author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Mon, 26 Sep 2011 18:38:38 +0200 | |
branch | stable |
changeset 7864 | 17c007ad845a |
parent 7731 | 48e78934a4e2 |
child 7910 | e5d5609e3bf1 |
child 7921 | a93e2ed5877a |
permissions | -rw-r--r-- |
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# copyright 2010-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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# |
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# This file is part of CubicWeb. |
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# |
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# CubicWeb is free software: you can redistribute it and/or modify it under the |
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# terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 2.1 of the License, or (at your option) |
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# any later version. |
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# |
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License along |
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# with CubicWeb. If not, see <http://www.gnu.org/licenses/>. |
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"""datafeed sources: copy data from an external data stream into the system |
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database |
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""" |
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from __future__ import with_statement |
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import urllib2 |
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import StringIO |
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from datetime import datetime, timedelta |
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from base64 import b64decode |
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from cookielib import CookieJar |
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from lxml import etree |
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from cubicweb import RegistryNotFound, ObjectNotFound, ValidationError, UnknownEid |
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from cubicweb.server.sources import AbstractSource |
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from cubicweb.appobject import AppObject |
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class DataFeedSource(AbstractSource): |
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copy_based_source = True |
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use_cwuri_as_url = True |
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options = ( |
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('synchronize', |
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{'type' : 'yn', |
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'default': True, |
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'help': ('Is the repository responsible to automatically import ' |
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'content from this source? ' |
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'You should say yes unless you don\'t want this behaviour ' |
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'or if you use a multiple repositories setup, in which ' |
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'case you should say yes on one repository, no on others.'), |
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'group': 'datafeed-source', 'level': 2, |
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}), |
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('synchronization-interval', |
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{'type' : 'time', |
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'default': '5min', |
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'help': ('Interval in seconds between synchronization with the ' |
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'external source (default to 5 minutes, must be >= 1 min).'), |
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'group': 'datafeed-source', 'level': 2, |
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}), |
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('delete-entities', |
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{'type' : 'yn', |
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'default': True, |
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'help': ('Should already imported entities not found anymore on the ' |
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'external source be deleted?'), |
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'group': 'datafeed-source', 'level': 2, |
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}), |
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) |
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def __init__(self, repo, source_config, eid=None): |
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AbstractSource.__init__(self, repo, source_config, eid) |
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self.update_config(None, self.check_conf_dict(eid, source_config, |
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fail_if_unknown=False)) |
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def check_config(self, source_entity): |
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"""check configuration of source entity""" |
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typedconfig = super(DataFeedSource, self).check_config(source_entity) |
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if typedconfig['synchronization-interval'] < 60: |
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_ = source_entity._cw._ |
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msg = _('synchronization-interval must be greater than 1 minute') |
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raise ValidationError(source_entity.eid, {'config': msg}) |
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return typedconfig |
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def _entity_update(self, source_entity): |
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source_entity.complete() |
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self.parser_id = source_entity.parser |
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self.latest_retrieval = source_entity.latest_retrieval |
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self.urls = [url.strip() for url in source_entity.url.splitlines() |
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if url.strip()] |
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def update_config(self, source_entity, typedconfig): |
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"""update configuration from source entity. `typedconfig` is config |
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properly typed with defaults set |
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""" |
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self.synchro_interval = timedelta(seconds=typedconfig['synchronization-interval']) |
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if source_entity is not None: |
