SAP CBMA Alerts to OpsGenie

ComponentBasedAlert_to_AlertMessageOpsGenie.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:ns1="http://mmg.com/Alerting"
    version="1.0">
    <!-- This XSLT mapping converts an XML representation of an alert message from the 
         SAP Component-Based Alert Framework into the JSON format expected by the OpsGenie
         Alert API (https://www.opsgenie.com/docs/web-api/alert-api#createAlertRequest).
         Created by Sascha Wenninger (@sufw) and released under Creative Commons BY-SA. 
         Available at https://gist.github.com/sufw/bd4bb9b414a4c89b0623 -->
    
    <xsl:strip-space elements="*"/>
    <xsl:output method="text"/>
    
    <xsl:variable name="APIKey"><!-- INSERT your OpsGenie API key here. --></xsl:variable>
    
    
    <xsl:variable name="Flow">
        <xsl:if test="/ns1:AlertMessage/FromService">
            <xsl:value-of select="/ns1:AlertMessage/FromService"/>
        </xsl:if>
        <xsl:if test="/ns1:AlertMessage/Interface">
            <xsl:text> (</xsl:text>
            <xsl:value-of select="/ns1:AlertMessage/Interface"/>
            <xsl:text>)</xsl:text>
        </xsl:if>
        <xsl:if test="/ns1:AlertMessage/ToService">
            <xsl:text> --&gt; </xsl:text>
            <xsl:value-of select="/ns1:AlertMessage/ToService"/>
        </xsl:if>
    </xsl:variable>
    
    
    <xsl:template match="/ns1:AlertMessage">
        <xsl:text>{</xsl:text>
        
        <xsl:apply-templates/>
        
        <xsl:text>"apiKey":"</xsl:text>
        <xsl:value-of select="$APIKey"/>
        <xsl:text>",</xsl:text>
        <xsl:text>"source":"PO Alert Framework"</xsl:text>
        <xsl:text>}</xsl:text>
    </xsl:template>
    
    
    <xsl:template match="ErrText">
        <xsl:variable name="text" select="translate(string(),'&quot;','')"/>
        
        <!-- The 'title' of an Alert in OpsGenie is length-limited, so we need to truncate it. -->
        <xsl:variable name="maxLength">130</xsl:variable>
        <xsl:variable name="excessLength" select="string-length($text) &gt; ($maxLength - string-length($Flow) - 5)"/>
        

        <xsl:text>"message":"</xsl:text>
        
        <!-- the two xsl:text elements below are where the "-5" comes from -->
        <xsl:value-of select="substring($text,1,$maxLength - string-length($Flow) - 5)"/>
        <xsl:if test="$excessLength">
            <xsl:text>...</xsl:text>
        </xsl:if>
        <xsl:text>: </xsl:text>
        
        <xsl:value-of select="$Flow"/>
        <xsl:text>",</xsl:text>
        
        <xsl:text>"description":"Message ID: </xsl:text>
        <xsl:value-of select="../MsgId"/>
        <xsl:text>\n</xsl:text>
        <xsl:value-of select="$Flow"/>
        <xsl:text>\n</xsl:text>
        
        <xsl:if test="string-length($excessLength) &gt; 0">
            <xsl:text>Full Error:\n</xsl:text>
            <xsl:value-of select="$text"/>
        </xsl:if>
        
        <xsl:text>",</xsl:text>
    </xsl:template>
    
    
    <xsl:template match="Component">
        <xsl:text>"entity":"</xsl:text>
        <xsl:value-of select="translate(string(),'&quot;','')"/>
        <xsl:text>",</xsl:text>
    </xsl:template>
    
    
    <xsl:template match="MsgId">
        <xsl:if test="string-length() &gt; 0">
            <xsl:text>"alias":"</xsl:text>
            <xsl:value-of select="string()"/>
            <xsl:text>",</xsl:text>
        </xsl:if>
    </xsl:template>
    
    
    <xsl:template match="Timestamp">
        <xsl:text>"details":{"timestamp":"</xsl:text>
        <xsl:value-of select="string()"/>
        <xsl:text>"},</xsl:text>
    </xsl:template>

    
    <xsl:template match="*" priority="-10">
        <!-- mop up any elements not processed by a template, and do nothing with them. -->
    </xsl:template>
    
    
</xsl:stylesheet>