Send an email via GEL using java method
Article ID: 232943
Updated On:
Products
Issue/Introduction
Is there an example on how to send an email via GEL script using java methods?
Resolution
Below sample script using java mail methods
<gel:script xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:core="jelly:core" xmlns:jemail="jelly:email"
xmlns:file="jelly:com.niku.union.gel.FileTagLibrary"
xmlns:gel="jelly:com.niku.union.gel.GELTagLibrary"
xmlns:soap="jelly:com.niku.union.gel.SOAPTagLibrary"
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:sql="jelly:sql" xmlns:util="jelly:util"
xmlns:xog="http://www.niku.com/xog" xmlns:bpm="jelly:com.niku.bpm.gel.BPMTagLibrary"
xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!-- Initializing variables -->
<core:set value="0" var="counter"/>
<gel:parameter default="[email protected]" var="fromEmailAddress"/>
<gel:parameter default="[email protected]" var="supportEmail"/>
<core:invokeStatic className="java.lang.System" method="getenv" var="NIKU_HOME">
<core:arg value="NIKU_HOME"/>
</core:invokeStatic>
<gel:parse file="${NIKU_HOME}/config/properties.xml" var="properties"/>
<gel:set asString="true" select="$properties//mailServer/@host" var="SMTPServerHost"/>
<gel:set asString="true" select="$properties/properties/webServer/@schedulerUrl" var="XOGURL"/>
<gel:set asString="true" var="SMTPServer" select="$properties//mailServer/@host"/>
<gel:log> SMTPServer : ${SMTPServer}</gel:log>
<!-- Set MailAgent -->
<core:invokeStatic className="java.lang.Class" method="forName" var="recipientType">
<core:arg type="java.lang.String" value="javax.mail.Message$RecipientType" />
</core:invokeStatic>
<core:set value="${recipientType.getField('TO')}" var="recipientTypeTO" />
<core:set value="${recipientTypeTO.TO}" var="recipientTypeTO" />
<core:set value="${recipientType.getField('CC')}" var="recipientTypeCC" />
<core:set value="${recipientTypeCC.CC}" var="recipientTypeCC" />
<core:set value="${recipientType.getField('BCC')}" var="recipientTypeBCC" />
<core:set value="${recipientTypeBCC.BCC}" var="recipientTypeBCC" />
<!-- Initiate a new java mail session -->
<core:new className="java.util.Properties" var="props" />
<core:set value="${props.put('mail.transport.protocol', 'smtp')}" var="void" />
<core:set value="${props.put('mail.smtp.host', SMTPServer)}" var="void" />
<core:set value="${props.put('mail.smtp.auth', 'true')}" var="void" />
<core:new className="com.niku.union.notification.MailAuthenticator" var="clarity_auth" />
<core:invokeStatic className="javax.mail.Session" method="getInstance" var="mailSession">
<core:arg type="java.util.Properties" value="${props}" />
<core:arg type="javax.mail.Authenticator" value="${clarity_auth}" />
</core:invokeStatic>
<!-- Establish a database connection. -->
<core:catch var="errorVar">
<gel:setDataSource dbId="Niku" var="clarityDS"/>
</core:catch>
<core:choose>
<core:when test="${errorVar != null}">
<core:set value="Database Connection Failed. Error Messge: ${errorVar}" var="errorText"/>
<gel:log level="WARNING">${errorText}</gel:log>
</core:when>
<core:otherwise>
<gel:log level="INFO">Connected to Database successfully</gel:log>
</core:otherwise>
</core:choose>
<gel:parse var="htmlMessage">
<message>
<![CDATA[
<html>
<table border="2">
<th>Name</th>
<th>Value</th>
<tr>
<td>Pi</td>
<td>3.1416</td>
</tr>
<tr>
<td>Light Speed</td>
<td>3*10^8</td>
</tr>
</table>
</font>
</html>
]]>
</message>
</gel:parse>
<gel:forEach select="$htmlMessage/message/node()" var="thisMessageNode">
<gel:set asString="true" select="$thisMessageNode" var="thisMessageNodeText" />
<core:set value="${thisMessageNodeText}" var="thisMessageText" />
</gel:forEach>
<gel:log level="INFO">Start Notification</gel:log>
<!-- Add sender -->
<core:new className="javax.mail.internet.InternetAddress" var="sender">
<core:arg type="java.lang.String" value="${fromEmailAddress}" />
</core:new>
<!-- Add recipients -->
<core:new className="javax.mail.internet.InternetAddress" var="internetAddress"/>
<core:set value="[email protected]" var="recipientsTO" />
<core:set value="[email protected]" var="recipientsCC" />
<gel:log level="INFO">${recipientsCC}</gel:log>
<core:set value="${supportEmail}" var="recipientsBCC" />
<!-- Add subject -->
<core:set value="Clarity Notification - TEST" var="subject" />
<!-- Add email body text and format -->
<core:new className="javax.mail.internet.MimeMultipart" var="multiPart" />
<core:new className="javax.mail.internet.MimeBodyPart" var="bodyPart" />
<core:set value="${bodyPart.setContent(thisMessageText, 'text/html')}" var="void" />
<core:set value="${multiPart.addBodyPart(bodyPart)}" var="void" />
<!-- Send email message -->
<core:new className="javax.mail.internet.MimeMessage" var="message">
<core:arg type="javax.mail.Session" value="${mailSession}" />
</core:new>
<core:set value="${mailSession.setDebug(debug)}" var="void" />
<core:set value="${message.setFrom(sender)}" var="void" />
<core:choose>
<core:when test="${recipientsTO.indexOf(',') > 0}">
<core:set value="${message.setRecipients(recipientTypeTO, internetAddress.parse(recipientsTO))}" var="void" />
</core:when>
<core:otherwise>
<core:new className="javax.mail.internet.InternetAddress" var="recipientsTO">
<core:arg type="java.lang.String" value="${recipientsTO}" />
</core:new>
<core:set value="${message.setRecipient(recipientTypeTO, recipientsTO)}" var="void" />
</core:otherwise>
</core:choose>
<core:set value="[email protected]" var="recipientsReplyTo" />
<core:set value="${message.setReplyTo(internetAddress.parse(recipientsReplyTo))}" var="void" />
<core:set value="${message.setSubject(subject)}" var="void" />
<core:set value="${message.setContent(multiPart)}" var="void" />
<core:set value="${mailSession.getTransport()}" var="transport" />
<core:set value="${transport.connect()}" var="void" />
<core:switch on="${transport.isConnected()}">
<core:case value="${true}">
<core:set value="${transport.send(message)}" var="void" />
<core:set value="${transport.close()}" var="void" />
</core:case>
<core:default>
<core:new className="java.lang.Exception" var="exception">
<gel:log level="ERROR">"Cannot connect to mail server: ${mailServer}"</gel:log>
</core:new>
</core:default>
</core:switch>
<gel:log level="INFO">End Notification</gel:log>
</gel:script>
Feedback
