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Re: [jetty-users] SPDYClient within a Servlet
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Using 1.7.0_u25 with the npn-boot 1.1.5.v20130313 in the bootclasspath.
Setting org.eclipse.jetty.spdy=DEBUG does not give me anything. As
SPDYClient.Factory* and SPDYClient.connect doesn't actually log anything
before I gets to the TimeoutException.
While tracing the code to where it throws the exception I can see that
it enters the SPDYClient.connect method:
Session session = client.connect(new
InetSocketAddress("www.googleapis.com", 443), null).get(5,
TimeUnit.SECONDS);
Finishes it up, and then goes to
org.eclipse.jetty.util.FuturePromise#get, there it waits in
if(!_latch.wait(timeout,unit)) for the given set of seconds, then throws
an TimeoutException.
The obvious solution should have been that the server never actually
answers within the given time, but increasing the time doesn't help, and
while running the same code in a main class it works great by going to:
if (_cause==COMPLETED)
Espen
On 09/06/13 17:09, Thomas Becker wrote:
> Hi Espen,
>
> which JVM are you running this with and is the npn jar in the
> bootclasspath?
> Have you tried setting org.eclipse.jetty.spdy to debug loglevel and
> checked the output?
>
> Cheers,
> Thomas
>
> Am 9/6/13 9:59 AM, schrieb Espen A. Fossen:
>> Hi
>>
>> Have been toying around with SPDYClient to make a simple spdy based call
>> to a public Google REST API. The code is based upon examples found in
>> http://wiki.eclipse.org/Jetty/Feature/SPDY and
>> SSLExternalServerTest.java (spdy-http-server).
>>
>> The code runs just fine in a main() method, but when trying the same
>> code wrapped in a simple Servlet, StreamFrameListenere.onData() is never
>> called:
>>
>> @WebServlet(urlPatterns = {"/rest"})
>> public class SPDYBasedRestCallServlet extends HttpServlet {
>>
>> private static final long serialVersionUID = 1L;
>> private SPDYClient client;
>>
>> @Override
>> public void init() throws ServletException {
>>
>> QueuedThreadPool threadPool = new QueuedThreadPool();
>> SslContextFactory sslContextFactory = new SslContextFactory();
>> sslContextFactory.setIncludeProtocols("TLSv1");
>> sslContextFactory.setEndpointIdentificationAlgorithm("");
>> SPDYClient.Factory clientFactory = new
>> SPDYClient.Factory(threadPool, null, sslContextFactory, 30000);
>>
>> try {
>> clientFactory.start();
>> } catch (Exception e) {
>> throw new ServletException(e);
>> }
>> client = clientFactory.newSPDYClient(SPDY.V3);
>> }
>>
>> @Override
>> protected void doGet(HttpServletRequest request,
>> HttpServletResponse
>> response) throws IOException {
>>
>> final PrintWriter out = response.getWriter();
>> response.setContentType("text/html;charset=UTF-8");
>>
>> StreamFrameListener streamListener = new
>> StreamFrameListener.Adapter()
>> {
>> public void onData(Stream stream, DataInfo dataInfo)
>> {
>> // Data received from server
>> String content = dataInfo.asString("UTF-8", true);
>> out.append(content);
>> }
>> };
>>
>> try {
>> Session session = client.connect(new
>> InetSocketAddress("www.googleapis.com", 443), null).get(5,
>> TimeUnit.SECONDS);
>>
>> Fields headers = new Fields();
>> headers.put(HTTPSPDYHeader.SCHEME.name(SPDY.V3), "https");
>> headers.put(HTTPSPDYHeader.HOST.name(SPDY.V3),
>> "www.googleapis.com" + ":" + "443");
>> headers.put(HTTPSPDYHeader.METHOD.name(SPDY.V3), "GET");
>> headers.put(HTTPSPDYHeader.URI.name(SPDY.V3),
>> "/urlshortener/v1/url?shortUrl=http://goo.gl/fbsS";);
>> headers.put(HTTPSPDYHeader.VERSION.name(SPDY.V3),
>> "HTTP/1.1");
>>
>> // Start a new session, and configure the stream listener
>> session.syn(new SynInfo(headers, true), streamListener);
>> } catch (ExecutionException | InterruptedException |
>> TimeoutException e) {
>> e.printStackTrace();
>> }
>> }
>> }
>>
>> The servlet return a page, but a TimeoutException is thrown in the logs,
>> which I guess is because the StreamFrameListenere.onData() is never
>> called.
>>
>> java.util.concurrent.TimeoutException
>> at org.eclipse.jetty.util.FuturePromise.get(FuturePromise.java:130)
>> at
>> com.test.SPDYBasedRestCallServlet.doGet(SPDYBasedRestCallServlet.java:65)
>>
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:735)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
>> at
>> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:698)
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:505)
>>
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:138)
>>
>> at
>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:564)
>>
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:213)
>>
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1096)
>>
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:432)
>>
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:175)
>>
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1030)
>>
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:136)
>>
>> at
>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:201)
>>
>> at
>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109)
>>
>> at
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
>>
>> at org.eclipse.jetty.server.Server.handle(Server.java:445)
>> at
>> org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:268)
>> at
>> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:229)
>>
>> at
>> org.eclipse.jetty.io.AbstractConnection$ReadCallback.run(AbstractConnection.java:358)
>>
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:601)
>>
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:532)
>>
>> at java.lang.Thread.run(Thread.java:724)
>>
>> While the webapp runs using jetty-maven-plugin:run (9.0.5.v20130815),
>> both the main method test and webapp shares the same dependencies to:
>>
>> * org.eclipse.jetty:jetty-server:9.0.5.v20130815
>> * org.eclipse.jetty.spdy:spdy-core:9.0.5.v20130815
>> * org.eclipse.jetty.spdy:spdy-client:9.0.5.v20130815
>> * org.eclipse.jetty.spdy:spdy-http-server:9.0.5.v20130815
>> * org.eclipse.jetty.npn:npn-api:1.1.0.v20120525
>>
>> Any help would be appreciated.
>>
>> Regards,
>> Espen
>>
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>>
>
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