@Override
public void handle(HttpServletRequest request, HttpServletResponse response, HandlerChain chain)
throws Exception {
long totalStartTime = System.nanoTime();
final String query;
final String filter = getRequiredParameter(request, "filter");
final int offset = (int) getOptionalParameterLong(request, "offset", 0);
final int size = (int) getOptionalParameterLong(request, "size", DEFAULT_RESULT_COUNT);
final String conceptType = getOptionalParameter(request, "conceptType");
final String getLeafNodes = getOptionalParameter(request, "leafNodes");
final String relatedToVertexId = getOptionalParameter(request, "relatedToVertexId");
if (relatedToVertexId == null) {
query = getRequiredParameter(request, "q");
} else {
query = getOptionalParameter(request, "q");
}
long startTime = System.nanoTime();
User user = getUser(request);
Authorizations authorizations = getAuthorizations(request, user);
String workspaceId = getActiveWorkspaceId(request);
ModelUserContext modelUserContext =
userRepository.getModelUserContext(authorizations, workspaceId);
JSONArray filterJson = new JSONArray(filter);
ontologyRepository.resolvePropertyIds(filterJson);
graph.flush();
LOGGER.debug("search %s\n%s", query, filterJson.toString(2));
Query graphQuery;
if (relatedToVertexId == null) {
graphQuery = graph.query(query, authorizations);
} else if (query == null || StringUtils.isBlank(query)) {
graphQuery = graph.getVertex(relatedToVertexId, authorizations).query(authorizations);
} else {
graphQuery = graph.getVertex(relatedToVertexId, authorizations).query(query, authorizations);
}
for (int i = 0; i < filterJson.length(); i++) {
JSONObject obj = filterJson.getJSONObject(i);
if (obj.length() > 0) {
updateQueryWithFilter(graphQuery, obj);
}
}
if (conceptType != null) {
Concept concept = ontologyRepository.getConceptByIRI(conceptType);
if (getLeafNodes == null || !getLeafNodes.equals("false")) {
List<Concept> leafNodeList = ontologyRepository.getAllLeafNodesByConcept(concept);
if (leafNodeList.size() > 0) {
String[] conceptIds = new String[leafNodeList.size()];
int count = 0;
for (Concept c : leafNodeList) {
conceptIds[count] = c.getTitle();
count++;
}
graphQuery.has(CONCEPT_TYPE.getPropertyName(), Compare.IN, conceptIds);
}
} else {
graphQuery.has(CONCEPT_TYPE.getPropertyName(), conceptType);
}
}
graphQuery.limit(size);
graphQuery.skip(offset);
Iterable<Vertex> searchResults;
try {
searchResults = graphQuery.vertices();
} catch (SearchPhaseExecutionException ex) {
respondWithBadRequest(response, "q", "Invalid Query");
return;
}
Map<Object, Double> scores = null;
if (searchResults instanceof IterableWithScores) {
scores = ((IterableWithScores) searchResults).getScores();
}
long retrievalStartTime = System.nanoTime();
List<JSONObject> verticesJsonList = new ArrayList<JSONObject>();
for (Vertex vertex : searchResults) {
JSONObject vertexJson = JsonSerializer.toJson(vertex, workspaceId);
if (scores != null) {
vertexJson.put("score", scores.get(vertex.getId()));
}
vertexJson.put(
"detectedObjects",
detectedObjectRepository.toJSON(vertex, modelUserContext, authorizations, workspaceId));
verticesJsonList.add(vertexJson);
}
long retrievalEndTime = System.nanoTime();
Collections.sort(
verticesJsonList,
new Comparator<JSONObject>() {
@Override
public int compare(JSONObject o1, JSONObject o2) {
double score1 = o1.optDouble("score", 0.0);
double score2 = o2.optDouble("score", 0.0);
return -Double.compare(score1, score2);
}
});
JSONArray verticesJson = new JSONArray();
for (JSONObject vertexJson : verticesJsonList) {
verticesJson.put(vertexJson);
}
long totalEndTime = System.nanoTime();
JSONObject results = new JSONObject();
results.put("vertices", verticesJson);
results.put("nextOffset", offset + size);
results.put("retrievalTime", retrievalEndTime - retrievalStartTime);
results.put("totalTime", totalEndTime - totalStartTime);
if (searchResults instanceof IterableWithTotalHits) {
results.put("totalHits", ((IterableWithTotalHits) searchResults).getTotalHits());
}
if (searchResults instanceof IterableWithSearchTime) {
results.put(
"searchTime", ((IterableWithSearchTime) searchResults).getSearchTimeNanoSeconds());
}
long endTime = System.nanoTime();
LOGGER.info(
"Search for \"%s\" found %d vertices in %dms",
query, verticesJsonList.size(), (endTime - startTime) / 1000 / 1000);
respondWithJson(response, results);
}
