deb-murano/murano/dsl/principal_objects/stack_trace.py
Ravi Shekhar Jethani 7ea4442e9c Fix import order of modules
Make corrections in import order for six, yaml, eventlet and
greenlet as per OpenStack import standards [1].

[1] http://docs.openstack.org/developer/hacking/#import-order-template

Change-Id: I26feb4adb81e8b07a7a36ac7f0a6235536a8c119
2016-01-24 23:34:03 -08:00

112 lines
3.6 KiB
Python

# Copyright (c) 2014 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import inspect
import os.path
import six
from yaql import specs
from murano.dsl import constants
from murano.dsl import dsl
from murano.dsl import dsl_types
from murano.dsl import helpers
from murano.dsl import yaql_integration
@dsl.name('io.murano.StackTrace')
class StackTrace(object):
def __init__(self, this, context, include_native_frames=True):
frames = []
caller_context = context
while True:
if not caller_context:
break
frame = compose_stack_frame(caller_context)
frames.append(frame)
caller_context = helpers.get_caller_context(caller_context)
frames.reverse()
frames.pop()
if include_native_frames:
native_frames = []
for frame in inspect.trace()[1:]:
location = dsl_types.ExpressionFilePosition(
os.path.abspath(frame[1]), frame[2],
-1, frame[2], -1)
method = frame[3]
native_frames.append({
'instruction': frame[4][0].strip(),
'location': location,
'method': method,
'class': None
})
frames.extend(native_frames)
this.data().frames = frames
@specs.meta(constants.META_NO_TRACE, True)
@specs.meta('Usage', 'Action')
def to_string(self, this, prefix=''):
return '\n'.join([format_frame(t, prefix)for t in this['frames']])
def compose_stack_frame(context):
instruction = helpers.get_current_instruction(context)
method = helpers.get_current_method(context)
return {
'instruction': None if instruction is None
else six.text_type(instruction),
'location': None if instruction is None
else instruction.source_file_position,
'method': None if method is None else method.name,
'class': None if method is None else method.murano_class.name
}
def format_frame(frame, prefix=''):
instruction = frame['instruction']
method = frame['method']
murano_class = frame['class']
location = frame['location']
if murano_class:
method += ' of class ' + murano_class
if location:
args = (
os.path.abspath(location.file_path),
location.start_line,
':' + str(location.start_column)
if location.start_column >= 0 else '',
method,
instruction,
prefix
)
return (u'{5}File "{0}", line {1}{2} in method {3}\n'
u'{5} {4}').format(*args)
else:
return u'{2}File <unknown> in method {0}\n{2} {1}'.format(
method, instruction, prefix)
def create_stack_trace(context, include_native_frames=True):
stacktrace = yaql_integration.call_func(
context, 'new', 'io.murano.StackTrace',
includeNativeFrames=include_native_frames)
executor = helpers.get_executor(context)
return dsl.MuranoObjectInterface(
stacktrace, executor)