def setHeader(self, new):
"""
Applies a new header to this channel. If this channel already has a
header, then the new values are merged with the existing.
@param new: The header to apply to this channel.
@type new: L{header.Header}
@return: The previous header, if there is one.
@rtype: L{header.Header} or C{None}
"""
old = self.header
if self.header is None:
self.header = new
else:
self.header = header.merge(self.header, new)
if new.timestamp == -1:
# receiving a new message and no timestamp has been supplied means
# we use the last known
if self.bytes == 0:
self.setTimestamp(self._lastDelta, True)
else:
if not new.continuation:
self.setTimestamp(new.timestamp, not new.full)
self._bodyRemaining = self.header.bodyLength - self.bytes
return old
def setHeader(self, new):
"""
Applies a new header to this channel. If this channel already has a
header, then the new values are merged with the existing.
@param new: The header to apply to this channel.
@type new: L{header.Header}
@return: The previous header, if there is one.
@rtype: L{header.Header} or C{None}
"""
old = self.header
if self.header is None:
self.header = new
else:
self.header = header.merge(self.header, new)
if new.timestamp == -1:
# receiving a new message and no timestamp has been supplied means
# we use the last known
if self.bytes == 0:
self.setTimestamp(self._lastDelta, True)
else:
if not new.continuation:
self.setTimestamp(new.timestamp, not new.full)
self._bodyRemaining = self.header.bodyLength - self.bytes
return old
def mergeHeader(self, new):
"""
Merge a new header with the current one and return the result.
This allows subclasses to override this behaviour if necessary.
@param new: The L{header.Header} to be merged.
@rtype: L{header.Header}.
"""
return header.merge(self.header, new)
def merge(self, **kwargs):
"""
Generates a relative header and with the same channelId on each call.
"""
import copy
h = copy.copy(self.absolute)
for k, v in kwargs.items():
setattr(h, k, v)
return header.merge(self.absolute, h)
def merge(self, **kwargs):
"""
Generates a relative header and with the same channelId on each call.
"""
import copy
h = copy.copy(self.absolute)
for k, v in kwargs.items():
setattr(h, k, v)
return header.merge(self.absolute, h)
