public String getUrl(int connectionCount) {
String url = client.getUrl();
if (client.getSerializer() != null && client.getSerializer().getMode() == SerialMode.DE_RPC) {
url +=
(url.contains("?") ? "&" : "?")
+ Constants.MODULE_BASE_PARAMETER
+ '='
+ GWT.getModuleBaseURL()
+ '&'
+ Constants.STRONG_NAME_PARAMETER
+ '='
+ GWT.getPermutationStrongName();
}
String className = getClass().getName();
className = className.substring(className.lastIndexOf('.') + 1);
String transport = className.substring(0, className.indexOf("CometTransport"));
return url
+ (url.contains("?") ? "&" : "?")
+ "t="
+ Integer.toString(
(int) (Duration.currentTimeMillis() % Integer.MAX_VALUE), Character.MAX_RADIX)
.toUpperCase()
+ "&c="
+ connectionCount
+ "&tr="
+ transport;
}
protected void onReceiving(int statusCode, String responseText, boolean connected) {
if (statusCode != Response.SC_OK) {
if (!connected) {
expectingDisconnection = true;
listener.onError(new StatusCodeException(statusCode, responseText), connected);
}
} else {
int index = responseText.lastIndexOf(SEPARATOR);
if (index > read) {
List<Serializable> messages = new ArrayList<Serializable>();
JsArrayString data = AtmosphereClient.split(responseText.substring(read, index), SEPARATOR);
int length = data.length();
for (int i = 0; i < length; i++) {
if (aborted) {
return;
}
parse(data.get(i), messages);
}
read = index + 1;
if (!messages.isEmpty()) {
listener.onMessage(messages);
}
}
if (!connected) {
if (expectingDisconnection) {
listener.onDisconnected();
} else {
listener.onError(new AtmosphereClientException("Unexpected disconnection"), false);
}
}
}
}
public void initialize() {
MyCometListener cometListener = new MyCometListener();
AtmosphereGWTSerializer serializer = GWT.create(EventSerializer.class);
// set a small length parameter to force refreshes
// normally you should remove the length parameter
client = new AtmosphereClient(GWT.getModuleBaseURL() + "gwtComet", serializer, cometListener);
client.start();
}
protected Serializable parse(String message) throws SerializationException {
if (message == null || message.isEmpty()) {
return null;
}
AtmosphereGWTSerializer serializer = client.getSerializer();
if (serializer == null) {
throw new SerializationException(
"Can not deserialize message with no serializer: " + message);
} else {
return serializer.parse(message);
}
}