Investigation of WSRP support in selected open‐source portal frameworks

Abstract

SUMMARYWSRP (Web Services for Remote Portlets) is a promising Web services specification used to standardize presentation-based access to remote Web portal content. In combination with the JSR-168 standard, portlet developers are freed of doing the hard work in publishing their portlets to a remote portal: ideally it is the duty of a portal framework to publish the portlets it manages. Code reusability can now be achieved with JSR-168 while 'deploy once' is achieved through WSRP. In this paper the WSRP support provided by selected open-source portal frameworks including the eXo platform, Liferay, StringBeans and uPortal are reported. WSRP4J, which is not a portal framework but a reference implementation of the WSRP 1.0 specification, is also discussed. Based on our test results, a WSRP consumer has been developed for Sakai, a collaboration and learning environment, based on the WSRP4J consumer, which enables Sakai to consume JSR-168 portlets.

Special Issue: Workshop on Grid Computing Portals (GCE 2005)

“…These are followed by papers addressing development in portal frameworks [24,7,22,21,29] and technologies [30,23], and application portals [28,33]. We conclude the issue with the review articles [25,26].…”

“…Technology presentations include portal frameworks and SOA/Web technologies [21][22][23][24][25][26], collaborative environments 1565 and workflows [27,7,28,29], grid usage [30], and sensors and instrumentation [31]. Application papers include a diverse representation of the types of applications that are being developed for portals, including water resource management [32], coastal observation [19], computational material science [33], collaborative informatics [28], and geology [34].…”

“…Application papers include a diverse representation of the types of applications that are being developed for portals, including water resource management [32], coastal observation [19], computational material science [33], collaborative informatics [28], and geology [34]. Two of the papers could be categorized as review or overview papers comparing portal frameworks [26] and Web services for remote portals (WSRP) [25].…”

Integration of Existing Grid Tools in Sakai VRE

“…Only when a user request is transferred correctly, will a correct response be produced. As reported in [21], many WSRP consumers could not handle such a redirection correctly which makes them currently unpractical.…”

Plug‐and‐play remote portlet publishing

“…In our previous work [12], we investigated the WSRP support in several open-source portal frameworks including eXo platform v1.0 (http://www.exoplatform.com), Liferay Enterprise/ Professional v3.6.1 (http://www.liferay.com), uPortal (http://www.uportal.org), StringBeans v3.0 (http://www.nabh.com/projects/sbportal) and WSRP4J (http://ws.apache.org/wsrp4j). Two standard JSR 168 compliant portlets were used for our WSRP support test: HelloWorld and LdapBrowser.…”