-
Notifications
You must be signed in to change notification settings - Fork 2k
/
index.py
328 lines (272 loc) · 12.2 KB
/
index.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
# encoding: utf-8
import socket
import string
import logging
import collections
import json
import datetime
from dateutil.parser import parse
import re
import pysolr
from ckan.common import config
from ckan.common import asbool
from six import text_type
from six.moves import map
from common import SearchIndexError, make_connection
from ckan.model import PackageRelationship
import ckan.model as model
from ckan.plugins import (PluginImplementations,
IPackageController)
import ckan.logic as logic
import ckan.lib.plugins as lib_plugins
import ckan.lib.navl.dictization_functions
log = logging.getLogger(__name__)
TYPE_FIELD = "entity_type"
PACKAGE_TYPE = "package"
KEY_CHARS = string.digits + string.letters + "_-"
SOLR_FIELDS = [TYPE_FIELD, "res_url", "text", "urls", "indexed_ts", "site_id"]
RESERVED_FIELDS = SOLR_FIELDS + ["tags", "groups", "res_name", "res_description",
"res_format", "res_url", "res_type"]
RELATIONSHIP_TYPES = PackageRelationship.types
# Regular expression used to strip invalid XML characters
_illegal_xml_chars_re = re.compile(u'[\x00-\x08\x0b\x0c\x0e-\x1F\uD800-\uDFFF\uFFFE\uFFFF]')
def escape_xml_illegal_chars(val, replacement=''):
'''
Replaces any character not supported by XML with
a replacement string (default is an empty string)
Thanks to http://goo.gl/ZziIz
'''
return _illegal_xml_chars_re.sub(replacement, val)
def clear_index():
conn = make_connection()
query = "+site_id:\"%s\"" % (config.get('ckan.site_id'))
try:
conn.delete(q=query)
except socket.error as e:
err = 'Could not connect to SOLR %r: %r' % (conn.url, e)
log.error(err)
raise SearchIndexError(err)
except pysolr.SolrError as e:
err = 'SOLR %r exception: %r' % (conn.url, e)
log.error(err)
raise SearchIndexError(err)
class SearchIndex(object):
"""
A search index handles the management of documents of a specific type in the
index, but no queries.
The default implementation maps many of the methods, so most subclasses will
only have to implement ``update_dict`` and ``remove_dict``.
"""
def __init__(self):
pass
def insert_dict(self, data):
""" Insert new data from a dictionary. """
return self.update_dict(data)
def update_dict(self, data):
""" Update data from a dictionary. """
log.debug("NOOP Index: %s" % ",".join(data.keys()))
def remove_dict(self, data):
""" Delete an index entry uniquely identified by ``data``. """
log.debug("NOOP Delete: %s" % ",".join(data.keys()))
def clear(self):
""" Delete the complete index. """
clear_index()
def get_all_entity_ids(self):
""" Return a list of entity IDs in the index. """
raise NotImplemented
class NoopSearchIndex(SearchIndex): pass
class PackageSearchIndex(SearchIndex):
def remove_dict(self, pkg_dict):
self.delete_package(pkg_dict)
def update_dict(self, pkg_dict, defer_commit=False):
self.index_package(pkg_dict, defer_commit)
def index_package(self, pkg_dict, defer_commit=False):
if pkg_dict is None:
return
# tracking summary values will be stale, never store them
tracking_summary = pkg_dict.pop('tracking_summary', None)
for r in pkg_dict.get('resources', []):
r.pop('tracking_summary', None)
data_dict_json = json.dumps(pkg_dict)
if config.get('ckan.cache_validated_datasets', True):
package_plugin = lib_plugins.lookup_package_plugin(
pkg_dict.get('type'))
schema = package_plugin.show_package_schema()
validated_pkg_dict, errors = lib_plugins.plugin_validate(
package_plugin, {'model': model, 'session': model.Session},
pkg_dict, schema, 'package_show')
pkg_dict['validated_data_dict'] = json.dumps(validated_pkg_dict,
cls=ckan.lib.navl.dictization_functions.MissingNullEncoder)
pkg_dict['data_dict'] = data_dict_json
# add to string field for sorting
title = pkg_dict.get('title')
if title:
pkg_dict['title_string'] = title
# delete the package if there is no state, or the state is `deleted`
if (not pkg_dict.get('state') or 'deleted' in pkg_dict.get('state')):
return self.delete_package(pkg_dict)
index_fields = RESERVED_FIELDS + pkg_dict.keys()
# include the extras in the main namespace
extras = pkg_dict.get('extras', [])
for extra in extras:
key, value = extra['key'], extra['value']
if isinstance(value, (tuple, list)):
value = " ".join(map(text_type, value))
key = ''.join([c for c in key if c in KEY_CHARS])
pkg_dict['extras_' + key] = value
if key not in index_fields:
pkg_dict[key] = value
pkg_dict.pop('extras', None)
# add tags, removing vocab tags from 'tags' list and adding them as
# vocab_<tag name> so that they can be used in facets
non_vocab_tag_names = []
tags = pkg_dict.pop('tags', [])
context = {'model': model}
for tag in tags:
if tag.get('vocabulary_id'):
data = {'id': tag['vocabulary_id']}
vocab = logic.get_action('vocabulary_show')(context, data)
key = u'vocab_%s' % vocab['name']
if key in pkg_dict:
pkg_dict[key].append(tag['name'])
else:
pkg_dict[key] = [tag['name']]
else:
non_vocab_tag_names.append(tag['name'])
pkg_dict['tags'] = non_vocab_tag_names
