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February 01, 2011

Mark Wielaard: New GPG key. Finally created a new GPG key using gnupg. The old one was a DSA/1024 bits one and 8 years old. The new one is a RSA/2048 bits one. I will use the new one in the future to sign any release tarballs I might create. pub 2048R/57816A6A 2011-01-29 Key f...

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February 01, 2011

Andrew Hughes: [SECURITY] IcedTea6 1.7.8, 1.8.5, 1.9.5 Released!. We are pleased to announce a new set of security releases, IcedTea6 1.7.8, IcedTea6 1.8.5 and IcedTea6 1.9.5. This update contains the following security updates: The IcedTea project provides a harness to build the source code from OpenJDK6 u...

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Little teaser: OpenSesame RDF store on Android

A couple of days ago I did a massive refactoring in a couple of components of blueBill Mobile; the ones related to the management of fact sheets (e.g. bird calls with metadata) that I was talking about in a previous post. The first implementation (in the latest release) was based on RDF triples and used an ad-hoc implementation of a RDF+JSON serializer; now I can say I'm successfully running some modules of OpenSesame, so I got rid of a bunch of my own code and - above all - I'm able to generate and parse RDF+XML and RDF+N3 too. BTW, the RDF+N3 parser seems to be much faster than RDF+JSON, thus I probably don't need the latter any longer. Googling around one can find traces of people trying to use an RDF store on Android - so far I've mostly found people talking of Jena ports. What I like of OpenSesame is that it's released in many small and self-consistent modules, that made really easier for me the integration of what I need so far (and I'll be probably able to incrementally integrate other parts). At the moment I'm not using any backing database, but the simplified in-memory Graph object together with a few serializers. I'll investigate about the backing database after the next release (end of July). I didn't have to change the sources of OpenSesame, but needed to do some patching to work around some XML problems with Android (as usual: missing stuff). This is just a teaser since I...

Date: July, 12 2010

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