Re: [jetty-users] Jetty9 WebSocket Client - SessionFactory.createSession

[Ken OKABE <kenokabe@xxxxxxxxx>]

Joakim,

I found the example of files you provided is identical to
http://www.eclipse.org/jetty/documentation/current/jetty-websocket-client-api.html
which is handy to overview in a single page, so just for future reference.

Everything seems clear to me except one thing.
In the simple example, I found

ClientUpgradeRequest request = new ClientUpgradeRequest();
client.connect(socket, echoUri, request);

and I could not find any information for what exactly the
ClientUpgradeRequest is.

Referring to

http://download.eclipse.org/jetty/stable-9/apidocs/org/eclipse/jetty/websocket/client/WebSocketClient.html

Future<Session> connect(Object websocket, URI toUri)
Future<Session> connect(Object websocket, URI toUri,
ClientUpgradeRequest request)

You can omit ClientUpgradeRequest, and the example does not tweak this value.

Could you give me some pointer for what ClientUpgradeRequest is.

Thanks again.

Ken

On Thu, Jan 16, 2014 at 6:07 AM, Joakim Erdfelt <joakim@xxxxxxxxxxx> wrote:
> I need to write an update to that article.
>
> --
> Joakim Erdfelt <joakim@xxxxxxxxxxx>
> webtide.com - intalio.com/jetty
> Expert advice, services and support from from the Jetty & CometD experts
> eclipse.org/jetty - cometd.org
>
>
> On Wed, Jan 15, 2014 at 2:05 PM, Ken OKABE <kenokabe@xxxxxxxxx> wrote:
>>
>> Hi Joakim Erdfelt,
>>
>> Thanks to your advice, I understand.
>>
>> Probably, I can get through this issue since every factor seems
>> well-defined to me by your answer.
>>
>> During this research, I've read your article:
>>
>> http://webtide.intalio.com/2012/10/jetty-9-updated-websocket-api/
>>
>>
>> Regards,
>>
>> Ken
>>
>>
>>
>> On Thu, Jan 16, 2014 at 5:15 AM, Joakim Erdfelt <joakim@xxxxxxxxxxx>
>> wrote:
>> > see a simple example at
>> >
>> >
>> > http://git.eclipse.org/c/jetty/org.eclipse.jetty.project.git/tree/jetty-websocket/websocket-client/src/test/java/examples?id=jetty-9.1.1.v20140108
>> >
>> > There's no need to be mucking about with WebSocketSessionFactory,
>> > EventDriver, or LogicalConnection.
>> > Just keep it simple, use the socket you pass in as your communications
>> > channel.
>> > The Socket is configured by you to receive messages, and you use the
>> > session
>> > (obtained during socket open) to get information about the connection.
>> > Use the session.getRemote() to send messages.
>> >
>> >
>> > --
>> > Joakim Erdfelt <joakim@xxxxxxxxxxx>
>> > webtide.com - intalio.com/jetty
>> > Expert advice, services and support from from the Jetty & CometD experts
>> > eclipse.org/jetty - cometd.org
>> >
>> >
>> > On Wed, Jan 15, 2014 at 12:54 PM, Ken OKABE <kenokabe@xxxxxxxxx> wrote:
>> >>
>> >> Hi, I'm new to Jerry, and trying to implement WebSocket Client on
>> >> Jetty9.
>> >>
>> >> I saw an example on Jetty8.
>> >>
>> >> org.eclipse.jetty.websocket Class WebSocketClient
>> >>
>> >>
>> >>
>> >> http://archive.eclipse.org/jetty/8.0.0.v20110901/apidocs/org/eclipse/jetty/websocket/WebSocketClient.html
>> >>
>> >> to create a new instance of WebSocketClient is :
>> >> //=====================================================
>> >>    WebSocketClientFactory factory = new WebSocketClientFactory();
>> >>    factory.start();
>> >>
>> >>    WebSocketClient client = factory.newWebSocketClient();
>> >>    // Configure the client
>> >>
>> >>    WebSocket.Connection connection = client.open(new
>> >> URI("ws://127.0.0.1:8080/"), new WebSocket.OnTextMessage()
>> >>    {
>> >>      public void onOpen(Connection connection)
>> >>      {
>> >>        // open notification
>> >>      }
>> >>
>> >>      public void onClose(int closeCode, String message)
>> >>      {
>> >>        // close notification
>> >>      }
>> >>
>> >>      public void onMessage(String data)
>> >>      {
>> >>        // handle incoming message
>> >>      }
>> >>    }).get(5, TimeUnit.SECONDS);
>> >>
>> >>    connection.sendMessage("Hello World");
>> >> //===========================================================
>> >>
>> >> However, I've never seen a document for Jetty9 for this.
>> >>
>> >> So far, referring to
>> >>
>> >>
>> >> http://download.eclipse.org/jetty/9.1.0.v20131115/apidocs/org/eclipse/jetty/websocket/common/SessionFactory.html#createSession%28java.net.URI,%20org.eclipse.jetty.websocket.common.events.EventDriver,%20org.eclipse.jetty.websocket.common.LogicalConnection%29
>> >>
>> >> //----------------------------------------------
>> >> WebSocketSession createSession(URI requestURI,
>> >>                              EventDriver websocket,
>> >>                              LogicalConnection connection)
>> >> //----------------------------------------------
>> >>
>> >>  I've tried
>> >>
>> >> //===========================================================
>> >>          try
>> >>             {
>> >>                 WebSocketSession session = factory.createSession(uri,
>> >> eventDriver, connection);
>> >>                 RemoteEndpoint ep = session.getRemote();
>> >>             }
>> >>          catch (Exception ex)
>> >>             {
>> >>                 System.out.println("=ERROR= " + ex);
>> >>                 //=ERROR= java.lang.NullPointerException
>> >>             }
>> >>
>> >>         private EventDriver eventDriver = new EventDriver()
>> >>         {
>> >>             @Override
>> >>             public WebSocketPolicy getPolicy()
>> >>             {
>> >>                 return null;
>> >>             }
>> >>
>> >>             //......................................
>> >>
>> >>             @Override
>> >>             public void incomingFrame(Frame frame)
>> >>             {
>> >>
>> >>             }
>> >>         };
>> >>
>> >>         private LogicalConnection connection = new LogicalConnection()
>> >>         {
>> >>             @Override
>> >>             public void close()
>> >>             {
>> >>
>> >>             }
>> >>
>> >>             //...............................
>> >>
>> >>
>> >>             @Override
>> >>             public void resume()
>> >>             {
>> >>
>> >>             }
>> >>         };
>> >> //===========================================================
>> >>
>> >> but I've encounter  java.lang.NullPointerException
>> >>
>> >> How do we implement Jetty9 WebSocket Client ??
>> >>
>> >> Thanks for your advise.
>> >>
>> >> Ken
>> >> _______________________________________________
>> >> jetty-users mailing list
>> >> jetty-users@xxxxxxxxxxx
>> >> https://dev.eclipse.org/mailman/listinfo/jetty-users
>> >
>> >
>> >
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