class AsyncResultManager(object):
"""
A class to check the async result updates,changes to
be able to display on UI
"""
JOB_CODE_CHANGED = 1
JOB_CODE_NEW = 2
JOB_CODE_SAME = 3
pull_property_options = ('FINISHED','ERROR','NEW','CHANGED','RUNNING','PARTIAL')
def __init__(self):
#we keep all the entries in memory it may seems
#that it will occuppy lots of space but all it has
#is job_id:code pairs with some status info : changed,new
#and etc all other stuff is kept in DB
#so if someone does 1000 async queries will occupy
#1000 * (integer*2) not big deal :)
#the format will be job_id : [code,status]
self.__current_list = {}
#create a dummy Overlord object
self.fc = Overlord("*")
def __get_current_list(self,check_for_change=False):
"""
Method returns back the current
list of the job_ids : result_code pairs
"""
changed = []
tmp_ids = self.fc.open_job_ids()
for job_id,code in tmp_ids.iteritems():
#is it a new code ?
if self.__current_list.has_key(job_id):
#the code is same no change occured
if self.__current_list[job_id][0] == code:
#print "I have that code %s no change will be reported"%job_id
self.__current_list[job_id][1] = self.JOB_CODE_SAME
else:
#we have change i db
#print "That is a change from %d to %d for %s"%(self.__current_list[job_id][0],code,job_id)
self.__current_list[job_id]=[code,self.JOB_CODE_CHANGED]
if check_for_change:
changed.append(job_id)
else:
# a new code was added
#print "A new code was added %s"%job_id
self.__current_list[job_id] = [code,self.JOB_CODE_NEW]
if check_for_change:
changed.append(job_id)
#if true the db was updated and ours is outofdate
if len(self.__current_list.keys()) != len(tmp_ids.keys()):
self.__update_current_list(tmp_ids.keys())
#if we want to know if sth has changed
if check_for_change and changed:
return changed
return None
def __update_current_list(self,tmp_db_hash):
"""
Synch the memory and local db
"""
for mem_job_id in self.__current_list.keys():
if mem_job_id not in tmp_db_hash:
del self.__current_list[mem_job_id]
def check_for_changes(self):
"""
Method will be called by js on client side to check if something
interesting happened in db in "before defined" time interval
If have lots of methods running async that may take a while to finish
but user will not be interrupted about that situation ...
"""
tmp_ids = self.fc.open_job_ids()
should_check_change = False
for job_id,code in tmp_ids.iteritems():
#check only the partials and others
if code == JOB_ID_RUNNING or code == JOB_ID_PARTIAL:
#that operation updates the db at the same time
try :
#print "The status from %s is %s in check_for_changes"%(job_id,self.fc.job_status(job_id)[0])
tmp_code = self.fc.job_status(job_id)[0]
#should_check_change = True
except Exception,e:
print "Some exception in pulling the job_id_status",e
continue
#else:
# print "The job_id is not checked remotely :%s in check_for_changes and the code is %s"%(job_id,code)
#if you thing there is sth to check interesting send it
#if should_check_change:
return self.__get_current_list(check_for_change=True)
class AsyncResultManager(object):
"""
A class to check the async result updates,changes to
be able to display on UI
"""
JOB_CODE_CHANGED = 1
JOB_CODE_NEW = 2
JOB_CODE_SAME = 3
pull_property_options = ('FINISHED', 'ERROR', 'NEW', 'CHANGED', 'RUNNING',
'PARTIAL')
def __init__(self):
#we keep all the entries in memory it may seems
#that it will occuppy lots of space but all it has
#is job_id:code pairs with some status info : changed,new
#and etc all other stuff is kept in DB
#so if someone does 1000 async queries will occupy
#1000 * (integer*2) not big deal :)
#the format will be job_id : [code,status]
self.__current_list = {}
#create a dummy Overlord object
self.fc = Overlord("*")
def __get_current_list(self, check_for_change=False):
"""
Method returns back the current
list of the job_ids : result_code pairs
"""
changed = []
tmp_ids = self.fc.open_job_ids()
for job_id, code in tmp_ids.iteritems():
#is it a new code ?
