Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

How to write a custom dispatcher for WSO2 ESB

DZone's Guide to

How to write a custom dispatcher for WSO2 ESB

Free Resource

Learn how API management supports better integration in Achieving Enterprise Agility with Microservices and API Management, brought to you in partnership with 3scale

Create a maven project and add the following dependencies to the pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>Custom_Dispatcher</groupId>
    <artifactId>CustomDispatcher</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
        <dependency>
            <groupId>org.apache.synapse</groupId>
            <artifactId>synapse-core</artifactId>
            <version>2.1.0-wso2v5</version>
        </dependency>
        <dependency>
            <groupId>org.apache.synapse</groupId>
            <artifactId>synapse-extensions</artifactId>
            <version>2.1.0-wso2v5</version>
        </dependency>
    </dependencies>
</project>
The new dispatcher will be 'CustomDispatcher'.

Write your own dispatcher (Get an idea about the CustomURIBasedDispatcher.java )
https://svn.wso2.com/wso2/custom/projects/projects/carbon/3.2.3/trunk/dependencies/synapse/2.1.0-wso2v5/modules/core/src/main/java/org/apache/synapse/core/axis2/CustomURIBasedDispatcher.java

Copy it to [WSO2_ESB_Installation]/repository/components/lib and restart ESB.

Include the following in the axis2.xml. It should be inserted into the dispatch phase of the In-Flow of the ESB. It should be the first handler in the Dispatch phase.
<handler name="CustomDispatcher"
 class="com.wso2.Dispatcher.CustomDispatcher"/>

Unleash the power of your APIs with future-proof API management - Create your account and start your free trial today, brought to you in partnership with 3scale.

Topics:

Published at DZone with permission of Achala Chathuranga Aponso, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

THE DZONE NEWSLETTER

Dev Resources & Solutions Straight to Your Inbox

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.

X

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}