At times while debugging we need to find the servlet class name which handles a particular request. In a JEE based Web Application one can find out that by looking at the web.xml. However in OSGi it becomes bit tricky to find out the information easily. Some information is provided by the "Http Whiteboard" WebConsole Plugin [1]. However it does not provide information about servlets which are registered directly through org.osgi.service.http.HttpService.registerServlet(String, Servlet, Dictionary, HttpContext) method or servlets which are managed by other Fwk like Sling
In case of Felix HttpService implementation this information is present with o.a.f.http.base.internal.handler.HandlerRegistry [2] so I had to use Sling Script Console [3] with script [7] to extract that information. It would useful if all this information is exposed as part of some WebConsole plugin similar to "Http Whiteboard" plugin. I am not sure what would be the best way to achieve that but if we have a WebConsole plugin which exposes some sort of API to allow various sub systems to provide Servlet registration info then it can be used to provide all the required information at one place collected from various sources like 1. Http Whiteboard information 2. HttpService handlerRegistry (possibly a super set of #1) 3. SlingServletResolver [4] 4. Sling Filter Printer [5] At minimum having access to HandlerRegistry state via current Http Whiteboard would also help. Information related to Sling can somewhat be extracted from Recent Requests plugin [6] Thoughts? Chetan Mehrotra [1] https://github.com/apache/felix/blob/trunk/http/whiteboard/src/main/java/org/apache/felix/http/whiteboard/internal/manager/HttpWhiteboardWebConsolePlugin.java [2] https://github.com/apache/felix/blob/trunk/http/base/src/main/java/org/apache/felix/http/base/internal/handler/HandlerRegistry.java [3] https://github.com/chetanmeh/c/wiki/Sling-Script-Console [4] https://github.com/apache/sling/blob/trunk/bundles/servlets/resolver/src/main/java/org/apache/sling/servlets/resolver/internal/SlingServletResolver.java [5] https://github.com/apache/sling/blob/trunk/bundles/engine/src/main/java/org/apache/sling/engine/impl/WebConsoleConfigPrinter.java [6] http://sling.apache.org/site/monitoring-requests.html [7] import org.osgi.service.http.HttpService import org.osgi.framework.FrameworkUtil import org.osgi.framework.Bundle def httpService = sling.getService(HttpService.class) httpService.handlerRegistry.aliasMap.each{alias,servlet -> Bundle bnd = FrameworkUtil.getBundle(servlet.class) println "$alias : ${servlet.class.name} ($bnd.symbolicName)" }
