def virtual_members(self):
virtual_members = []
if self.ir_class.is_subclassof("of_oxm"):
value_member = find(lambda m: m.name, self.ir_model_members)
if value_member:
oxm_entry = model.oxm_map[self.interface.name]
virtual_members += [
JavaVirtualMember(
self, "matchField",
java_type.make_match_field_jtype(
value_member.java_type.public_type),
"MatchField.%s" % oxm_entry.value),
JavaVirtualMember(self, "masked", java_type.boolean,
"true" if oxm_entry.masked else "false"),
]
else:
virtual_members += [
JavaVirtualMember(self, "matchField",
java_type.make_match_field_jtype(),
"null"),
JavaVirtualMember(self, "masked", java_type.boolean,
"false"),
]
if not find(lambda m: m.name == "version", self.ir_model_members):
virtual_members.append(
JavaVirtualMember(
self, "version", java_type.of_version,
"OFVersion.%s" % self.version.constant_version))
return tuple(virtual_members)
def virtual_members(self):
virtual_members = []
if self.ir_class.is_subclassof("of_oxm"):
value_member = find(lambda m: m.name, self.ir_model_members)
if value_member:
oxm_entry = model.oxm_map[self.interface.name]
virtual_members += [
JavaVirtualMember(self, "matchField", java_type.make_match_field_jtype(value_member.java_type.public_type), "MatchField.%s" % oxm_entry.value),
JavaVirtualMember(self, "masked", java_type.boolean, "true" if oxm_entry.masked else "false"),
]
else:
virtual_members += [
JavaVirtualMember(self, "matchField", java_type.make_match_field_jtype(), "null"),
JavaVirtualMember(self, "masked", java_type.boolean, "false"),
]
elif self.ir_class.is_subclassof("of_oxs"):
value_member = find(lambda m: m.name, self.ir_model_members)
if value_member:
oxs_entry = model.oxs_map[self.interface.name]
virtual_members += [
JavaVirtualMember(self, "statField", java_type.make_stat_field_jtype(value_member.java_type.public_type), "StatField.%s" % oxs_entry.value),
JavaVirtualMember(self, "masked", java_type.boolean, "true" if oxs_entry.masked else "false"),
]
else:
virtual_members += [
JavaVirtualMember(self, "statField", java_type.make_stat_field_jtype(), "null"),
JavaVirtualMember(self, "masked", java_type.boolean, "false"),
]
if not find(lambda m: m.name == "version", self.ir_model_members):
virtual_members.append(JavaVirtualMember(self, "version", java_type.of_version, "OFVersion.%s" % self.version.constant_version))
return tuple(virtual_members)
def virtual_members(self):
virtual_members = []
if self.name == "OFOxm":
virtual_members += [
JavaVirtualMember(self, "value", java_type.generic_t),
JavaVirtualMember(self, "mask", java_type.generic_t),
JavaVirtualMember(self, "matchField", java_type.make_match_field_jtype("T")),
JavaVirtualMember(self, "masked", java_type.boolean),
JavaVirtualMember(self, "canonical", java_type.make_oxm_jtype("T"))
]
elif self.ir_class.is_subclassof("of_oxm"):
value = find(lambda m: m.name=="value", self.ir_model_members)
if value:
field_type = java_type.make_match_field_jtype(value.java_type.public_type)
else:
field_type = java_type.make_match_field_jtype()
virtual_members += [
JavaVirtualMember(self, "matchField", field_type),
JavaVirtualMember(self, "masked", java_type.boolean),
JavaVirtualMember(self, "canonical", java_type.make_oxm_jtype(value.java_type.public_type),
custom_template=lambda builder: "OFOxm{}_getCanonical.java".format(".Builder" if builder else "")),
]
if not find(lambda x: x.name == "mask", self.ir_model_members):
virtual_members.append(
JavaVirtualMember(self, "mask", find(lambda x: x.name == "value", self.ir_model_members).java_type))
elif self.name =="OFErrorMsg":
virtual_members += [ JavaVirtualMember(self, "data", java_type.error_cause_data) ]
if not find(lambda m: m.name == "version", self.ir_model_members):
virtual_members.append(JavaVirtualMember(self, "version", java_type.of_version))
return tuple(virtual_members)
def virtual_members(self):
virtual_members = []
if self.name == "OFOxm":
virtual_members += [
JavaVirtualMember(self, "value", java_type.generic_t),
JavaVirtualMember(self, "mask", java_type.generic_t),
JavaVirtualMember(self, "matchField", java_type.make_match_field_jtype("T")),
JavaVirtualMember(self, "masked", java_type.boolean),
]
elif self.parent_interface and self.parent_interface.startswith("OFOxm"):
field_type = java_type.make_match_field_jtype(model.oxm_map[self.name].type_name) \
if self.name in model.oxm_map \
else java_type.make_match_field_jtype()
virtual_members += [
JavaVirtualMember(self, "matchField", field_type),
JavaVirtualMember(self, "masked", java_type.boolean),
]
if not find(lambda x: x.name == "mask", self.ir_model_members):
