The following code is an example of loading data via crawler with special function to generate link for downloading:
create procedure EUROPEANA_STORE (in _host varchar, in _url varchar, in _root varchar, inout _content varchar, in _s_etag varchar, in _c_type varchar, in store_flag int := 1, in udata any := null, in lev int := 0)
{
declare url varchar;
declare xt, xp any;
declare old_mode int;
xt := xtree_doc (_content, 2);
xp := xpath_eval ('//table//tr/td/a[@href]/text()', xt, 0);
commit work;
old_mode := log_enable (3,1);
foreach (any u in xp) do
{
u := cast (u as varchar);
url := sprintf ('http://semanticweb.cs.vu.nl/europeana/api/export_graph?graph=%U&mimetype=default&format=turtle', u);
dbg_printf ('%s', u);
{
declare continue handler for sqlstate '*' {
dbg_printf ('ERROR: %s', __SQL_MESSAGE);
};
SPARQL LOAD ?:url into GRAPH ?:u;
}
}
log_enable (old_mode, 1);
return WS.WS.LOCAL_STORE (_host, _url, _root, _content, _s_etag, _c_type, store_flag, 0);
}