Mechanism for improving accessibility of JMX monitoring information in web content
View Patent ↗System, method and computer program product for monitoring the status of components in a data processing system that improves the accessibility of JMX monitoring information in web content. The system includes a mechanism for acquiring a text representation of component status for display as ALT and TITLE content associated with each status image. Because the component status is displayed in a manner that is indistinguishable from ALT/TITLE text that has already been statically included in an image attribute, user experience is improved for users with and without accessibility needs.
1. A method for monitoring the status of a plurality of components in a data processing system, comprising:
requesting, by a user, a web page that includes a status for said plurality of components;
responsive to said request, calling a panel servlet;
dynamically generating, by said panel servlet, an HTML file that will be used to display said status for said plurality of components;
including a plurality of status servlets, each one of said plurality of said status servlets associated with one of said plurality of components;
for each one of said plurality of components:
including, in said panel servlet, an image tag for one of said plurality of components, said image tag pointing to one of said plurality of status servlets that is associated with said one of said plurality of components;
including, in said image tag for said one of said plurality of components, information that is needed in order to perform a Java Management Extensions (JMX) query of said one of said plurality of components;
placing a status request in said one of said plurality of status servlets;
using, by said one of said plurality of status servlets, information that is included in said status request to generate said JMX query of said one of said plurality of components;
receiving, by said one of said plurality of status servlets, a status value for said one of said plurality of components in response to said JMX query;
sending, by said one of said plurality of status servlets to said web browser, a displayable status image that corresponds to said status value for said one of said plurality of components;
displaying, by said web browser, said displayable status image;
detecting a movement of a mouse over a particular displayable status image for a particular one of said plurality of components, said movement requesting additional information about a status of said particular one of said plurality of components;
ALT/TITLE text in said particular displayable status image statically set to default ALT/TITLE text;
attempting to retrieve, by a particular one of said plurality of status servlets that is associated with said particular one of said plurality of components, a textual description of additional information about said status of said particular one of said plurality of components;
responsive to said attempt to retrieve being successful, setting said ALT/TITLE text to said textual description; and
responsive to said attempt to retrieve being unsuccessful, said ALT/TITLE text remaining set to said default ALT/TITLE.