use of org.apache.solr.search.DocIterator in project lucene-solr by apache.
the class MoreLikeThisHandler method handleRequestBody.
@Override
public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
SolrParams params = req.getParams();
long timeAllowed = (long) params.getInt(CommonParams.TIME_ALLOWED, -1);
if (timeAllowed > 0) {
SolrQueryTimeoutImpl.set(timeAllowed);
}
try {
// Set field flags
ReturnFields returnFields = new SolrReturnFields(req);
rsp.setReturnFields(returnFields);
int flags = 0;
if (returnFields.wantsScore()) {
flags |= SolrIndexSearcher.GET_SCORES;
}
String defType = params.get(QueryParsing.DEFTYPE, QParserPlugin.DEFAULT_QTYPE);
String q = params.get(CommonParams.Q);
Query query = null;
SortSpec sortSpec = null;
List<Query> filters = null;
try {
if (q != null) {
QParser parser = QParser.getParser(q, defType, req);
query = parser.getQuery();
sortSpec = parser.getSortSpec(true);
}
String[] fqs = req.getParams().getParams(CommonParams.FQ);
if (fqs != null && fqs.length != 0) {
filters = new ArrayList<>();
for (String fq : fqs) {
if (fq != null && fq.trim().length() != 0) {
QParser fqp = QParser.getParser(fq, req);
filters.add(fqp.getQuery());
}
}
}
} catch (SyntaxError e) {
throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, e);
}
SolrIndexSearcher searcher = req.getSearcher();
MoreLikeThisHelper mlt = new MoreLikeThisHelper(params, searcher);
// Hold on to the interesting terms if relevant
TermStyle termStyle = TermStyle.get(params.get(MoreLikeThisParams.INTERESTING_TERMS));
List<InterestingTerm> interesting = (termStyle == TermStyle.NONE) ? null : new ArrayList<>(mlt.mlt.getMaxQueryTerms());
DocListAndSet mltDocs = null;
// Parse Required Params
// This will either have a single Reader or valid query
Reader reader = null;
try {
if (q == null || q.trim().length() < 1) {
Iterable<ContentStream> streams = req.getContentStreams();
if (streams != null) {
Iterator<ContentStream> iter = streams.iterator();
if (iter.hasNext()) {
reader = iter.next().getReader();
}
if (iter.hasNext()) {
throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "MoreLikeThis does not support multiple ContentStreams");
}
}
}
int start = params.getInt(CommonParams.START, CommonParams.START_DEFAULT);
int rows = params.getInt(CommonParams.ROWS, CommonParams.ROWS_DEFAULT);
// --------------------------------------------------------------------------------
if (reader != null) {
mltDocs = mlt.getMoreLikeThis(reader, start, rows, filters, interesting, flags);
} else if (q != null) {
// Matching options
boolean includeMatch = params.getBool(MoreLikeThisParams.MATCH_INCLUDE, true);
int matchOffset = params.getInt(MoreLikeThisParams.MATCH_OFFSET, 0);
// Find the base match
DocList match = searcher.getDocList(query, null, null, matchOffset, 1, // only get the first one...
flags);
if (includeMatch) {
rsp.add("match", match);
}
// This is an iterator, but we only handle the first match
DocIterator iterator = match.iterator();
if (iterator.hasNext()) {
// do a MoreLikeThis query for each document in results
int id = iterator.nextDoc();
mltDocs = mlt.getMoreLikeThis(id, start, rows, filters, interesting, flags);
}
} else {
throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "MoreLikeThis requires either a query (?q=) or text to find similar documents.");
}
} finally {
if (reader != null) {
reader.close();
}
}
if (mltDocs == null) {
// avoid NPE
mltDocs = new DocListAndSet();
}
rsp.addResponse(mltDocs.docList);
if (interesting != null) {
if (termStyle == TermStyle.DETAILS) {
NamedList<Float> it = new NamedList<>();
for (InterestingTerm t : interesting) {
it.add(t.term.toString(), t.boost);
}
rsp.add("interestingTerms", it);
} else {
List<String> it = new ArrayList<>(interesting.size());
for (InterestingTerm t : interesting) {
it.add(t.term.text());
}
rsp.add("interestingTerms", it);
}
}
// maybe facet the results
if (params.getBool(FacetParams.FACET, false)) {
if (mltDocs.docSet == null) {
rsp.add("facet_counts", null);
} else {
SimpleFacets f = new SimpleFacets(req, mltDocs.docSet, params);
rsp.add("facet_counts", FacetComponent.getFacetCounts(f));
}
}
boolean dbg = req.getParams().getBool(CommonParams.DEBUG_QUERY, false);
boolean dbgQuery = false, dbgResults = false;
if (dbg == false) {
//if it's true, we are doing everything anyway.
