If OGSA-DAI is deployed onto Tomcat then it supports a data source servlet. This allows the data exposed by an OGSA-DAI data source to be exposed via a servlet and so accessed by any HTTP client. Examples of the utility of the servlet are described in Chapter 91, Writing effective clients - using the data source servlet for delivery. This page outlines information from a server administrator's perspective.
The default name of the data source retrieval servlet is
DataSourceRetrievalServlet. The URL
to access the servlet is defined, by default, to be this appended to
the prefix of all services on the OGSA-DAI server.
The servlet name and path, i.e.
is defined in a
web.xml file in Tomcat.
You can change the name of the servlet by changing the value in the
url-pattern field. For example,
url-pattern value to be
would mean that the connection URL would be: