FileUtils.h

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#ifndef CARMA_UTIL_FILEUTILS_H
#define CARMA_UTIL_FILEUTILS_H

#include "carma/util/StringUtils.h"
#include "carma/util/Time.h"

#include <string>
#include <sys/stat.h>
#include <vector>

namespace carma {
    namespace util {

class FileUtils {
public:

    static std::string computeMessageDigest(const std::string& fileName, 
                                            const DigestType& digestType);

    static std::string computeSha1Sum(const std::string& fileName);

    static bool exists(const std::string& fileName);
    
    static void rename( const std::string & from, const std::string & to );

    static void removeFile( const std::string & target );

    static void makeDirectory( const std::string & path, 
                               mode_t mode = S_IRWXU | S_IRWXG | S_IROTH );

    static void hardLink( const std::string & target, 
                          const std::string & link );

    static unsigned lineCount(const std::string& fileName);


    static off_t size(const std::string& fileName);
    static off64_t size64(const std::string& fileName);

    static std::string getError(const std::string& fileName);

    static time_t modificationTime(const std::string& fileName);

    static time_t changeTime(const std::string& fileName);

    static time_t accessTime(const std::string& fileName);

    static void writeMonitorDataFlatFileHeader
        (FILE * & file, const carma::util::frameType& frameCount,
         const std::string& signature);

    static void readMonitorDataFlatFileHeader
        (const std::string& fileName, carma::util::frameType& frameCount,
         std::string& signature);

    static unsigned getMonitorDataFlatFileHeaderLength(const unsigned& sigLength);
        
    static std::vector<std::string> scandir( const std::string & dir );

};
}}
#endif  // CARMA_UTIL_FILEUTILS_H