Package org.eclipse.jetty.server.handler

Class StatisticsHandler

  • All Implemented Interfaces:
    Handler, HandlerContainer, org.eclipse.jetty.util.component.Container, org.eclipse.jetty.util.component.Destroyable, org.eclipse.jetty.util.component.Dumpable, org.eclipse.jetty.util.component.Graceful, org.eclipse.jetty.util.component.LifeCycle
    @ManagedObject("Request Statistics Gathering")
public class StatisticsHandler
extends HandlerWrapper
implements org.eclipse.jetty.util.component.Graceful

    • Constructor Detail

      • StatisticsHandler

        public StatisticsHandler()

    • Method Detail

      • statsReset

        @ManagedOperation(value="resets statistics",
                  impact="ACTION")
public void statsReset()
        Resets the current request statistics.

      • handle

        public void handle​(java.lang.String path,
                   Request baseRequest,
                   javax.servlet.http.HttpServletRequest request,
                   javax.servlet.http.HttpServletResponse response)
            throws java.io.IOException,
                   javax.servlet.ServletException
        Description copied from interface: Handler
        Handle a request.
        Specified by:
        handle in interface Handler
        Overrides:
        handle in class HandlerWrapper
        Parameters:
        path - The target of the request - either a URI or a name.
        baseRequest - The original unwrapped request object.
        request - The request either as the Request object or a wrapper of that request. The HttpConnection.getCurrentConnection().getHttpChannel().getRequest() method can be used access the Request object if required.
        response - The response as the Response object or a wrapper of that request. The HttpConnection.getCurrentConnection().getHttpChannel().getResponse() method can be used access the Response object if required.
        Throws:
        java.io.IOException - if unable to handle the request or response processing
        javax.servlet.ServletException - if unable to handle the request or response due to underlying servlet issue

      • updateResponse

        protected void updateResponse​(Request request)

      • doStart

        protected void doStart()
                throws java.lang.Exception
        Overrides:
        doStart in class AbstractHandler
        Throws:
        java.lang.Exception

      • doStop

        protected void doStop()
               throws java.lang.Exception
        Overrides:
        doStop in class AbstractHandler
        Throws:
        java.lang.Exception

      • getRequests

        @ManagedAttribute("number of requests")
public int getRequests()
        Returns:
        the number of requests handled by this handler since statsReset() was last called, excluding active requests
        See Also:
        getAsyncDispatches()

      • getRequestsActive

        @ManagedAttribute("number of requests currently active")
public int getRequestsActive()
        Returns:
        the number of requests currently active. since statsReset() was last called.

      • getRequestsActiveMax

        @ManagedAttribute("maximum number of active requests")
public int getRequestsActiveMax()
        Returns:
        the maximum number of active requests since statsReset() was last called.

      • getRequestTimeMax

        @ManagedAttribute("maximum time spend handling requests (in ms)")
public long getRequestTimeMax()
        Returns:
        the maximum time (in milliseconds) of request handling since statsReset() was last called.

      • getRequestTimeTotal

        @ManagedAttribute("total time spend in all request handling (in ms)")
public long getRequestTimeTotal()
        Returns:
        the total time (in milliseconds) of requests handling since statsReset() was last called.

      • getRequestTimeMean

        @ManagedAttribute("mean time spent handling requests (in ms)")
public double getRequestTimeMean()
        Returns:
        the mean time (in milliseconds) of request handling since statsReset() was last called.
        See Also:
        getRequestTimeTotal(), getRequests()

      • getRequestTimeStdDev

        @ManagedAttribute("standard deviation for request handling (in ms)")
public double getRequestTimeStdDev()
        Returns:
        the standard deviation of time (in milliseconds) of request handling since statsReset() was last called.
        See Also:
        getRequestTimeTotal(), getRequests()

      • getDispatched

        @ManagedAttribute("number of dispatches")
public int getDispatched()
        Returns:
        the number of dispatches seen by this handler since statsReset() was last called, excluding active dispatches

      • getDispatchedActive

        @ManagedAttribute("number of dispatches currently active")
public int getDispatchedActive()
        Returns:
        the number of dispatches currently in this handler since statsReset() was last called, including resumed requests

      • getDispatchedActiveMax

        @ManagedAttribute("maximum number of active dispatches being handled")
public int getDispatchedActiveMax()
        Returns:
        the max number of dispatches currently in this handler since statsReset() was last called, including resumed requests

      • getDispatchedTimeMax

        @ManagedAttribute("maximum time spend in dispatch handling")
public long getDispatchedTimeMax()
        Returns:
        the maximum time (in milliseconds) of request dispatch since statsReset() was last called.

