Activemq mail notification

Apache ActiveMQ is a popular open-source message broker that allows you to send and receive messages between applications. One of the features of ActiveMQ is the ability to send notifications via email. Here's a step-by-step guide on how to set up email notifications in ActiveMQ:

Prerequisites

• Apache ActiveMQ installed and running
• JavaMail API (JavaMail) installed and configured
• A mail server (e.g., Gmail, Outlook, etc.) configured to send and receive emails

Step 1: Configure JavaMail

Create a mail.properties file in the activemq/conf directory with the following content:

mail.smtp.host=smtp.gmail.com
mail.smtp.port=587
mail.smtp.auth=true
mail.smtp.starttls.enable=true
mail.smtp.starttls.required=true
mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
mail.smtp.socketFactory.fallback=false

Replace smtp.gmail.com with your mail server's hostname and 587 with the port number.

Step 2: Configure ActiveMQ

Create a activemq.xml file in the activemq/conf directory with the following content:

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:amq="http://activemq.apache.org/schema/core"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://activemq.apache.org/schema/core
       http://activemq.apache.org/schema/core/activemq-core.xsd">

    <!-- Mail Notification Plugin -->
    <bean id="mailNotificationPlugin" class="org.apache.activemq.plugin.MailNotificationPlugin">
        <property name="mailProperties" ref="mailProperties"/>
    </bean>

    <!-- Mail Properties -->
    <bean id="mailProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="location" value="file:conf/mail.properties"/>
    </bean>

    <!-- Notification Queue -->
    <bean id="notificationQueue" class="org.apache.activemq.command.ActiveMQQueue">
        <constructor-arg value="notification.queue"/>
    </bean>

    <!-- Notification Consumer -->
    <bean id="notificationConsumer" class="org.apache.activemq.command.Consumer">
        <constructor-arg ref="notificationQueue"/>
        <property name="messageListener" ref="mailNotificationPlugin"/>
    </bean>

</beans>

This configuration sets up a mail notification plugin that uses the JavaMail API to send emails. The plugin is configured to use the mail.properties file and sends notifications to the notification.queue queue.

Step 3: Start ActiveMQ

Start ActiveMQ by running the following command:

activemq start

Step 4: Send a message to the notification queue

Use the ActiveMQ console or a message producer (e.g., activemq-console) to send a message to the notification.queue queue.

Step 5: Receive the notification email

The mail notification plugin will send an email to the recipient specified in the mail.properties file.

Troubleshooting

• Check the ActiveMQ logs for any errors related to the mail notification plugin.
• Verify that the mail server is configured correctly and can send and receive emails.
• Check the mail.properties file for any typos or incorrect settings.

By following these steps, you should be able to set up email notifications in ActiveMQ.