@RequestMapping(
value = {"/", "/index"},
method = RequestMethod.GET)
public String home(Model model) {
// Two Test Dataset from datehub.io
InputStream in2005 =
servletContext.getResourceAsStream("/WEB-INF/content/ibm-publications-2005.rdf");
InputStream in2006 =
servletContext.getResourceAsStream("/WEB-INF/content/ibm-publications-2006.rdf");
try {
ArrayList<RdfModel> rms2005 = RdfProcess.processRDF(in2005);
Boolean b = rms2005.addAll(RdfProcess.processRDF(in2006));
for (int i = 0; i < rms2005.size(); i++)
jc.execute(
new Delete.Builder(String.valueOf(i))
.index("publications")
.type("publication")
.build());
RdfSearch.Indexing(jc, rms2005);
model.addAttribute("rdfModel", new RdfModel());
} catch (Exception e) {
e.printStackTrace();
}
return "index";
}
public static ArrayList<RdfModel> processRDF(InputStream in) {
Model model = ModelFactory.createDefaultModel();
ArrayList<RdfModel> result = new ArrayList<RdfModel>();
if (in != null) {
model.read(in, "RDF/XML");
// Now, I only care these propties: has-title, year-of, full-name. All three of them must
// exist'
for (final ResIterator it = model.listSubjectsWithProperty(RdfPropertyList.p_hasTitle);
it.hasNext(); ) {
RdfModel rm = new RdfModel();
try {
final Resource node =
it.next().asResource(); // node is a resource which has title property
rm.setHasTitle(node.getProperty(RdfPropertyList.p_hasTitle).getString());
StringBuilder authors = new StringBuilder();
StringBuilder dates = new StringBuilder();
for (final StmtIterator all_props = node.listProperties(); all_props.hasNext(); ) {
try {
Resource all_res = all_props.next().getObject().asResource();
StmtIterator fullnames = all_res.listProperties(RdfPropertyList.p_fullName);
StmtIterator years = all_res.listProperties(RdfPropertyList.p_year);
// Just for now I may have mutiple author or dates in a String, seperated by comma
RdfProcess newprocess = new RdfProcess();
while (fullnames.hasNext()) {
String fullname = newprocess.getValue(fullnames.next().getObject());
if (!fullname.equals("Invalid/Lack of Information")) {
authors.append(fullname + " , ");
}
}
while (years.hasNext()) {
String year = newprocess.getValue(years.next().getObject());
if (!year.equals("Invalid/Lack of Information")) {
dates.append(year + " , ");
}
}
} catch (Exception e) {
}
}
rm.setHasDate(dates.toString());
rm.setHasAuthor(authors.toString());
} catch (Exception e) {
}
result.add(rm);
}
}
return result;
}