سؤال

I am using Atmosphere in my grails application. every thing is fine when running application from my IDE (IntelliJ Idea). but when I deploy it to tomcat (7.0) following exception raises:

2013-07-08 09:07:19,118 [ajp-nio-8009-exec-13] ERROR cpr.AtmosphereFramework  - AtmosphereFramework exception
java.lang.IllegalStateException: Not supported.
    at org.atmosphere.cpr.AtmosphereRequest.startAsync(AtmosphereRequest.java:594)
    at org.atmosphere.container.Servlet30CometSupport.suspend(Servlet30CometSupport.java:138)
    at org.atmosphere.container.Servlet30CometSupport.service(Servlet30CometSupport.java:104)
    at org.atmosphere.container.Tomcat7Servlet30SupportWithWebSocket.doService(Tomcat7Servlet30SupportWithWebSocket.java:65)
    at org.atmosphere.container.TomcatWebSocketUtil.doService(TomcatWebSocketUtil.java:87)
    at org.atmosphere.container.Tomcat7Servlet30SupportWithWebSocket.service(Tomcat7Servlet30SupportWithWebSocket.java:61)
    at org.atmosphere.cpr.AtmosphereFramework.doCometSupport(AtmosphereFramework.java:1571)
    at org.atmosphere.cpr.AtmosphereServlet.doPost(AtmosphereServlet.java:176)
    at org.atmosphere.cpr.AtmosphereServlet.doGet(AtmosphereServlet.java:162)
    at com.googlecode.psiprobe.Tomcat70AgentValve.invoke(Tomcat70AgentValve.java:38)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)

myservlet config in web.xml is:

<servlet>
        <description>MeteorServlet</description>
        <servlet-name>MeteorServlet</servlet-name>
        <servlet-class>org.grails.plugin.platform.events.push.GrailsMeteorServlet</servlet-class>
        <init-param>
            <param-name>org.atmosphere.cpr.broadcaster.shareableThreadPool</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>org.atmosphere.cpr.broadcaster.maxProcessingThreads</param-name>
            <param-value>20</param-value>
        </init-param>
        <init-param>
            <param-name>org.atmosphere.cpr.broadcaster.maxAsyncWriteThreads</param-name>
            <param-value>20</param-value>
        </init-param>
        <load-on-startup>0</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>

usage is

var receivedOrders = new Array();
    var grailsEvents = new grails.Events("${rootPath}",
    {
        transport: 'sse',
        fallbackTransport: 'long-polling',
        timeout: 10000,
        onMessage: function(data){
            try{
                if(data.responseBody.length > 0){
                    var order = jQuery.parseJSON(data.responseBody).body;
                    if(order.id){
                        if (receivedOrders.indexOf(order.id) == -1) {
                        receivedOrders[receivedOrders.length] = order.id;
                        var url = "<g:createLink controller="orderAdministration" action="orderNotification"/>";
                        $.ajax({
                            type: "POST",
                            url: url,
                            data: { id: order.id }
                        }).done(function (response) {
                                    if (response != "0") {
                                        $.msgGrowl({
                                            type: 'info', sticky: true, 'title': '${message(code: 'order.notification.title')}', 'text': response, lifetime: 5000
                                        });
                                    }
                                });
                        }
                    }
                }
            } catch (e) {
                // Atmosphere sends commented out data to WebKit based browsers
            }
        }
    });

    grailsEvents.on('order_event', function(data){});

it seems some thing is wrong with tomcat configuration. any idea?

EDIT:

I have tested it. but does not work.

the problem occured because I have provided options in grails.Events. by changing to this, exception solved.

var receivedOrders = new Array();
    var grailsEvents = new grails.Events("${rootPath}");

    function handleOrderEvent(data){
        try{
            if(data.id){
                if (receivedOrders.indexOf(data.id) == -1) {
                    receivedOrders[receivedOrders.length] = data.id;
                    var url = "<g:createLink controller="orderAdministration" action="orderNotification"/>";
                    $.ajax({
                        type: "POST",
                        url: url,
                        data: { id: data.id }
                    }).done(function (response) {
                        if (response != "0") {
                            $.msgGrowl({
                                type: 'info', sticky: true, 'title': '${message(code: 'order.notification.title')}', 'text': response, lifetime: 5000
                            });
                        }
                    });
                }
            }
        }catch (e) {
        // Atmosphere sends commented out data to WebKit based browsers
        }
    }

    grailsEvents.on('order_event', handleOrderEvent, {transport:'long-polling', fallbackTransport:'polling'});

but still no event is propagated to client!

I have an apache webserver in front of tomcat. events fired in services but not in javascript.

هل كانت مفيدة؟

المحلول

There is an other response from JF Arcand (the creator of the Atmospehere framework) : http://atmosphere-framework.2306103.n4.nabble.com/org-apache-catalina-connector-Request-startAsync-Not-Supported-td4651994.html

you either needs to add in your web.xml

<servlet-class>org.atmosphere.cpr.AtmosphereServlet</servlet-class>
<async-supported>true</async-supported>

to enable Servlet 3.0, or add

 <init-param>
      <param-name>org.atmosphere.useNative</param-name>
      <param-value>true</param-value>
  </init-param>

As async-supported is already defined, you should try to set the org.atmosphere.useNative to true

نصائح أخرى

Usually to make Atmosphere work with Tomcat (v6 - I am not sure with Tomcat 7), I change the connector protocol (HTTP/1.1 to HttpNio) like this in the server.xml :

 <Service name="Catalina">
  <!--    
    <Connector port="8080" address="xxx.xxx.xxx.xxx" protocol="HTTP/1.1" ..../>
  -->
  <!-- 
    HTTP 1.1 protocol is replaced with org.apache.coyote.http11.Http11NioProtocol 
  -->
  <Connector port="8080" address="xxx.xxx.xxx.xxx" protocol="org.apache.coyote.http11.Http11NioProtocol" />
  ...
  </Service>

Maybe that is the problem...

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