org.eclipse.jetty.server.handler

## Class StatisticsHandler

- java.lang.Object
- - org.eclipse.jetty.util.component.AbstractLifeCycle
  - - org.eclipse.jetty.util.component.AggregateLifeCycle
    - - org.eclipse.jetty.server.handler.AbstractHandler
      - - org.eclipse.jetty.server.handler.AbstractHandlerContainer
        - - org.eclipse.jetty.server.handler.HandlerWrapper
          - - org.eclipse.jetty.server.handler.StatisticsHandler

- All Implemented Interfaces:
    Handler, HandlerContainer, Destroyable, Dumpable, LifeCycle

      public class StatisticsHandler
      extends HandlerWrapper

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

      `AbstractLifeCycle.AbstractLifeCycleListener`

    - ### Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.LifeCycle

      `LifeCycle.Listener`

  - ### Field Summary

    - ### Fields inherited from class org.eclipse.jetty.server.handler.HandlerWrapper

      `_handler`

    - ### Fields inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

      `_listeners, FAILED, RUNNING, STARTED, STARTING, STOPPED, STOPPING`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `StatisticsHandler()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected void` | `doStart()` Start the managed lifecycle beans in the order they were added.
    `int` | `getDispatched()`
    `int` | `getDispatchedActive()`
    `int` | `getDispatchedActiveMax()`
    `long` | `getDispatchedTimeMax()`
    `double` | `getDispatchedTimeMean()`
    `double` | `getDispatchedTimeStdDev()`
    `long` | `getDispatchedTimeTotal()`
    `int` | `getExpires()`
    `int` | `getRequests()`
    `int` | `getRequestsActive()`
    `int` | `getRequestsActiveMax()`
    `long` | `getRequestTimeMax()`
    `double` | `getRequestTimeMean()`
    `double` | `getRequestTimeStdDev()`
    `long` | `getRequestTimeTotal()`
    `int` | `getResponses1xx()`
    `int` | `getResponses2xx()`
    `int` | `getResponses3xx()`
    `int` | `getResponses4xx()`
    `int` | `getResponses5xx()`
    `long` | `getResponsesBytesTotal()`
    `int` | `getResumes()`
    `long` | `getStatsOnMs()`
    `int` | `getSuspends()`
    `int` | `getSuspendsActive()`
    `int` | `getSuspendsActiveMax()`
    `void` | `handle(String path, Request request, javax.servlet.http.HttpServletRequest httpRequest, javax.servlet.http.HttpServletResponse httpResponse)` Handle a request.
    `void` | `statsReset()` Resets the current request statistics.
    `String` | `toStatsHTML()`

    - ### Methods inherited from class org.eclipse.jetty.server.handler.HandlerWrapper

      `destroy, doStop, expandChildren, getHandler, getHandlers, getNestedHandlerByClass, setHandler, setServer`

    - ### Methods inherited from class org.eclipse.jetty.server.handler.AbstractHandlerContainer

      `dump, expandHandler, findContainerOf, getChildHandlerByClass, getChildHandlers, getChildHandlersByClass`

    - ### Methods inherited from class org.eclipse.jetty.server.handler.AbstractHandler

      `dumpThis, getServer`

    - ### Methods inherited from class org.eclipse.jetty.util.component.AggregateLifeCycle

      `addBean, addBean, contains, dump, dump, dump, dump, dumpObject, dumpStdErr, getBean, getBeans, getBeans, isManaged, manage, removeBean, removeBeans, unmanage`

    - ### Methods inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

      `addLifeCycleListener, getState, getState, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, start, stop`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

    - ### Methods inherited from interface org.eclipse.jetty.util.component.LifeCycle

      `addLifeCycleListener, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, start, stop`

- - ### Constructor Detail

    - #### StatisticsHandler

          public StatisticsHandler()

  - ### Method Detail

    - #### statsReset

          public void statsReset()

      Resets the current request statistics.

    - #### handle

          public void handle(String path,
                    Request request,
                    javax.servlet.http.HttpServletRequest httpRequest,
                    javax.servlet.http.HttpServletResponse httpResponse)
                      throws 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.
        `request` - The original unwrapped request object.
        `httpRequest` - The request either as the `Request` object or a wrapper of that request. The `AbstractHttpConnection.getCurrentConnection()` method can be used access the Request object if required.
        `httpResponse` - The response as the `Response` object or a wrapper of that request. The `AbstractHttpConnection.getCurrentConnection()` method can be used access the Response object if required.
      Throws:
        `IOException`
        `javax.servlet.ServletException`

    - #### doStart

          protected void doStart()
                          throws Exception

      Description copied from class: `AggregateLifeCycle`
      Start the managed lifecycle beans in the order they were added.
      Overrides:
        `doStart` in class `HandlerWrapper`
      Throws:
        `Exception`
      See Also:
        `AbstractLifeCycle.doStart()`

    - #### getRequests

          public int getRequests()

      Returns:
        the number of requests handled by this handler since `statsReset()` was last called, excluding active requests
      See Also:
        `getResumes()`

    - #### getRequestsActive

          public int getRequestsActive()

      Returns:
        the number of requests currently active. since `statsReset()` was last called.

