Mercurial > piecrust2

annotate piecrust/data/providersdata.py @ 1110:05fba0b8e21c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
data: Use the root URL for the debugger assets.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 18 Feb 2018 20:33:45 -0800
parents 45ad976712ec
children ed308313bcda
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
440
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
1 import re
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
2 import collections.abc
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
3 from piecrust.configuration import ConfigurationError
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
4 from piecrust.dataproviders.base import (
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
5 DataProvider, build_data_provider)
440
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
6
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
7
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
8 re_endpoint_sep = re.compile(r'[\/\.]')
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
9
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
10
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
11 class DataProvidersData(collections.abc.Mapping):
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
12 def __init__(self, page):
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
13 self._page = page
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
14 self._dict = None
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
15
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
16 def __getitem__(self, name):
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
17 self._load()
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
18 return self._dict[name]
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
19
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
20 def __iter__(self):
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
21 self._load()
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
22 return iter(self._dict)
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
23
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
24 def __len__(self):
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
25 self._load()
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
26 return len(self._dict)
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
27
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
28 def _load(self):
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
29 if self._dict is not None:
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
30 return
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
31
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
32 self._dict = {}
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
33 for source in self._page.app.sources:
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
34 pname = source.config.get('data_type') or 'page_iterator'
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
35 pendpoint = source.config.get('data_endpoint')
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
36 if not pname or not pendpoint:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
37 continue
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
38
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
39 endpoint_bits = re_endpoint_sep.split(pendpoint)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
40 endpoint = self._dict
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
41 for e in endpoint_bits[:-1]:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
42 if e not in endpoint:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
43 endpoint[e] = {}
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
44 endpoint = endpoint[e]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
45 existing = endpoint.get(endpoint_bits[-1])
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
46
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
47 if existing is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
48 provider = build_data_provider(pname, source, self._page)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
49 endpoint[endpoint_bits[-1]] = provider
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
50 elif isinstance(existing, DataProvider):
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
51 existing_source = existing._sources[0]
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
52 if (existing.PROVIDER_NAME != pname or
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
53 existing_source.SOURCE_NAME != source.SOURCE_NAME):
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
54 raise ConfigurationError(
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
55 "Can't combine data providers '%s' and '%' "
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
56 "(using sources '%s' and '%s') "
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
57 "on endpoint '%s'." %
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
58 (existing.PROVIDER_NAME, pname,
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
59 existing_source.SOURCE_NAME, source.SOURCE_NAME,
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
60 pendpoint))
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
61 existing._addSource(source)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
62 else:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
63 raise ConfigurationError(
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
64 "Endpoint '%s' can't be used for a data provider because "
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 847
diff changeset
65 "it's already used for something else." % pendpoint)