An investigation into Bridging technologies was undertaken, with an aim to create a PHP-based Portlet. The technologies looked at included the PortletBridge-portlet, the PHP-JavaBridge, JSR-223 and the Apache Portals Bridges Project.
The PortletBridge-portlet is also known as a "Web Clipping Portlet". The PortletBridge-portlet proxies Web site content and renders the downstream content into a portlet.
The PHP-JavaBridge is as the name implies a PHP to Java bridge. The PHP-JavaBridge uses JSR-223 concepts while adding important aspects, such as enabling communications with already existing PHP server installations. The PHP-JavaBridge is described as an XML-based network protocol designed to communicate with native scripting engines, which have a Java or ECMA 335 virtual machine.
Currently, portal frameworks impose a number of constraints and limitations on the integration of legacy applications. This typically means that significant effort is needed to embed an application into a portal, and results in the need to fork the source tree of the application for the purposes of integration.
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