# add groups
groups = pkg_dict.pop('groups', [])
# we use the capacity to make things private in the search index
if pkg_dict['private']:
pkg_dict['capacity'] = 'private'
else:
pkg_dict['capacity'] = 'public'
pkg_dict['groups'] = [group['name'] for group in groups]
# if there is an owner_org we want to add this to groups for index
# purposes
if pkg_dict.get('organization'):
pkg_dict['organization'] = pkg_dict['organization']['name']
else:
pkg_dict['organization'] = None
# tracking
if not tracking_summary:
tracking_summary = model.TrackingSummary.get_for_package(
pkg_dict['id'])
pkg_dict['views_total'] = tracking_summary['total']
pkg_dict['views_recent'] = tracking_summary['recent']
resource_fields = [('name', 'res_name'),
('description', 'res_description'),
('format', 'res_format'),
('url', 'res_url'),
('resource_type', 'res_type')]
resource_extras = [(e, 'res_extras_' + e) for e
in model.Resource.get_extra_columns()]
# flatten the structure for indexing:
for resource in pkg_dict.get('resources', []):
for (okey, nkey) in resource_fields + resource_extras:
pkg_dict[nkey] = pkg_dict.get(nkey, []) + [resource.get(okey, u'')]
pkg_dict.pop('resources', None)
rel_dict = collections.defaultdict(list)
subjects = pkg_dict.pop("relationships_as_subject", [])
objects = pkg_dict.pop("relationships_as_object", [])
for rel in objects:
type = model.PackageRelationship.forward_to_reverse_type(rel['type'])
rel_dict[type].append(model.Package.get(rel['subject_package_id']).name)
for rel in subjects:
type = rel['type']
rel_dict[type].append(model.Package.get(rel['object_package_id']).name)
for key, value in rel_dict.iteritems():
if key not in pkg_dict:
pkg_dict[key] = value
pkg_dict[TYPE_FIELD] = PACKAGE_TYPE
# Save dataset type
pkg_dict['dataset_type'] = pkg_dict['type']
# clean the dict fixing keys and dates
# FIXME where are we getting these dirty keys from? can we not just
# fix them in the correct place or is this something that always will
# be needed? For my data not changing the keys seems to not cause a
# problem.
new_dict = {}
bogus_date = datetime.datetime(1, 1, 1)
for key, value in pkg_dict.items():
key = key.encode('ascii', 'ignore')
if key.endswith('_date'):
try:
date = parse(value, default=bogus_date)
if date != bogus_date:
value = date.isoformat() + 'Z'
else:
# The date field was empty, so dateutil filled it with
# the default bogus date
value = None
except ValueError:
continue
new_dict[key] = value
pkg_dict = new_dict
for k in ('title', 'notes', 'title_string'):
if k in pkg_dict and pkg_dict[k]:
pkg_dict[k] = escape_xml_illegal_chars(pkg_dict[k])
# modify dates (SOLR is quite picky with dates, and only accepts ISO dates
# with UTC time (i.e trailing Z)
# See http://lucene.apache.org/solr/api/org/apache/solr/schema/DateField.html
pkg_dict['metadata_created'] += 'Z'
pkg_dict['metadata_modified'] += 'Z'
# mark this CKAN instance as data source:
pkg_dict['site_id'] = config.get('ckan.site_id')
# Strip a selection of the fields.
# These fields are possible candidates for sorting search results on,
# so we strip leading spaces because solr will sort " " before "a" or "A".
for field_name in ['title']:
try:
value = pkg_dict.get(field_name)
if value:
pkg_dict[field_name] = value.lstrip()
except KeyError:
pass
# add a unique index_id to avoid conflicts
import hashlib
pkg_dict['index_id'] = hashlib.md5('%s%s' % (pkg_dict['id'],config.get('ckan.site_id'))).hexdigest()
for item in PluginImplementations(IPackageController):
pkg_dict = item.before_index(pkg_dict)
assert pkg_dict, 'Plugin must return non empty package dict on index'
# permission labels determine visibility in search, can't be set
# in original dataset or before_index plugins
labels = lib_plugins.get_permission_labels()
dataset = model.Package.get(pkg_dict['id'])
pkg_dict['permission_labels'] = labels.get_dataset_labels(
dataset) if dataset else [] # TestPackageSearchIndex-workaround
# send to solr:
try:
conn = make_connection()
commit = not defer_commit
if not asbool(config.get('ckan.search.solr_commit', 'true')):
commit = False
conn.add(docs=[pkg_dict], commit=commit)
except pysolr.SolrError as e:
msg = 'Solr returned an error: {0}'.format(
e[:1000] # limit huge responses
)
raise SearchIndexError(msg)
except socket.error as e:
err = 'Could not connect to Solr using {0}: {1}'.format(conn.url, str(e))
log.error(err)
raise SearchIndexError(err)
commit_debug_msg = 'Not committed yet' if defer_commit else 'Committed'
log.debug('Updated index for %s [%s]' % (pkg_dict.get('name'), commit_debug_msg))
def commit(self):
try:
conn = make_connection()
conn.commit(waitSearcher=False)
except Exception as e:
log.exception(e)
raise SearchIndexError(e)
def delete_package(self, pkg_dict):
conn = make_connection()
query = "+%s:%s AND +(id:\"%s\" OR name:\"%s\") AND +site_id:\"%s\"" % \
(TYPE_FIELD, PACKAGE_TYPE, pkg_dict.get('id'), pkg_dict.get('id'), config.get('ckan.site_id'))
try:
commit = asbool(config.get('ckan.search.solr_commit', 'true'))
conn.delete(q=query, commit=commit)
except Exception as e:
log.exception(e)
raise SearchIndexError(e)