Gecko [ sachasauda.akalacademy.ac.in ]

Name	Size	Permission
Errors.py	4.26 KB	-rwxr-xr-x
Errors.pyc	9.08 KB	-rw-r--r--
__init__.py	304.1 KB	-rwxr-xr-x
__init__.pyc	199.78 KB	-rw-r--r--
callbacks.py	5.64 KB	-rwxr-xr-x
callbacks.pyc	6.23 KB	-rw-r--r--
comps.py	31.59 KB	-rwxr-xr-x
comps.pyc	26.87 KB	-rw-r--r--
config.py	49.89 KB	-rwxr-xr-x
config.pyc	48.02 KB	-rw-r--r--
constants.py	4.52 KB	-rwxr-xr-x
constants.pyc	3.42 KB	-rw-r--r--
depsolve.py	74.05 KB	-rwxr-xr-x
depsolve.pyc	46.91 KB	-rw-r--r--
drpm.py	12.85 KB	-rwxr-xr-x
drpm.pyc	10.83 KB	-rw-r--r--
failover.py	5 KB	-rwxr-xr-x
failover.pyc	5.24 KB	-rw-r--r--
fssnapshots.py	10.16 KB	-rwxr-xr-x
fssnapshots.pyc	9.75 KB	-rw-r--r--
history.py	61.13 KB	-rwxr-xr-x
history.pyc	53.31 KB	-rw-r--r--
i18n.py	20.44 KB	-rwxr-xr-x
i18n.pyc	16.05 KB	-rw-r--r--
igroups.py	9.31 KB	-rwxr-xr-x
igroups.pyc	10.22 KB	-rw-r--r--
logginglevels.py	7.9 KB	-rwxr-xr-x
logginglevels.pyc	6.51 KB	-rw-r--r--
mdparser.py	6.26 KB	-rwxr-xr-x
mdparser.pyc	7.58 KB	-rw-r--r--
metalink.py	9.19 KB	-rwxr-xr-x
metalink.pyc	8.84 KB	-rw-r--r--
misc.py	39.57 KB	-rwxr-xr-x
misc.pyc	39.58 KB	-rw-r--r--
packageSack.py	40.79 KB	-rwxr-xr-x
packageSack.pyc	41.88 KB	-rw-r--r--
packages.py	84.1 KB	-rwxr-xr-x
packages.pyc	84.51 KB	-rw-r--r--
parser.py	7.97 KB	-rwxr-xr-x
parser.pyc	6.5 KB	-rw-r--r--
pgpmsg.py	53.5 KB	-rwxr-xr-x
pgpmsg.pyc	38.27 KB	-rw-r--r--
pkgtag_db.py	4.86 KB	-rwxr-xr-x
pkgtag_db.pyc	5.06 KB	-rw-r--r--
plugins.py	28.1 KB	-rwxr-xr-x
plugins.pyc	29.1 KB	-rw-r--r--
repoMDObject.py	11.23 KB	-rwxr-xr-x
repoMDObject.pyc	9.17 KB	-rw-r--r--
repos.py	16.53 KB	-rwxr-xr-x
repos.pyc	17.38 KB	-rw-r--r--
rpmsack.py	70.25 KB	-rwxr-xr-x
rpmsack.pyc	58.36 KB	-rw-r--r--
rpmtrans.py	24.84 KB	-rwxr-xr-x
rpmtrans.pyc	22.54 KB	-rw-r--r--
sqlitesack.py	69.76 KB	-rwxr-xr-x
sqlitesack.pyc	53.75 KB	-rw-r--r--
sqlutils.py	6.27 KB	-rwxr-xr-x
sqlutils.pyc	5.6 KB	-rw-r--r--
transactioninfo.py	33.78 KB	-rwxr-xr-x
transactioninfo.pyc	30.29 KB	-rw-r--r--
update_md.py	25.9 KB	-rwxr-xr-x
update_md.pyc	21.72 KB	-rw-r--r--
updateinfo.py	18.29 KB	-rwxr-xr-x
updateinfo.pyc	16.36 KB	-rw-r--r--
yumRepo.py	83.85 KB	-rwxr-xr-x
yumRepo.pyc	64.83 KB	-rw-r--r--

Code Editor : failover.py

#!/usr/bin/python
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# Copyright 2003 Jack Neely, NC State University

# Here we define a base class for failover methods.  The idea here is that each
# failover method uses a class derived from the base class so yum only has to
# worry about calling get_serverurl() and server_failed() and these classes will 
# figure out which URL to cough up based on the failover method.

"""Classes for handling failovers for server URLs."""

import random

class baseFailOverMethod:
    """A base class to provide a failover to switch to a new server if
    the current one fails.
    """
    def __init__(self, repo):
        self.repo = repo
        self.failures = 0
    
    def get_serverurl(self, i=None):
        """Return a server URL based on this failover method, or None
        if there is a complete failure.  This method should always be
        used to translate an index into a URL, as this object may
        change how indexes map.

:param i: if given, this is the index of the server URL to
           return, instead of using the failures counter
        :return: the next server URL
        """
        return None
        
    def server_failed(self):
        """Notify the failover method that the current server has
        failed.
        """
        self.failures = self.failures + 1
        
    def reset(self, i=0):
        """Reset the failures counter to the given index.

:param i: the index to reset the failures counter to
        """
        self.failures = i

def get_index(self):
        """Return the current number of failures, which is also the
        current index into the list of URLs that this object
        represents.  :fun:`get_serverurl` should always be used to
        translate an index into a URL, as this object may change how
        indexes map.

:return: the current number of failures, which is also the
           current index   
        """
        return self.failures
   
    def len(self):
        """Return the total number of URLs available to cycle through
        in this object.

:return: the total number of URLs available
        """
        return len(self.repo.urls)

class priority(baseFailOverMethod):
    """A class to provide a failover to switch to a new server
    if the current one fails.  This classes chooses the next server
    based on the first success in the list of servers.
    """
    def get_serverurl(self, i=None):
        """Return the next successful server URL in the list, or None
        if there is a complete failure.  This method should always be
        used to translate an index into a URL, as this object may
        change how indexes map.

:param i: if given, this is the index of the server URL to
           return, instead of using the failures counter
        :return: the next server URL
        """
        if i == None:
            index = self.failures
        else:
            index = i
        
        if index >= len(self.repo.urls):
            return None
        
        return self.repo.urls[index]
        
        
    
class roundRobin(baseFailOverMethod):
    """A class to provide a failover to switch to a new server
    if the current one fails.  When an object of this class is
    created, it selects a random place in the list of URLs to begin
    with, then each time :func:`get_serveurl` is called, the next URL
    in the list is returned, cycling back to the beginning of the list
    after the end is reached.
    """
    def __init__(self, repo):
        baseFailOverMethod.__init__(self, repo)
        random.seed()
        self.offset = random.randint(0, 37)
    
    def get_serverurl(self, i=None):
        """Return the next successful server URL in the list, using
        the round robin scheme, or None if there is a complete
        failure.  This method should always be used to translate an
        index into a URL, as this object may change how indexes map.

# SDG

${this.title}

Code Editor : failover.py