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Clsloader
Action : was.clsloader (Category : was, Name : clsloader, By : kikonf)
Complete Name : was.clsloader.by.kikonf Version : 5.0 License : Modified BSD License Purpose of the was category : Easy to customize. This category use in background the wsadmin command in jython mode (through AdminConfig, AdminControl and AdminTask), to drive WebSphere Application Server ® configuration. You can use it to manage the whole WebSphere ® architecture. Purpose of this clsloader plugin : Change a given Classloader Mode and Policy The following shows the main Source Code File for the Action : was.clsloader Toggle lines
## Copyright (c) 2008, Patrick Germain Placidoux
## All rights reserved.
##
## This file is part of Kikonf Public Software.
##
## Kikonf Public Software is released under the modified BSD License,
## which should accompany it or any part of it in the file "COPYING".
## If you do not have this file you can access the license
## through the WWW at http://www.kikonf.org/license/bsd/license.txt.
##
## Home: http://www.kikonf.org
## Contact: kikonf@gmx.com
from actions.was.tools import *
class Clsloader(wasAction):
def extract(self, scope_attrs=None, **keywords):
self_funct='extract'
self.verbose(scope_attrs)
dct={'server': None, 'node': None, 'application': None, 'war': None}
dct.update(scope_attrs)
scope_attrs=dct
scope_id, scope_attrs, scope=self.getScope(scope_attrs=scope_attrs, indent=self.getIndent())
indent=self.getIndent() + 3*' '
policy=mode=None
if scope_attrs.has_key('application') and scope_attrs['application']!=None:
verbose('deployedObject retreiving.', level=self.getVerbose(), ifLevel=4, indent=indent, logFile=self.getLogFile())
dep=AdminConfig.showAttribute(scope_id, 'deployedObject')
verbose('DeployedObject listed.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
if scope_attrs['war']==None:
policy=AdminConfig.showAttribute(dep, 'warClassLoaderPolicy')
verbose('DeployedObject listed.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
clloader = AdminConfig.showAttribute(dep, 'classloader')
verbose('Classloader retreived.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
mode=AdminConfig.showAttribute(clloader, 'mode')
else:
mods = split(AdminConfig.showAttribute(dep, 'modules'))
uris=[]
found=False
for mod in mods:
uri=AdminConfig.showAttribute(mod, 'uri')
uris.append(uri)
if uri==scope_attrs['war']:
found=True
break
if not found:raise xception.kikonfActionSystemException(self, self_funct, 'Web Module:' + scope_attrs['war'] + ', of Application:' + scope_attrs['application'] + ' not found ! Found uris are:' + str(uris) + '.')
# AdminConfig.showAttribute(mod, 'classloaderMode')
clloader = AdminConfig.showAttribute(mod, 'classloader')
if clloader==None:
xception.kikonfActionInformation(self, self_funct, 'Web Module:' + scope_attrs['war'] + ', of Application:' + scope_attrs['application'] + ' has no specific Class Loader definition.').warn(self.getVerbose())
return
verbose('Classloader retreived.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
mode=AdminConfig.showAttribute(clloader, 'mode')
else:
cps=split(AdminConfig.showAttribute(scope_id, 'components'))
for cp in cps:
if cp.startswith(scope_attrs['server']):
verbose('Component retreived.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
classpaths=getShowAsDict(AdminConfig.show(cp))
policy=classpaths['applicationClassLoadingMode']
mode=classpaths['applicationClassLoaderPolicy']
clsloader_node=self.newTop() #-- because in extract mode, each call returns a new blank top node.
clsloader_node.setAttrs(mode=mode, policy=policy)
mkNodeScope(clsloader_node, scope_attrs, isUnique=True) #-- creates a scope node.
def inject(self):
self_funct='inject'
clsloader_node = self.getTop()
clsloader_attrs = clsloader_node.getAttrs()
scope_id, scope_attrs, scope=self.getScope(parent_node=clsloader_node, indent=self.getIndent()) #-- Retreives scope
self.verbose(scope_attrs)
indent=self.getIndent() + 3*' '
if scope_attrs['application']!=None:
dep=AdminConfig.showAttribute(scope_id, 'deployedObject')
verbose('Components retreived.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
if scope_attrs['war']==None:
verbose('warClassLoaderPolicy modifying.', level=self.getVerbose(), ifLevel=4, indent=indent, logFile=self.getLogFile())
AdminConfig.modify(dep, 'warClassLoaderPolicy', clsloader_attrs.policy)
verbose('WarClassLoaderPolicy modified.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
clloader = AdminConfig.showAttribute(dep, 'classloader')
verbose('classloader modifying.', level=self.getVerbose(), ifLevel=4, indent=indent, logFile=self.getLogFile())
AdminConfig.modify(clloader, 'mode', clsloader_attrs.mode)
verbose('Classloader modified.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
else:
mods = split(AdminConfig.showAttribute(dep, 'modules'))
uris=[]
found=False
for mod in mods:
uri=AdminConfig.showAttribute(mod, 'uri')
uris.append(uri)
if AdminConfig.showAttribute(mod, 'uri')==scope_attrs['war']:
found=True
break
if not found:raise xception.kikonfActionSystemException(self, self_funct, 'Web Module:' + scope_attrs['war'] + ', of Application:' + scope_attrs['application'] + ' not found ! Found uris are:' + str(uris) + '.')
clloader = AdminConfig.showAttribute(mod, 'classloader')
if clloader==None:clloader = AdminConfig.create('Classloader', mod, 'libraries', [, ['mode', 'PARENT_LAST']], 'classloader')
verbose('classloader modifying.', level=self.getVerbose(), ifLevel=4, indent=indent, logFile=self.getLogFile())
AdminConfig.modify(clloader, [['mode', clsloader_attrs.mode]])
verbose('Classloader modified.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
else:
cps=split(AdminConfig.showAttribute(scope_id, 'components'))
for cp in cps:
if cp.startswith(scope_attrs['server']):
verbose('components modifying.', level=self.getVerbose(), ifLevel=4, indent=indent, logFile=self.getLogFile())
AdminConfig.modify(cp, [['applicationClassLoadingMode', clsloader_attrs.mode], ['applicationClassLoaderPolicy', clsloader_attrs.policy]])
verbose('Components modified.', level=self.getVerbose(), ifLevel=3, indent=indent, logFile=self.getLogFile())
def verbose(self, scope_attrs):
scope=str(scope_attrs).replace("'", '')[1:-1]
verbose('JVM ClassLoader at scope:' + scope + '.', level=self.getVerbose(), ifLevel=2, indent=self.getIndent())
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