ErrorReportValve (Apache Tomcat 6.0.53 API Documentation)

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org.apache.catalina.valves
Class ErrorReportValve

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

All Implemented Interfaces:: javax.management.MBeanRegistration, Contained, Valve

public class ErrorReportValve
extends ValveBase
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.

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

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
`ErrorReportValve()`

Method Summary
`java.lang.String`	`getInfo()` Return descriptive information about this Valve implementation.
`protected java.lang.String`	`getPartialServletStackTrace(java.lang.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, java.lang.Throwable throwable)` Prints out an error report.

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, toString`

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)
            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
Throws:: java.io.IOException - if an input/output error occurs; javax.servlet.ServletException - if a servlet error occurs

report

protected void report(Request request,
                      Response response,
                      java.lang.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 java.lang.String getPartialServletStackTrace(java.lang.Throwable t)

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