Hello All,
I am trying to use the Python scripting facility in Bacula.
An initial test (in the JobEvents class per the DirStartup.py
example file distributed with Bacula)...
def NewVolume(self, job):
job.JobReport = "Python: in NewLabel method (1)"
job.JobReport = "Python: in NewLabel method (2)"
print "Python: in NewLabel method (3)"
job.VolumeName = str(job.JobId) + ".bac"
return 1
produces the log output:
21-Jun 14:53 soga-dir JobId 1397: Start Backup JobId 1397,
Job=SogaBkup.2011-06-21_14.53.12_03
21-Jun 14:53 soga-dir JobId 1397: Python: in NewLabel method (1)
21-Jun 14:53 soga-dir JobId 1397: Using Device "FileStorage"
21-Jun 14:53 soga-sd JobId 1397: Labeled new Volume "1397.bac" on device
"FileStorage" (/d2/bacula/new).
...
1. What happened to the "Python: in NewLabel method (2)" message?!
The examples file clearly shows multiple uses of job.JobReport.
(And secondarily, I presume .JobReport is a Python property, yes?
Otherwise, were it an ordinary Python attribute, multiple assignments
would not only be ineffective, but the last assignment, not the
first, would win.)
What is wrong with either: a) my code, or b) my understanding,
or c) Bacula?
2. What happened to the "Python: in NewLabel method (3)" message?
Again, the examples show print statements being used but the
documentation is silent on what effect they have. One could
guess looking at the
sys.stdout = events # send stdout to Bacula
line in the example BaculaEvents.JobStart method that they also
go to the log, but then what is the difference between "print"
and JobReport?
If anyone has used the Python interface and can shine some
enlightenment on me, I will be very grateful.
~~~~
Using Bacula 5.0.3, Python 2.7.1, both as packaged by Fedora-15.
Here is my entire DirStartup.py file for reference:
import sys, bacula
class BaculaEvents(object):
def __init__(self): pass
def JobEnd(self, job): pass
def Exit(self, job): pass
def JobStart(self, job):
events = JobEvents() # create instance of Job class
events.job = job # save Bacula's job pointer
job.set_events(events) # register events desired
sys.stderr = events # send error output to Bacula
sys.stdout = events # send stdout to Bacula
bacula.set_events(BaculaEvents()) # register daemon events desired
class JobEvents(object):
def __init__(self): pass
def JobInit(self, job): pass
def JobRun(self, job): pass
def VolumePurged(self, job): pass
def write(self, text): pass [*]
def open(self, file): pass
def read(self, mem): pass
def close(self): pass
def NewVolume(self, job):
job.JobReport = "Python: in NewLabel method (1)"
job.JobReport = "Python: in NewLabel method (2)"
print "Python: in NewLabel method (3)"
job.VolumeName = str(job.JobId) + ".bac"
return 1
[*] I tried this as "pass" as shown and also as defined in
the examples file, "self.job.write(text)", but it made no
difference in the results above.
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