The National Library of New Zealand's Metadata Extraction Tool automatically extracts preservation-related metadata from digital files, then output that metadata in XML formats. It can be used through a graphical user interface or command-line interface.
Please take the latest code from 'https://github.com/DIA-NZ/Metadata-Extraction-Tool.git'. The code on source forge will not be updated henceforth as it is moved to github.
With the "xix" library, GATE functionality is available in XQuery (via an MXQuery extension). OpenCalais invocation is supported, too. -- Sourcecode at http://sgv-jenkins-01.ethz.ch/job/xixlib/ws/-- "Show project details" for instruction
Framework for storing and editing Forestry-related XML data, with a specialised graphical interface for each object type. Plug-in API for adding functionality. Coded in Java, uses WebStart for distribution, swing GUI, ~100k lines of code.