class PilotData(PilotData):
""" PilotData.
Reserves a space of physical storage on the resource specified in the pilot_data_description
"""
PD_ID_PREFIX="pd-"
def __init__(self, pilot_data_service=None, pilot_data_description=None, pd_url=None):
"""
Initialize PilotData at given service url:
ssh://<hostname>
gsissh://<hostname>
Currently only ssh schemes are supported. In the future all
SAGA URL schemes/adaptors should be supported.
"""
self.id = None
self.url = None
self.pilot_data_description = None
self.service_url=None
self.size = None
self.data_unit_description = None
self.data_units={}
if pd_url==None and pilot_data_service!=None: # new pd
self.id = self.PD_ID_PREFIX+str(uuid.uuid1())
self.pilot_data_description = pilot_data_description
self.url = CoordinationAdaptor.add_pd(CoordinationAdaptor.get_base_url(application_id)+"/"+pilot_data_service.id, self)
elif pd_url != None:
logger.warn("Reconnect to PilotData: %s"%pd_url)
dictionary = CoordinationAdaptor.get_pd(pd_url)
pd_dict = dictionary["pilot_data"]
for i in pd_dict:
self.__setattr__(i, pd_dict[i])
self.initialize_pilot_data()
def initialize_pilot_data(self):
if self.pilot_data_description!=None:
self.service_url=self.pilot_data_description["service_url"]
self.size = self.pilot_data_description["size"]
# initialize file adaptor
if self.service_url.startswith("ssh:"):
logger.debug("Use SSH backend")
self.__filemanager = SSHFileAdaptor(self.service_url)
elif self.service_url.startswith("http:"):
logger.debug("Use WebHDFS backend")
self.__filemanager = WebHDFSFileAdaptor(self.service_url)
self.__filemanager.initialize_pilotdata()
self.__filemanager.get_pilotdata_size()
def __get_pd_id(self, pd_url):
start = pd_url.index(self.PD_ID_PREFIX)
end =pd_url.index("/", start)
return pd_url[start:end]
def cancel(self):
""" Cancel PilotData
Keyword arguments:
None
"""
#self.__filemanager.delete_pilotdata()
pass
def url_for_du(self, du):
if self.data_units.has_key(du.id):
return self.service_url + "/" + str(du.id)
return None
def create_du(self, du):
self.__filemanager.create_du(du.id)
def put_du(self, du):
logging.debug("Put PD: %s to PS: %s"%(du.id,self.service_url))
self.__filemanager.create_du(du.id)
self.__filemanager.put_du(du)
self.data_units[du.id] = du
CoordinationAdaptor.update_pd(self)
def remove_du(self, du):
""" Remove pilot data from pilot data """
if self.data_units.has_key(du.id):
self.__filemanager.remove_du(du)
del self.data_units[du.id]
CoordinationAdaptor.update_pd(self)
def copy_du(self, du, pd_new):
pd_new.create_du(du)
self.__filemanager.copy_du(du, pd_new)
# update meta data at pd_new
pd_new.data_units[du.id] = du
CoordinationAdaptor.update_pd(pd_new)
def list_data_units(self):
return self.data_units.values()
#return self.data_units.values()
def get_state(self):
return self.__filemanager.get_state()
def wait(self):
while 1:
finish_counter=0
result_map = {}
dus = self.data_units.values()
for du in dus:
du.wait()
state = du.get_state()
#state = job_detail["state"]
if result_map.has_key(state)==False:
result_map[state]=1
else:
result_map[state] = result_map[state]+1
if self.__has_finished(state)==True:
finish_counter = finish_counter + 1
logger.debug("PD ID: " + str(self.id) + " Total DUs: %s States: %s"%(len(dus), str(result_map)))
if finish_counter == len(dus):
break
time.sleep(2)
def export_du(self, du, target_url):
self.__filemanager.get_du(du, target_url)
def to_dict(self):
pd_dict = {}
pd_dict["id"]=self.id
pd_dict["url"]=self.url
pd_dict["pilot_data_description"]=self.pilot_data_description
logger.debug("PS Dictionary: " + str(pd_dict))
return pd_dict
def __repr__(self):
return self.service_url
def __has_finished(self, state):
state = state.lower()
if state=="running" or state=="failed" or state=="canceled":
return True
else:
return False
@classmethod
def create_pilot_data_from_dict(cls, pd_dict):
pd = PilotData()
for i in pd_dict.keys():
pd.__setattr__(i, pd_dict[i])
pd.initialize_pilot_data()
logger.debug("created pd " + str(pd))
return pd
class PilotData(PilotData):
""" PilotData.