if self.__current_list.has_key(job_id):
#the code is same no change occured
if self.__current_list[job_id][0] == code:
#print "I have that code %s no change will be reported"%job_id
self.__current_list[job_id][1] = self.JOB_CODE_SAME
else:
#we have change i db
#print "That is a change from %d to %d for %s"%(self.__current_list[job_id][0],code,job_id)
self.__current_list[job_id] = [code, self.JOB_CODE_CHANGED]
if check_for_change:
changed.append(job_id)
else:
# a new code was added
#print "A new code was added %s"%job_id
self.__current_list[job_id] = [code, self.JOB_CODE_NEW]
if check_for_change:
changed.append(job_id)
#if true the db was updated and ours is outofdate
if len(self.__current_list.keys()) != len(tmp_ids.keys()):
self.__update_current_list(tmp_ids.keys())
#if we want to know if sth has changed
if check_for_change and changed:
return changed
return None
def __update_current_list(self, tmp_db_hash):
"""
Synch the memory and local db
"""
for mem_job_id in self.__current_list.keys():
if mem_job_id not in tmp_db_hash:
del self.__current_list[mem_job_id]
def check_for_changes(self):
"""
Method will be called by js on client side to check if something
interesting happened in db in "before defined" time interval
If have lots of methods running async that may take a while to finish
but user will not be interrupted about that situation ...
"""
tmp_ids = self.fc.open_job_ids()
should_check_change = False
for job_id, code in tmp_ids.iteritems():
#check only the partials and others
if code == JOB_ID_RUNNING or code == JOB_ID_PARTIAL:
#that operation updates the db at the same time
try:
#print "The status from %s is %s in check_for_changes"%(job_id,self.fc.job_status(job_id)[0])
tmp_code = self.fc.job_status(job_id)[0]
#should_check_change = True
except Exception, e:
print "Some exception in pulling the job_id_status", e
continue
#else:
# print "The job_id is not checked remotely :%s in check_for_changes and the code is %s"%(job_id,code)
#if you thing there is sth to check interesting send it
#if should_check_change:
return self.__get_current_list(check_for_change=True)
class AsyncResultManagerTest(object):
def setUp(self):
self.fc = Overlord("*")
self.async_manager = AsyncResultManager()
def get_current_list_test(self):
#that is tested in test_current_db
pass
def update_current_list_test(self):
pass
def check_for_changes_test(self):
print "***** Testing check_for_changes *****"
self.reset_stuff()
#now make a new entry into database to have a only one
#new entry in the db ...
#running a new command which is a short one
new_fc = Overlord("*",async=True)
new_job_id=new_fc.test.add(1,2)
#print "The job id we got is :",new_job_id
changes = self.async_manager.check_for_changes()
print "The latest Changes for add method are :",changes
assert len(changes) == 1
assert changes[0] == new_job_id
#check if that one is finished
another_test = False
while new_fc.job_status(new_job_id)[0] != JOB_ID_FINISHED:
print "Waiting for add command to finish "
time.sleep(2)
another_test = True
# that probably may happen so should add it here
if another_test:
changes = self.async_manager.check_for_changes()
assert len(changes) == 1
assert changes[0] == new_job_id
print "The changes are for add finish :",changes
#now should run another command that is longer to see what happens
new_job_id = new_fc.test.sleep(4)
# we have now one entry in the db what to do ?
# when now run the check changes should have ne entry in the changes :)
changes = self.async_manager.check_for_changes()
print "The changes for sleep are :",changes
assert len(changes) == 1
assert changes[0] == new_job_id
#if we already have the finished message we dont have to run the other test after that one
another_test = False
while new_fc.job_status(new_job_id)[0] != JOB_ID_FINISHED:
print "Waiting for sleep command to finish "
time.sleep(2)
another_test = True
if another_test:
changes = self.async_manager.check_for_changes()
assert len(changes) == 1
assert changes[0] == new_job_id
print "The changes for sleep finish are :",changes
def select_from_test(self):
print "****Testing select_from**** "
#these tests are a little bit tricky so may not have
#the exact results all depends on remote machines :)
self.reset_stuff()
new_fc = Overlord("*",async=True)
#new_job_id=new_fc.test.add(1,2)
new_job_id = new_fc.test.sleep(6)
#insert one running
#now we have one entry into async_manager
result_ids = new_fc.open_job_ids()
self.async_manager.refresh_list()
if result_ids.has_key(new_job_id) and result_ids[new_job_id] == JOB_ID_RUNNING:
print "Testing for SELECT RUNNING ..."
select_list = self.async_manager.select_from('RUNNING')
#print "Result form selct RUNNING :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][0] == JOB_ID_RUNNING
#pull_property_options = ('FINISHED','ERROR','NEW','CHANGED','RUNNING','PARTIAL')
#insert one that finishes
#get one NEW
print "Testing for SELECT NEW ..."
