[jira] [Assigned] (KARAF-7804) Cannot register more than one HTTP proxy

["Jean-Baptiste Onofré (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KARAF-7804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Baptiste Onofré reassigned KARAF-7804:
-------------------------------------------

    Assignee: Jean-Baptiste Onofré

> Cannot register more than one HTTP proxy
> ----------------------------------------
>
>                 Key: KARAF-7804
>                 URL: https://issues.apache.org/jira/browse/KARAF-7804
>             Project: Karaf
>          Issue Type: Bug
>          Components: karaf
>            Reporter: Aleksy Wróblewski
>            Assignee: Jean-Baptiste Onofré
>            Priority: Major
>
> When you register more than one proxy into ProxyService, it crashes with the following exception:
>  
> {code:java}
> org.osgi.service.http.NamespaceException: ServletModel{id=ServletModel-49,name='org.apache.karaf.http.core.internal.proxy.ProxyServlet',alias='/kb',urlPatterns=[/kb/*],servlet=org.apache.karaf.http.core.internal.proxy.ProxyServlet@6bad2ac1,contexts=[
> {HS,OCM-48,default,/}]} can't be registered. ServletContextModel\{id=ServletContextModel-2,contextPath='/'} already contains servlet named org.apache.karaf.http.core.internal.proxy.ProxyServlet: ServletModel{id=ServletModel-47,name='org.apache.karaf.http.core.internal.proxy.ProxyServlet',alias='/webconsole',urlPatterns=[/webconsole/*],servlet=org.apache.karaf.http.core.internal.proxy.ProxyServlet@4ce53d9c,contexts=[\{HS,OCM-48,default,/}
> ]}
> {code}
>  
> The important part: *already* *contains servlet named org.apache.karaf.http.core.internal.proxy.ProxyServlet*
>  
> This is because servlet-name is not specified when registering a new ProxyServlet into HttpService. So PAX-WEB defaults to the fully qualified class name, as specified in HTTP whiteboard spec section 140.4. ([https://docs.osgi.org/specification/osgi.cmpn/7.0.0/service.http.whiteboard.html#service.http.whiteboard-i21223311).] But the class name is the same for subsequent Servlets, so there is a conflict.
> This is also easy to see when you modify org.apache.karaf.itests.HttpTest.testProxy to register two proxies and check if both are registered:
> {code:java}
> @Test
> public void testProxy() throws Exception {
> executeCommand("http:proxy-add /test1 http://karaf.apache.org");
> executeCommand("http:proxy-add /test2 http://karaf.apache.org"); // not added
> String output = executeCommand("http:proxy-balancing-list");
> System.out.println(output);
> assertContains("random", output);
> assertContains("round-robin", output);
> output = executeCommand("http:proxy-list");
> System.out.println(output);
> assertContains("/test1", output);
> assertContains("/test2", output); // fails
> }
> {code}
>  



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