org.apache.catalina.valves
Class ErrorReportValve

java.lang.Object
  org.apache.catalina.util.LifecycleBase
      org.apache.catalina.util.LifecycleMBeanBase
          org.apache.catalina.valves.ValveBase
              org.apache.catalina.valves.ErrorReportValve

All Implemented Interfaces:

MBeanRegistration, Contained, Lifecycle, 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:

$Id: ErrorReportValve.java 1445329 2013-02-12 20:08:43Z markt $

Author:

Remy Maucherat, Craig R. McClanahan, Nicola Ken Barozzi Aisa, Stefano Mazzocchi, Yoav Shapira

Field Summary

Fields inherited from class org.apache.catalina.valves.ValveBase

asyncSupported, container, containerLog, next, sm

Fields inherited from class org.apache.catalina.util.LifecycleMBeanBase

mserver

Fields inherited from interface org.apache.catalina.Lifecycle

AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT

Constructor Summary

ErrorReportValve()

Method Summary

String	getInfo() Return descriptive information about this Valve implementation.
protected String	getPartialServletStackTrace(Throwable t) Print out a partial servlet stack trace (truncating at the last occurrence of javax.servlet.).
void	invoke(Request request, Response response) Invoke the next Valve in the sequence.
protected void	report(Request request, Response response, Throwable throwable) Prints out an error report.

Methods inherited from class org.apache.catalina.valves.ValveBase

backgroundProcess, event, getContainer, getDomainInternal, getNext, getObjectNameKeyProperties, initInternal, isAsyncSupported, setAsyncSupported, setContainer, setNext, startInternal, stopInternal, toString

Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase

destroyInternal, getDomain, getObjectName, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister

Methods inherited from class org.apache.catalina.util.LifecycleBase

addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, init, removeLifecycleListener, setState, setState, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

ErrorReportValve

public ErrorReportValve()

Method Detail

getInfo

public 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 IOException,
                   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

Throws:

IOException - if an input/output error occurs

ServletException - if a servlet error occurs

report

protected void report(Request request,
                      Response response,
                      Throwable throwable)

Prints out an error report.

Parameters:

request - The request being processed

response - The response being generated

throwable - The exception that occurred (which possibly wraps a root cause exception

getPartialServletStackTrace

protected String getPartialServletStackTrace(Throwable t)

Print out a partial servlet stack trace (truncating at the last occurrence of javax.servlet.).