    - #### getRequestsActiveMax

          public int getRequestsActiveMax()

      Returns:
        the maximum number of active requests since `statsReset()` was last called.

    - #### getRequestTimeMax

          public long getRequestTimeMax()

      Returns:
        the maximum time (in milliseconds) of request handling since `statsReset()` was last called.

    - #### getRequestTimeTotal

          public long getRequestTimeTotal()

      Returns:
        the total time (in milliseconds) of requests handling since `statsReset()` was last called.

    - #### getRequestTimeMean

          public double getRequestTimeMean()

      Returns:
        the mean time (in milliseconds) of request handling since `statsReset()` was last called.
      See Also:
        `getRequestTimeTotal()`, `getRequests()`

    - #### getRequestTimeStdDev

          public double getRequestTimeStdDev()

      Returns:
        the standard deviation of time (in milliseconds) of request handling since `statsReset()` was last called.
      See Also:
        `getRequestTimeTotal()`, `getRequests()`

    - #### getDispatched

          public int getDispatched()

      Returns:
        the number of dispatches seen by this handler since `statsReset()` was last called, excluding active dispatches

    - #### getDispatchedActive

          public int getDispatchedActive()

      Returns:
        the number of dispatches currently in this handler since `statsReset()` was last called, including resumed requests

    - #### getDispatchedActiveMax

          public int getDispatchedActiveMax()

      Returns:
        the max number of dispatches currently in this handler since `statsReset()` was last called, including resumed requests

    - #### getDispatchedTimeMax

          public long getDispatchedTimeMax()

      Returns:
        the maximum time (in milliseconds) of request dispatch since `statsReset()` was last called.

    - #### getDispatchedTimeTotal

          public long getDispatchedTimeTotal()

      Returns:
        the total time (in milliseconds) of requests handling since `statsReset()` was last called.

    - #### getDispatchedTimeMean

          public double getDispatchedTimeMean()

      Returns:
        the mean time (in milliseconds) of request handling since `statsReset()` was last called.
      See Also:
        `getRequestTimeTotal()`, `getRequests()`

    - #### getDispatchedTimeStdDev

          public double getDispatchedTimeStdDev()

      Returns:
        the standard deviation of time (in milliseconds) of request handling since `statsReset()` was last called.
      See Also:
        `getRequestTimeTotal()`, `getRequests()`

    - #### getSuspends

          public int getSuspends()

      Returns:
        the number of requests handled by this handler since `statsReset()` was last called, including resumed requests
      See Also:
        `getResumes()`

    - #### getSuspendsActive

          public int getSuspendsActive()

      Returns:
        the number of requests currently suspended. since `statsReset()` was last called.

    - #### getSuspendsActiveMax

          public int getSuspendsActiveMax()

      Returns:
        the maximum number of current suspended requests since `statsReset()` was last called.

    - #### getResumes

          public int getResumes()

      Returns:
        the number of requests that have been resumed
      See Also:
        `getExpires()`

    - #### getExpires

          public int getExpires()

      Returns:
        the number of requests that expired while suspended.
      See Also:
        `getResumes()`

    - #### getResponses1xx

          public int getResponses1xx()

      Returns:
        the number of responses with a 1xx status returned by this context since `statsReset()` was last called.

    - #### getResponses2xx

          public int getResponses2xx()

      Returns:
        the number of responses with a 2xx status returned by this context since `statsReset()` was last called.

    - #### getResponses3xx

          public int getResponses3xx()

      Returns:
        the number of responses with a 3xx status returned by this context since `statsReset()` was last called.

    - #### getResponses4xx

          public int getResponses4xx()

      Returns:
        the number of responses with a 4xx status returned by this context since `statsReset()` was last called.

    - #### getResponses5xx

          public int getResponses5xx()

      Returns:
        the number of responses with a 5xx status returned by this context since `statsReset()` was last called.

    - #### getStatsOnMs

          public long getStatsOnMs()

      Returns:
        the milliseconds since the statistics were started with `statsReset()`.

    - #### getResponsesBytesTotal

          public long getResponsesBytesTotal()

      Returns:
        the total bytes of content sent in responses

    - #### toStatsHTML

          public String toStatsHTML()

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