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àAq§Å£ßƒïa–ßi~”Še¶¥8 ¸ÛW1hßÞ ë    simport tuned.logs
from configobj import ConfigObj, ConfigObjError
from validate import Validator
from tuned.exceptions import TunedException
import tuned.consts as consts
from tuned.utils.commands import commands

__all__ = ["GlobalConfig"]

log = tuned.logs.get()

class GlobalConfig():

	global_config_spec = ["dynamic_tuning = boolean(default=%s)" % consts.CFG_DEF_DYNAMIC_TUNING,
		"sleep_interval = integer(default=%s)" % consts.CFG_DEF_SLEEP_INTERVAL,
		"update_interval = integer(default=%s)" % consts.CFG_DEF_UPDATE_INTERVAL,
		"recommend_command = boolean(default=%s)" % consts.CFG_DEF_RECOMMEND_COMMAND]

	def __init__(self,config_file = consts.GLOBAL_CONFIG_FILE):
		self._cfg = {}
		self.load_config(file_name=config_file)
		self._cmd = commands()

	def load_config(self, file_name = consts.GLOBAL_CONFIG_FILE):
		"""
		Loads global configuration file.
		"""
		log.debug("reading and parsing global configuration file '%s'" % file_name)
		try:
			self._cfg = ConfigObj(file_name, configspec = self.global_config_spec, raise_errors = True, \
				file_error = True, list_values = False, interpolation = False)
		except IOError as e:
			raise TunedException("Global tuned configuration file '%s' not found." % file_name)
		except ConfigObjError as e:
			raise TunedException("Error parsing global tuned configuration file '%s'." % file_name)
		vdt = Validator()
		if (not self._cfg.validate(vdt, copy=True)):
			raise TunedException("Global tuned configuration file '%s' is not valid." % file_name)

	def get(self, key, default = None):
		return self._cfg.get(key, default)

	def get_bool(self, key, default = None):
		if self._cmd.get_bool(self.get(key, default)) == "1":
			return True
		return False

	def set(self, key, value):
		self._cfg[key] = value

	def get_size(self, key, default = None):
		val = self.get(key)
		if val is None:
			return default
		ret = self._cmd.get_size(val)
		if ret is None:
			log.error("Error parsing value '%s', using '%s'." %(val, default))
			return default
		else:
			return ret
     uˆËàƒe¹¾Þ ô    u# -*- coding: utf-8 -*-
"""
    jinja2.visitor
    ~~~~~~~~~~~~~~

    This module implements a visitor for the nodes.

    :copyright: (c) 2010 by the Jinja Team.
    :license: BSD.
"""
from jinja2.nodes import Node


class NodeVisitor(object):
    """Walks the abstract syntax tree and call visitor functions for every
    node found.  The visitor functions may return values which will be
    forwarded by the `visit` method.

    Per default the visitor functions for the nodes are ``'visit_'`` +
    class name of the node.  So a `TryFinally` node visit function would
    be `visit_TryFinally`.  This behavior can be changed by overriding
    the `get_visitor` function.  If no visitor function exists for a node
    (return value `None`) the `generic_visit` visitor is used instead.
    """

    def get_visitor(self, node):
        """Return the visitor function for this node or `None` if no visitor
        exists for this node.  In that case the generic visit function is
        used instead.
        """
        method = 'visit_' + node.__class__.__name__
        return getattr(self, method, None)

    def visit(self, node, *args, **kwargs):
        """Visit a node."""
        f = self.get_visitor(node)
        if f is not None:
            return f(node, *args, **kwargs)
        return self.generic_visit(node, *args, **kwargs)

    def generic_visit(self, node, *args, **kwargs):
        """Called if no explicit visitor function exists for a node."""
        for node in node.iter_child_nodes():
            self.visit(node, *args, **kwargs)


class NodeTransformer(NodeVisitor):
    """Walks the abstract syntax tree and allows modifications of nodes.

    The `NodeTransformer` will walk the AST and use the return value of the
    visitor functions to replace or remove the old node.  If the return
    value of the visitor function is `None` the node will be removed
    from the previous location otherwise it's replaced with the