContext & context,
	const CIMObjectPath & objectReference,
	const CIMName & methodName,
	const Array<CIMParamValue> & inParameters,
	MethodResultResponseHandler & handler) = 0;

};

PEGASUS_NAMESPACE_END

#endif