def pyExceptionToCORBA(native_ex):
'''
Useful function which converts a native Python function to an ACS Error
System CORBA exception. This is only to be used in situations
immediately after the native Python exception has can been caught.
Such an example is:
try:
print joe
except NameError, ex:
corba_ex = pyExceptionToCORBA(ex)
raise corba_ex
Parameters:
- native_ex is a native Python exception. This should not be derived
from any CORBA class.
Returns: native_ex converted to a
ACSErrTypePythonNativeImpl.ACSErrTypePythonNativeExImpl
Raises: ???
'''
from traceback import format_exc
from Acspy.Common.ErrorTrace import ErrorTrace
from ACSErrTypePythonNativeImpl import PythonExImpl
#first let's get the traceback in string format
string_tb = format_exc()
#next get the type of native_ex. this will be used as the short
#description
descript = native_ex.__doc__
#create the new exception
new_except = PythonExImpl()
#redo the error trace so that the level is one lower
new_et = ErrorTrace(new_except.getErrorType(),
new_except.getErrorCode(),
description = new_except.getDescription(),
level = 2)
new_except.setErrorTrace(new_et)
#time to add the real description
new_except.addData("Real Description", descript)
#add the real traceback
new_except.addData("Traceback", string_tb)
return new_except
def __init__(self,
error_type,
error_code,
exception=None,
description="None",
nvSeq=None,
level=3,
severity=None,
sourceobject=""):
'''
Parameters:
- error_type is the error type (a long)
- error_code is the error code (a long)
- exception is a previous exception from the ACS Error System, or a Python
native exception, in which case, an ErrorTrace will be constructed. The traceback
should be ok in most cases, but if you find that it isn't, a possible workaround is
converting the python exception to an ACS exception using pyExceptionToCORBA()
before passing it to an ACSError constructor. Remember, that if you don't use
pyExceptionToCORBA(), if
you are dealing with a native exception, you must pass create=1 to the ACSError
constructor.
- description is a stringified description of the errror
- nvSeq is a name-value sequence describing the error condition. Each value
should be of the type ACSErr.NameValue
- level is an offset from stack()
- severity is the severity of the error
'''
call_frame = stack()[level]
if nvSeq == None:
nvSeq = []
#Get the file name
filename = str(call_frame[1])
#Get the line number
line = str(call_frame[2])
#Get the routine name
routine = str(call_frame[3])
#Get the hostname
host = gethostname()
#Get the process ID
process = str(getpid())
#Try to get the thread ID
if currentThread() != None:
thread = str(currentThread().getName())
else:
thread = "Unavailable"
#Get the ACS time
time = getTimeStamp().value
# Client, components and containers have
frame = call_frame[0]
if 'self' in frame.f_locals and 'name' in frame.f_locals[
'self'].__dict__:
sourceObject = frame.f_locals['self'].name
else:
sourceObject = sourceobject
#Set the severity
if severity == None:
severity = ACSErr.Error
#let's get the traceback in case we are dealing
#with a Python native exception
from traceback import extract_tb, format_exc
string_tb = format_exc()
from sys import exc_info
tuple_tb = extract_tb(exc_info()[2])
try:
#If the previous exception is an ACS Error System Exception
if isinstance(exception.errorTrace, ACSErr.ErrorTrace):
#We can use an error stack...
errortrace = [exception.errorTrace]
except Exception, e:
if exception == None:
errortrace = []
else:
#In this case we are dealing with a native Python Exception
#so we have to "transform" it to an ACS exception
#(actually we are only interested in the ErrorTrace)
from ACSErrTypePythonNativeImpl import PythonExImpl
#next get the type of native_ex. this will be used as the short
#description
descript = exception.__doc__
#create the new exception
new_except = PythonExImpl()
#redo the error trace so that the level is one lower
new_et = ErrorTrace(new_except.getErrorType(),
new_except.getErrorCode(),
description=new_except.getDescription(),
level=2,
sourceobject=sourceObject)
#Now modify some fields
new_et.file = tuple_tb[0][0]
new_et.lineNum = tuple_tb[0][1]
new_et.routine = tuple_tb[0][2]
new_except.setErrorTrace(new_et)
#time to add the real description
new_except.addData("Real Description", descript)
#add the real traceback
new_except.addData("Traceback", string_tb)
errortrace = [new_except.errorTrace]
def __init__(self,
error_type,
error_code,
exception = None,
description = "None",
nvSeq = None,
level = 3,
severity = None,
sourceobject = ""):
'''
Parameters:
- error_type is the error type (a long)
- error_code is the error code (a long)
- exception is a previous exception from the ACS Error System, or a Python
native exception, in which case, an ErrorTrace will be constructed. The traceback
should be ok in most cases, but if you find that it isn't, a possible workaround is
converting the python exception to an ACS exception using pyExceptionToCORBA()
before passing it to an ACSError constructor. Remember, that if you don't use
pyExceptionToCORBA(), if
you are dealing with a native exception, you must pass create=1 to the ACSError
constructor.
