Listing 13. Use Jena to query your Planet Me site.

$ cat rss-by-date.sparql
PREFIX dc:   <http://purl.org/dc/elements/1.1/>
PREFIX xsd:  <http://www.w3.org/2001/XMLSchema#>

DESCRIBE ?channel ?bnode ?a WHERE
{
 ?channel ?items ?bnode .
 ?bnode ?hasitem ?a .
 ?a dc:date ?date .
 FILTER ( xsd:dateTime(?date)
    >= xsd:dateTime("2006-01-03T00:00:00")
 && xsd:dateTime(?date)
    <= xsd:dateTime("2006-01-05T00:00:00") )
}

$ cd ~/planet/me
$ java jena.sparql --data archive.xml \
 --query rss-by-date.sparql --results RDF/XML \
 >my-query-result.rss