ngamsDbSnapshotUtils.py 文件源码

def _genFileKey(fileInfo):
    """
    Generate a dictionary key from information in the File Info object,
    which is either a list with information from ngas_files, or an
    ngamsFileInfo object.

    fileInfo:       File Info as read from the ngas_files table or
                    an instance of ngamsFileInfo (list|ngamsFileInfo).

    Returns:        File key (string).
    """
    if ((type(fileInfo) == types.ListType) or
        (type(fileInfo) == types.TupleType)):
        fileId  = fileInfo[ngamsDbCore.NGAS_FILES_FILE_ID]
        fileVer = fileInfo[ngamsDbCore.NGAS_FILES_FILE_VER]
    else:
        fileId  = fileInfo.getFileId()
        fileVer = fileInfo.getFileVersion()
    return ngamsLib.genFileKey(None, fileId, fileVer)