RequestDumperValve (Apache Tomcat 6.0.53 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:
  javax.management.MBeanRegistration, 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.

WARNING: Using this valve has side-effects. The output from this valve includes any parameters associated with the request. Therefore, the InputStream is consumed for requests made with the method POST and content-type application/x-www-form-urlencoded.

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

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, containerLog, controller, domain, mserver, next, oname`

Constructor Summary
`RequestDumperValve()`

Method Summary
`java.lang.String` | `getInfo()` Return descriptive information about this Valve implementation.
`void` | `invoke(Request request, Response response)` Log the interesting request parameters, invoke the next Valve in the sequence, and log the interesting response parameters.
`java.lang.String` | `toString()` Return a String rendering of this object.

Methods inherited from class org.apache.catalina.valves.ValveBase
`backgroundProcess, createObjectName, event, getContainer, getContainerName, getController, getDomain, getNext, getObjectName, getParentName, postDeregister, postRegister, preDeregister, preRegister, setContainer, setController, setNext, setObjectName`

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)
                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
  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.

  Overrides:
    `toString` in class `ValveBase`

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