com.softwareag.eda.nerv

Interface EventHelper

public interface EventHelper

Method Summary

Methods

Modifier and Type	Method and Description
void	checkEventType(java.lang.String eventType) Verifies the correctness of a given event type identifier
java.lang.String	extractBody(java.lang.String eventAsXMLString) Extracts the event body from an event instance in an XML format.
java.lang.String	extractEventType(java.lang.String eventContent) Extracts fully qualified event type identifier from an event instance in an XML format.

Method Detail

extractEventType

java.lang.String extractEventType(java.lang.String eventContent)
                                  throws NervException

Extracts fully qualified event type identifier from an event instance in an XML format. The fully qualified event type identifier is included into the event header <eda:Type> Example:

 <eda:Event xmlns:eda=\"http://namespaces.softwareag.com/EDA/Event\">
     <eda:Header>
         <eda:Type>{http://namespaces.softwareag.com/EDA/WebM/Sample/Pulse}BoothDemo</eda:Type>
         ...
     </eda:Header>
     <eda:Body>
         ...
     </eda:Body>
 </eda:Event>
 

Given the event above, this method will return: "{http://namespaces.softwareag.com/EDA/WebM/Sample/Pulse}BoothDemo"

Parameters:

eventContent - An XML representation of an event

Returns:

The value of the <eda:Type> header of a given event instance

Throws:

NervException

extractBody

java.lang.String extractBody(java.lang.String eventAsXMLString)
                             throws NervException

Extracts the event body from an event instance in an XML format. Example:

 <eda:Event xmlns:eda=\"http://namespaces.softwareag.com/EDA/Event\">
     <eda:Header>
         ...
     </eda:Header>
     <eda:Body>
         <p1:BoothDemo xmlns:p1=\"http://namespaces.softwareag.com/EDA/WebM/Sample/Pulse\">
             <p1:PulseCommon>
                 <p1:Producer>Event Generator</p1:Producer>
                 ...
             </p1:PulseCommon>
             ...
         </p1:BoothDemo>
     </eda:Body>
 </eda:Event>
 

Given the event above, this method will return:

 <p1:BoothDemo xmlns:p1=\"http://namespaces.softwareag.com/EDA/WebM/Sample/Pulse\">
     <p1:PulseCommon>
         <p1:Producer>Event Generator</p1:Producer>
         ...
     </p1:PulseCommon>
     ...
 </p1:BoothDemo>
 

Parameters:

eventAsXMLString - An XML representation of an event

Returns:

The body of a given event instance

Throws:

NervException

checkEventType

void checkEventType(java.lang.String eventType)
                    throws NervException

Verifies the correctness of a given event type identifier

Parameters:

eventType - An event type identifier to be checked

Throws:

NervException - Thrown if a given event type identifier is incorrect