Mercurial > p > roundup > code

annotate roundup/indexer.py @ 1669:17ec0bd6ecc5 maint-0.5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
*** empty log message ***
author Richard Jones <richard@users.sourceforge.net>
date Wed, 18 Jun 2003 23:52:54 +0000
parents 728a0809183e
children 4884fb0860f9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
1 #
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
2 # This module is derived from the module described at:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
3 # http://gnosis.cx/publish/programming/charming_python_15.txt
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
4 #
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
5 # Author: David Mertz (mertz@gnosis.cx)
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
6 # Thanks to: Pat Knight (p.knight@ktgroup.co.uk)
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
7 # Gregory Popovitch (greg@gpy.com)
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
8 #
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
9 # The original module was released under this license, and remains under
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
10 # it:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
11 #
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
12 # This file is released to the public domain. I (dqm) would
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
13 # appreciate it if you choose to keep derived works under terms
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
14 # that promote freedom, but obviously am giving up any rights
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
15 # to compel such.
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
16 #
1206
728a0809183e handle multiple unrelated indexed classes
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
17 #$Id: indexer.py,v 1.14 2002-09-25 05:06:14 richard Exp $
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
18 '''
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
19 This module provides an indexer class, RoundupIndexer, that stores text
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
20 indices in a roundup instance. This class makes searching the content of
834
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
21 messages, string properties and text files possible.
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
22 '''
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
23 import os, shutil, re, mimetypes, marshal, zlib, errno
834
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
24 from hyperdb import Link, Multilink
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
25
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
26 class Indexer:
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
27 ''' Indexes information from roundup's hyperdb to allow efficient
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
28 searching.
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
29
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
30 Three structures are created by the indexer:
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
31 files {identifier: (fileid, wordcount)}
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
32 words {word: {fileid: count}}
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
33 fileids {fileid: identifier}
834
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
34 where identifier is (classname, nodeid, propertyname)
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
35 '''
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
36 def __init__(self, db_path):
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
37 self.indexdb_path = os.path.join(db_path, 'indexes')
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
38 self.indexdb = os.path.join(self.indexdb_path, 'index.db')
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
39 self.reindex = 0
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
40 self.quiet = 9
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
41 self.changed = 0
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
42
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
43 # see if we need to reindex because of a change in code
863
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
44 version = os.path.join(self.indexdb_path, 'version')
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
45 if (not os.path.exists(self.indexdb_path) or
863
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
46 not os.path.exists(version)):
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
47 # for now the file itself is a flag
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
48 self.force_reindex()
863
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
49 elif os.path.exists(version):
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
50 version = open(version).read()
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
51 # check the value and reindex if it's not the latest
880
de3da99a7c02 Add Number and Boolean types to hyperdb.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 867
diff changeset
52 if version.strip() != '1':
863
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
53 self.force_reindex()
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
54
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
55 def force_reindex(self):
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
56 '''Force a reindex condition
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
57 '''
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
58 if os.path.exists(self.indexdb_path):
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
59 shutil.rmtree(self.indexdb_path)
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
60 os.makedirs(self.indexdb_path)
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
61 os.chmod(self.indexdb_path, 0775)
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
62 open(os.path.join(self.indexdb_path, 'version'), 'w').write('1\n')
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
63 self.reindex = 1
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
64 self.changed = 1
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
65
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
66 def should_reindex(self):
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
67 '''Should we reindex?
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
68 '''
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
69 return self.reindex
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
70
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
71 def add_text(self, identifier, text, mime_type='text/plain'):
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
72 ''' Add some text associated with the (classname, nodeid, property)
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
73 identifier.
