On Fri, 2008-04-25 at 14:46 -0700, Alan Millar wrote: > Unfortunately, it is in perl because that's what I know; I've never done > anything in Java yet. I've been wondering if this may be just the time to > learn it. I'm not sure if a JOSM plugin is a good place to start learning > Java or if that is biting off too much to start. > > Any advice? Thanks
Thankfully, the validator tests don't require *too* much java. You can basically cut 'n paste from an existing one with very little trouble. I hadn't touched Java in about 10 years before I started looking at JOSM. I do a lot of C on a daily basis, but no Java. It wasn't hard to pick back up. Here's an example validator test: http://svn.openstreetmap.org/applications/editors/josm/plugins/validator/src/org/openstreetmap/josm/plugins/validator/tests/DuplicateNode.java You basically examine all the Osm Primitives in a couple of visit functions like this: @Override public void visit(Node n) { nodes.add(n.coor, n); } Usually, you just collect them into a structure like that 'nodes' list. Then, in the endTest() function you go an examine all of them. I've been keeping custom versions of JOSM around that have some really nice helpers for writing JOSM plugins. http://dev.openstreetmap.org/~daveh/josm/018/ Like this: for (Way wtmp : Main.ds.rl.waysUsingNode(n)) { That iterates over a list of all the ways using Node 'n'. You probably recognize this operation. I think you do it a bit in your perl script. -- Dave _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk-us