select_list = self.async_manager.select_from('NEW')
#print "The select list is :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][1] == self.async_manager.JOB_CODE_NEW
#test the ones that are changed :)
another_test = False
current_job_status = new_fc.job_status(new_job_id)[0]
while current_job_status != JOB_ID_FINISHED:
print "Waiting for sleep command to finish "
time.sleep(1)
another_test = True
#test also for partial resultst status
if current_job_status == JOB_ID_PARTIAL:
#populate the list
print "Testing for SELECT PARTIAL ..."
self.async_manager.refresh_list()
select_list = self.async_manager.select_from('PARTIAL')
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][0] == JOB_ID_PARTIAL
current_job_status = new_fc.job_status(new_job_id)[0]
if another_test:
print "Testing for SELECT CHANGED ..."
self.async_manager.refresh_list()
select_list = self.async_manager.select_from('CHANGED')
#print "current Select list is :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][1] == self.async_manager.JOB_CODE_CHANGED
print "Testing for SELECT FINISHED ..."
assert select_list[0][new_job_id][0] == JOB_ID_FINISHED
#didnt test for ERROR and others they are not present in overlord :)
#insert one raises error
#insert one another
def job_id_result_test(self):
pass
def current_db_test(self):
#that test also test the test_get_current_list with no changes option
result_ids = self.fc.open_job_ids()
manual_list = {}
for job_id,code in result_ids.iteritems():
manual_list[job_id]=[code,self.async_manager.JOB_CODE_NEW]
real_result =self.async_manager.current_db()
#print real_result
assert manual_list ==real_result
def reset_stuff(self):
#first reset the database to see what is there
self.remove_db()
#all of them are new now
self.async_manager.reset_current_list()
def remove_db(self):
import os
root_dir = "/var/lib/func"
db_file_list = os.listdir(root_dir)
for f in db_file_list:
if not f.startswith("."):
os.remove("".join([root_dir,"/",f]))
print "The database is removed"
def select_from_test(self):
print "****Testing select_from**** "
#these tests are a little bit tricky so may not have
#the exact results all depends on remote machines :)
self.reset_stuff()
new_fc = Overlord("*",async=True)
#new_job_id=new_fc.test.add(1,2)
new_job_id = new_fc.test.sleep(6)
#insert one running
#now we have one entry into async_manager
result_ids = new_fc.open_job_ids()
self.async_manager.refresh_list()
if result_ids.has_key(new_job_id) and result_ids[new_job_id] == JOB_ID_RUNNING:
print "Testing for SELECT RUNNING ..."
select_list = self.async_manager.select_from('RUNNING')
#print "Result form selct RUNNING :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][0] == JOB_ID_RUNNING
#pull_property_options = ('FINISHED','ERROR','NEW','CHANGED','RUNNING','PARTIAL')
#insert one that finishes
#get one NEW
print "Testing for SELECT NEW ..."
select_list = self.async_manager.select_from('NEW')
#print "The select list is :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][1] == self.async_manager.JOB_CODE_NEW
#test the ones that are changed :)
another_test = False
current_job_status = new_fc.job_status(new_job_id)[0]
while current_job_status != JOB_ID_FINISHED:
print "Waiting for sleep command to finish "
time.sleep(1)
another_test = True
#test also for partial resultst status
if current_job_status == JOB_ID_PARTIAL:
#populate the list
print "Testing for SELECT PARTIAL ..."
self.async_manager.refresh_list()
select_list = self.async_manager.select_from('PARTIAL')
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][0] == JOB_ID_PARTIAL
current_job_status = new_fc.job_status(new_job_id)[0]
if another_test:
print "Testing for SELECT CHANGED ..."
self.async_manager.refresh_list()
select_list = self.async_manager.select_from('CHANGED')
#print "current Select list is :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][1] == self.async_manager.JOB_CODE_CHANGED
print "Testing for SELECT FINISHED ..."
assert select_list[0][new_job_id][0] == JOB_ID_FINISHED
class AsyncResultManagerTest(object):
def setUp(self):
self.fc = Overlord("*")
self.async_manager = AsyncResultManager()
def get_current_list_test(self):
#that is tested in test_current_db
pass
def update_current_list_test(self):
pass
def check_for_changes_test(self):
print "***** Testing check_for_changes *****"
self.reset_stuff()
#now make a new entry into database to have a only one
#new entry in the db ...
