author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Thu, 22 Sep 2011 19:13:58 +0200 | |
branch | stable |
changeset 7838 | ea1360938033 |
parent 6957 | ffda12be2e9f |
child 7827 | 9bbf83f68bcc |
permissions | -rw-r--r-- |
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# copyright 2003-2011 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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"""data source related entities""" |
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|
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__docformat__ = "restructuredtext en" |
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|
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import re |
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from socket import gethostname |
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from logilab.common.textutils import text_to_dict |
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from logilab.common.configuration import OptionError |
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from cubicweb import ValidationError |
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from cubicweb.entities import AnyEntity, fetch_config |
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class _CWSourceCfgMixIn(object): |
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@property |
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def dictconfig(self): |
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return self.config and text_to_dict(self.config) or {} |
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def update_config(self, skip_unknown=False, **config): |
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from cubicweb.server import SOURCE_TYPES |
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from cubicweb.server.serverconfig import (SourceConfiguration, |
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generate_source_config) |
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cfg = self.dictconfig |
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cfg.update(config) |
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options = SOURCE_TYPES[self.type].options |
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sconfig = SourceConfiguration(self._cw.vreg.config, options=options) |
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for opt, val in cfg.iteritems(): |
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try: |
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sconfig.set_option(opt, val) |
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except OptionError: |
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if skip_unknown: |
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continue |
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raise |
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cfgstr = unicode(generate_source_config(sconfig), self._cw.encoding) |
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self.set_attributes(config=cfgstr) |
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class CWSource(_CWSourceCfgMixIn, AnyEntity): |
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__regid__ = 'CWSource' |
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fetch_attrs, fetch_order = fetch_config(['name', 'type']) |
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@property |
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def host_config(self): |
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dictconfig = self.dictconfig |
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host = gethostname() |
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for hostcfg in self.host_configs: |
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if hostcfg.match(host): |
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self.info('matching host config %s for source %s', |
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hostcfg.match_host, self.name) |
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dictconfig.update(hostcfg.dictconfig) |
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return dictconfig |
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@property |
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def host_configs(self): |
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return self.reverse_cw_host_config_of |
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def init_mapping(self, mapping): |
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for key, options in mapping: |
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if isinstance(key, tuple): # relation definition |
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assert len(key) == 3 |
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restrictions = ['X relation_type RT, RT name %(rt)s'] |
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kwargs = {'rt': key[1]} |
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if key[0] != '*': |
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restrictions.append('X from_entity FT, FT name %(ft)s') |
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kwargs['ft'] = key[0] |
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if key[2] != '*': |
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84 |
restrictions.append('X to_entity TT, TT name %(tt)s') |
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85 |
kwargs['tt'] = key[2] |
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86 |
rql = 'Any X WHERE %s' % ','.join(restrictions) |
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87 |
schemarset = self._cw.execute(rql, kwargs) |
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88 |
elif key[0].isupper(): # entity type |
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89 |
schemarset = self._cw.execute('CWEType X WHERE X name %(et)s', |
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90 |
{'et': key}) |
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91 |
else: # relation type |
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92 |
schemarset = self._cw.execute('CWRType X WHERE X name %(rt)s', |
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93 |
{'rt': key}) |
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94 |
for schemaentity in schemarset.entities(): |
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95 |
self._cw.create_entity('CWSourceSchemaConfig', |
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96 |
cw_for_source=self, |
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97 |
cw_schema=schemaentity, |
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98 |
options=options) |
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99 |
|
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100 |
@property |
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101 |
def repo_source(self): |
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102 |
"""repository only property, not available from the web side (eg |
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103 |
self._cw is expected to be a server session) |
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104 |
""" |
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105 |
return self._cw.repo.sources_by_eid[self.eid] |
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106 |
|
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107 |
|
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108 |
class CWSourceHostConfig(_CWSourceCfgMixIn, AnyEntity): |
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109 |
__regid__ = 'CWSourceHostConfig' |
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110 |
fetch_attrs, fetch_order = fetch_config(['match_host', 'config']) |
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111 |
|
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112 |
@property |
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113 |
def cwsource(self): |
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114 |
return self.cw_host_config_of[0] |
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115 |
|
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116 |
def match(self, hostname): |
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117 |
return re.match(self.match_host, hostname) |
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118 |
|
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119 |
|
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120 |
class CWSourceSchemaConfig(AnyEntity): |
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121 |
__regid__ = 'CWSourceSchemaConfig' |
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122 |
fetch_attrs, fetch_order = fetch_config(['cw_for_source', 'cw_schema', 'options']) |
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123 |
|
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124 |
def dc_title(self): |
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125 |
return self._cw._(self.__regid__) + ' #%s' % self.eid |
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126 |
|
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127 |
@property |
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128 |
def schema(self): |
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129 |
return self.cw_schema[0] |
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130 |
|
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131 |
@property |
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132 |
def cwsource(self): |
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133 |
return self.cw_for_source[0] |