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
74 '''
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
75 # make sure the index is loaded
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
76 self.load_index()
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
77
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
78 # remove old entries for this identifier
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
79 if self.files.has_key(identifier):
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
80 self.purge_entry(identifier)
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
81
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
82 # split into words
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
83 words = self.splitter(text, mime_type)
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
84
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
85 # Find new file index, and assign it to identifier
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
86 # (_TOP uses trick of negative to avoid conflict with file index)
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
87 self.files['_TOP'] = (self.files['_TOP'][0]-1, None)
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
88 file_index = abs(self.files['_TOP'][0])
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
89 self.files[identifier] = (file_index, len(words))
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
90 self.fileids[file_index] = identifier
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
91
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
92 # find the unique words
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
93 filedict = {}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
94 for word in words:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
95 if filedict.has_key(word):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
96 filedict[word] = filedict[word]+1
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
97 else:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
98 filedict[word] = 1
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
99
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
100 # now add to the totals
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
101 for word in filedict.keys():
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
102 # each word has a dict of {identifier: count}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
103 if self.words.has_key(word):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
104 entry = self.words[word]
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
105 else:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
106 # new word
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
107 entry = {}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
108 self.words[word] = entry
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
109
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
110 # make a reference to the file for this word
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
111 entry[file_index] = filedict[word]
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
112
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
113 # save needed
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
114 self.changed = 1
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
115
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
116 def splitter(self, text, ftype):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
117 ''' Split the contents of a text string into a list of 'words'
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
118 '''
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
119 if ftype == 'text/plain':
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
120 words = self.text_splitter(text)
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
121 else:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
122 return []
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
123 return words
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
124
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
125 def text_splitter(self, text):
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
126 """Split text/plain string into a list of words
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
127 """
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
128 # case insensitive
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
129 text = text.upper()
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
130
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
131 # Split the raw text, losing anything longer than 25 characters
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
132 # since that'll be gibberish (encoded text or somesuch) or shorter
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
133 # than 3 characters since those short words appear all over the
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
134 # place
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
135 return re.findall(r'\b\w{2,25}\b', text)
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
136
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
137 def search(self, search_terms, klass, ignore={},
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
138 dre=re.compile(r'([^\d]+)(\d+)')):
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
139 ''' Display search results looking for [search, terms] associated
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
140 with the hyperdb Class "klass". Ignore hits on {class: property}.
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
141
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
142 "dre" is a helper, not an argument.
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
143 '''
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
144 # do the index lookup
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
145 hits = self.find(search_terms)
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
146 if not hits:
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
147 return {}
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
148
834
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
149 #designator_propname = {'msg': 'messages', 'file': 'files'}
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
150 designator_propname = {}
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
151 for nm, propclass in klass.getprops().items():
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
152 if isinstance(propclass, Link) or isinstance(propclass, Multilink):
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
153 designator_propname[propclass.classname] = nm
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
154
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
155 # build a dictionary of nodes and their associated messages
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
156 # and files
834
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
157 nodeids = {} # this is the answer
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
158 propspec = {} # used to do the klass.find
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
159 for propname in designator_propname.values():
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
160 propspec[propname] = {} # used as a set (value doesn't matter)
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
161 for classname, nodeid, property in hits.values():
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
162 # skip this result if we don't care about this class/property
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
163 if ignore.has_key((classname, property)):
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
164 continue
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
165
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
166 # if it's a property on klass, it's easy
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
167 if classname == klass.classname:
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
168 if not nodeids.has_key(nodeid):
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
169 nodeids[nodeid] = {}
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
170 continue
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
171
1206
728a0809183e handle multiple unrelated indexed classes
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
172 # make sure the class is a linked one, otherwise ignore
728a0809183e handle multiple unrelated indexed classes
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
173 if not designator_propname.has_key(classname):
728a0809183e handle multiple unrelated indexed classes
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
174 continue
728a0809183e handle multiple unrelated indexed classes
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
175
834
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
176 # it's a linked class - set up to do the klass.find
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
177 linkprop = designator_propname[classname] # eg, msg -> messages
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
178 propspec[linkprop][nodeid] = 1
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
179
834
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
180 # retain only the meaningful entries
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
181 for propname, idset in propspec.items():
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
182 if not idset:
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
183 del propspec[propname]
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
184
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
185 # klass.find tells me the klass nodeids the linked nodes relate to
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
186 for resid in klass.find(**propspec):
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
187 resid = str(resid)
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
188 if not nodeids.has_key(id):
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
189 nodeids[resid] = {}
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
190 node_dict = nodeids[resid]
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
191 # now figure out where it came from
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
192 for linkprop in propspec.keys():
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
193 for nodeid in klass.get(resid, linkprop):
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
194 if propspec[linkprop].has_key(nodeid):
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
195 # OK, this node[propname] has a winner
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
196 if not node_dict.has_key(linkprop):
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
197 node_dict[linkprop] = [nodeid]
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
198 else:
568eed5fb4fd Optimize Class.find so that the propspec can contain a set of ids to match.
