command.h

Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. It is designed to be por

//%2006////////////////////////////////////////////////////////////////////////
//
// 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.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec 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
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//==============================================================================
//
// Author: Carol Ann Krug Graves, Hewlett-Packard Company
//              ([e-mail])
//
// Modified By: David Dillard, VERITAS Software Corp.
//                  ([e-mail])
//
//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_Command_h
#define Pegasus_Command_h

#include <iostream>
#include <Pegasus/Common/String.h>
#include <Clients/cliutils/Linkage.h>
#include <Clients/cliutils/CommandException.h>
#include <Pegasus/Common/MessageLoader.h> //l10n
#include <Pegasus/Common/Formatter.h> //l10n

PEGASUS_NAMESPACE_BEGIN

/**

    Command is the abstract base class for WBEM and CIM commands.

    @author  Hewlett-Packard Company

 */
class PEGASUS_CLIUTILS_LINKAGE Command
{
public:

    virtual ~Command();

    /**

        Gets command usage string.  Usage string may be retrieved and displayed
        when a CommandFormatException is caught.

        @return  String containing the command usage message

     */
    String& getUsage ();

    /**

        Parses the command line, validates the options, and sets instance
        variables based on the options and arguments.

        @param   argc  the number of command line arguments
        @param   argv  the string vector of command line arguments

        @exception     CommandFormatException    Indicates the command line was
                                                 improperly formed

     */
    virtual void setCommand (Uint32 argc, char *argv []) = 0;

    /**

        Executes the command and writes the results to the output streams.

        @param  outPrintWriter  the ostream to which output should be
                                written

        @param  errPrintWriter  the ostream to which error output
                                should be written

        @return  0              if the command is successful
                 1              if an error occurs in executing the command

     */
    virtual Uint32 execute (PEGASUS_STD(ostream)& outPrintWriter,
                            PEGASUS_STD(ostream)& errPrintWriter) = 0;

    //
    // Return codes
    //
    /**

        Return value from the execute method indicating the command executed
        successfully.

    */
    static const Uint32    RC_SUCCESS;

    /**

        Return value from the execute method indicating an error occurred in
        executing the command.

    */
    static const Uint32    RC_ERROR;

    //l10n
	String localizeMessage(	const char *resource_path,
						   	const char * key,
						   	const char * default_msg,
							Formatter::Arg arg0 = Formatter::Arg(),
							Formatter::Arg arg1 = Formatter::Arg(),
							Formatter::Arg arg2 = Formatter::Arg(),
							Formatter::Arg arg3 = Formatter::Arg(),
							Formatter::Arg arg4 = Formatter::Arg(),
							Formatter::Arg arg5 = Formatter::Arg(),
							Formatter::Arg arg6 = Formatter::Arg(),
							Formatter::Arg arg7 = Formatter::Arg(),
							Formatter::Arg arg8 = Formatter::Arg(),
							Formatter::Arg arg9 = Formatter::Arg());

protected:
    /**

        Sets command usage string.  Usage string should be set by Command
        subclass constructor.

        @param    usageMessage    the command usage message

     */
    void setUsage (String& usageMessage);

private:

    /**

        The usage string for this command.  The value of the string should be
        set in the command subclass constructor.  The string may be retrieved
        and displayed when a CommandFormatException is caught.

     */
    String _usage;
};

PEGASUS_NAMESPACE_END

#endif  /* Pegasus_Command_h */