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self._entity_update(source_entity) |
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self.config = typedconfig |
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96 |
|
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97 |
def init(self, activated, source_entity): |
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98 |
if activated: |
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99 |
self._entity_update(source_entity) |
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self.parser_id = source_entity.parser |
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101 |
self.load_mapping(source_entity._cw) |
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102 |
|
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103 |
def _get_parser(self, session, **kwargs): |
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104 |
return self.repo.vreg['parsers'].select( |
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self.parser_id, session, source=self, **kwargs) |
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106 |
|
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107 |
def load_mapping(self, session): |
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108 |
self.mapping = {} |
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109 |
self.mapping_idx = {} |
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110 |
try: |
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111 |
parser = self._get_parser(session) |
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112 |
except (RegistryNotFound, ObjectNotFound): |
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113 |
return # no parser yet, don't go further |
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114 |
self._load_mapping(session, parser=parser) |
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115 |
|
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116 |
def add_schema_config(self, schemacfg, checkonly=False, parser=None): |
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117 |
"""added CWSourceSchemaConfig, modify mapping accordingly""" |
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118 |
if parser is None: |
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119 |
parser = self._get_parser(schemacfg._cw) |
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120 |
parser.add_schema_config(schemacfg, checkonly) |
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121 |
|
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122 |
def del_schema_config(self, schemacfg, checkonly=False, parser=None): |
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123 |
"""deleted CWSourceSchemaConfig, modify mapping accordingly""" |
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124 |
if parser is None: |
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125 |
parser = self._get_parser(schemacfg._cw) |
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126 |
parser.del_schema_config(schemacfg, checkonly) |
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127 |
|
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128 |
def fresh(self): |
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129 |
if self.latest_retrieval is None: |
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130 |
return False |
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131 |
return datetime.utcnow() < (self.latest_retrieval + self.synchro_interval) |
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132 |
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133 |
def update_latest_retrieval(self, session): |
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134 |
self.latest_retrieval = datetime.utcnow() |
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session.execute('SET X latest_retrieval %(date)s WHERE X eid %(x)s', |
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136 |
{'x': self.eid, 'date': self.latest_retrieval}) |
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137 |
|
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138 |
def acquire_synchronization_lock(self, session): |
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139 |
# XXX race condition until WHERE of SET queries is executed using |
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140 |
# 'SELECT FOR UPDATE' |
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141 |
if not session.execute('SET X synchronizing TRUE WHERE X eid %(x)s, X synchronizing FALSE', |
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142 |
{'x': self.eid}): |
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143 |
self.error('concurrent synchronization detected, skip pull') |
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144 |
session.commit(free_cnxset=False) |
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145 |
return False |
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146 |
session.commit(free_cnxset=False) |
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147 |
return True |
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148 |
|
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149 |
def release_synchronization_lock(self, session): |
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session.set_cnxset() |
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151 |
session.execute('SET X synchronizing FALSE WHERE X eid %(x)s', |
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152 |
{'x': self.eid}) |
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153 |
session.commit() |
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154 |
|
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fix _set_relation when no target eids, update datafeed source pull_data arguments to raise on error during tests
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155 |
def pull_data(self, session, force=False, raise_on_error=False): |
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156 |
"""Launch synchronization of the source if needed. |
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157 |
|
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158 |
This method is responsible to handle commit/rollback on the given |
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159 |
session. |
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160 |
""" |
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161 |
if not force and self.fresh(): |
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162 |
return {} |
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163 |
if not self.acquire_synchronization_lock(session): |
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164 |
return {} |
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165 |
try: |
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166 |
with session.transaction(free_cnxset=False): |
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167 |
return self._pull_data(session, force, raise_on_error) |
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168 |
finally: |
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169 |
self.release_synchronization_lock(session) |
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170 |
|
