RequestDumperValve (Catalina Internal API Documentation)
Keywords: org.apache.catalina.valves.RequestDumperValve class

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## org.apache.catalina.valves
Class RequestDumperValve

    java.lang.Object
      org.apache.catalina.valves.ValveBase
          org.apache.catalina.valves.RequestDumperValve

All Implemented Interfaces:
  Contained, Valve

public class RequestDumperValve
extends ValveBase

Implementation of a Valve that logs interesting contents from the specified Request (before processing) and the corresponding Response (after processing). It is especially useful in debugging problems related to headers and cookies.

This Valve may be attached to any Container, depending on the granularity of the logging you wish to perform.

Version:
  $Revision: 434283 $ $Date: 2006-08-23 21:57:51 -0400 (Wed, 23 Aug 2006) $
Author:
  Craig R. McClanahan

Field Summary
`protected static StringManager` | `sm` The StringManager for this package.

Fields inherited from class org.apache.catalina.valves.ValveBase
`container, debug`

Constructor Summary
`RequestDumperValve()`

Method Summary
`java.lang.String` | `getInfo()` Return descriptive information about this Valve implementation.
`void` | `invoke(Request request, Response response, ValveContext context)` Log the interesting request parameters, invoke the next Valve in the sequence, and log the interesting response parameters.
`protected void` | `log(java.lang.String message)` Log a message on the Logger associated with our Container (if any).
`protected void` | `log(java.lang.String message, java.lang.Throwable throwable)` Log a message on the Logger associated with our Container (if any).
`java.lang.String` | `toString()` Return a String rendering of this object.

Methods inherited from class org.apache.catalina.valves.ValveBase
`getContainer, getDebug, setContainer, setDebug`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### sm

    protected static StringManager sm

  The StringManager for this package.

Constructor Detail

### RequestDumperValve

    public RequestDumperValve()

Method Detail

### getInfo

    public java.lang.String getInfo()

  Return descriptive information about this Valve implementation.

  Specified by:
    `getInfo` in interface `Valve`
  Overrides:
    `getInfo` in class `ValveBase`

### invoke

    public void invoke(Request request,
                       Response response,
                       ValveContext context)
                throws java.io.IOException,
                       javax.servlet.ServletException

  Log the interesting request parameters, invoke the next Valve in the sequence, and log the interesting response parameters.

  Specified by:
    `invoke` in interface `Valve`
  Specified by:
    `invoke` in class `ValveBase`
  Parameters:
    `request` - The servlet request to be processed
    `response` - The servlet response to be created
    `context` - The valve context used to invoke the next valve in the current processing pipeline
  Throws:
    `java.io.IOException` - if an input/output error occurs
    `javax.servlet.ServletException` - if a servlet error occurs

### toString

    public java.lang.String toString()

  Return a String rendering of this object.

### log

    protected void log(java.lang.String message)

  Log a message on the Logger associated with our Container (if any).

  Parameters:
    `message` - Message to be logged

### log

    protected void log(java.lang.String message,
                       java.lang.Throwable throwable)

  Log a message on the Logger associated with our Container (if any).

  Parameters:
    `message` - Message to be logged
    `throwable` - Associated exception

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