void cancel(final HttpServerExchange exchange) {
final ProxyConnection connectionAttachment = exchange.getAttachment(CONNECTION);
if (connectionAttachment != null) {
ClientConnection clientConnection = connectionAttachment.getConnection();
UndertowLogger.PROXY_REQUEST_LOGGER.timingOutRequest(
clientConnection.getPeerAddress() + "" + exchange.getRequestURI());
IoUtils.safeClose(clientConnection);
} else {
UndertowLogger.PROXY_REQUEST_LOGGER.timingOutRequest(exchange.getRequestURI());
}
if (exchange.isResponseStarted()) {
IoUtils.safeClose(exchange.getConnection());
} else {
exchange.setStatusCode(StatusCodes.SERVICE_UNAVAILABLE);
exchange.endExchange();
}
}
protected ResponseEntity<String> executeRequest(
URI url, HttpString method, HttpHeaders headers, String body) {
CountDownLatch latch = new CountDownLatch(1);
List<ClientResponse> responses = new CopyOnWriteArrayList<ClientResponse>();
try {
ClientConnection connection =
this.undertowBufferSupport
.httpClientConnect(this.httpClient, url, this.worker, this.optionMap)
.get();
try {
ClientRequest request = new ClientRequest().setMethod(method).setPath(url.getPath());
request.getRequestHeaders().add(HttpString.tryFromString(HttpHeaders.HOST), url.getHost());
if (body != null && !body.isEmpty()) {
HttpString headerName = HttpString.tryFromString(HttpHeaders.CONTENT_LENGTH);
request.getRequestHeaders().add(headerName, body.length());
}
addHttpHeaders(request, headers);
connection.sendRequest(request, createRequestCallback(body, responses, latch));
latch.await();
ClientResponse response = responses.iterator().next();
HttpStatus status = HttpStatus.valueOf(response.getResponseCode());
HttpHeaders responseHeaders = toHttpHeaders(response.getResponseHeaders());
String responseBody = response.getAttachment(RESPONSE_BODY);
return (responseBody != null
? new ResponseEntity<String>(responseBody, responseHeaders, status)
: new ResponseEntity<String>(responseHeaders, status));
} finally {
IoUtils.safeClose(connection);
}
} catch (IOException ex) {
throw new SockJsTransportFailureException("Failed to execute request to " + url, ex);
} catch (InterruptedException ex) {
throw new SockJsTransportFailureException(
"Interrupted while processing request to " + url, ex);
}
}