      • getDispatchedTimeTotal

        @ManagedAttribute("total time spent in dispatch handling (in ms)")
public long getDispatchedTimeTotal()
        Returns:
        the total time (in milliseconds) of requests handling since statsReset() was last called.

      • getDispatchedTimeMean

        @ManagedAttribute("mean time spent in dispatch handling (in ms)")
public double getDispatchedTimeMean()
        Returns:
        the mean time (in milliseconds) of request handling since statsReset() was last called.
        See Also:
        getRequestTimeTotal(), getRequests()

      • getDispatchedTimeStdDev

        @ManagedAttribute("standard deviation for dispatch handling (in ms)")
public double getDispatchedTimeStdDev()
        Returns:
        the standard deviation of time (in milliseconds) of request handling since statsReset() was last called.
        See Also:
        getRequestTimeTotal(), getRequests()

      • getAsyncRequests

        @ManagedAttribute("total number of async requests")
public int getAsyncRequests()
        Returns:
        the number of requests handled by this handler since statsReset() was last called, including resumed requests
        See Also:
        getAsyncDispatches()

      • getAsyncRequestsWaiting

        @ManagedAttribute("currently waiting async requests")
public int getAsyncRequestsWaiting()
        Returns:
        the number of requests currently suspended. since statsReset() was last called.

      • getAsyncRequestsWaitingMax

        @ManagedAttribute("maximum number of waiting async requests")
public int getAsyncRequestsWaitingMax()
        Returns:
        the maximum number of current suspended requests since statsReset() was last called.

      • getAsyncDispatches

        @ManagedAttribute("number of requested that have been asynchronously dispatched")
public int getAsyncDispatches()
        Returns:
        the number of requests that have been asynchronously dispatched

      • getExpires

        @ManagedAttribute("number of async requests requests that have expired")
public int getExpires()
        Returns:
        the number of requests that expired while suspended.
        See Also:
        getAsyncDispatches()

      • getResponses1xx

        @ManagedAttribute("number of requests with 1xx response status")
public int getResponses1xx()
        Returns:
        the number of responses with a 1xx status returned by this context since statsReset() was last called.

      • getResponses2xx

        @ManagedAttribute("number of requests with 2xx response status")
public int getResponses2xx()
        Returns:
        the number of responses with a 2xx status returned by this context since statsReset() was last called.

      • getResponses3xx

        @ManagedAttribute("number of requests with 3xx response status")
public int getResponses3xx()
        Returns:
        the number of responses with a 3xx status returned by this context since statsReset() was last called.

      • getResponses4xx

        @ManagedAttribute("number of requests with 4xx response status")
public int getResponses4xx()
        Returns:
        the number of responses with a 4xx status returned by this context since statsReset() was last called.

      • getResponses5xx

        @ManagedAttribute("number of requests with 5xx response status")
public int getResponses5xx()
        Returns:
        the number of responses with a 5xx status returned by this context since statsReset() was last called.

      • getStatsOnMs

        @ManagedAttribute("time in milliseconds stats have been collected for")
public long getStatsOnMs()
        Returns:
        the milliseconds since the statistics were started with statsReset().

      • getResponsesBytesTotal

        @ManagedAttribute("total number of bytes across all responses")
public long getResponsesBytesTotal()
        Returns:
        the total bytes of content sent in responses

      • toStatsHTML

        public java.lang.String toStatsHTML()

      • shutdown

        public java.util.concurrent.Future<java.lang.Void> shutdown()
        Specified by:
        shutdown in interface org.eclipse.jetty.util.component.Graceful

      • isShutdown

        public boolean isShutdown()
        Specified by:
        isShutdown in interface org.eclipse.jetty.util.component.Graceful

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class org.eclipse.jetty.util.component.AbstractLifeCycle