author | Aurelien Campeas <aurelien.campeas@logilab.fr> |
Tue, 12 Apr 2011 17:32:06 +0200 | |
branch | stable |
changeset 7212 | 040d3597444f |
parent 7049 | f2ae6202754c |
child 7399 | 972ed1843bd8 |
child 7525 | 1f6839019e6a |
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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"""hooks for repository sources synchronization""" |
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from socket import gethostname |
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from yams.schema import role_name |
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from cubicweb import ValidationError |
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from cubicweb.selectors import is_instance |
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from cubicweb.server import SOURCE_TYPES, hook |
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class SourceHook(hook.Hook): |
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__abstract__ = True |
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category = 'cw.sources' |
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class SourceAddedOp(hook.Operation): |
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def postcommit_event(self): |
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self.session.repo.add_source(self.entity) |
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class SourceAddedHook(SourceHook): |
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__regid__ = 'cw.sources.added' |
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__select__ = SourceHook.__select__ & is_instance('CWSource') |
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events = ('after_add_entity',) |
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def __call__(self): |
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try: |
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sourcecls = SOURCE_TYPES[self.entity.type] |
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except KeyError: |
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msg = self._cw._('unknown source type') |
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raise ValidationError(self.entity.eid, |
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{role_name('type', 'subject'): msg}) |
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sourcecls.check_conf_dict(self.entity.eid, self.entity.host_config, |
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fail_if_unknown=not self._cw.vreg.config.repairing) |
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SourceAddedOp(self._cw, entity=self.entity) |
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class SourceRemovedOp(hook.Operation): |
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def precommit_event(self): |
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self.session.repo.remove_source(self.uri) |
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class SourceRemovedHook(SourceHook): |
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__regid__ = 'cw.sources.removed' |
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__select__ = SourceHook.__select__ & is_instance('CWSource') |
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events = ('before_delete_entity',) |
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def __call__(self): |
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if self.entity.name == 'system': |
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raise ValidationError(self.entity.eid, {None: 'cant remove system source'}) |
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SourceRemovedOp(self._cw, uri=self.entity.name) |
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class SourceUpdatedOp(hook.DataOperationMixIn, hook.Operation): |
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def precommit_event(self): |
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self.__processed = [] |
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for source in self.get_data(): |
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conf = source.repo_source.check_config(source) |
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self.__processed.append( (source, conf) ) |
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def postcommit_event(self): |
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for source, conf in self.__processed: |
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source.repo_source.update_config(source, conf) |
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class SourceUpdatedHook(SourceHook): |
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__regid__ = 'cw.sources.configupdate' |
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__select__ = SourceHook.__select__ & is_instance('CWSource') |
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events = ('after_update_entity',) |
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def __call__(self): |
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if 'config' in self.entity.cw_edited: |
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SourceUpdatedOp.get_instance(self._cw).add_data(self.entity) |
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class SourceHostConfigUpdatedHook(SourceHook): |
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__regid__ = 'cw.sources.hostconfigupdate' |
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__select__ = SourceHook.__select__ & is_instance('CWSourceHostConfig') |
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events = ('after_add_entity', 'after_update_entity', 'before_delete_entity',) |
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def __call__(self): |
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if self.entity.match(gethostname()): |
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if self.event == 'after_update_entity' and \ |
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not 'config' in self.entity.cw_edited: |
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return |
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try: |
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97 |
SourceUpdatedOp.get_instance(self._cw).add_data(self.entity.cwsource) |
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98 |
except IndexError: |
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99 |
# XXX no source linked to the host config yet |
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100 |
pass |
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101 |
|
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102 |
|
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103 |
# source mapping synchronization. Expect cw_for_source/cw_schema are immutable |
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104 |
# relations (i.e. can't change from a source or schema to another). |
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105 |
|
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106 |
class SourceMappingDeleteHook(SourceHook): |
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107 |
"""check cw_for_source and cw_schema are immutable relations |
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108 |
|
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109 |
XXX empty delete perms would be enough? |
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110 |
""" |
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111 |
__regid__ = 'cw.sources.delschemaconfig' |
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112 |
__select__ = SourceHook.__select__ & hook.match_rtype('cw_for_source', 'cw_schema') |
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113 |
events = ('before_add_relation',) |
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114 |
def __call__(self): |
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115 |
if not self._cw.added_in_transaction(self.eidfrom): |
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116 |
msg = self._cw._("can't change this relation") |
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117 |
raise ValidationError(self.eidfrom, {self.rtype: msg}) |
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118 |
|
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119 |
|
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120 |
class SourceMappingChangedOp(hook.DataOperationMixIn, hook.Operation): |
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121 |
def check_or_update(self, checkonly): |
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122 |
session = self.session |
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123 |
# take care, can't call get_data() twice |
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124 |
try: |
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125 |
data = self.__data |
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126 |
except AttributeError: |
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127 |
data = self.__data = self.get_data() |
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128 |
for schemacfg, source in data: |
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129 |
if source is None: |
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130 |
source = schemacfg.cwsource.repo_source |
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131 |
if session.added_in_transaction(schemacfg.eid): |
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132 |
if not session.deleted_in_transaction(schemacfg.eid): |
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133 |
source.add_schema_config(schemacfg, checkonly=checkonly) |
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134 |
elif session.deleted_in_transaction(schemacfg.eid): |
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135 |
source.delete_schema_config(schemacfg, checkonly=checkonly) |
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136 |
else: |
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137 |
source.update_schema_config(schemacfg, checkonly=checkonly) |
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138 |
|
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139 |
def precommit_event(self): |
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140 |
self.check_or_update(True) |
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141 |
|
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142 |
def postcommit_event(self): |
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143 |
self.check_or_update(False) |
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144 |
|
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145 |
|
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146 |
class SourceMappingChangedHook(SourceHook): |
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147 |
__regid__ = 'cw.sources.schemaconfig' |
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148 |
__select__ = SourceHook.__select__ & is_instance('CWSourceSchemaConfig') |
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149 |
events = ('after_add_entity', 'after_update_entity') |
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150 |
def __call__(self): |
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151 |
if self.event == 'after_add_entity' or ( |
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152 |
self.event == 'after_update_entity' and 'options' in self.entity.cw_edited): |
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153 |
SourceMappingChangedOp.get_instance(self._cw).add_data( |
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154 |
(self.entity, None) ) |
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155 |
|
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156 |
class SourceMappingDeleteHook(SourceHook): |
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157 |
__regid__ = 'cw.sources.delschemaconfig' |
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158 |
__select__ = SourceHook.__select__ & hook.match_rtype('cw_for_source') |
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159 |
events = ('before_delete_relation',) |
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160 |
def __call__(self): |
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161 |
SourceMappingChangedOp.get_instance(self._cw).add_data( |
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162 |
(self._cw.entity_from_eid(self.eidfrom), |
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163 |
self._cw.entity_from_eid(self.eidto)) ) |