def addfile(fname, access='r', dtype='netcdf', keepopen=False, **kwargs): """ Opens a data file that is written in a supported file format. :param fname: (*string*) The full or relative path of the data file to load. :param access: (*string*) The access right setting to the data file. Default is ``r``. :param dtype: (*string*) The data type of the data file. Default is ``netcdf``. :param keepopen: (*boolean*) If the file keep open after this function. Default is ``False``. The file need to be closed later if ``keepopen`` is ``True``. :returns: (*DimDataFile*) Opened file object. """ if access == 'r': fname = fname.strip() fname, isweb = __getfilename(fname) if fname is None: raise IOError(fname) if isweb: return addfile_nc(fname, False) if not os.path.exists(fname): raise IOError(fname) fsufix = os.path.splitext(fname)[1].lower() if fsufix == '.ctl': return addfile_grads(fname, False) elif fsufix == '.tif': return addfile_geotiff(fname, False) elif fsufix == '.awx': return addfile_awx(fname, False) elif fsufix == '.bil': return addfile_bil(fname, False) meteodata = MeteoDataInfo() meteodata.openData(fname, keepopen) datafile = DimDataFile(meteodata, access=access) return datafile elif access == 'c': if dtype == 'arl': arldata = ARLDataInfo() arldata.createDataFile(fname) datafile = DimDataFile(arldata=arldata) elif dtype == 'bufr': bufrdata = BufrDataInfo() if os.path.exists(fname): try: os.remove(fname) except: info = sys.exc_info() print info[0], ":", info[1] bufrdata.createDataFile(fname) datafile = DimDataFile(bufrdata=bufrdata) else: version = kwargs.pop('version', 'netcdf3') if version == 'netcdf3': version = NetcdfFileWriter.Version.netcdf3 else: version = NetcdfFileWriter.Version.netcdf4 ncfile = NetcdfFileWriter.createNew(version, fname) largefile = kwargs.pop('largefile', None) if not largefile is None: ncfile.setLargeFile(largefile) datafile = DimDataFile(access=access, ncfile=ncfile) return datafile elif access == 'w': fname = fname.strip() fname, isweb = __getfilename(fname) if fname is None: raise IOError(fname) meteodata = MeteoDataInfo() ncfile = NetcdfFileWriter.openExisting(fname) meteodata = MeteoDataInfo() meteodata.openData(ncfile.getNetcdfFile(), True) datafile = DimDataFile(dataset=meteodata, access=access, ncfile=ncfile) return datafile else: return None
def addfile(fname, access='r', dtype='netcdf', keepopen=False, **kwargs): """ Opens a data file that is written in a supported file format. :param fname: (*string*) The full or relative path of the data file to load. :param access: (*string*) The access right setting to the data file. Default is ``r``. :param dtype: (*string*) The data type of the data file. Default is ``netcdf``. :param keepopen: (*boolean*) If the file keep open after this function. Default is ``False``. The file need to be closed later if ``keepopen`` is ``True``. :returns: (*DimDataFile*) Opened file object. """ if access == 'r': fname = fname.strip() fname, isweb = __getfilename(fname) if fname is None: raise IOError(fname) if isweb: return addfile_nc(fname, False) if not os.path.exists(fname): raise IOError(fname) fsufix = os.path.splitext(fname)[1].lower() if fsufix == '.ctl': return addfile_grads(fname, False) elif fsufix == '.tif': return addfile_geotiff(fname, False) elif fsufix == '.awx': return addfile_awx(fname, False) elif fsufix == '.bil': return addfile_bil(fname, False) meteodata = MeteoDataInfo() meteodata.openData(fname, keepopen) datafile = DimDataFile(meteodata, access=access) return datafile elif access == 'c': if dtype == 'arl': arldata = ARLDataInfo() arldata.createDataFile(fname) datafile = DimDataFile(arldata=arldata) elif dtype == 'bufr': bufrdata = BufrDataInfo() if os.path.exists(fname): try: os.remove(fname) except: info=sys.exc_info() print info[0],":",info[1] bufrdata.createDataFile(fname) datafile = DimDataFile(bufrdata=bufrdata) else: version = kwargs.pop('version', 'netcdf3') if version == 'netcdf3': version = NetcdfFileWriter.Version.netcdf3 else: version = NetcdfFileWriter.Version.netcdf4 ncfile = NetcdfFileWriter.createNew(version, fname) largefile = kwargs.pop('largefile', None) if not largefile is None: ncfile.setLargeFile(largefile) datafile = DimDataFile(access=access, ncfile=ncfile) return datafile elif access == 'w': fname = fname.strip() fname, isweb = __getfilename(fname) if fname is None: raise IOError(fname) meteodata = MeteoDataInfo() ncfile = NetcdfFileWriter.openExisting(fname) meteodata = MeteoDataInfo() meteodata.openData(ncfile.getNetcdfFile(), True) datafile = DimDataFile(dataset=meteodata, access=access, ncfile=ncfile) return datafile else: return None