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171 |
def _pull_data(self, session, force=False, raise_on_error=False): |
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172 |
if self.config['delete-entities']: |
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173 |
myuris = self.source_cwuris(session) |
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174 |
else: |
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175 |
myuris = None |
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176 |
parser = self._get_parser(session, sourceuris=myuris) |
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177 |
if self.process_urls(parser, self.urls, raise_on_error): |
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178 |
self.warning("some error occured, don't attempt to delete entities") |
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179 |
elif self.config['delete-entities'] and myuris: |
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180 |
byetype = {} |
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181 |
for eid, etype in myuris.values(): |
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182 |
byetype.setdefault(etype, []).append(str(eid)) |
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183 |
self.error('delete %s entities %s', self.uri, byetype) |
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184 |
for etype, eids in byetype.iteritems(): |
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185 |
session.execute('DELETE %s X WHERE X eid IN (%s)' |
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186 |
% (etype, ','.join(eids))) |
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self.update_latest_retrieval(session) |
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return parser.stats |
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189 |
|
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def process_urls(self, parser, urls, raise_on_error=False): |
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error = False |
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for url in urls: |
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self.info('pulling data from %s', url) |
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try: |
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if parser.process(url, raise_on_error): |
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error = True |
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except IOError, exc: |
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if raise_on_error: |
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raise |
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self.error('could not pull data while processing %s: %s', |
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url, exc) |
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error = True |
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except Exception, exc: |
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if raise_on_error: |
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raise |
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self.exception('error while processing %s: %s', |
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url, exc) |
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error = True |
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return error |
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210 |
|
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def before_entity_insertion(self, session, lid, etype, eid, sourceparams): |
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"""called by the repository when an eid has been attributed for an |
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entity stored here but the entity has not been inserted in the system |
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214 |
table yet. |
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215 |
|
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This method must return the an Entity instance representation of this |
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entity. |
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""" |
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entity = super(DataFeedSource, self).before_entity_insertion( |
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session, lid, etype, eid, sourceparams) |
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entity.cw_edited['cwuri'] = lid.decode('utf-8') |
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entity.cw_edited.set_defaults() |
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sourceparams['parser'].before_entity_copy(entity, sourceparams) |
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return entity |
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225 |
|
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226 |
def after_entity_insertion(self, session, lid, entity, sourceparams): |
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"""called by the repository after an entity stored here has been |
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inserted in the system table. |
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229 |
""" |
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230 |
if session.is_hook_category_activated('integrity'): |
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entity.cw_edited.check(creation=True) |
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self.repo.system_source.add_entity(session, entity) |
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entity.cw_edited.saved = entity._cw_is_saved = True |
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sourceparams['parser'].after_entity_copy(entity, sourceparams) |
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235 |
|
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236 |
def source_cwuris(self, session): |
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sql = ('SELECT extid, eid, type FROM entities, cw_source_relation ' |
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'WHERE entities.eid=cw_source_relation.eid_from ' |
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'AND cw_source_relation.eid_to=%s' % self.eid) |
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240 |
return dict((b64decode(uri), (eid, type)) |
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for uri, eid, type in session.system_sql(sql)) |
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242 |
|
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243 |
|
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244 |
class DataFeedParser(AppObject): |
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__registry__ = 'parsers' |
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246 |
|
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247 |
def __init__(self, session, source, sourceuris=None, **kwargs): |
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super(DataFeedParser, self).__init__(session, **kwargs) |
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249 |
self.source = source |
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250 |
self.sourceuris = sourceuris |
