final String extraParams, final boolean forceSync) {
startRequest();
// Security: double cookie submission pattern
- final String rd = uidlSecurityKey + VAR_BURST_SEPARATOR + requestData;
- VConsole.log("Making UIDL Request with params: " + rd);
+ final String payload = uidlSecurityKey + VAR_BURST_SEPARATOR
+ + requestData;
+ VConsole.log("Making UIDL Request with params: " + payload);
String uri;
if (configuration.usePortletURLs()) {
uri = configuration.getPortletUidlURLBase();
uri = addGetParameters(uri, "windowName=" + windowName);
}
- if (!forceSync) {
- final RequestBuilder rb = new RequestBuilder(RequestBuilder.POST,
- uri);
- // TODO enable timeout
- // rb.setTimeoutMillis(timeoutMillis);
- rb.setHeader("Content-Type", "text/plain;charset=utf-8");
- try {
- rb.sendRequest(rd, new RequestCallback() {
- public void onError(Request request, Throwable exception) {
- showCommunicationError(exception.getMessage());
- endRequest();
- if (!applicationRunning) {
- // start failed, let's try to start the next app
- ApplicationConfiguration.startNextApplication();
- }
+ doUidlRequest(uri, payload, forceSync);
+
+ }
+
+ /**
+ * Sends an asynchronous or synchronous UIDL request to the server using the
+ * given URI.
+ *
+ * @param uri
+ * The URI to use for the request. May includes GET parameters
+ * @param payload
+ * The contents of the request to send
+ * @param synchronous
+ * true if the request should be synchronous, false otherwise
+ */
+ protected void doUidlRequest(final String uri, final String payload,
+ final boolean synchronous) {
+ if (!synchronous) {
+ RequestCallback requestCallback = new RequestCallback() {
+ public void onError(Request request, Throwable exception) {
+ showCommunicationError(exception.getMessage());
+ endRequest();
+ if (!applicationRunning) {
+ // start failed, let's try to start the next app
+ ApplicationConfiguration.startNextApplication();
}
+ }
- public void onResponseReceived(Request request,
- Response response) {
- VConsole.log("Server visit took "
- + String.valueOf((new Date()).getTime()
- - requestStartTime.getTime()) + "ms");
-
- int statusCode = response.getStatusCode();
-
- switch (statusCode) {
- case 0:
- showCommunicationError("Invalid status code 0 (server down?)");
- endRequest();
- return;
-
- case 401:
- /*
- * Authorization has failed. Could be that the
- * session has timed out and the container is
- * redirecting to a login page.
- */
- showAuthenticationError("");
- endRequest();
- return;
-
- case 503:
- // We'll assume msec instead of the usual seconds
- int delay = Integer.parseInt(response
- .getHeader("Retry-After"));
- VConsole.log("503, retrying in " + delay + "msec");
- (new Timer() {
- @Override
- public void run() {
- activeRequests--;
- makeUidlRequest(requestData, extraParams,
- forceSync);
- }
- }).schedule(delay);
- return;
+ public void onResponseReceived(Request request,
+ Response response) {
+ VConsole.log("Server visit took "
+ + String.valueOf((new Date()).getTime()
+ - requestStartTime.getTime()) + "ms");
- }
+ int statusCode = response.getStatusCode();
- if ((statusCode / 100) == 4) {
- // Handle all 4xx errors the same way as (they are
- // all permanent errors)
- showCommunicationError("UIDL could not be read from server. Check servlets mappings. Error code: "
- + statusCode);
- endRequest();
- return;
- }
+ switch (statusCode) {
+ case 0:
+ showCommunicationError("Invalid status code 0 (server down?)");
+ endRequest();
+ return;
+
+ case 401:
+ /*
+ * Authorization has failed. Could be that the session
+ * has timed out and the container is redirecting to a
+ * login page.
+ */
+ showAuthenticationError("");
+ endRequest();
+ return;
+
+ case 503:
+ // We'll assume msec instead of the usual seconds
+ int delay = Integer.parseInt(response
+ .getHeader("Retry-After"));
+ VConsole.log("503, retrying in " + delay + "msec");
+ (new Timer() {
+ @Override
+ public void run() {
+ activeRequests--;
+ doUidlRequest(uri, payload, synchronous);
+ }
+ }).schedule(delay);
+ return;
- final Date start = new Date();
- // for(;;);[realjson]
- final String jsonText = response.getText().substring(9,
- response.getText().length() - 1);
- final ValueMap json;
- try {
- json = parseJSONResponse(jsonText);
- } catch (final Exception e) {
- endRequest();
- showCommunicationError(e.getMessage()
- + " - Original JSON-text:" + jsonText);
- return;
- }
+ }
- VConsole.log("JSON parsing took "
- + (new Date().getTime() - start.getTime())
- + "ms");
- if (applicationRunning) {
- handleReceivedJSONMessage(start, jsonText, json);
- } else {
- applicationRunning = true;
- handleWhenCSSLoaded(jsonText, json);
- ApplicationConfiguration.startNextApplication();
- }
+ if ((statusCode / 100) == 4) {
+ // Handle all 4xx errors the same way as (they are
+ // all permanent errors)
+ showCommunicationError("UIDL could not be read from server. Check servlets mappings. Error code: "
+ + statusCode);
+ endRequest();
+ return;
}
- });
+ final Date start = new Date();
+ // for(;;);[realjson]
+ final String jsonText = response.getText().substring(9,
+ response.getText().length() - 1);
+ final ValueMap json;
+ try {
+ json = parseJSONResponse(jsonText);
+ } catch (final Exception e) {
+ endRequest();
+ showCommunicationError(e.getMessage()
+ + " - Original JSON-text:" + jsonText);
+ return;
+ }
+
+ VConsole.log("JSON parsing took "
+ + (new Date().getTime() - start.getTime()) + "ms");
+ if (applicationRunning) {
+ handleReceivedJSONMessage(start, jsonText, json);
+ } else {
+ applicationRunning = true;
+ handleWhenCSSLoaded(jsonText, json);
+ ApplicationConfiguration.startNextApplication();
+ }
+ }
+ };
+ try {
+ doAsyncUIDLRequest(uri, payload, requestCallback);
} catch (RequestException e) {
VConsole.error(e);
endRequest();
} else {
// Synchronized call, discarded response (leaving the page)
SynchronousXHR syncXHR = (SynchronousXHR) SynchronousXHR.create();
- syncXHR.synchronousPost(uri + "&" + PARAM_UNLOADBURST + "=1", rd);
+ syncXHR.synchronousPost(uri + "&" + PARAM_UNLOADBURST + "=1",
+ payload);
/*
* Although we are in theory leaving the page, the page may still
* stay open. End request properly here too. See #3289
*/
endRequest();
}
+
+ }
+
+ /**
+ * Sends an asynchronous UIDL request to the server using the given URI.
+ *
+ * @param uri
+ * The URI to use for the request. May includes GET parameters
+ * @param payload
+ * The contents of the request to send
+ * @param requestCallback
+ * The handler for the response
+ * @throws RequestException
+ * if the request could not be sent
+ */
+ protected void doAsyncUIDLRequest(String uri, String payload,
+ RequestCallback requestCallback) throws RequestException {
+ RequestBuilder rb = new RequestBuilder(RequestBuilder.POST, uri);
+ // TODO enable timeout
+ // rb.setTimeoutMillis(timeoutMillis);
+ rb.setHeader("Content-Type", "text/plain;charset=utf-8");
+ rb.setRequestData(payload);
+ rb.setCallback(requestCallback);
+
+ rb.send();
}
int cssWaits = 0;
projects / vaadin-framework.git / commitdiff