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example howto handle Exceptions in shell

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This commit is contained in:
Kamil Sopko
2016-03-10 16:01:50 +01:00
parent 4f2f989bdf
commit 6b527fa256
1 changed files with 55 additions and 31 deletions
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86
FlatCAMApp.py
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@@ -644,14 +644,32 @@ class App(QtCore.QObject):
else:
self.defaults['stats'][resource] = 1
class TclErrorException(Exception):
"""
this exception is deffined here, to be able catch it if we sucessfully handle all errors from shell command
"""
pass
def raiseTclUnknownError(self, unknownException):
"""
raise Exception if is different type than TclErrorException
:param unknownException:
:return:
"""
if not isinstance(unknownException, self.TclErrorException):
self.raiseTclError("Unknown error: %s" % str(unknownException))
def raiseTclError(self, text):
"""
this method pass exception from python into TCL as error, so we get stacktrace and reason
:param text: text of error
:return: raise exception
"""
self.tcl.eval('return -code error "%s"' % text)
raise Exception(text)
raise self.TclErrorException(text)
def exec_command(self, text):
"""
@@ -660,6 +678,7 @@ class App(QtCore.QObject):
:param text: Input command
:return: None
"""
self.report_usage('exec_command')
text = str(text)
@@ -2659,44 +2678,49 @@ class App(QtCore.QObject):
:param args: array of arguments
:return: "Ok" if completed without errors
'''
a, kwa = h(*args)
types = {'outname': str}
for key in kwa:
if key not in types:
self.raiseTclError('Unknown parameter: %s' % key)
try:
a, kwa = h(*args)
types = {'outname': str}
for key in kwa:
if key not in types:
self.raiseTclError('Unknown parameter: %s' % key)
try:
kwa[key] = types[key](kwa[key])
except Exception, e:
self.raiseTclError("Cannot cast argument '%s' to type %s." % (key, types[key]))
if name is None:
self.raiseTclError('Argument name is missing.')
try:
kwa[key] = types[key](kwa[key])
except Exception, e:
self.raiseTclError("Cannot cast argument '%s' to type %s." % (key, types[key]))
obj = self.collection.get_by_name(str(name))
except:
self.raiseTclError("Could not retrieve object: %s" % name)
if name is None:
self.raiseTclError('Argument name is missing.')
if obj is None:
self.raiseTclError("Object not found: %s" % name)
try:
obj = self.collection.get_by_name(str(name))
except:
self.raiseTclError("Could not retrieve object: %s" % name)
if not isinstance(obj, Geometry):
self.raiseTclError('Expected Geometry, got %s %s.' % (name, type(obj)))
if obj is None:
self.raiseTclError("Object not found: %s" % name)
def geo_init(geo_obj, app_obj):
geo_obj.solid_geometry = obj_interiors
if not isinstance(obj, Geometry):
self.raiseTclError('Expected Geometry, got %s %s.' % (name, type(obj)))
if 'outname' in kwa:
outname = kwa['outname']
else:
outname = name + ".interiors"
def geo_init(geo_obj, app_obj):
geo_obj.solid_geometry = obj_interiors
try:
obj_interiors = obj.get_interiors()
self.new_object('geometry', outname, geo_init)
except Exception as e:
self.raiseTclError("Failed: %s" % str(e))
if 'outname' in kwa:
outname = kwa['outname']
else:
outname = name + ".interiors"
try:
obj_interiors = obj.get_interiors()
self.new_object('geometry', outname, geo_init)
except Exception as e:
self.raiseTclError("Failed: %s" % str(e))
except Exception as unknown:
self.raiseTclUnknownError(unknown)
return 'Ok'