#running a new command which is a short one
new_fc = Overlord("*", async=True)
new_job_id = new_fc.test.add(1, 2)
#print "The job id we got is :",new_job_id
changes = self.async_manager.check_for_changes()
print "The latest Changes for add method are :", changes
assert len(changes) == 1
assert changes[0] == new_job_id
#check if that one is finished
another_test = False
while new_fc.job_status(new_job_id)[0] != JOB_ID_FINISHED:
print "Waiting for add command to finish "
time.sleep(2)
another_test = True
# that probably may happen so should add it here
if another_test:
changes = self.async_manager.check_for_changes()
assert len(changes) == 1
assert changes[0] == new_job_id
print "The changes are for add finish :", changes
#now should run another command that is longer to see what happens
new_job_id = new_fc.test.sleep(4)
# we have now one entry in the db what to do ?
# when now run the check changes should have ne entry in the changes :)
changes = self.async_manager.check_for_changes()
print "The changes for sleep are :", changes
assert len(changes) == 1
assert changes[0] == new_job_id
#if we already have the finished message we dont have to run the other test after that one
another_test = False
while new_fc.job_status(new_job_id)[0] != JOB_ID_FINISHED:
print "Waiting for sleep command to finish "
time.sleep(2)
another_test = True
if another_test:
changes = self.async_manager.check_for_changes()
assert len(changes) == 1
assert changes[0] == new_job_id
print "The changes for sleep finish are :", changes
def select_from_test(self):
print "****Testing select_from**** "
#these tests are a little bit tricky so may not have
#the exact results all depends on remote machines :)
self.reset_stuff()
new_fc = Overlord("*", async=True)
#new_job_id=new_fc.test.add(1,2)
new_job_id = new_fc.test.sleep(6)
#insert one running
#now we have one entry into async_manager
result_ids = new_fc.open_job_ids()
self.async_manager.refresh_list()
if result_ids.has_key(
new_job_id) and result_ids[new_job_id] == JOB_ID_RUNNING:
print "Testing for SELECT RUNNING ..."
select_list = self.async_manager.select_from('RUNNING')
#print "Result form selct RUNNING :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][0] == JOB_ID_RUNNING
#pull_property_options = ('FINISHED','ERROR','NEW','CHANGED','RUNNING','PARTIAL')
#insert one that finishes
#get one NEW
print "Testing for SELECT NEW ..."
select_list = self.async_manager.select_from('NEW')
#print "The select list is :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][1] == self.async_manager.JOB_CODE_NEW
#test the ones that are changed :)
another_test = False
current_job_status = new_fc.job_status(new_job_id)[0]
while current_job_status != JOB_ID_FINISHED:
print "Waiting for sleep command to finish "
time.sleep(1)
another_test = True
#test also for partial resultst status
if current_job_status == JOB_ID_PARTIAL:
#populate the list
print "Testing for SELECT PARTIAL ..."
self.async_manager.refresh_list()
select_list = self.async_manager.select_from('PARTIAL')
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][0] == JOB_ID_PARTIAL
current_job_status = new_fc.job_status(new_job_id)[0]
if another_test:
print "Testing for SELECT CHANGED ..."
self.async_manager.refresh_list()
select_list = self.async_manager.select_from('CHANGED')
#print "current Select list is :",select_list
assert len(select_list) == 1
assert select_list[0].has_key(new_job_id)
assert select_list[0][new_job_id][
1] == self.async_manager.JOB_CODE_CHANGED
print "Testing for SELECT FINISHED ..."
assert select_list[0][new_job_id][0] == JOB_ID_FINISHED
#didnt test for ERROR and others they are not present in overlord :)
#insert one raises error
#insert one another
def job_id_result_test(self):
pass
def current_db_test(self):
#that test also test the test_get_current_list with no changes option
result_ids = self.fc.open_job_ids()
manual_list = {}
for job_id, code in result_ids.iteritems():
manual_list[job_id] = [code, self.async_manager.JOB_CODE_NEW]
real_result = self.async_manager.current_db()
#print real_result
assert manual_list == real_result
def reset_stuff(self):
#first reset the database to see what is there
self.remove_db()
#all of them are new now
self.async_manager.reset_current_list()
def remove_db(self):
import os
root_dir = "/var/lib/func"
db_file_list = os.listdir(root_dir)
for f in db_file_list:
if not f.startswith("."):
os.remove("".join([root_dir, "/", f]))
print "The database is removed"
