blob: 964ff15e5714383727b220223a0a703362cf8eeb [file] [log] [blame]
# Copyright 2017-present Open Networking Foundation
#
# 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 plyxproto.model as m
from plyxproto.helpers import Visitor
import pdb
import argparse
import plyxproto.parser as plyxproto
from plyxproto.logicparser import FOLParser, FOLLexer
import traceback
import sys
import jinja2
import os
import ply.lex as lex
import ply.yacc as yacc
class Stack(list):
def push(self,x):
self.append(x)
def str_to_dict(s):
lst = s.rsplit('.',1)
name = lst[-1]
if len(lst)==2:
package = lst[0]
else:
package = ''
return {'name': name, 'package': package, 'fqn': s}
def replace_link(obj):
try:
link = obj.link
try:
through = link['through']
except KeyError:
through = None
try:
through_str = through[1:-1]
except TypeError:
through_str = None
if through_str:
through_dict = str_to_dict(through_str)
else:
through_dict = {}
model_dict = str_to_dict(link['model'][1:-1])
ls = m.LinkSpec(obj, m.LinkDefinition(link['link'][1:-1],obj.name,model_dict,link['port'][1:-1],through_dict))
return ls
except:
return obj
class Proto2XProto(Visitor):
fol_lexer = lex.lex(module=FOLLexer())
fol_parser = yacc.yacc(module=FOLParser(), start='goal')
def __init__(self):
super(Proto2XProto, self).__init__()
self.stack = Stack()
self.count_stack = Stack()
self.content=""
self.offset=0
self.statementsChanged=0
self.message_options = {}
self.options = {}
self.current_message_name = None
self.xproto_message_options = ['bases']
self.xproto_field_options = ['model']
self.verbose = 0
self.first_field = True
self.first_method = True
def replace_policy(self, obj):
if isinstance(obj, m.OptionStatement):
rhs = obj.value.value.pval
if rhs.startswith('"') and rhs.endswith('"'):
rhs = rhs[1:-1]
if rhs.startswith('policy:'):
str = rhs.split(':')[1]
val = self.fol_parser.parse(str, lexer = self.fol_lexer)
return m.PolicyDefinition(obj.name, val)
return obj
def proto_to_xproto_field(self, obj):
try:
opts = {}
for fd in obj.fieldDirective:
k = fd.pval.name.value.pval
v = fd.pval.value.value.pval
opts[k]=v
if ('model' in opts and 'link' in opts and 'port' in opts):
obj.link = opts
pass
except KeyError:
raise
def proto_to_xproto_message(self, obj):
try:
try:
bases = self.message_options['bases'].split(',')
except KeyError:
bases = []
bases = map(lambda x:str_to_dict(x[1:-1]), bases)
obj.bases = bases
except KeyError:
raise
def map_field(self, obj, s):
if 'model' in s:
link = m.LinkDefinition('onetoone','src','name','dst', obj.linespan, obj.lexspan, obj.p)
lspec = m.LinkSpec(link, obj)
else:
lspec = obj
return lspec
def get_stack(self):
return self.stack
def visit_PackageStatement(self, obj):
'''Ignore'''
return True
def visit_ImportStatement(self, obj):
'''Ignore'''
return True
def visit_OptionStatement(self, obj):
if (self.current_message_name):
k = obj.name.value.pval
self.message_options[k] = obj.value.value.pval
if (k in self.xproto_message_options):
obj.mark_for_deletion = True
else:
self.options[obj.name.value.pval] = obj.value.value.pval
return True
def visit_LU(self, obj):
return True
def visit_default(self, obj):
return True
def visit_FieldDirective(self, obj):
return True
def visit_FieldDirective_post(self, obj):
return True
def visit_FieldType(self, obj):
return True
def visit_LinkDefinition(self, obj):
return True
def visit_FieldDefinition(self, obj):
return True
def visit_FieldDefinition_post(self, obj):
self.proto_to_xproto_field(obj)
return True
def visit_EnumFieldDefinition(self, obj):
return True
def visit_EnumDefinition(self, obj):
return True
def visit_MessageDefinition(self, obj):
self.current_message_name = obj.name.value.pval
self.message_options = {}
return True
def visit_MessageDefinition_post(self, obj):
self.proto_to_xproto_message(obj)
obj.body = filter(lambda x:not hasattr(x, 'mark_for_deletion'), obj.body)
obj.body = map(replace_link, obj.body)
self.current_message_name = None
return True
def visit_MessageExtension(self, obj):
return True
def visit_MethodDefinition(self, obj):
return True
def visit_ServiceDefinition(self, obj):
return True
def visit_ExtensionsDirective(self, obj):
return True
def visit_Literal(self, obj):
return True
def visit_Name(self, obj):
return True
def visit_DotName(self, obj):
return True
def visit_Proto(self, obj):
self.count_stack.push(len(obj.body))
return True
def visit_Proto_post(self, obj):
obj.body = [self.replace_policy(o) for o in obj.body]
return True
def visit_LinkSpec(self, obj):
return False