virtual_members.append(JavaVirtualMember(self, "mask", find(lambda x: x.name == "value", self.ir_model_members).java_type))
if not find(lambda m: m.name == "version", self.ir_model_members):
virtual_members.append(JavaVirtualMember(self, "version", java_type.of_version))
return tuple(virtual_members)
def entry_by_c_name(self, name):
res = find(lambda e: e.c_name == name, self.entries)
if res:
return res
else:
raise KeyError("Enum %s: no entry with c_name %s" %
(self.name, name))
def virtual_members(self):
virtual_members = []
if self.name == "OFOxm":
virtual_members += [
JavaVirtualMember(self, "value", java_type.generic_t),
JavaVirtualMember(self, "mask", java_type.generic_t),
JavaVirtualMember(self, "matchField",
java_type.make_match_field_jtype("T")),
JavaVirtualMember(self, "masked", java_type.boolean),
JavaVirtualMember(self, "canonical",
java_type.make_oxm_jtype("T"))
]
elif self.ir_class.is_subclassof("of_oxm"):
value = find(lambda m: m.name == "value", self.ir_model_members)
if value:
field_type = java_type.make_match_field_jtype(
value.java_type.public_type)
else:
field_type = java_type.make_match_field_jtype()
virtual_members += [
JavaVirtualMember(self, "matchField", field_type),
JavaVirtualMember(self, "masked", java_type.boolean),
JavaVirtualMember(
self,
"canonical",
java_type.make_oxm_jtype(value.java_type.public_type),
custom_template=lambda builder: "OFOxm{}_getCanonical.java"
.format(".Builder" if builder else "")),
]
if not find(lambda x: x.name == "mask", self.ir_model_members):
virtual_members.append(
JavaVirtualMember(
self, "mask",
find(lambda x: x.name == "value",
self.ir_model_members).java_type))
elif self.name == "OFErrorMsg":
virtual_members += [
JavaVirtualMember(self, "data", java_type.error_cause_data)
]
if not find(lambda m: m.name == "version", self.ir_model_members):
virtual_members.append(
JavaVirtualMember(self, "version", java_type.of_version))
return tuple(virtual_members)
def create_ofinput(ast):
"""
Create an OFInput from an AST
@param ast An AST as returned by loxi_front_end.parser.parse
@returns An OFInput object
"""
ctx = FrontendCtx(set())
ofinput = OFInput(wire_versions=set(), classes=[], enums=[])
for decl_ast in ast:
if decl_ast[0] == 'struct':
# 0: "struct"
# 1: name
# 2: potentially list of [param_name, param_value]
# 3: super_class or None
# 4: list of members
superclass = decl_ast[3]
members = [create_member(m_ast, ctx) for m_ast in decl_ast[4]]
discriminators = [ m for m in members if isinstance(m, OFDiscriminatorMember) ]
if len(discriminators) > 1:
raise InputError("%s: Cannot support more than one discriminator by class - got %s" %
(decl_ast[1], repr(discriminators)))
ofclass = OFClass(name=decl_ast[1], members=members, superclass=superclass,
virtual = len(discriminators) > 0,
params = { param: value for param, value in decl_ast[2] })
ofinput.classes.append(ofclass)
if decl_ast[0] == 'enum':
# 0: "enum"
# 1: name
# 2: potentially list of [param_name, param_value]
# 3: list of [constant_name, constant_value]+
enum = OFEnum(name=decl_ast[1],
entries=[OFEnumEntry(name=x[0], value=x[2], params={param:value for param, value in x[1] }) for x in decl_ast[3]],
params = { param: value for param, value in decl_ast[2] }
)
ofinput.enums.append(enum)
elif decl_ast[0] == 'metadata':
if decl_ast[1] == 'version':
if decl_ast[2] == 'any':
ofinput.wire_versions.update(of_g.wire_ver_map.keys())
elif int(decl_ast[2]) in of_g.supported_wire_protos:
ofinput.wire_versions.add(int(decl_ast[2]))
else:
raise InputError("Unrecognized wire protocol version %r" % decl_ast[2])
found_wire_version = True
if not ofinput.wire_versions:
raise InputError("Missing #version metadata")
for used_enum in ctx.used_enums:
if not find(lambda e: e.name == used_enum, ofinput.enums):
raise Exception("Undeclared enum used in OFInput: {}".format(used_enum))
return ofinput
def entry_by_version_value(self, version, value):
res = find(
lambda e: e.values[version] == value
if version in e.values else False, self.entries)
if res:
return res
else:
raise KeyError("Enum %s: no entry with version %s, value %s" %
(self.name, version, value))
def lookup_ir_wiretype(oftype, version):
""" if of is a reference to an enum in ir, resolve it to the wiretype
declared in that enum. Else return oftype """
enums = loxi_globals.ir[version].enums
enum = find(lambda e: e.name == oftype, enums)
if enum and 'wire_type' in enum.params:
return enum.params['wire_type']
else:
return oftype
def lookup_ir_wiretype(oftype, version):
""" if of is a reference to an enum in ir, resolve it to the wiretype
