/**
* Convert a WatcherEvent sent over the wire into a full-fledged WatcherEvent
*/
internal WatchedEvent(WatcherEvent eventMessage)
{
keeperState = EnumUtil <Watcher.Event.KeeperState> .DefinedCast(eventMessage.getState());
eventType = EnumUtil <Watcher.Event.EventType> .DefinedCast(eventMessage.get_Type());
path = eventMessage.getPath();
}
public void testConvertingToEventWrapper()
{
WatchedEvent we = new WatchedEvent(Watcher.Event.EventType.NodeCreated, Watcher.Event.KeeperState.Expired, "blah");
WatcherEvent wew = we.getWrapper();
Assert.assertEquals((int)Watcher.Event.EventType.NodeCreated, wew.get_Type());
Assert.assertEquals((int)Watcher.Event.KeeperState.Expired, wew.getState());
Assert.assertEquals("blah", wew.getPath());
}
internal void readResponse(ByteBuffer incomingBuffer)
{
BigEndianBinaryReader bbis = new BigEndianBinaryReader(incomingBuffer.Stream);
BinaryInputArchive bbia = BinaryInputArchive.getArchive(bbis);
ReplyHeader replyHdr = new ReplyHeader();
((Record)replyHdr).deserialize(bbia, "header");
if (replyHdr.getXid() == -2)
{
// -2 is the xid for pings
if (LOG.isDebugEnabled())
{
LOG.debug("Got ping response for sessionid: 0x" + sessionId.ToHexString() + " after " +
((TimeHelper.ElapsedNanoseconds - lastPingSentNs) / 1000000) + "ms");
}
return;
}
if (replyHdr.getXid() == -4)
{
// -4 is the xid for AuthPacket
if (replyHdr.getErr() == (int)KeeperException.Code.AUTHFAILED)
{
state.Value = ZooKeeper.States.AUTH_FAILED;
queueEvent(new WatchedEvent(Watcher.Event.EventType.None,
Watcher.Event.KeeperState.AuthFailed, null));
}
if (LOG.isDebugEnabled())
{
LOG.debug("Got auth sessionid:0x"
+ sessionId.ToHexString());
}
return;
}
if (replyHdr.getXid() == -1)
{
// -1 means notification
if (LOG.isDebugEnabled())
{
LOG.debug("Got notification sessionid:0x"
+ sessionId.ToHexString());
}
WatcherEvent @event = new WatcherEvent();
((Record)@event).deserialize(bbia, "response");
// convert from a server path to a client path
if (chrootPath != null)
{
string serverPath = @event.getPath();
if (serverPath == chrootPath)
{
@event.setPath("/");
}
else if (serverPath.Length > chrootPath.Length)
{
@event.setPath(serverPath.Substring(chrootPath.Length));
}
else
{
LOG.warn("Got server path " + @event.getPath()
+ " which is too short for chroot path "
+ chrootPath);
}
}
WatchedEvent we = new WatchedEvent(@event);
if (LOG.isDebugEnabled())
{
LOG.debug("Got " + we + " for sessionid 0x" + sessionId.ToHexString());
}
queueEvent(we);
return;
}
Packet packet;
lock (pendingQueue) {
if (pendingQueue.size() == 0)
{
throw new IOException("Nothing in the queue, but got "
+ replyHdr.getXid());
}
packet = pendingQueue.First.Value;
pendingQueue.RemoveFirst();
}
/*
* Since requests are processed in order, we better get a response
* to the first request!
*/
try {
if (packet.requestHeader.getXid() != replyHdr.getXid())
{
packet.replyHeader.setErr((int)KeeperException.Code.CONNECTIONLOSS);
throw new IOException("Xid out of order. Got Xid "
+ replyHdr.getXid() + " with err "
+ +replyHdr.getErr() + " expected Xid "
+ packet.requestHeader.getXid()
+ " for a packet with details: " + packet);
}
packet.replyHeader.setXid(replyHdr.getXid());
packet.replyHeader.setErr(replyHdr.getErr());
packet.replyHeader.setZxid(replyHdr.getZxid());
if (replyHdr.getZxid() > 0)
{
lastZxid.Value = replyHdr.getZxid();
}
if (packet.response != null && replyHdr.getErr() == 0)
{
packet.response.deserialize(bbia, "response");
}
if (LOG.isDebugEnabled())
{
LOG.debug("Reading reply sessionid:0x" + sessionId.ToHexString() + ", packet:: " +
packet);
}
}
finally {
finishPacket(packet);
}
}