Package translate :: Package misc :: Module selector :: Class Selector

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# Class Selector

source code

WSGI middleware for URL paths and HTTP method based delegation.

see http://lukearno.com/projects/selector/

mappings are given are an iterable that returns tuples like this:

(path_expression, http_methods_dict, optional_prefix)

Instance Methods | [hide private]

__init__(self, mappings=None, prefix=`'````'`, parser=None, wrap=None, mapfile=None, consume_path=True) Initialize selector. | source code

slurp(self, mappings, prefix=None, parser=None, wrap=None) Slurp in a whole list (or iterable) of mappings. | source code

add(self, path, method_dict=None, prefix=None, **http_methods) Add a mapping. | source code

__call__(self, environ, start_response) Delegate request to the appropriate WSGI app. | source code

select(self, path, method) Figure out which app to delegate to or send 404 or 405. | source code

slurp_file(self, the_file, prefix=None, parser=None, wrap=None) Read mappings from a simple text file. | source code

_parse_line(self, line, path, methods) Parse one line of a mapping file. | source code

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

Static Methods | [hide private]

status405(environ, start_response) Respond with a 405 and appropriate Allow header. | source code

status404(environ, start_response) Respond with a 404. | source code

Properties | [hide private]

Inherited from `object`: `__class__`

Method Details | [hide private]

### __init__(self, mappings=None, prefix=`'````'`, parser=None, wrap=None, mapfile=None, consume_path=True)
(Constructor)

source code

Initialize selector.

Overrides: object.__init__

### slurp(self, mappings, prefix=None, parser=None, wrap=None)

source code

Slurp in a whole list (or iterable) of mappings.

Prefix and parser args will override self.parser and self.args for the given mappings.

### add(self, path, method_dict=None, prefix=None, **http_methods)

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Add a mapping.

HTTP methods can be specified in a dict or using kwargs, but kwargs will override if both are given.

Prefix will override self.prefix for this mapping.

### slurp_file(self, the_file, prefix=None, parser=None, wrap=None)

source code

    Read mappings from a simple text file.

    == Format looks like this: ==

    {{{

    # Comments if first non-whitespace char on line is '#'
    # Blank lines are ignored

    /foo/{id}[/]
        GET somemodule:some_wsgi_app
        POST pak.subpak.mod:other_wsgi_app

    @prefix /myapp
    /path[/]
        GET module:app
        POST package.module:get_app('foo')
        PUT package.module:FooApp('hello', resolve('module.setting'))

    @parser :lambda x: x
    @prefix
    ^/spam/eggs[/]$
        GET mod:regex_mapped_app

    }}}

    @prefix and @parser directives take effect
    until the end of the file or until changed

### _parse_line(self, line, path, methods)

source code

Parse one line of a mapping file.

This method is for the use of selector.slurp_file.