declared in that enum. Else return oftype """
enums = of_g.ir[version].enums
enum = find(lambda e: e.name == oftype, enums)
if enum and 'wire_type' in enum.params:
return enum.params['wire_type']
else:
return oftype
def virtual_members(self):
virtual_members = []
if self.interface.parent_interface and self.interface.parent_interface.startswith("OFOxm"):
if self.interface.name in model.oxm_map:
oxm_entry = model.oxm_map[self.interface.name]
virtual_members += [
JavaVirtualMember(self, "matchField", java_type.make_match_field_jtype(oxm_entry.type_name), "MatchField.%s" % oxm_entry.value),
JavaVirtualMember(self, "masked", java_type.boolean, "true" if oxm_entry.masked else "false"),
]
else:
virtual_members += [
JavaVirtualMember(self, "matchField", java_type.make_match_field_jtype(), "null"),
JavaVirtualMember(self, "masked", java_type.boolean, "false"),
]
if not find(lambda m: m.name == "version", self.ir_model_members):
virtual_members.append(JavaVirtualMember(self, "version", java_type.of_version, "OFVersion.%s" % self.version.constant_version))
return tuple(virtual_members)
def virtual_members(self):
if self.name == "OFOxm":
return (
JavaVirtualMember(self, "value", java_type.generic_t),
JavaVirtualMember(self, "mask", java_type.generic_t),
JavaVirtualMember(self, "matchField", java_type.make_match_field_jtype("T")),
JavaVirtualMember(self, "masked", java_type.boolean),
)
elif self.parent_interface and self.parent_interface.startswith("OFOxm"):
field_type = java_type.make_match_field_jtype(model.oxm_map[self.name].type_name) \
if self.name in model.oxm_map \
else java_type.make_match_field_jtype()
return (
JavaVirtualMember(self, "matchField", field_type),
JavaVirtualMember(self, "masked", java_type.boolean),
) \
+ \
(
( JavaVirtualMember(self, "mask", find(lambda x: x.name == "value", self.ir_model_members).java_type), ) if not find(lambda x: x.name == "mask", self.ir_model_members) else
()
)
else:
return ()
def discriminator(self):
return find(lambda m: isinstance(m, OFDiscriminatorMember), self.ir_class.members)
def lookup_ir_enum(oftype, version):
""" if oftype is a reference to an enum in ir,
return the value-name mapping; otherwise return None """
enums = loxi_globals.ir[version].enums
return find(lambda e: e.name == oftype, enums)
def member_by_name(self, name):
return find(lambda m: m.name == name, self.members)
def enum_by_name(self, name):
res = find(lambda e: e.name == name, self.enums)
if not res:
raise KeyError("Could not find enum with name %s" % name)
return res
def interface_by_name(self, name):
return find(lambda i: erase_type_annotation(i.name) == erase_type_annotation(name), self.interfaces)
def enum_by_name(self, name):
return find(lambda enum: enum.name == name, self.enums)
def entry_by_version_value(self, version, value):
res = find(lambda e: e.values[version] == value if version in e.values else False, self.entries)
if res:
return res
else:
raise KeyError("Enum %s: no entry with version %s, value %s" % (self.name, version, value))
def has_type_members(self):
return find(lambda m: isinstance(m, OFTypeMember),
self.members) is not None
def discriminator(self):
return find(lambda m: type(m) == OFDiscriminatorMember, self.members)
def enum_by_name(self, name):
return find(lambda enum: enum.name == name, self.enums)
def member_by_name(self, name):
return find(lambda m: hasattr(m, "name") and m.name == name, self.members)
def superclass(self):
return find(lambda c: c.version == self.version and c.c_name == self.ir_class.superclass, model.all_classes)
def masked_enum_group(self):
group = find(lambda g: self.name in g.members, model.masked_enum_groups[self.enum.name])
return group
def discriminator(self):
return find(lambda m: type(m) == OFDiscriminatorMember, self.members)
def class_by_name(self, name):
return find(lambda ofclass: ofclass.name == name, self.classes)
def member_by_name(self, name):
return find(lambda m: hasattr(m, "name") and m.name == name,
self.members)
def length_member(self):
return find(lambda m: type(m) == OFLengthMember, self.members)
def length_member(self):
return find(lambda m: type(m) == OFLengthMember, self.members)
def has_type_members(self):
return find(lambda m: isinstance(m, OFTypeMember), self.members) is not None
def class_by_name(self, name):
return find(lambda ofclass: ofclass.name == name, self.classes)
def entry_by_c_name(self, name):
res = find(lambda e: e.c_name == name, self.entries)
if res:
return res
else:
raise KeyError("Enum %s: no entry with c_name %s" % (self.name, name))
