def _parseTimestamp(self, ts):
# Take TS in YYYY-MM-DDThh:mm:ss.ssZ format, return timestamp in
# nanoseconds since the epoch
# time.strptime() doesn't handle the fractional seconds part. We ignore
# it entirely, after verifying that it has the right format.
tsmain, trailing = ts[:-4], ts[-4:]
if trailing[0] != '.' or trailing[3] != 'Z' or \
not trailing[1].isdigit() or not trailing[2].isdigit():
raise fxml.ParserError("Invalid timestamp %s" % ts)
formatString = "%Y-%m-%dT%H:%M:%S"
try:
timestruct = time.strptime(tsmain, formatString)
return int(calendar.timegm(timestruct) * gst.SECOND)
except ValueError:
raise fxml.ParserError("Invalid timestamp %s" % ts)
def _parseAttributes(self, node, required, optional):
out = []
for k in required:
if node.hasAttribute(k):
out.append(node.getAttribute(k))
else:
raise fxml.ParserError("Missing required attribute %s" % k)
for k in optional:
if node.hasAttribute(k):
out.append(node.getAttribute(k))
else:
out.append(None)
return out
def parseFile(self, file, piid=None):
"""
Parse a playlist file. Adds the contents of the file to the existing
playlist, overwriting any existing entries for the same time period.
"""
parser = fxml.Parser()
root = parser.getRoot(file)
node = root.documentElement
self.debug("Parsing playlist from file %s", file)
if node.nodeName != 'playlist':
raise fxml.ParserError("Root node is not 'playlist'")
self.blockDiscovery()
try:
for child in node.childNodes:
if child.nodeType == Node.ELEMENT_NODE and \
child.nodeName == 'entry':
self.debug("Parsing entry")
self._parsePlaylistEntry(parser, child, piid)
finally:
self.unblockDiscovery()