/** Transport connected. {@link IOTransport} calls this when a connection is established. */
public void transportConnected() {
setState(STATE_READY);
if (reconnectTask != null) {
reconnectTask.cancel();
reconnectTask = null;
}
resetTimeout();
synchronized (outputBuffer) {
if (transport.canSendBulk()) {
ConcurrentLinkedQueue<String> outputBuffer = this.outputBuffer;
this.outputBuffer = new ConcurrentLinkedQueue<String>();
try {
// DEBUG
String[] texts = outputBuffer.toArray(new String[outputBuffer.size()]);
log.debug("Bulk start:");
for (String text : texts) {
log.debug("> " + text);
}
log.debug("Bulk end");
// DEBUG END
transport.sendBulk(texts);
} catch (IOException e) {
this.outputBuffer = outputBuffer;
}
} else {
String text;
while ((text = outputBuffer.poll()) != null) {
sendPlain(text);
}
}
this.keepAliveInQueue = false;
}
}
/** Invalidates an {@link IOTransport}, used for forced reconnecting. */
private void invalidateTransport() {
if (transport != null) {
transport.invalidate();
}
transport = null;
}
/**
* Sends a plain message to the {@link IOTransport}.
*
* @param text the Text to be send.
*/
private void sendPlain(String text) {
synchronized (outputBuffer) {
if (getState() == STATE_READY) {
try {
log.debug("> " + text);
transport.send(text);
} catch (Exception e) {
log.debug("IOEx: saving");
outputBuffer.add(text);
}
} else {
outputBuffer.add(text);
}
}
}
/** Cleanup. IOConnection is not usable after calling this. */
private void cleanup() {
setState(STATE_INVALID);
if (transport != null) {
transport.disconnect();
}
sockets.clear();
synchronized (connections) {
List<IOConnection> con = connections.get(urlStr);
if (con != null && con.size() > 1) {
con.remove(this);
} else {
connections.remove(urlStr);
}
}
log.debug("cleanup");
backgroundTimer.cancel();
}
/** Connect transport */
private void connectTransport() {
if (getState() == STATE_INVALID) {
return;
}
setState(STATE_CONNECTING);
if (protocols.contains(WebSocketTransport.TRANSPORT_NAME)) {
transport =
WebSocketTransport.create(this.url.getProtocol() + "://" + this.url.getAuthority(), this);
} else if (protocols.contains(XhrTransport.TRANSPORT_NAME)) {
transport =
XhrTransport.create(this.url.getProtocol() + "://" + this.url.getAuthority(), this);
} else {
error(
new SocketIOException(
"Server supports no available transports. You should reconfigure the server to support a available transport"));
return;
}
transport.connect();
}
/**
* Returns the name of the used transport
*
* @return the name of the currently used transport
*/
public String getTransport() {
IOTransport transport = this.connection.getTransport();
return transport != null ? transport.getName() : null;
}