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def camel(offset, *args):
parts = []
for a in args:
parts.extend(a.split("-"))
return "".join(parts[:offset] + [p[0].upper() + p[1:] for p in parts[offset:]])
def dromedary(s):
return s[0].lower() + s[1:]
def scream(*args):
return "_".join([a.replace("-", "_").upper() for a in args])
def num(x, default=None):
if x is not None and x != "":
return int(x, 0)
else:
return default
def klass(nd):
parent = nd.parent
while parent is not None:
if hasattr(parent, "name") and parent.name == "class":
return parent
parent = parent.parent
untyped = -1
def code(nd):
global untyped
cd = num(nd["@code"])
if cd is None:
cd = untyped
untyped -= 1
return cd
cls = klass(nd)
if cls:
cd |= (num(cls["@code"]) << 8)
return cd
def root(nd):
if nd.parent is None:
return nd
else:
return root(nd.parent)
def qname(nd):
name = nd["@name"]
cls = klass(nd)
if cls != None:
return "%s.%s" % (cls["@name"], name)
else:
return name
RESOLVED = {}
def resolve(node, name):
key = (node, name)
if RESOLVED.has_key(key):
return RESOLVED[key]
else:
spec = root(node)
cls = klass(node)
if cls:
for nd in cls.query["#tag"]:
if nd["@name"] == name:
RESOLVED[key] = nd
return nd
for nd in spec.query["amqp/#tag"] + spec.query["amqp/class/#tag"]:
if name == qname(nd):
RESOLVED[key] = nd
return nd
raise Exception("unresolved name: %s" % name)
def resolve_type(nd):
if hasattr(nd, "_resolved_type"):
return nd._resolved_type
else:
name = nd["@type"]
type = resolve(nd, name)
if type.name == "domain" and not type["enum"]:
type = resolve_type(type)
nd._resolved_type = type
return type
TYPES = {
"bit": "boolean",
"uint8": "short",
"uint16": "int",
"uint32": "long",
"uint64": "long",
"datetime": "long",
"uuid": "UUID",
"sequence-no": "int",
"sequence-set": "RangeSet", # XXX
"byte-ranges": "RangeSet", # XXX
"str8": "String",
"str16": "String",
"vbin8": "byte[]",
"vbin16": "byte[]",
"vbin32": "byte[]",
"struct32": "Struct",
"map": "Map<String,Object>",
"array": "List<Object>"
}
def cname(nd, field="@name"):
cls = klass(nd)
if cls:
if (nd.name in ("struct", "result") and
cls["@name"] != "session" and
nd[field] != "header"):
return camel(0, nd[field])
else:
return camel(0, cls["@name"], nd[field])
else:
return camel(0, nd[field])
def jtype(nd):
if nd.name == "struct" or nd["enum"]:
return cname(nd)
else:
return TYPES[nd["@name"]]
REFS = {
"boolean": "Boolean",
"byte": "Byte",
"short": "Short",
"int": "Integer",
"long": "Long",
"float": "Float",
"double": "Double",
"char": "Character"
}
def jref(jt):
return REFS.get(jt, jt)
def jclass(jt):
idx = jt.find('<')
if idx > 0:
return jt[:idx]
else:
return jt
DEFAULTS = {
"long": 0,
"int": 0,
"short": 0,
"byte": 0,
"char": 0,
"boolean": "false"
}
class Field:
def __init__(self, index, nd):
self.index = index
self.name = camel(1, nd["@name"])
self.type_node = resolve_type(nd)
if self.type_node.name == "domain":
self.prim_type = resolve_type(self.type_node)
else:
self.prim_type = self.type_node
self.variable_width = num(self.prim_type["@variable-width"], 0)
self.fixed_width = num(self.prim_type["@fixed-width"], 0)
self.empty = self.variable_width == 0 and self.fixed_width == 0 and self.prim_type.name != "struct"
tname = cname(self.type_node)
if self.type_node.name == "struct":
self.read = "(%s) dec.readStruct(%s.TYPE)" % (tname, tname)
self.write = "enc.writeStruct(%s.TYPE, check(struct).%s)" % (tname, self.name)
self.check = ""
self.coder = "Struct"
elif self.type_node.name == "domain":
self.coder = camel(0, self.prim_type["@name"])
self.read = "%s.get(dec.read%s())" % (tname, self.coder)
self.write = "enc.write%s(check(struct).%s.getValue())" % (self.coder, self.name)
self.check = ""
else:
self.coder = camel(0, self.type_node["@name"])
self.read = "dec.read%s()" % self.coder
self.write = "enc.write%s(check(struct).%s)" % (self.coder, self.name)
self.check = "Validator.check%s(value);" % self.coder
self.type = jtype(self.type_node)
self.default = DEFAULTS.get(self.type, "null")
self.has = camel(1, "has", self.name)
self.get = camel(1, "get", self.name)
self.set = camel(1, "set", self.name)
self.clear = camel(1, "clear", self.name)
if self.type == "boolean":
self.option = scream(nd["@name"])
else:
self.option = None
def flag_mask(self, pack):
flag = pack * 8 - 8 - (self.index/8)*8 + (self.index % 8)
return 1 << flag
def get_fields(nd):
fields = []
index = 0
for f in nd.query["field"]:
fields.append(Field(index, f))
index += 1
return fields
def get_parameters(fields):
params = []
options = False
for f in fields:
if f.option:
options = True
else:
params.append("%s %s" % (f.type, f.name))
if options:
params.append("Option ... _options")
return params
def get_arguments(fields):
args = []
options = False
for f in fields:
if f.option:
options = True
else:
args.append(f.name)
if options:
args.append("_options")
return args
def get_options(fields):
return [f for f in fields if f.option]
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