Examples with AsyncEvent javax.servlet.AsyncEvent used on opensource projects

Example 51 with AsyncEvent

use of javax.servlet.AsyncEvent in project jwt by emweb.

the class ServletApi3 method doHandleRequest.

@Override
public void doHandleRequest(final WtServlet servlet, final WebRequest request, final WebResponse response) {
    if (request.isAsyncSupported()) {
        request.startAsync();
        final long asyncContextTimeout = servlet.getConfiguration().getAsyncContextTimeout();
        request.getAsyncContext().setTimeout(asyncContextTimeout);
        final AtomicBoolean handleRequestFinished = new AtomicBoolean(false);
        class MutableWrapper<T> {

            T t = null;
        }
        final MutableWrapper<Thread> threadWrapper = new MutableWrapper<Thread>();
        request.getAsyncContext().addListener(new AsyncListener() {

            @Override
            public void onTimeout(AsyncEvent e) throws IOException {
                if (handleRequestFinished.get())
                    return;
                String newLine = "\n\t";
                StringBuilder params = new StringBuilder("Parameters: " + newLine);
                for (Map.Entry<String, String[]> param : request.getParameterMap().entrySet()) params.append(param.getKey()).append(": ").append(Arrays.toString(param.getValue())).append(newLine);
                int uploadedFilesCount = 0;
                if (request.getUploadedFiles() != null)
                    uploadedFilesCount = request.getUploadedFiles().size();
                StringBuilder msg = new StringBuilder();
                msg.append("Timeout: waiting more then ").append(asyncContextTimeout).append(newLine).append("url: ").append(request.getRequestURL()).append(newLine).append("Uploaded files count: ").append(uploadedFilesCount).append(newLine).append(params);
                if (threadWrapper.t != null)
                    msg.append("AsyncContext thread stack trace: ").append(newLine).append(Arrays.toString(threadWrapper.t.getStackTrace()).replaceAll(", ", newLine));
                logger.error(msg.toString(), e.getThrowable());
            }

            @Override
            public void onStartAsync(AsyncEvent arg0) throws IOException {
            }

            @Override
            public void onError(AsyncEvent e) throws IOException {
                logger.error("Error during async request ", e.getThrowable());
            }

            @Override
            public void onComplete(AsyncEvent arg0) throws IOException {
            }
        });
        request.getAsyncContext().start(new Runnable() {

            @Override
            public void run() {
                threadWrapper.t = Thread.currentThread();
                handleRequest(servlet, request, response);
                handleRequestFinished.set(true);
            }
        });
    } else
        handleRequest(servlet, request, response);
}