def _writeInteger(self, n):
"""
AMF3 integers are encoded.
@param n: The integer data to be encoded to the AMF3 data stream.
@type n: integer data
@see: U{Parsing Integers on OSFlash
<http://osflash.org/documentation/amf3/parsing_integers>}
for more info.
"""
self.stream.write(encode_int(n))
def writeInteger(self, n, **kwargs):
"""
Writes an integer to the stream.
@type n: integer data
@param n: The integer data to be encoded to the AMF3 data stream.
"""
if n < MIN_29B_INT or n > MAX_29B_INT:
self.writeNumber(float(n))
return
self.stream.write(TYPE_INTEGER)
self.stream.write(encode_int(n))
def writeObject(self, obj, use_proxies=None):
"""
Writes an object to the stream.
@param obj: The object data to be encoded to the AMF3 data stream.
@type obj: object data
@raise EncodeError: Encoding an object in amf3 tagged as amf0 only.
"""
if use_proxies is None:
use_proxies = self.use_proxies
if use_proxies is True:
self.writeProxy(obj)
return
self.stream.write(TYPE_OBJECT)
ref = self.context.getObjectReference(obj)
if ref is not None:
self._writeInteger(ref << 1)
return
self.context.addObject(obj)
# object is not referenced, serialise it
kls = obj.__class__
definition = self.context.getClass(kls)
alias = None
class_ref = False # if the class definition is a reference
if definition:
class_ref = True
alias = definition.alias
if alias.anonymous and definition.reference is not None:
class_ref = True
else:
try:
alias = pyamf.get_class_alias(kls)
except pyamf.UnknownClassAlias:
alias_klass = util.get_class_alias(kls)
meta = util.get_class_meta(kls)
alias = alias_klass(kls, defer=True, **meta)
definition = ClassDefinition(alias)
self.context.addClass(definition, alias.klass)
if class_ref:
self.stream.write(definition.reference)
else:
ref = 0
if definition.encoding != ObjectEncoding.EXTERNAL:
ref += definition.attr_len << 4
final_reference = encode_int(ref | definition.encoding << 2 |
REFERENCE_BIT << 1 | REFERENCE_BIT)
self.stream.write(final_reference)
definition.reference = encode_int(
definition.reference << 2 | REFERENCE_BIT)
if alias.anonymous:
self.stream.write_uchar(0x01)
else:
self._writeString(alias.alias)
# work out what the final reference for the class will be.
# this is okay because the next time an object of the same
# class is encoded, class_ref will be True and never get here
# again.
if alias.external:
obj.__writeamf__(DataOutput(self))
return
attrs = alias.getEncodableAttributes(obj, codec=self)
if alias.static_attrs:
if not class_ref:
[self._writeString(attr) for attr in alias.static_attrs]
for attr in alias.static_attrs:
value = attrs.pop(attr)
self.writeElement(value)
if definition.encoding == ObjectEncoding.STATIC:
return
if definition.encoding == ObjectEncoding.DYNAMIC:
if attrs:
for attr, value in attrs.iteritems():
self._writeString(attr)
self.writeElement(value)
self.stream.write_uchar(0x01)
b = stream.read_uchar()
n += 1
if n < 3:
result <<= 7
result |= b
else:
result <<= 8
result |= b
if result & 0x10000000 != 0:
if signed:
result -= 0x20000000
else:
result <<= 1
result += 1
return result
try:
from cpyamf.amf3 import encode_int, decode_int
except ImportError:
pass
pyamf.register_class(ByteArray)
for x in range(0, 20):
ENCODED_INT_CACHE[x] = encode_int(x)
del x