Reserves a space of physical storage on the resource specified in the pilot_data_description
"""
PS_ID_PREFIX="ps-"
def __init__(self, pilot_data_service=None, pilot_data_description=None, ps_url=None):
"""
Initialize PilotData at given service url:
ssh://<hostname>
gsissh://<hostname>
Currently only ssh schemes are supported. In the future all
SAGA URL schemes/adaptors should be supported.
"""
self.id = None
self.url = None
self.pilot_data_description = None
self.service_url=None
self.size = None
self.data_unit_description = None
self.data_units={}
if ps_url==None and pilot_data_service!=None: # new ps
self.id = self.PS_ID_PREFIX+str(uuid.uuid1())
self.pilot_data_description = pilot_data_description
self.url = CoordinationAdaptor.add_ps(CoordinationAdaptor.get_base_url(bigdata.application_id)+"/"+pilot_data_service.id, self)
elif ps_url != None:
logger.warn("Reconnect to PilotData: %s"%ps_url)
dictionary = CoordinationAdaptor.get_ps(ps_url)
ps_dict = dictionary["pilot_data"]
for i in ps_dict:
self.__setattr__(i, ps_dict[i])
self.initialize_pilot_data()
def initialize_pilot_data(self):
if self.pilot_data_description!=None:
self.service_url=self.pilot_data_description["service_url"]
self.size = self.pilot_data_description["size"]
# initialize file adaptor
if self.service_url.startswith("ssh:"):
logger.debug("Use SSH backend")
self.__filemanager = SSHFileAdaptor(self.service_url)
elif self.service_url.startswith("http:"):
logger.debug("Use WebHDFS backend")
self.__filemanager = WebHDFSFileAdaptor(self.service_url)
self.__filemanager.initialize_pilotdata()
self.__filemanager.get_pilotdata_size()
def __get_ps_id(self, ps_url):
start = ps_url.index(self.PS_ID_PREFIX)
end =ps_url.index("/", start)
return ps_url[start:end]
def cancel(self):
""" Cancel PilotData
Keyword arguments:
None
"""
self.__filemanager.delete_pilotdata()
def url_for_du(self, du):
if self.pilot_data.has_key(du.id):
return self.service_url + "/" + str(du.id)
return None
def create_du(self, du):
self.__filemanager.create_du(du.id)
def put_du(self, du):
logging.debug("Put PD: %s to PS: %s"%(du.id,self.service_url))
self.__filemanager.create_du(du.id)
self.__filemanager.put_du(du)
self.pilot_data[du.id] = du
CoordinationAdaptor.update_ps(self)
def remove_du(self, du):
""" Remove pilot data from pilot data """
if self.pilot_data.has_key(du.id):
self.__filemanager.remove_du(du)
del self.pilot_data[du.id]
CoordinationAdaptor.update_ps(self)
def copy_du(self, du, ps_new):
ps_new.create_du(du)
self.__filemanager.copy_du(du, ps_new)
# update meta data at ps_new
ps_new.pilot_data[du.id] = du
CoordinationAdaptor.update_ps(ps_new)
def list_pilotdata(self):
return self.pilot_data.values()
def get_state(self):
return self.__filemanager.get_state()
def export_du(self, du, target_url):
self.__filemanager.get_du(du, target_url)
def to_dict(self):
ps_dict = {}
ps_dict["id"]=self.id
ps_dict["url"]=self.url
ps_dict["pilot_data_description"]=self.pilot_data_description
logger.debug("PS Dictionary: " + str(ps_dict))
return ps_dict
def __repr__(self):
return self.service_url
@classmethod
def create_pilot_data_from_dict(cls, ps_dict):
ps = PilotData()
for i in ps_dict.keys():
ps.__setattr__(i, ps_dict[i])
ps.initialize_pilot_data()
logger.debug("created ps " + str(ps))
return ps
