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import os
import sys
import traceback
from .utils.text_opts import *
try:
basestring
except NameError:
basestring = str
# basic error for API
class STLError(Exception):
def __init__ (self, msg):
self.msg = str(msg)
self.stack = traceback.extract_stack()
def __str__ (self):
self.tb = traceback.extract_tb(sys.exc_info()[2])
if not self.tb:
return self.msg
s = format_text("\n******\n", 'bold')
s += format_text("\nException stack (most recent call last):\n\n", 'underline')
for i, line in enumerate(self.tb):
fname, lineno, func, src = os.path.split(line[0])[1], line[1], line[2], line[3]
s += "#{:<2} {:<50} - '{}'\n".format(len(self.tb) - i - 1, format_text(fname, 'bold') + ':' + format_text(lineno, 'bold'), format_text(src.strip(), 'bold'))
s += format_text('\nSummary error message:\n\n', 'underline')
s += format_text(self.msg + '\n', 'bold')
return s
def brief (self):
return self.msg
# raised when the client state is invalid for operation
class STLStateError(STLError):
def __init__ (self, op, state):
self.msg = "Operation '{0}' is not valid while '{1}'".format(op, state)
self.tb = traceback.extract_stack()
# port state error
class STLPortStateError(STLError):
def __init__ (self, port, op, state):
self.msg = "Operation '{0}' on port(s) '{1}' is not valid while port(s) '{2}'".format(op, port, state)
self.tb = traceback.extract_stack()
# raised when argument value is not valid for operation
class STLArgumentError(STLError):
def __init__ (self, name, got, valid_values = None, extended = None):
self.tb = traceback.extract_stack()
self.msg = "Argument: '{0}' invalid value: '{1}'".format(name, got)
if valid_values:
self.msg += " - valid values are '{0}'".format(valid_values)
if extended:
self.msg += "\n{0}".format(extended)
# raised when argument type is not valid for operation
class STLTypeError(STLError):
def __init__ (self, arg_name, arg_type, valid_types):
self.tb = traceback.extract_stack()
self.msg = "Argument: '%s' invalid type: '%s', expecting type(s): %s." % (arg_name, arg_type.__name__,
[t.__name__ for t in valid_types] if isinstance(valid_types, tuple) else valid_types.__name__)
# raised when timeout occurs
class STLTimeoutError(STLError):
def __init__ (self, timeout):
self.tb = traceback.extract_stack()
self.msg = "Timeout: operation took more than '{0}' seconds".format(timeout)
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