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| Paper: |
Search and Retrieval of the AXAF Data Archive on the Web using Java |
| Volume: |
145, Astronomical Data Analysis Software and Systems VII |
| Page: |
408 |
| Authors: |
Chary, S.; Zografou, P. |
| Abstract: |
An important component of the AXAF Data Archive is the interface through the WWW. Internet applications are moving beyond delivering static content to more complex dynamic content and transaction processing. While HTML and CGI based interfaces have been possible for some time, it was not until the advent of JDBC (Java$^1$ Database a uniform and powerful interface to the different types of servers in the archive, with secure access to proprietary data, could become a reality.\\ This paper presents a multi-tier architecture which integrates the data servers, Web server and a HTTP/JDBC gateway and enables data on any of the data servers in the AXAF archive to be available to clients using a Web browser. This Web-based solution to data browsing is currently available for the contents of the AXAF observing catalog and other catalogs in the archive. A Java API for other database applications to access the data is presented. Performance issues and security limitations and workarounds are discussed. |
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