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251 |
self.stats = {'created': set(), |
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252 |
'updated': set()} |
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253 |
|
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254 |
def add_schema_config(self, schemacfg, checkonly=False): |
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255 |
"""added CWSourceSchemaConfig, modify mapping accordingly""" |
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256 |
msg = schemacfg._cw._("this parser doesn't use a mapping") |
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257 |
raise ValidationError(schemacfg.eid, {None: msg}) |
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258 |
|
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259 |
def del_schema_config(self, schemacfg, checkonly=False): |
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"""deleted CWSourceSchemaConfig, modify mapping accordingly""" |
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261 |
msg = schemacfg._cw._("this parser doesn't use a mapping") |
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262 |
raise ValidationError(schemacfg.eid, {None: msg}) |
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263 |
|
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def extid2entity(self, uri, etype, **sourceparams): |
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"""return an entity for the given uri. May return None if it should be |
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266 |
skipped |
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267 |
""" |
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268 |
session = self._cw |
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# if cwsource is specified and repository has a source with the same |
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# name, call extid2eid on that source so entity will be properly seen as |
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271 |
# coming from this source |
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source_uri = sourceparams.pop('cwsource', None) |
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if source_uri is not None and source_uri != 'system': |
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274 |
source = session.repo.sources_by_uri.get(source_uri, self.source) |
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else: |
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276 |
source = self.source |
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277 |
sourceparams['parser'] = self |
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278 |
if isinstance(uri, unicode): |
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uri = uri.encode('utf-8') |
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closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7552
diff
changeset
|
280 |
try: |
7697
ef50074a0314
[repo api] deprecates source.extid2eid, only the system source should implement it,
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7642
diff
changeset
|
281 |
eid = session.repo.extid2eid(source, str(uri), etype, session, |
7708
45be3a9debe6
[datafeed] for datafeed source, we don't want commit in extid2eid but explicitly handled by the source. Also, we should use 'safe' internal session
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7699
diff
changeset
|
282 |
complete=False, commit=False, |
7698
1c7411535c2d
[datafeed / fti] rather control a 'complete' parameter than setting empty attribute values
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7697
diff
changeset
|
283 |
sourceparams=sourceparams) |
7590
a9aad6c25836
closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7552
diff
changeset
|
284 |
except ValidationError, ex: |
a9aad6c25836
closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7552
diff
changeset
|
285 |
self.source.error('error while creating %s: %s', etype, ex) |
a9aad6c25836
closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7552
diff
changeset
|
286 |
return None |
7399
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
287 |
if eid < 0: |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
288 |
# entity has been moved away from its original source |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
289 |
# |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
290 |
# Don't give etype to entity_from_eid so we get UnknownEid if the |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
291 |
# entity has been removed |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
292 |
try: |
7697
ef50074a0314
[repo api] deprecates source.extid2eid, only the system source should implement it,
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7642
diff
changeset
|
293 |
entity = session.entity_from_eid(-eid) |
7399
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
294 |
except UnknownEid: |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
295 |
return None |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
296 |
self.notify_updated(entity) # avoid later update from the source's data |
972ed1843bd8
[multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7398
diff
changeset
|
297 |
return entity |
6957
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
298 |
if self.sourceuris is not None: |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
299 |
self.sourceuris.pop(str(uri), None) |
7697
ef50074a0314
[repo api] deprecates source.extid2eid, only the system source should implement it,
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7642
diff
changeset
|
300 |
return session.entity_from_eid(eid, etype) |
6957
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
301 |
|
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
302 |
def process(self, url, partialcommit=True): |
6957
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
303 |
"""main callback: process the url""" |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
304 |
raise NotImplementedError |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
305 |
|
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
306 |
def before_entity_copy(self, entity, sourceparams): |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
307 |
raise NotImplementedError |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
308 |
|
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
309 |
def after_entity_copy(self, entity, sourceparams): |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
310 |
self.stats['created'].add(entity.eid) |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
311 |
|
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
312 |
def created_during_pull(self, entity): |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
313 |
return entity.eid in self.stats['created'] |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
314 |
|
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
315 |
def updated_during_pull(self, entity): |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
316 |
return entity.eid in self.stats['updated'] |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
317 |
|
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
318 |
def notify_updated(self, entity): |
