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"""This generator provides rule-based entry mappings."""
import Bcfg2.Options
import Bcfg2.Server.Plugin
import Bcfg2.Server.Plugins.Rules
class Defaults(Bcfg2.Server.Plugins.Rules.Rules,
Bcfg2.Server.Plugin.GoalValidator):
"""Set default attributes on bound entries"""
__author__ = 'bcfg-dev@mcs.anl.gov'
options = Bcfg2.Server.Plugin.PrioDir.options + [
Bcfg2.Options.BooleanOption(
cf=("defaults", "replace_name"), dest="defaults_replace_name",
help="Replace %{name} in attributes with name of target entry")]
# Rules is a Generator that happens to implement all of the
# functionality we want, so we overload it, but Defaults should
# _not_ handle any entries; it does its stuff in the structure
# validation phase. so we overload Handle(s)Entry and HandleEvent
# to ensure that Defaults handles no entries, even though it's a
# Generator.
def HandlesEntry(self, entry, metadata):
return False
def HandleEvent(self, event):
Bcfg2.Server.Plugin.XMLDirectoryBacked.HandleEvent(self, event)
def validate_goals(self, metadata, config):
""" Apply defaults """
for struct in config.getchildren():
for entry in struct.getchildren():
try:
self.BindEntry(entry, metadata)
except Bcfg2.Server.Plugin.PluginExecutionError:
# either no matching defaults (which is okay),
# or multiple matching defaults (which is not
# okay, but is logged). either way, we don't
# care about the error.
pass
@property
def _regex_enabled(self):
""" Defaults depends on regex matching, so force it enabled """
return True
@property
def _replace_name_enabled(self):
""" Return True if the replace_name feature is enabled,
False otherwise """
return Bcfg2.Options.setup.defaults_replace_name
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