private XFacetedQuery XML2Query(Document doc) {
try {
Node node = null;
NamedNodeMap map = null;
node = doc.getElementsByTagName("action").item(0);
map = node.getAttributes();
// create XFacetedQuery
node = doc.getElementsByTagName("targetNode").item(0);
map = node.getAttributes();
int target = new Integer(map.getNamedItem("index").getNodeValue()).intValue();
CatRelGraph graph = schemaFactory.createCatRelGraph();
node = doc.getElementsByTagName("queryNode").item(0);
graph.add(createGeneralCategory(node));
// System.out.println("name="+node.getNodeName());
addRelations(graph, 0, node.getChildNodes());
System.out.println(graph);
System.out.println("target=" + target);
XFacetedQuery query = searchFactory.createXFacetedQuery();
query.setSearchTarget(target);
query.setQueryConstraint(graph);
query.setResultSpec(searchFactory.createXFacetedResultSpec());
return query;
} catch (Exception ex) {
ex.printStackTrace();
}
return null;
}
protected SchemaObjectInfo getInfo(IndexReader indexReader, int docID) throws IOException {
FieldType[] fields =
new FieldType[] {
FieldType.ID, FieldType.URI, FieldType.LABEL, FieldType.SUMMARY, FieldType.TEXT
};
String[] values = indexReader.getFieldValues(docID, fields);
return schemaFactory.createSchemaObjectInfo(
Long.valueOf(values[0]), values[1], values[2], values[3], values[4]);
}
private GeneralCategory createGeneralCategory(Node node)
throws NoSuchAlgorithmException, DOMException {
NamedNodeMap map = node.getAttributes();
CompoundCategory cat = schemaFactory.createCompoundCategory(CompoundCategory.TYPE_AND);
Node n = map.getNamedItem("instanceConstraint");
if (n != null && !n.getNodeValue().equals("")) {
cat.addComponentCategory(
schemaFactory
.createEnumerationCategory()
.addInstanceElement(schemaFactory.createInstance(n.getNodeValue())));
return cat;
}
n = map.getNamedItem("conceptConstraint");
if (n != null && !n.getNodeValue().equals("")) {
cat.addComponentCategory(schemaFactory.createCategory(n.getNodeValue()));
}
n = map.getNamedItem("keyword");
if (n != null && !n.getNodeValue().equals("")) {
cat.addComponentCategory(schemaFactory.createKeywordCategory(n.getNodeValue()));
}
return cat;
}
private void addRelations(CatRelGraph graph, int fromNodeIndex, NodeList nodes)
throws NoSuchAlgorithmException, DOMException {
if (nodes == null) return;
for (int i = 0; i < nodes.getLength(); i++) {
Node node = nodes.item(i);
if (node.getNodeName().equals("#text")) continue;
// System.out.println("name="+node.getNodeName());
graph.add(createGeneralCategory(node));
int toNodeIndex = graph.numOfNodes() - 1;
NamedNodeMap map = node.getAttributes();
if (map.getNamedItem("inverse").getNodeValue().equals("0")) {
graph.add(
schemaFactory.createRelation(map.getNamedItem("relation").getNodeValue()),
fromNodeIndex,
toNodeIndex);
} else {
graph.add(
schemaFactory.createRelation(map.getNamedItem("relation").getNodeValue()),
toNodeIndex,
fromNodeIndex);
}
addRelations(graph, toNodeIndex, node.getChildNodes());
}
}