def __init__(self, fabnet_host, security_provider, parallel_put_count=3, \
parallel_get_count=3, cache_dir='/tmp', cache_size=None):
if not isinstance(security_provider, AbstractSecurityManager):
raise Exception('Invalid security provider type!')
self.__parallel_put_count = parallel_put_count
self.__parallel_get_count = parallel_get_count
self.security_provider = security_provider
self.fabnet_gateway = FabnetGateway(fabnet_host, security_provider)
prikey = self.security_provider.get_prikey()
self.metadata_key = hashlib.sha1(str(prikey)).hexdigest()
self.metadata_f_name = 'md-%s.bin' % self.metadata_key
self.db_cache = DataBlockCache(cache_dir, cache_size,
self.metadata_key)
self.journal = None
self.metadata = None
self.transactions_manager = None
self.put_manager = None
self.get_manager = None
self.delete_manager = None
DataBlock.SECURITY_MANAGER = self.security_provider
DataBlock.LOCK_MANAGER = DBLocksManager()
self.journal = Journal(self.metadata_key, \
self.db_cache.get_static_cache_path('journal.bin'), self.fabnet_gateway)
def __init__(self, fabnet_host, security_provider, parallel_put_count=3, \
parallel_get_count=3, cache_dir='/tmp', cache_size=None):
if not isinstance(security_provider, AbstractSecurityManager):
raise Exception('Invalid security provider type!')
self.__parallel_put_count = parallel_put_count
self.__parallel_get_count = parallel_get_count
self.security_provider = security_provider
self.fabnet_gateway = FabnetGateway(fabnet_host, security_provider)
prikey = self.security_provider.get_prikey()
self.metadata_key = hashlib.sha1(str(prikey)).hexdigest()
self.metadata_f_name = 'md-%s.bin'%self.metadata_key
self.db_cache = DataBlockCache(cache_dir, cache_size, self.metadata_key)
self.journal = None
self.metadata = None
self.transactions_manager = None
self.put_manager = None
self.get_manager = None
self.delete_manager = None
DataBlock.SECURITY_MANAGER = self.security_provider
DataBlock.LOCK_MANAGER = DBLocksManager()
self.journal = Journal(self.metadata_key, \
self.db_cache.get_static_cache_path('journal.bin'), self.fabnet_gateway)
class Nibbler:
def __init__(self, fabnet_host, security_provider, parallel_put_count=3, \
parallel_get_count=3, cache_dir='/tmp', cache_size=None):
if not isinstance(security_provider, AbstractSecurityManager):
raise Exception('Invalid security provider type!')
self.__parallel_put_count = parallel_put_count
self.__parallel_get_count = parallel_get_count
self.security_provider = security_provider
self.fabnet_gateway = FabnetGateway(fabnet_host, security_provider)
prikey = self.security_provider.get_prikey()
self.metadata_key = hashlib.sha1(str(prikey)).hexdigest()
self.metadata_f_name = 'md-%s.bin' % self.metadata_key
self.db_cache = DataBlockCache(cache_dir, cache_size,
self.metadata_key)
self.journal = None
self.metadata = None
self.transactions_manager = None
self.put_manager = None
self.get_manager = None
self.delete_manager = None
DataBlock.SECURITY_MANAGER = self.security_provider
DataBlock.LOCK_MANAGER = DBLocksManager()
self.journal = Journal(self.metadata_key, \
self.db_cache.get_static_cache_path('journal.bin'), self.fabnet_gateway)
def get_security_provider(self):
return self.security_provider
def start(self):
self.fabnet_gateway.init_socket_processor()
if not self.journal.foreign_exists():
raise NoJournalFoundException('No journal for key = %s' %
self.metadata_key)
self.metadata = MetadataFile(
self.db_cache.get_static_cache_path(self.metadata_f_name),
self.journal)
self.transactions_manager = TransactionsManager(
self.metadata, self.db_cache, user_id=self.metadata_key)
SmartFileObject.setup_transaction_manager(self.transactions_manager)
self.put_manager = WorkersManager(PutWorker, self.fabnet_gateway, \
self.transactions_manager, self.__parallel_put_count)
self.get_manager = WorkersManager(GetWorker, self.fabnet_gateway, \
self.transactions_manager, self.__parallel_get_count)
self.delete_manager = WorkersManager(DeleteWorker, self.fabnet_gateway, \
self.transactions_manager, 2)
self.put_manager.start()
self.get_manager.start()
self.delete_manager.start()
def is_registered(self):
self.fabnet_gateway.init_socket_processor()
return self.journal.foreign_exists()
def register_user(self):
