org.apache.catalina.valves
Class ErrorReportValve

java.lang.Object
  extended byorg.apache.catalina.valves.ValveBase
      extended byorg.apache.catalina.valves.ErrorReportValve
All Implemented Interfaces:
Contained, Valve

public class ErrorReportValve
extends ValveBase

Implementation of a Valve that outputs HTML error pages.

This Valve should be attached at the Host level, although it will work if attached to a Context.

HTML code from the Cocoon 2 project.

Version:
$Revision: 1.16 $ $Date: 2004/08/26 21:43:51 $
Author:
Remy Maucherat, Craig R. McClanahan, Nicola Ken Barozzi Aisa, Stefano Mazzocchi

Field Summary
protected static StringManager sm
          The StringManager for this package.
 
Fields inherited from class org.apache.catalina.valves.ValveBase
container
 
Constructor Summary
ErrorReportValve()
           
 
Method Summary
 java.lang.String getInfo()
          Return descriptive information about this Valve implementation.
 void invoke(Request request, Response response, ValveContext context)
          Invoke the next Valve in the sequence.
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).
protected  void report(Request request, Response response, java.lang.Throwable throwable)
          Prints out an error report.
 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

ErrorReportValve

public ErrorReportValve()
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
Invoke the next Valve in the sequence. When the invoke returns, check the response state, and output an error report is necessary.

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.


report

protected void report(Request request,
                      Response response,
                      java.lang.Throwable throwable)
               throws java.io.IOException
Prints out an error report.

Parameters:
request - The request being processed
response - The response being generated
Throws:
java.io.IOException

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


Copyright 2000-2002 Apache Software Foundation. All Rights Reserved.