a 1$e@srdZddlZddlmZmZmZddlmZddlm Z ddl m Z e e ZGdddeZGd d d eZdS) z3Classes capable of reading and writing collections N)MemoryFileBase_listdir _listlayers) Collection) supports_vsi) DriverErrorc sPeZdZdZdfdd ZdddZdd d Zdd d Zd dZddZ Z S) MemoryFileaA BytesIO-like object, backed by an in-memory file. This allows formatted files to be read and written without I/O. A MemoryFile created with initial bytes becomes immutable. A MemoryFile created without initial bytes may be written to using either file-like or dataset interfaces. Parameters ---------- file_or_bytes : an open Python file, bytes, or None If not None, the MemoryFile becomes immutable and read-only. If None, it is write-only. filename : str An optional filename. The default is a UUID-based name. ext : str An optional file extension. Some format drivers require a specific value. Ncs,|r|dsd|}tj|||ddS)N.) file_or_bytesfilenameext) startswithsuper__init__selfr r r  __class__D/var/www/html/django/DPS/env/lib/python3.9/site-packages/fiona/io.pyr#s zMemoryFile.__init__Fc Ks|jrtd| s*|dur*t|s*td|dvrB|sBtd|durb|dkrb|rbtd|rr|dkr|dur||d}n |durd}t|j|f||||||| | d | S) aOpen the file and return a Fiona collection object. If data has already been written, the file is opened in 'r' mode. Otherwise, the file is opened in 'w' mode. Parameters ---------- Note well that there is no `path` parameter: a `MemoryFile` contains a single dataset and there is no need to specify a path. Other parameters are optional and have the same semantics as the parameters of `fiona.open()`. I/O operation on closed file.Nz)Driver {} does not support virtual files.)razMemoryFile does not exist.wzMemoryFile already exists.r)crsdriverschemaencodinglayerenabled_driversallow_unsupported_driverscrs_wkt)closedOSErrorrrexistsZ_ensure_extensionrname) rmoderrrrrZvfsr r"r!kwargsrrropen)sD  zMemoryFile.opencCs8|jrtd|r(d|j|d}n|j}t|S)zList files in a directory. Parameters ---------- path : URI (str or pathlib.Path) A dataset resource identifier. Returns ------- list A list of filename strings. r{}/{}/)r#r$formatr&lstriprrpathvsi_pathrrrlistdiris zMemoryFile.listdircCs8|jrtd|r(d|j|d}n|j}t|S)aList layer names in their index order Parameters ---------- path : URI (str or pathlib.Path) A dataset resource identifier. Returns ------- list A list of layer name strings. rr*r+)r#r$r,r&r-rr.rrr listlayerss zMemoryFile.listlayerscCs|SNr)rrrr __enter__szMemoryFile.__enter__cOs |dSr3)close)rargsr(rrr__exit__szMemoryFile.__exit__)NNr ) NNNNNNNNNF)N)N) __name__ __module__ __qualname____doc__rr)r1r2r4r7 __classcell__rrrrrs" @  rcs,eZdZdZd fdd Zd ddZZS) ZipMemoryFilea)A read-only BytesIO-like object backed by an in-memory zip file. This allows a zip file containing formatted files to be read without I/O. Parameters ---------- file_or_bytes : an open Python file, bytes, or None If not None, the MemoryFile becomes immutable and read-only. If None, it is write-only. filename : str An optional filename. The default is a UUID-based name. ext : str An optional file extension. Some format drivers require a specific value. The default is ".zip". N.zipcs$tj|||dd|j|_dS)N)r r z/vsizip)rrr&rrrrrszZipMemoryFile.__init__Fc Kst|rd|j|d}n d|j}|jr4td|rNd|j|d}n|j}t|df|||||d|S)aOpen a dataset within the zipped stream. Parameters ---------- path : str Path to a dataset in the zip file, relative to the root of the archive. Returns ------- A Fiona collection object z/vsizip{0}/{1}r+z /vsizip{0}rr*r)rrrr r!)r,r&r-r#r$r) rr/rrrr r!r(r0rrrr)s( zZipMemoryFile.open)NNr>)NNNNNF)r8r9r:r;rr)r<rrrrr=sr=)r;loggingZ fiona.ogrextrrrZfiona.collectionrZ fiona.metarZ fiona.errorsr getLoggerr8logrr=rrrrs