@SuppressWarnings("unchecked")
@Override
public List<String> getClusterByCarrot2(String query) {
// TODO Auto-generated method stub
List<String> strs = new ArrayList<String>();
final Controller controller = ControllerFactory.createCachingPooling(IDocumentSource.class);
final List<org.carrot2.core.Document> documents = Lists.newArrayList();
try {
q = getParser().parse(QueryParserUtil.escape(query));
docs = getIndexSearcher().search(q, Integer.MAX_VALUE);
hits = docs.scoreDocs;
for (int i = 0; i < hits.length; i++) {
Document doc = getIndexSearcher().doc(hits[i].doc);
documents.add(
new org.carrot2.core.Document(
doc.get(CONTENTS_FIELD), doc.get(TITLE_FIELD), doc.get(USER_FIELD)));
}
final ProcessingResult byTopicClusters =
controller.process(documents, query, LingoClusteringAlgorithm.class);
final List<Cluster> clustersByTopic = byTopicClusters.getClusters();
final ProcessingResult byDomainClusters =
controller.process(documents, query, ByUrlClusteringAlgorithm.class);
final List<Cluster> clustersByDomain = byDomainClusters.getClusters();
for (Cluster c : clustersByDomain) {
strs.add(c.getLabel());
}
for (Cluster c : clustersByTopic) {
strs.add(c.getLabel());
}
} catch (Exception ex) {
}
return strs;
}
@UsesExternalServices
@Test
public void testRequestIndependence() {
@SuppressWarnings("unchecked")
final Controller controller =
ControllerFactory.createCachingPooling(org.carrot2.core.IDocumentSource.class);
closeAfterTest(controller);
final Map<String, Object> attrs = Maps.newHashMap();
CommonAttributesDescriptor.attributeBuilder(attrs).results(50).query("data mining");
controller.process(
attrs, org.carrot2.webapp.source.WebDocumentSource.class, LingoClusteringAlgorithm.class);
attrs.clear();
CommonAttributesDescriptor.attributeBuilder(attrs)
.results(50)
.query(WebDocumentSource.QUERY_FAILURE);
try {
controller.process(
attrs, org.carrot2.webapp.source.WebDocumentSource.class, LingoClusteringAlgorithm.class);
fail();
} catch (ProcessingException e) {
assertThat(e.getCause().getMessage()).contains("Synthetic failure");
}
}