String[] dbgParams = req.getParams().getParams(CommonParams.DEBUG);
if (dbgParams != null) {
for (String dbgParam : dbgParams) {
if (dbgParam.equals(CommonParams.QUERY)) {
dbgQuery = true;
} else if (dbgParam.equals(CommonParams.RESULTS)) {
dbgResults = true;
}
}
}
} else {
dbgQuery = true;
dbgResults = true;
}
// Copied from StandardRequestHandler... perhaps it should be added to doStandardDebug?
if (dbg == true) {
try {
NamedList<Object> dbgInfo = SolrPluginUtils.doStandardDebug(req, q, mlt.getRawMLTQuery(), mltDocs.docList, dbgQuery, dbgResults);
if (null != dbgInfo) {
if (null != filters) {
dbgInfo.add("filter_queries", req.getParams().getParams(CommonParams.FQ));
List<String> fqs = new ArrayList<>(filters.size());
for (Query fq : filters) {
fqs.add(QueryParsing.toString(fq, req.getSchema()));
}
dbgInfo.add("parsed_filter_queries", fqs);
}
rsp.add("debug", dbgInfo);
}
} catch (Exception e) {
SolrException.log(log, "Exception during debug", e);
rsp.add("exception_during_debug", SolrException.toStr(e));
}
}
} catch (ExitableDirectoryReader.ExitingReaderException ex) {
log.warn("Query: " + req.getParamString() + "; " + ex.getMessage());
} finally {
SolrQueryTimeoutImpl.reset();
}
}
use of org.apache.solr.search.DocIterator in project Solbase by Photobucket.
the class SolbaseComponent method process.
public void process(ResponseBuilder rb) throws IOException {
DocList list = rb.getResults().docList;
DocIterator it = list.iterator();
List<Integer> docIds = new ArrayList<Integer>(list.size());
while (it.hasNext()) docIds.add(it.next());
IndexReader reader = (IndexReader) ((SolrIndexReader) rb.req.getSearcher().getIndexReader()).getWrappedReader();
SolrQueryRequest req = rb.req;
SolrParams params = req.getParams();
String ids = params.get(ShardParams.IDS);
// first phase of sharding only tries to fetch docids and scores which are already in tv
if (SolbaseShardUtil.getNumShard() != 0) {
if (ids != null) {
IndexReader.firstPhase.set(false);
} else {
IndexReader.firstPhase.set(true);
}
} else {
// it's always false in case of stand alone
IndexReader.firstPhase.set(false);
}
logger.debug(reader.getIndexName() + " : Fetching " + docIds.size() + " Docs");
if (docIds.size() > 0) {
List<byte[]> fieldFilter = null;
Set<String> returnFields = rb.rsp.getReturnFields();
if (returnFields != null) {
// copy return fields list
fieldFilter = new ArrayList<byte[]>(returnFields.size());
for (String field : returnFields) {
fieldFilter.add(Bytes.toBytes(field));
}
// add highlight fields
SolrHighlighter highligher = rb.req.getCore().getHighlighter();
if (highligher.isHighlightingEnabled(rb.req.getParams())) {
for (String field : highligher.getHighlightFields(rb.getQuery(), rb.req, null)) if (!returnFields.contains(field))
fieldFilter.add(Bytes.toBytes(field));
}
// fetch unique key if one exists.
SchemaField keyField = rb.req.getSearcher().getSchema().getUniqueKeyField();
if (null != keyField)
if (!returnFields.contains(keyField))
fieldFilter.add(Bytes.toBytes(keyField.getName()));
}
FieldSelector selector = new SolbaseFieldSelector(docIds, fieldFilter);
// This will bulk load these docs
rb.req.getSearcher().getReader().document(docIds.get(0), selector);
}
ReaderCache.flushThreadLocalCaches(reader.getIndexName());
}
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