Gordon B. McMillan <gmcm@users.sourceforge.net>
parents: 833
diff changeset
199 node_dict[linkprop].append(nodeid)
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
200 return nodeids
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
201
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
202 # we override this to ignore not 2 < word < 25 and also to fix a bug -
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
203 # the (fail) case.
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
204 def find(self, wordlist):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
205 ''' Locate files that match ALL the words in wordlist
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
206 '''
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
207 if not hasattr(self, 'words'):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
208 self.load_index()
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
209 self.load_index(wordlist=wordlist)
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
210 entries = {}
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
211 hits = None
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
212 for word in wordlist:
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
213 if not 2 < len(word) < 25:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
214 # word outside the bounds of what we index - ignore
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
215 continue
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
216 word = word.upper()
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
217 entry = self.words.get(word) # For each word, get index
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
218 entries[word] = entry # of matching files
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
219 if not entry: # Nothing for this one word (fail)
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
220 return {}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
221 if hits is None:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
222 hits = {}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
223 for k in entry.keys():
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
224 hits[k] = self.fileids[k]
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
225 else:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
226 # Eliminate hits for every non-match
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
227 for fileid in hits.keys():
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
228 if not entry.has_key(fileid):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
229 del hits[fileid]
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
230 if hits is None:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
231 return {}
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
232 return hits
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
233
827
0a2c1f5e0e5a We're indexing numbers now, and _underscore words
Richard Jones <richard@users.sourceforge.net>
parents: 826
diff changeset
234 segments = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ#_-!"
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
235 def load_index(self, reload=0, wordlist=None):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
236 # Unless reload is indicated, do not load twice
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
237 if self.index_loaded() and not reload:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
238 return 0
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
239
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
240 # Ok, now let's actually load it
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
241 db = {'WORDS': {}, 'FILES': {'_TOP':(0,None)}, 'FILEIDS': {}}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
242
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
243 # Identify the relevant word-dictionary segments
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
244 if not wordlist:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
245 segments = self.segments
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
246 else:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
247 segments = ['-','#']
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
248 for word in wordlist:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
249 segments.append(word[0].upper())
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
250
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
251 # Load the segments
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
252 for segment in segments:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
253 try:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
254 f = open(self.indexdb + segment, 'rb')
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
255 except IOError, error:
863
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
256 # probably just nonexistent segment index file
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
257 if error.errno != errno.ENOENT: raise
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
258 else:
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
259 pickle_str = zlib.decompress(f.read())
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
260 f.close()
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
261 dbslice = marshal.loads(pickle_str)
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
262 if dbslice.get('WORDS'):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
263 # if it has some words, add them
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
264 for word, entry in dbslice['WORDS'].items():
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
265 db['WORDS'][word] = entry
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
266 if dbslice.get('FILES'):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
267 # if it has some files, add them
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
268 db['FILES'] = dbslice['FILES']
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
269 if dbslice.get('FILEIDS'):
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
270 # if it has fileids, add them
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
271 db['FILEIDS'] = dbslice['FILEIDS']
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
272
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
273 self.words = db['WORDS']
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
274 self.files = db['FILES']
