A Content Type is part of the message content of a notification that may be sent using KEN. It can be as simple as a single message string, or something more complex, such as an event that might have a date associated with it, start and stop times, and other metadata you may want to associate with the notification.

KEN is distributed with two Content Types: Simple and Event.

Every notification sent through KEN must be associated with a registered Content Type. Registration of Content Types requires administrative access to the system and is described in the KEN Content Types section in the User Guide. The rest of this section describes the Content Type attributes that are required for registration.

A Content Type is represented as a NotificationContent business object and consists of several attributes, described below:

id - Unique identifier that KEN automatically creates when you add a Content Type

name - This is a unique string that identifies the content. For example, ItemOverdue might be the name used for a notification Content Type about an item checked out from the campus library.

description - This is a more verbose description of the Content Type. For example, "Library item overdue notices" might be the description for ItemOverdue.

namespace - This is the string used in the XSD schema and XML to provide validation of the content, for example, notification/ContentTypeItemOverdue. The XSD namespace is typically the name attribute concatenated to the notification/ContentType string. Note how it is used in the XSD and XSL examples below.

xsd - The XSD attribute contains the complete W3C XML Schema compliant code.

<?xml version="1.0" encoding="UTF-8"?>
<!-- This schema defines a generic event notification type in order for it to be accepted into the system. -->
<schema xmlns="http://www.w3.org/2001/XMLSchema"         
        xmlns:c="ns:notification/common"         
        xmlns:ce="ns:notification/ContentTypeItemOverdue"         
        targetNamespace="ns:notification/ContentTypeItemOverdue"         
        attributeFormDefault="unqualified"         
        elementFormDefault="qualified">  
    <annotation>    
        <documentation xml:lang="en">Item Overdue Schema</documentation>  
    </annotation>
    <import namespace="ns:notification/common" schemaLocation="resource:notification/notification-common" />
 
    <!-- The content element describes the content of the notification.  It contains a message (a simple String) and a message element -->  
    <element name="content">    
        <complexType>      
            <sequence>        
                <element name="message" type="c:LongStringType"/>        
                <element ref="ce:event"/>      
            </sequence>    
        </complexType>  
    </element>

    <!-- This is the itemoverdue element.  It describes an item overdue notice containing a summary, description, location, due date, and the amount of the fine levied -->  
    <element name="itemoverdue">    
        <complexType>      
            <sequence>        
                <element name="summary" type="c:NonEmptyShortStringType" />        
                <element name="description" type="c:NonEmptyShortStringType" />        
                <element name="location" type="c:NonEmptyShortStringType" />        
                <element name="dueDate" type="dateTime" />        
                <element name="fine" type="decimal" />      
            </sequence>    
        </complexType>  
    </element>
</schema>

xsl - The XSD attribute contains the complete XSL code that will be used to transform a notification in XML to html for rendering in an Action List.

<?xml version="1.0" encoding="UTF-8"?>
<!-- style sheet declaration: be very careful editing the following, the
 default namespace must be used otherwise elements will not match -->
<xsl:stylesheet
 
    version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:n="ns:notification/ContentTypeEvent"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="ns:notification/ContentTypeItemOverdue resource:notification/ContentTypeItemOverdue"
    exclude-result-prefixes="n xsi">

    

    <!-- output an html fragment -->
    <xsl:output method="html" indent="yes" />


    <!-- match everything -->
    <xsl:template match="/n:content" >
        <table class="bord-all">
            <xsl:apply-templates />
        </table>
    </xsl:template>


    <!--  match message element in the default namespace and render as strong -->
    <xsl:template match="n:message" >
        <caption>
            <strong><xsl:value-of select="." disable-output-escaping="yes"/></strong>
        </caption>
    </xsl:template>


    <!-- match on itemoverdue in the default namespace and display all children -->
    <xsl:template match="n:itemoverdue">
        <tr>
            <td class="thnormal"><strong>Summary: </strong></td>
            <td class="thnormal"><xsl:value-of select="n:summary" /></td>
        </tr>
        <tr>
            <td class="thnormal"><strong>Item Description: </strong></td>
            <td class="thnormal"><xsl:value-of select="n:description" /></td>
        </tr>
        <tr>
            <td class="thnormal"><strong>Library: </strong></td>
            <td class="thnormal"><xsl:value-of select="n:location" /></td>
        </tr>
        <tr>
            <td class="thnormal"><strong>Due Date: </strong></td>
            <td class="thnormal"><xsl:value-of select="n:startDateTime" /></td>
        </tr>
        <tr>
            <td class="thnormal"><strong>Fine: </strong></td>
            <td class="thnormal">$<xsl:value-of select="n:fine" /></td>
        </tr>
    </xsl:template>
</xsl:stylesheet>