The Seahawk MOBY Data Display

How does Seahawk display MOBY Data?

Seahawk converts raw MOBY XML into HTML suitable for display in a javax.swing.JEditorPane. This conversion is done using an XSLT processor (discovered at run-time using the JAX-T API), and an XSLT stylesheet.

Sections

• What are the conventions used in the HTML file?
• How do I override the default stylesheet?

What are the conventions used in the HTML file?

The default stylesheet can be seen here.

The conventions used are:

• The variable sourceURL is available to the stylesheet, and contains the URL of the document being converted
• Seahawk will interpret any URL with a numeric XPointer (e.g. file:///foo.xml#/1/2/3/4/4) as a link to part of a MOBY XML document, and hence will automatically provide MOBY Service links when clicked, by parsing the data at that XPointer
• Hyperlinks of the form http://moby/namespace_value?id=id_value will be used by Seahawk to construct base MOBY Objects for linking out to MOBY Services
• All other hyperlinks will be launched into an external browser

How do I override the default stylesheet?

The default stylesheet loaded by Seahawk come from the resource "docs/moby2HTML.xsl". This resource is in the Seahawk JAR file, and it could be updated using the Java Development Kit (JDK) JAR utilities. An easier way to change the default mappings file is to set the system property seahawk.stylesheet. For example, on the command line:

java -Dseahawk.stylesheet=path/to/newstylesheet.xsl -jar seahawk.jar

System.setProperty(MobyContentGUI.RESOURCE_SYSTEM_PROPERTY, 
                  "path/to/newstylesheet.xsl");