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
275 self.fileids = db['FILEIDS']
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
276 self.changed = 0
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
277
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
278 def save_index(self):
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
279 # only save if the index is loaded and changed
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
280 if not self.index_loaded() or not self.changed:
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
281 return
825
0779ea9f1f18 More indexer work:
Richard Jones <richard@users.sourceforge.net>
parents: 818
diff changeset
282
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
283 # brutal space saver... delete all the small segments
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
284 for segment in self.segments:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
285 try:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
286 os.remove(self.indexdb + segment)
863
ba38e1e718f2 Some TODOs
Richard Jones <richard@users.sourceforge.net>
parents: 834
diff changeset
287 except OSError, error:
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
288 # probably just nonexistent segment index file
867
Richard Jones <richard@users.sourceforge.net>
parents: 863
diff changeset
289 if error.errno != errno.ENOENT: raise
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
290
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
291 # First write the much simpler filename/fileid dictionaries
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
292 dbfil = {'WORDS':None, 'FILES':self.files, 'FILEIDS':self.fileids}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
293 open(self.indexdb+'-','wb').write(zlib.compress(marshal.dumps(dbfil)))
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
294
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
295 # The hard part is splitting the word dictionary up, of course
827
0a2c1f5e0e5a We're indexing numbers now, and _underscore words
Richard Jones <richard@users.sourceforge.net>
parents: 826
diff changeset
296 letters = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ#_"
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
297 segdicts = {} # Need batch of empty dicts
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
298 for segment in letters:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
299 segdicts[segment] = {}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
300 for word, entry in self.words.items(): # Split into segment dicts
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
301 initchar = word[0].upper()
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
302 segdicts[initchar][word] = entry
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
303
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
304 # save
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
305 for initchar in letters:
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
306 db = {'WORDS':segdicts[initchar], 'FILES':None, 'FILEIDS':None}
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
307 pickle_str = marshal.dumps(db)
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
308 filename = self.indexdb + initchar
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
309 pickle_fh = open(filename, 'wb')
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
310 pickle_fh.write(zlib.compress(pickle_str))
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
311 os.chmod(filename, 0664)
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
312
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
313 # save done
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
314 self.changed = 0
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
315
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
316 def purge_entry(self, identifier):
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
317 ''' Remove a file from file index and word index
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
318 '''
891
974a4b94c5e3 Implemented the destroy() method needed by the session database...
Richard Jones <richard@users.sourceforge.net>
parents: 880
diff changeset
319 self.load_index()
974a4b94c5e3 Implemented the destroy() method needed by the session database...
Richard Jones <richard@users.sourceforge.net>
parents: 880
diff changeset
320
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
321 if not self.files.has_key(identifier):
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
322 return
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
323
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
324 file_index = self.files[identifier][0]
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
325 del self.files[identifier]
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
326 del self.fileids[file_index]
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
327
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
328 # The much harder part, cleanup the word index
826
6d7a45c8464a Added reindex command to roundup-admin.
Richard Jones <richard@users.sourceforge.net>
parents: 825
diff changeset
329 for key, occurs in self.words.items():
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
330 if occurs.has_key(file_index):
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
331 del occurs[file_index]
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
332
833
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
333 # save needed
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
334 self.changed = 1
b80aaedba3db Only save the index if the thing is loaded and changed.
Richard Jones <richard@users.sourceforge.net>
parents: 827
diff changeset
335
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
336 def index_loaded(self):
818
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
337 return (hasattr(self,'fileids') and hasattr(self,'files') and
254b8d112eec cleaned up the indexer code:
Richard Jones <richard@users.sourceforge.net>
parents: 749
diff changeset
338 hasattr(self,'words'))
749
51c425129b35 Merged search_indexing-branch with HEAD
Roche Compaan <rochecompaan@users.sourceforge.net>
parents:
diff changeset
339
1090
9b910e8d987d removed Log
Richard Jones <richard@users.sourceforge.net>
parents: 891
diff changeset
340 # vim: set filetype=python ts=4 sw=4 et si
Roundup Issue Tracker: http://roundup-tracker.org/