ZXTM Java™ Extensions
Java™ Extensions to the TrafficScript™ language make the enormous body of proven, reusable Java class libraries available to the Application Delivery administrator.
TrafficScript is ZXTM's high-performance rules language for creating traffic management policies that inspect and manipulate traffic and control how if is managed by ZXTM. Java Extensions bring an almost limitless set of capabilities within the reach of TrafficScript.
For example:
- When authenticating network traffic, a TrafficScript rule could invoke a Java Extension to query a database to verify the authentication credentials
- A Java Extension could process traffic by appling a unique watermark for each user to images, pdf files and other content types to discourage redistribution
- Java Extensions can implement very complex application delivery logic - such as protocol translation (HTTP to SOAP, AJP or FTP) or aggregation of composite services into a single-sign-on portal
How does it work?
Java Extensions use a modified version of the familiar Java Servlet API. These extensions can make use of other Java class libraries to build very sophisticated and powerful application logic.
An application administrator can use a development environment like Eclipse to create and compile Java Extensions, and to monitor and debug them as they run within ZXTM.
Java Extensions are invoked by TrafficScript rules when they are required. They run in a sandboxed Java Virtual Machine, alongside the core ZXTM traffic management kernel, and can perform operations like communicating with external systems without affecting the performance or stability of ZXTM.
Java Extensions have full visibiity of the application traffic, and can inspect and modify data in any supported protocol. Extensions can also control how ZXTM manages individual requests, for example, instructing ZXTM to apply bandwidth limits, enable response compression or use content caching.
In the most complex Application Delivery cases, when TrafficScript does not provide the specific functionality you need, Java Extensions are the means to build and deploy the precise solution that is appropriate for your need.
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