Web Services for Remote Portlets
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Web Services for Remote Portlets (WSRP) is a standard for Web portals to access and display portlets that are hosted on a remote server. The WSRP specification defines a web-service interface for interacting with interactive presentation-oriented web services. It has been produced through the joint efforts of the Web Services for Interactive Applications (WSIA) and Web Services for Remote Portals (WSRP) OASIS Technical Committees.
Scenarios that motivate WSRP/WSIA functionality include:
- portal servers providing portlets as presentation-oriented web services that can be used by aggregation engines;
- portal servers consuming presentation-oriented web services provided by portal or non-portal content providers and integrating them into a portal framework.
Contrary to first impressions, JSR 168 and WSRP are not competing technologies as they address different aspects of portlet functionality. In the simplest terms, JSR-168 is a technology specific (Java) Portlet API designed to enable interoperability between Java portlets and Java portlet containers. These portlets are "local" to the container in which they are managed. WSRP is a technology agnostic protocol designed to remote Portlets in a standard manner. These two are not orthogonal, but rather parallel. WSRP does not make any statements as to how the protocol should be implemented. These two specifications can be (and frequently are) used together with JSR 168 defining a portlet and WSRP remoting that Portlet to remote containers/consumers.
See also
- Web Services
- JSR 168 (Portlet definition specification)