- description is a stringified description of the errror
- nvSeq is a name-value sequence describing the error condition. Each value
should be of the type ACSErr.NameValue
- level is an offset from stack()
- severity is the severity of the error
'''
call_frame = stack()[level]
if nvSeq == None:
nvSeq = []
#Get the file name
filename = str(call_frame[1])
#Get the line number
line = str(call_frame[2])
#Get the routine name
routine = str(call_frame[3])
#Get the hostname
host = gethostname()
#Get the process ID
process = str(getpid())
#Try to get the thread ID
if currentThread() != None:
thread = str(currentThread().getName())
else:
thread = "Unavailable"
#Get the ACS time
time = getTimeStamp().value
# Client, components and containers have
frame = call_frame[0]
if 'self' in frame.f_locals and 'name' in frame.f_locals['self'].__dict__:
sourceObject = frame.f_locals['self'].name
else:
sourceObject = sourceobject
#Set the severity
if severity == None:
severity = ACSErr.Error
#let's get the traceback in case we are dealing
#with a Python native exception
from traceback import extract_tb,format_exc
string_tb=format_exc()
from sys import exc_info
tuple_tb=extract_tb(exc_info()[2])
try:
#If the previous exception is an ACS Error System Exception
if isinstance(exception.errorTrace, ACSErr.ErrorTrace):
#We can use an error stack...
errortrace = [ exception.errorTrace ]
except Exception, e:
if exception == None:
errortrace = []
else:
#In this case we are dealing with a native Python Exception
#so we have to "transform" it to an ACS exception
#(actually we are only interested in the ErrorTrace)
from ACSErrTypePythonNativeImpl import PythonExImpl
#next get the type of native_ex. this will be used as the short
#description
descript = exception.__doc__
#create the new exception
new_except = PythonExImpl()
#redo the error trace so that the level is one lower
new_et = ErrorTrace(new_except.getErrorType(),
new_except.getErrorCode(),
description = new_except.getDescription(),
level = 2, sourceobject=sourceObject)
#Now modify some fields
new_et.file=tuple_tb[0][0]
new_et.lineNum=tuple_tb[0][1]
new_et.routine=tuple_tb[0][2]
new_except.setErrorTrace(new_et)
#time to add the real description
new_except.addData("Real Description", descript)
#add the real traceback
new_except.addData("Traceback", string_tb)
errortrace= [ new_except.errorTrace ]
def pyExceptionToCORBA(native_ex):
'''
Useful function which converts a native Python function to an ACS Error
System CORBA exception. This is only to be used in situations
immediately after the native Python exception has can been caught.
Such an example is:
try:
print joe
except NameError, ex:
corba_ex = pyExceptionToCORBA(ex)
raise corba_ex
Parameters:
- native_ex is a native Python exception. This should not be derived
from any CORBA class.
Returns: native_ex converted to a
ACSErrTypePythonNativeImpl.ACSErrTypePythonNativeExImpl
Raises: ???
'''
from traceback import format_exc
from Acspy.Common.ErrorTrace import ErrorTrace
from ACSErrTypePythonNativeImpl import PythonExImpl
#first let's get the traceback in string format
string_tb = format_exc()
#next get the type of native_ex. this will be used as the short
#description
descript = native_ex.__doc__
#create the new exception
new_except = PythonExImpl()
#redo the error trace so that the level is one lower
new_et = ErrorTrace(new_except.getErrorType(),
new_except.getErrorCode(),
description=new_except.getDescription(),
level=2)
new_except.setErrorTrace(new_et)
#time to add the real description
new_except.addData("Real Description", descript)
#add the real traceback
new_except.addData("Traceback", string_tb)
return new_except