class BaseEngine(object):
version = "0.0.--.0.0"
description = "Unimplemented description field."
__metaclass__ = RegisterEngine
__depends__ = {}
__exposes__ = {}
def __init__(self, *args, **kw):
kwargs = kw.get('kwargs', {})
if "app_path" not in kwargs or kwargs["app_path"] is None:
kwargs["app_path"] = os.path.join(GlobalSettings.installPath, self.__class__.__name__)
if(os.path.exists(kwargs["app_path"])): self.installed = True
else: self.installed = False
self.app_path = kwargs["app_path"]
del kwargs["app_path"]
for key in kwargs.keys(): self.__setattr__(key, kwargs[key])
self.fileHelper = FileHelperObject(self.__class__.__name__)
def resolveDepends(self):
__newDepends = dict()
for pack_name in self.__depends__.keys():
package = EngineRegistrar.getPackage(pack_name)
if(isinstance(self.__depends__[pack_name], dict)):
pack = package(copy.deepcopy(self.__depends__[pack_name]))
if not pack.installed: pack.install()
__newDepends[pack_name] = pack.getResolutions(copy.deepcopy(self.__depends__[pack_name]))
for key in __newDepends[pack_name].keys():
ret_val = pack.requestVariable(key)
if ret_val is not None: __newDepends[pack_name][key] = ret_val
elif(isinstance(self.__depends__[pack_name], list)):
__newDepends[pack_name] = list()
for item in self.__depends__[pack_name]:
pack = package(copy.deepcopy(item))
if not pack.installed: pack.install()
__newDepends[pack_name].append(pack.getResolutions(copy.deepcopy(item)))
for key in __newDepends[pack_name][-1].keys():
ret_val = pack.requestVariable(key)
if ret_val is not None: __newDepends[pack_name][-1][key] = ret_val
self.__depends__ = __newDepends
def requestVariable(self, string): return None
def getResolutions(self, requirements_as_dict):
for key in requirements_as_dict.keys():
requirements_as_dict[key] = self.__getattribute__(key)
return requirements_as_dict
def start(self): raise NotImplemented
def default_start(self, func_callback):
if(not self.installed):
if(not self.install()): return False
return func_callback()
def stop(self): raise NotImplemented
def default_stop(self, func_callback):
if(not self.installed): return True
return func_callback()
def install(self, force = False): raise NotImplemented
def default_install(self, func_callback, force = False):
self.resolveDepends()
if(force):
if(not try_delete_path(self.app_path)): raise FilePermissionException
self.installed = False
if not os.path.exists(self.app_path):
os.makedirs(self.app_path)
self.installed = func_callback()
return self.installed
def uninstall(self): raise NotImplemented
def default_uninstall(self, func_callback = None):
if(func_callback != None):
return func_callback()
if(self.installed == True):
if(not try_delete_path(self.app_path)):
raise UninstallingItemDNEException
self.installed = False
def restart(self):
raise NotImplemented
def default_restart(self, func_callback = None):
if(not self.installed):
if(not self.install()): return False
if(func_callback == None):
stop_status = self.stop()
start_status = self.start()
return (stop_status and start_status)
return func_callback()
def download(self, *args, **kw):
return self.fileHelper.download(*args, **kw)
def unTar(self, *args, **kw):
return self.fileHelper.unTar(*args, **kw)
def runConfigAndMake(self, directory, flags={}):
configPath = os.path.abspath(os.path.join(directory, 'configure'))
assert os.path.exists(configPath)
command('chmod u+x %s' % configPath)
flagString = ''
for flag, arg in flags.items():
flagString += flag
if arg:
flagString += "=%s" % arg
flagString += " "
command('cd %s && bash %s -q %s && make && make install' % (directory, configPath, flagString))
def cleanUp(self):
return self.fileHelper.cleanUp()
class BaseEngine(object):
version = "0.0.--.0.0"
description = "Unimplemented description field."
__metaclass__ = RegisterEngine
depends = []
optionalArgs = {"app_path" : None}
def __init__(self, *args, **kw):
if "settings" in kw:
self.settings = kw["settings"]
else: self.settings = GlobalSettings()
# Resolve the App Path Issue
if not (self.__class__.__name__ in self.settings.packages):
self.settings.packages[self.__class__.__name__] = dict()
if not "app_path" in self.settings.packages[self.__class__.__name__]:
self.settings.packages[self.__class__.__name__]["app_path"] = self.settings.default_install_path
self.app_path = self.settings.packages[self.__class__.__name__]["app_path"] + "/" + self.__class__.__name__
self.settings.packages[self.__class__.__name__]["app_path"] = self.app_path
print self.app_path
# Given the app path, let's check if it is installed or not
if(os.path.exists(self.app_path)): self.installed = True
else: self.installed = False
self.fileHelper = FileHelperObject(self.__class__.__name__)
def get_dependencies(self):
if(self.depends == []): return [self.__class__.__name__]
new_depends = []
for depend_name in self.depends:
eng = EngineRegistrar.getPackage(depend_name)
if eng is None:
eng = generateDynamicClass(depend_name)
if eng is None:
print "Could Not Identify Dependency %s as Package or Factory" % basePackage
return
new_depends = merge_depends(new_depends, eng.depends)
return new_depends
def default_start(self, func_callback):
if(not self.installed):
if(not self.install()): return False
return func_callback()
def stop(self): raise NotImplemented
def default_stop(self, func_callback):
if(not self.installed): return True
return func_callback()
def resolveDepends(self):
for pack_name in self.depends:
print pack_name
package = EngineRegistrar.getPackage(pack_name)
if(package is None):
package = generateDynamicClass(pack_name)
if(package is None):
print "Could Not Identify Dependency %s as Package or Factory" % basePackage
return
pack_class = package(settings = self.settings)
pack_class.install()
self.settings = pack_class.settings
def install(self, force = False): raise NotImplemented
def default_install(self, func_callback, force = False):
self.resolveDepends()
if(force):
if(not try_delete_path(self.app_path)): raise FilePermissionException
self.installed = False
if not (self.app_path is None):
if not os.path.exists(self.app_path):
os.makedirs(self.app_path)
self.installed = func_callback()
def uninstall(self): raise NotImplemented
def default_uninstall(self, func_callback = None):
if(func_callback != None):
return func_callback()
if(self.installed == True):
if(not try_delete_path(self.app_path)):
raise UninstallingItemDNEException
self.installed = False
def restart(self): raise NotImplemented
def default_restart(self, func_callback = None):
if(not self.installed):
if(not self.install()): return False
if(func_callback == None):
stop_status = self.stop()
start_status = self.start()
return (stop_status and start_status)
return func_callback()
def download(self, *args, **kw):
return self.fileHelper.download(*args, **kw)
def unTar(self, *args, **kw):
return self.fileHelper.unTar(*args, **kw)
def runConfigAndMake(self, directory, flags={}):
configPath = os.path.abspath(os.path.join(directory, 'configure'))
assert os.path.exists(configPath)
command('chmod u+x %s' % configPath)
flagString = ''
for flag, arg in flags.items():
flagString += flag
if arg:
flagString += "=%s" % arg
flagString += " "
command('cd %s && bash %s -q %s && make && make install' % (directory, configPath, flagString))
def cleanUp(self):
return self.fileHelper.cleanUp()