self.fabnet_gateway.init_socket_processor()
self.journal.init()
if self.metadata:
self.metadata.close()
self.metadata = MetadataFile(
self.db_cache.get_static_cache_path(self.metadata_f_name),
self.journal)
def on_error(self, error_msg):
pass
def stop(self):
self.fabnet_gateway.force_close_all_connections()
if self.put_manager:
self.put_manager.stop()
if self.get_manager:
self.get_manager.stop()
if self.delete_manager:
self.delete_manager.stop()
if self.metadata:
self.metadata.close()
if self.journal:
self.journal.close()
if self.transactions_manager:
self.transactions_manager.close()
self.db_cache.stop()
def __make_item_fs(self, item_md):
return FSItem(item_md.name, item_md.is_dir(), item_md.create_date,
item_md.last_modify_date, item_md.size)
def find(self, path):
path = to_nimbus_path(path)
path_obj = self.transactions_manager.find_inprogress_file(path)
if not path_obj:
try:
path_obj = self.metadata.find(path)
except PathException, err:
#logger.debug('[get_resource] %s'%str(err))
return
if path_obj:
return self.__make_item_fs(path_obj)
class Nibbler:
def __init__(self, fabnet_host, security_provider, parallel_put_count=3, \
parallel_get_count=3, cache_dir='/tmp', cache_size=None):
if not isinstance(security_provider, AbstractSecurityManager):
raise Exception('Invalid security provider type!')
self.__parallel_put_count = parallel_put_count
self.__parallel_get_count = parallel_get_count
self.security_provider = security_provider
self.fabnet_gateway = FabnetGateway(fabnet_host, security_provider)
prikey = self.security_provider.get_prikey()
self.metadata_key = hashlib.sha1(str(prikey)).hexdigest()
self.metadata_f_name = 'md-%s.bin'%self.metadata_key
self.db_cache = DataBlockCache(cache_dir, cache_size, self.metadata_key)
self.journal = None
self.metadata = None
self.transactions_manager = None
self.put_manager = None
self.get_manager = None
self.delete_manager = None
DataBlock.SECURITY_MANAGER = self.security_provider
DataBlock.LOCK_MANAGER = DBLocksManager()
self.journal = Journal(self.metadata_key, \
self.db_cache.get_static_cache_path('journal.bin'), self.fabnet_gateway)
def get_security_provider(self):
return self.security_provider
def start(self):
self.fabnet_gateway.init_socket_processor()
if not self.journal.foreign_exists():
raise NoJournalFoundException('No journal for key = %s'%self.metadata_key)
self.metadata = MetadataFile(self.db_cache.get_static_cache_path(self.metadata_f_name), self.journal)
self.transactions_manager = TransactionsManager(self.metadata, self.db_cache, user_id=self.metadata_key)
SmartFileObject.setup_transaction_manager(self.transactions_manager)
self.put_manager = WorkersManager(PutWorker, self.fabnet_gateway, \
self.transactions_manager, self.__parallel_put_count)
self.get_manager = WorkersManager(GetWorker, self.fabnet_gateway, \
self.transactions_manager, self.__parallel_get_count)
self.delete_manager = WorkersManager(DeleteWorker, self.fabnet_gateway, \
self.transactions_manager, 2)
self.put_manager.start()
self.get_manager.start()
self.delete_manager.start()
def is_registered(self):
self.fabnet_gateway.init_socket_processor()
return self.journal.foreign_exists()
def register_user(self):
self.fabnet_gateway.init_socket_processor()
self.journal.init()
if self.metadata:
self.metadata.close()
self.metadata = MetadataFile(self.db_cache.get_static_cache_path(self.metadata_f_name), self.journal)
def on_error(self, error_msg):
pass
def stop(self):
self.fabnet_gateway.force_close_all_connections()
if self.put_manager:
self.put_manager.stop()
if self.get_manager:
self.get_manager.stop()
if self.delete_manager:
self.delete_manager.stop()
if self.metadata:
self.metadata.close()
if self.journal:
self.journal.close()
if self.transactions_manager:
self.transactions_manager.close()
self.db_cache.stop()
def __make_item_fs(self, item_md):
return FSItem(item_md.name, item_md.is_dir(), item_md.create_date, item_md.last_modify_date, item_md.size)
def find(self, path):
path = to_nimbus_path(path)
path_obj = self.transactions_manager.find_inprogress_file(path)
if not path_obj:
try:
path_obj = self.metadata.find(path)
except PathException, err:
#logger.debug('[get_resource] %s'%str(err))
return
if path_obj:
return self.__make_item_fs(path_obj)
