Output Email Event Adapter

Output email event adapter helps publishing email notifications via a configured email account. It uses Axis2 mail transport when sending mails from the WSO2 product.

Adding an email account

Before the configuration starts, edit the email address, username, password, and other relevant properties of the <transportSender> element in <PRODUCT_HOME>/repository/conf/axis2/axis2_client.xml file to add the email account . For example,

<axisconfig name="AxisJava2.0">
   ... 
   <transportSender name="mailto"
                     class="org.apache.axis2.transport.mail.MailTransportSender">
        <parameter name="mail.smtp.from">email-address</parameter>
        <parameter name="mail.smtp.user">user-name</parameter>
        <parameter name="mail.smtp.password">password</parameter>
        <parameter name="mail.smtp.host">smtp.gmail.com</parameter>

        <parameter name="mail.smtp.port">587</parameter>
        <parameter name="mail.smtp.starttls.enable">true</parameter>
        <parameter name="mail.smtp.auth">true</parameter>
    </transportSender>
    ...
    ...
</axisconfig>

Configuring output email event adapter

You can configure the email output event adapter using the management console or using a configuration file.

Configure using the management console

Follow the instructions below to configure output email event adapter using the management console. This deploys the event adapter in <PRODUCT_HOME>/repository/deployment/server/outputeventadaptors/ directory.

Log in to product's management console, and Click Configure.
Click Output Event Adaptors in the Event Processor Configs menu, and then click Add Output Event Adaptor.
Enter outputEmailAdaptor for Event Adaptor Name, and select email for Event Adaptor Type as shown below.
Click Add Event Adaptor.

Configure using a configuration file

Follow the instructions below to configure output email event adapter using a configuration file.

Create an XML file with the following output email event adapter configurations. Output event adapter implementation must start with <outputEventAdaptor> as the root element.

<outputEventAdaptor name="outputEmailAdaptor" statistics="disable" trace="disable" type="email" xmlns="http://wso2.org/carbon/eventadaptormanager">
  <property name="email.subject.default">Message From CEP</property>
</outputEventAdaptor>

Add the XML file to the <PRODUCT_HOME>/repository/deployment/server/outputeventadaptors/ directory. Since hot deployment is supported in the product, you can simply add/remove output event adapter configuration files to deploy/undeploy output event adapters to/from the server.

After an adapter is successfully added, it gets added to the list of adapters displayed under Event Processor Configs in the Configure menu of the product's management console. Click Edit to change its configuration and redeploy it. This opens an XML-based editor allowing you to edit the event adapter configurations from the UI. Do your modifications and click Update . You can also delete it, enable/disable statistics or enable/disable tracing on it using the provided options in the UI.

Configuring output email event adapter message properties

The configured output event adapters are used in event formatters. With output event adapter message properties event formatters are able to extract data from event streams and format the output events. Message properties specific to output event adapters of the email type can be configured as follows.

Log into the CEP Management Console. For detailed instructions, see Running the Product.
In the Main tab, click Event Streams to open the Available Event Streams page.
Click the Outflows link of the event stream to which the relevant input event adapter is connected. As a result, Event In-Flows (<Output_Event_Adapter_Name>) opens.

Click on the relevant event formatter name to open the Event Formatter Details page.
output email event adapter message properties
The message properties of a email output event adapter are described below. Change the property values as required.

Property	Description
Subject	Subject of the generated emails
Email Address	Address of the email recipient client. Add multiple recipients separated by commas.
Output Event Type	The outgoing event type to be mapped. The output email event adapter supports XML, JSON, and text mappings.