asn_sample.cpp

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/*  $Id: asn_sample.cpp 90001 2020-05-04 12:53:02Z ivanov $
* ===========================================================================
*
*                            PUBLIC DOMAIN NOTICE
*               National Center for Biotechnology Information
*
*  This software/database is a "United States Government Work" under the
*  terms of the United States Copyright Act.  It was written as part of
*  the author's official duties as a United States Government employee and
*  thus cannot be copyrighted.  This software/database is freely available
*  to the public for use. The National Library of Medicine and the U.S.
*  Government have not placed any restriction on its use or reproduction.
*
*  Although all reasonable efforts have been taken to ensure the accuracy
*  and reliability of the software and data, the NLM and the U.S.
*  Government do not and cannot warrant the performance or results that
*  may be obtained by using this software or data. The NLM and the U.S.
*  Government disclaim all warranties, express or implied, including
*  warranties of performance, merchantability or fitness for any particular
*  purpose.
*
*  Please cite the author in any work or product based on this material.
*
* ===========================================================================
*
* Author:  Denis Vakatov
*
* File Description:
*   A part of the project demonstrating how to generate source code from
*   an ASN.1 specification (see "sample_asn.asn") and then use that code
*   to read, convert and write data matching that specification.
*
* ===========================================================================
*/
 
#include <ncbi_pch.hpp>
#include <corelib/ncbiapp.hpp>
#include <sample/app/asn/NCBI_Sample_ASN_Type.hpp>
 
USING_SCOPE(ncbi);
USING_SCOPE(objects);
 
 
class CSampleAsnApplication : public CNcbiApplication
{
    virtual void Init(void);
    virtual int  Run(void);
};
 
 
void CSampleAsnApplication::Init(void)
{
    // Create command-line argument descriptions class
    unique_ptr<CArgDescriptions> arg_desc(new CArgDescriptions);
 
    // Specify USAGE context
    arg_desc->SetUsageContext
        (GetArguments().GetProgramBasename(),
         "Object serialization demo program");
 
    // Describe the expected command-line arguments
    arg_desc->AddDefaultKey
        ("input", "InputFile",
         "name of file to read ASN.1 data from (standard input by default)",
         CArgDescriptions::eInputFile, "-", CArgDescriptions::fPreOpen);
 
    arg_desc->AddDefaultKey
        ("output", "OutputFile",
         "name of file to write XML data to (standard output by default)",
         CArgDescriptions::eOutputFile, "-", CArgDescriptions::fPreOpen);
 
    // Setup arg.descriptions for this application
    SetupArgDescriptions(arg_desc.release());
}
 
 
int CSampleAsnApplication::Run(void)
{
    CNCBI_Sample_ASN_Type obj;
 
    // Read as text ASN.1
    GetArgs()["input"].AsInputFile() >> MSerial_AsnText >> obj;
 
    // Write as XML
    GetArgs()["output"].AsOutputFile() << MSerial_Xml << obj;
 
    return 0;
}
 
 
 
/////////////////////////////////////////////////////////////////////////////
//  MAIN
 
int NcbiSys_main(int argc, ncbi::TXChar* argv[])
{
    return CSampleAsnApplication().AppMain(argc, argv);
}