mapproxy.core.cache.FileCache

Class FileCache

object --+ | FileCache

Instance Methods

__init__(self, cache_dir, file_ext, pre_store_filter=None, link_single_color_images=False)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

level_location(self, level)
Return the path where all tiles for level will be stored. source code

tile_location(self, tile, create_dir=False)
Return the location of the tile. source code

_single_color_tile_location(self, color, create_dir=False)

source code

timestamp_created(self, tile)
Return the timestamp of the last modification of the tile.

source code

_update_tile_metadata(self, tile)

source code

is_cached(self, tile)
Returns True if the tile data is present. source code

load(self, tile, with_metadata=False)
Fills the _Tile.source of the tile if it is cached. source code

store(self, tile)
Add the given tile to the file cache. source code

_store(self, tile, location)

source code

__repr__(self)
repr(x)

source code

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __str__

Properties

[hide private]

Inherited from object: __class__

init(self, cache_dir, file_ext, pre_store_filter=None, link_single_color_images=False)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Parameters:

cache_dir - the path where the tile will be stored
file_ext - the file extension that will be appended to each tile (e.g. 'png')
pre_store_filter - a list with filter. each filter will be called with a tile before it will be stored to disc. the filter should return this or a new tile object.

Overrides: object.__init__

tile_location(self, tile, create_dir=False)

source code

Return the location of the tile. Caches the result as location property of the tile.

>>> c = FileCache(cache_dir='/tmp/cache/', file_ext='png')
>>> c.tile_location(_Tile((3, 4, 2))).replace('\\', '/')
'/tmp/cache/02/000/000/003/000/000/004.png'

Parameters:

tile - the tile object
create_dir - if True, create all necessary directories

Returns:

the full filename of the tile

load(self, tile, with_metadata=False)

source code

Fills the _Tile.source of the tile if it is cached. If it is not cached or if the .coord is None, nothing happens.

store(self, tile)

source code

Add the given tile to the file cache. Stores the _Tile.source to FileCache.tile_location.

All pre_store_filter will be called with the tile, before it will be stored.

repr(self)
(Representation operator)

source code

repr(x)

Overrides: object.__repr__: (inherited documentation)

Class FileCache

__init__(self, cache_dir, file_ext, pre_store_filter=None, link_single_color_images=False) (Constructor)

tile_location(self, tile, create_dir=False)

load(self, tile, with_metadata=False)

store(self, tile)

__repr__(self) (Representation operator)

init(self, cache_dir, file_ext, pre_store_filter=None, link_single_color_images=False)
(Constructor)

repr(self)
(Representation operator)