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import libxml2
import cStringIO
import exceptions
def process_introspection_data(data):
method_map = {}
XMLREADER_START_ELEMENT_NODE_TYPE = 1
XMLREADER_END_ELEMENT_NODE_TYPE = 15
stream = cStringIO.StringIO(data.encode('utf-8'))
input_source = libxml2.inputBuffer(stream)
reader = input_source.newTextReader("urn:introspect")
ret = reader.Read()
current_iface = None
current_method = None
current_sigstr = ''
while ret == 1:
name = reader.LocalName()
if reader.NodeType() == XMLREADER_START_ELEMENT_NODE_TYPE:
if (not current_iface and not current_method and name == 'interface'):
current_iface = reader.GetAttribute('name')
elif (current_iface and not current_method and name == 'method'):
current_method = reader.GetAttribute('name')
if reader.IsEmptyElement():
method_map[current_iface + '.' + current_method] = ''
current_method = None
current_sigstr = ''
elif (current_iface and current_method and name == 'arg'):
direction = reader.GetAttribute('direction')
if not direction or direction == 'in':
current_sigstr = current_sigstr + reader.GetAttribute('type')
elif reader.NodeType() == XMLREADER_END_ELEMENT_NODE_TYPE:
if (current_iface and not current_method and name == 'interface'):
current_iface = None
if (current_iface and current_method and name == 'method'):
method_map[current_iface + '.' + current_method] = current_sigstr
current_method = None
current_sigstr = ''
ret = reader.Read()
if ret != 0:
raise exceptions.IntrospectionParserException(data)
return method_map
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