Cisco Cisco Unified Customer Voice Portal 10.5(1) Developer's Guide

C

HAPTER 

12:

 

O

N 

E

RROR 

N

OTIFICATION

 

 

C

ISCO 

CVP V

OICE

XML 3.1

 

 

The error notification process can only be implemented using Java because when an error occurs, 
one desires the most reliable method for reporting that error. There is no guarantee an HTTP 
request to a URI could even be generated, a response received and the XML parsed without 
incurring another error. 

The on error notification class is built in Java by implementing the class 

GlobalErrorInterface

 found in the 

com.audium.server.proxy

 package. It contains a single 

method named 

doError

 that acts as the execution method for the class. The method receives 

nine arguments containing information on the status of the application and CVP VoiceXML 
Server at the time the error occurred. No API classes are passed to this method because accessing 
them may cause additional errors due to their complexity. Any of the arguments may be 

null

 if 

the data cannot be determined or the error is such that it is not related to a specific application.  

The arguments are: the Server session ID (as a 

String

), the name of the application (as a 

String

), the ANI (as a 

String

), the DNIS (as a 

String

), the IIDIGITS (as a 

String

), the UUI 

(as a 

String

), an 

ArrayList

 of 

String

s listing the elements visited in the call up to the time the 

error occurred, an 

ArrayList

 of the 

String

s listing the exit states for each of the elements, and 

a 

HashMap

 containing the session data created up to the time the error occurred (the key of the 

HashMap

 is the name of the session data, and the value is the session data value). 

The on error notification class must be deployed in the 

common

 directory of the Server since 

classes placed there are shared across applications.  

To configure the Server to use this class if an error occurs, a file named 

global_config.xml

 

found in the 

conf

 directory of  the Server must be used. This XML file contains a tag named 

<error_class>

 that should encapsulate the full Java name of this class (package name 

included). The changes will take effect only the next time the Java application server on which 
the Server is installed is restarted. 

 

 

Copyright 2001 - 2005 Audium Corporation.  All Rights Reserved. 10/05

 

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