twisted.words.xish.xmlstream.XmlStream : API documentation

Generic Streaming XML protocol handler.

This protocol handler will parse incoming data as XML and dispatch events accordingly. Incoming stanzas can be handled by registering observers using XPath-like expressions that are matched against each stanza. See utility.EventDispatcher for details.

Method	__init__	Undocumented
Method	connectionMade	Called when a connection is made.
Method	dataReceived	Called whenever data is received.
Method	connectionLost	Called when the connection is shut down.
Method	onDocumentStart	Called whenever the start tag of a root element has been received.
Method	onElement	Called whenever a direct child element of the root element has been received.
Method	onDocumentEnd	Called whenever the end tag of the root element has been received.
Method	setDispatchFn	Set another function to handle elements.
Method	resetDispatchFn	Set the default function (`onElement`) to handle elements.
Method	send	Send data over the stream.
Method	_initializeStream	Sets up XML Parser.

Inherited from Protocol:

Method

logPrefix

Return a prefix matching the class name, to identify log messages related to this protocol instance.

Inherited from BaseProtocol (via Protocol):

Method

makeConnection

Make a connection to a transport and a server.

Inherited from EventDispatcher:

Method	addOnetimeObserver	Register a one-time observer for an event.
Method	addObserver	Register an observer for an event.
Method	removeObserver	Remove callable as observer for an event.
Method	dispatch	Dispatch an event.
Method	_getEventAndObservers	Undocumented
Method	_addObserver	Undocumented

def __init__(self): (source)

overrides twisted.words.xish.utility.EventDispatcher.__init__

overridden in twisted.words.protocols.jabber.xmlstream.XmlStream

Undocumented

def _initializeStream(self): (source)

Sets up XML Parser.

def connectionMade(self): (source)

from twisted.internet.interfaces.IProtocol

overrides twisted.internet.protocol.BaseProtocol.connectionMade

overridden in twisted.words.protocols.jabber.xmlstream.XmlStream

Called when a connection is made.

Sets up the XML parser and dispatches the STREAM_CONNECTED_EVENT event indicating the connection has been established.

def dataReceived(self, data): (source)

from twisted.internet.interfaces.IProtocol

overrides twisted.internet.protocol.Protocol.dataReceived

Called whenever data is received.

Passes the data to the XML parser. This can result in calls to the DOM handlers. If a parse error occurs, the STREAM_ERROR_EVENT event is called to allow for cleanup actions, followed by dropping the connection.

def connectionLost(self, reason): (source)

from twisted.internet.interfaces.IProtocol

overrides twisted.internet.protocol.Protocol.connectionLost

Called when the connection is shut down.

Dispatches the STREAM_END_EVENT.

def onDocumentStart(self, rootElement): (source)

overridden in twisted.words.protocols.jabber.xmlstream.XmlStream

Called whenever the start tag of a root element has been received.

Dispatches the STREAM_START_EVENT.

def onElement(self, element): (source)

Called whenever a direct child element of the root element has been received.

Dispatches the received element.

def onDocumentEnd(self): (source)

Called whenever the end tag of the root element has been received.

Closes the connection. This causes connectionLost being called.

def setDispatchFn(self, fn): (source)

Set another function to handle elements.

def resetDispatchFn(self): (source)

Set the default function (onElement) to handle elements.

def send(self, obj): (source)

overridden in twisted.words.protocols.jabber.xmlstream.XmlStream

Send data over the stream.

Sends the given obj over the connection. obj may be instances of domish.Element, unicode and str. The first two will be properly serialized and/or encoded. str objects must be in UTF-8 encoding.

Note: because it is easy to make mistakes in maintaining a properly encoded str object, it is advised to use unicode objects everywhere when dealing with XML Streams.

Parameters obj Object to be sent over the stream. (type: domish.Element, domish or str )

t.w.x.x.XmlStream(protocol.Protocol, utility.EventDispatcher) : class documentation