<reponame>rootfs-analytics/openvstorage
# Copyright 2014 CloudFounders NV
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
Contains the loghandler module
"""

import logging
import logging.handlers
import pwd
import grp
import os
from ConfigParser import RawConfigParser


def _ignore_formatting_errors():
    """
    Decorator to ignore formatting errors during logging
    """
    def wrap(f):
        """
        Wrapper function
        """
        def new_function(self, msg, *args, **kwargs):
            """
            Wrapped function
            """
            try:
                _ = msg % args
                return f(self, msg, *args, **kwargs)
            except TypeError as exception:
                if 'not all arguments converted during string formatting' in str(exception):
                    return f(self, 'String format error, original message: {0}'.format(msg))
                else:
                    raise
        return new_function
    return wrap


class LogHandler(object):
    """
    Log handler
    """

    targets = {'lib': 'lib',
               'api': 'api',
               'extensions': 'extensions',
               'dal': 'dal',
               'celery': 'celery',
               'arakoon': 'arakoon',
               'support': 'support'}

    def __init__(self, source, name=None):
        """
        Initializes the logger
        """

        filename = '/opt/OpenvStorage/config/main.cfg'
        parser = RawConfigParser()
        parser.read(filename)

        if name is None:
            name = parser.get('logging', 'default_name')

        log_filename = '{0}/{1}.log'.format(
            parser.get('logging', 'path'),
            LogHandler.targets[source] if source in LogHandler.targets else parser.get('logging', 'default_file')
        )

        uid = pwd.getpwnam('ovs').pw_uid
        gid = grp.getgrnam('ovs').gr_gid
        if not os.path.exists(log_filename):
            open(log_filename, 'a').close()
            os.chmod(log_filename, 0o666)


        formatter = logging.Formatter('%(asctime)s - [%(levelname)s] - [{0}] - [%(name)s] - %(message)s'.format(source))
        handler = logging.FileHandler(log_filename)
        handler.setFormatter(formatter)

        self.logger = logging.getLogger(name)
        self.logger.propagate = True
        self.logger.setLevel(getattr(logging, parser.get('logging', 'level')))
        self.logger.addHandler(handler)

    @_ignore_formatting_errors()
    def info(self, msg, *args, **kwargs):
        """ Info """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.info(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def error(self, msg, *args, **kwargs):
        """ Error """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.error(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def debug(self, msg, *args, **kwargs):
        """ Debug """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.debug(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def warning(self, msg, *args, **kwargs):
        """ Warning """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.warning(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def log(self, msg, *args, **kwargs):
        """ Log """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.log(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def critical(self, msg, *args, **kwargs):
        """ Critical """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.critical(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def exception(self, msg, *args, **kwargs):
        """ Exception """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.exception(msg, *args, **kwargs)

# Copyright 2014 CloudFounders NV
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
Contains the loghandler module
"""

import logging
import logging.handlers
import pwd
import grp
import os
from ConfigParser import RawConfigParser


def _ignore_formatting_errors():
    """
    Decorator to ignore formatting errors during logging
    """
    def wrap(f):
        """
        Wrapper function
        """
        def new_function(self, msg, *args, **kwargs):
            """
            Wrapped function
            """
            try:
                _ = msg % args
                return f(self, msg, *args, **kwargs)
            except TypeError as exception:
                if 'not all arguments converted during string formatting' in str(exception):
                    return f(self, 'String format error, original message: {0}'.format(msg))
                else:
                    raise
        return new_function
    return wrap


class LogHandler(object):
    """
    Log handler
    """

    targets = {'lib': 'lib',
               'api': 'api',
               'extensions': 'extensions',
               'dal': 'dal',
               'celery': 'celery',
               'arakoon': 'arakoon',
               'support': 'support'}

    def __init__(self, source, name=None):
        """
        Initializes the logger
        """

        filename = '/opt/OpenvStorage/config/main.cfg'
        parser = RawConfigParser()
        parser.read(filename)

        if name is None:
            name = parser.get('logging', 'default_name')

        log_filename = '{0}/{1}.log'.format(
            parser.get('logging', 'path'),
            LogHandler.targets[source] if source in LogHandler.targets else parser.get('logging', 'default_file')
        )

        uid = pwd.getpwnam('ovs').pw_uid
        gid = grp.getgrnam('ovs').gr_gid
        if not os.path.exists(log_filename):
            open(log_filename, 'a').close()
            os.chmod(log_filename, 0o666)


        formatter = logging.Formatter('%(asctime)s - [%(levelname)s] - [{0}] - [%(name)s] - %(message)s'.format(source))
        handler = logging.FileHandler(log_filename)
        handler.setFormatter(formatter)

        self.logger = logging.getLogger(name)
        self.logger.propagate = True
        self.logger.setLevel(getattr(logging, parser.get('logging', 'level')))
        self.logger.addHandler(handler)

    @_ignore_formatting_errors()
    def info(self, msg, *args, **kwargs):
        """ Info """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.info(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def error(self, msg, *args, **kwargs):
        """ Error """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.error(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def debug(self, msg, *args, **kwargs):
        """ Debug """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.debug(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def warning(self, msg, *args, **kwargs):
        """ Warning """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.warning(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def log(self, msg, *args, **kwargs):
        """ Log """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.log(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def critical(self, msg, *args, **kwargs):
        """ Critical """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.critical(msg, *args, **kwargs)

    @_ignore_formatting_errors()
    def exception(self, msg, *args, **kwargs):
        """ Exception """
        if 'print_msg' in kwargs:
            del kwargs['print_msg']
            print msg
        return self.logger.exception(msg, *args, **kwargs)
# Copyright 2014 CloudFounders NV # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # #     http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. Contains the loghandler module Decorator to ignore formatting errors during logging Wrapper function Wrapped function Log handler Initializes the logger Info Error Debug Warning Log Critical Exception