OutputDestinationChecker.h

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//# Copyright (C) 1998,1999,2000,2001,2003
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This program is free software; you can redistribute it and/or modify it
//# under the terms of the GNU General Public License as published by the Free
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//# any later version.
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//# more details.
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#ifndef IMAGES_OUTPUTDESTINATIONCHECKER_H
#define IMAGES_OUTPUTDESTINATIONCHECKER_H

#include <casa/aips.h>
#include <casa/namespace.h>

#include <casa/BasicSL/String.h>

#include <casa/Logging/LogIO.h>

#include <vector>

namespace casa {

class OutputDestinationChecker {
        // <summary>
        // </summary>

        // <reviewed reviewer="" date="" tests="" demos="">
        // </reviewed>

        // <prerequisite>
        // </prerequisite>

        // <etymology>
        // </etymology>

        // <synopsis>
        // </synopsis>

public:

        // struct for checking output file writability
        struct OutputStruct {
                // label used for messages, eg "residual image", "estmates file"
                String label;
                // pointer to the output name
                String *outputFile;
                // is this file required to be written, or can the task continue if it cannot be?
                Bool required;
                // If a file by the same name already exists, will the task allow it to be overwritten?
                Bool replaceable;
        };

    OutputDestinationChecker();

        //Destructor
        ~OutputDestinationChecker();

    static void checkOutputs(std::vector<OutputStruct> *const output, LogIO& log);

    static void checkOutput(OutputStruct& output, LogIO& log);

    // Get the number of channels that have been selected. The process() method must
    // be called prior to calling this method or an exception is thrown.
    uInt nSelectedChannels() const;

};

}

#endif /* IMAGES_IMAGEINPUTPROCESSOR_H */