ffda12be2e9f
[repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
319 |
return self.stats['updated'].add(entity.eid) |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
320 |
|
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
321 |
|
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
322 |
class DataFeedXMLParser(DataFeedParser): |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
323 |
|
7385
29f050e39b09
[datafeed] propagate raise_on_error to parser's process method
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7379
diff
changeset
|
324 |
def process(self, url, raise_on_error=False, partialcommit=True): |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
325 |
"""IDataFeedParser main entry point""" |
7447
d5705c9bbe82
don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7446
diff
changeset
|
326 |
try: |
d5705c9bbe82
don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7446
diff
changeset
|
327 |
parsed = self.parse(url) |
d5705c9bbe82
don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7446
diff
changeset
|
328 |
except Exception, ex: |
7533
43835fbdf97d
[datafeed] actually raise on error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7527
diff
changeset
|
329 |
if raise_on_error: |
43835fbdf97d
[datafeed] actually raise on error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7527
diff
changeset
|
330 |
raise |
7456
c54038622fc9
[datafeed] use a boolean flag on CWSource to ensure we don't have concurrent synchronizations. Closes #1725690
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7447
diff
changeset
|
331 |
self.source.error(str(ex)) |
7447
d5705c9bbe82
don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7446
diff
changeset
|
332 |
return True |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
333 |
error = False |
7447
d5705c9bbe82
don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7446
diff
changeset
|
334 |
for args in parsed: |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
335 |
try: |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
336 |
self.process_item(*args) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
337 |
if partialcommit: |
7398
26695dd703d8
[repository api] definitly kill usage of word 'pool' to refer to connections set used by a session
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7385
diff
changeset
|
338 |
# commit+set_cnxset instead of commit(free_cnxset=False) to let |
26695dd703d8
[repository api] definitly kill usage of word 'pool' to refer to connections set used by a session
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7385
diff
changeset
|
339 |
# other a chance to get our connections set |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
340 |
self._cw.commit() |
7398
26695dd703d8
[repository api] definitly kill usage of word 'pool' to refer to connections set used by a session
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7385
diff
changeset
|
341 |
self._cw.set_cnxset() |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
342 |
except ValidationError, exc: |
7385
29f050e39b09
[datafeed] propagate raise_on_error to parser's process method
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7379
diff
changeset
|
343 |
if raise_on_error: |
29f050e39b09
[datafeed] propagate raise_on_error to parser's process method
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7379
diff
changeset
|
344 |
raise |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
345 |
if partialcommit: |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
346 |
self.source.error('Skipping %s because of validation error %s' % (args, exc)) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
347 |
self._cw.rollback() |
7398
26695dd703d8
[repository api] definitly kill usage of word 'pool' to refer to connections set used by a session
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7385
diff
changeset
|
348 |
self._cw.set_cnxset() |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
349 |
error = True |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
350 |
else: |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
351 |
raise |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
352 |
return error |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
353 |
|
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
354 |
def parse(self, url): |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
355 |
if url.startswith('http'): |
7727
70ea754d3e04
[server] host mapping is better named url mapping (closes #1892461)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents:
7708
diff
changeset
|
356 |
from cubicweb.sobjects.parsers import URL_MAPPING |
70ea754d3e04
[server] host mapping is better named url mapping (closes #1892461)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents:
7708
diff
changeset
|
357 |
for mappedurl in URL_MAPPING: |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
358 |
if url.startswith(mappedurl): |
7727
70ea754d3e04
[server] host mapping is better named url mapping (closes #1892461)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents:
7708
diff
changeset
|
359 |
url = url.replace(mappedurl, URL_MAPPING[mappedurl], 1) |
7378
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
360 |
break |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
361 |
self.source.info('GET %s', url) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
362 |
stream = _OPENER.open(url) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
363 |
elif url.startswith('file://'): |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
364 |
stream = open(url[7:]) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
365 |
else: |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
366 |
stream = StringIO.StringIO(url) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
367 |
return self.parse_etree(etree.parse(stream).getroot()) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
368 |
|
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
369 |
def parse_etree(self, document): |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
370 |
return [(document,)] |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
371 |
|
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
372 |
def process_item(self, *args): |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
373 |
raise NotImplementedError |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
374 |
|
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
375 |
# use a cookie enabled opener to use session cookie if any |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
376 |
_OPENER = urllib2.build_opener() |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
377 |
try: |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
378 |
from logilab.common import urllib2ext |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
379 |
_OPENER.add_handler(urllib2ext.HTTPGssapiAuthHandler()) |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
380 |
except ImportError: # python-kerberos not available |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
381 |
pass |
86a1ae289f05
[datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7351
diff
changeset
|
382 |
_OPENER.add_handler(urllib2.HTTPCookieProcessor(CookieJar())) |