Use best-match ranker for one word queries

1 files changed, 8 insertions, 5 deletions

diff --git a/src/main/java/com/juick/service/SphinxSearchService.java b/src/main/java/com/juick/service/SphinxSearchService.java
index 1553e22f..aa62ddda 100644
--- a/src/main/java/com/juick/service/SphinxSearchService.java
+++ b/src/main/java/com/juick/service/SphinxSearchService.java
@@ -43,12 +43,12 @@ public class SphinxSearchService extends BaseJdbcService implements SearchServic
     @Inject
     UserService userService;
 
-    public String sortHint(String searchString) {
-        return "extended:@weight desc, @id desc";
+    boolean isOneWord(String searchString) {
+        return searchString.split("[^\\S\\+]+").length == 1;
     }
+
     public String keywordBoost(String searchString) {
-        boolean isOneWord = searchString.split("[^\\S\\+]+").length == 1;
-        return isOneWord ? String.format("%s^3", searchString) : searchString;
+        return isOneWord(searchString) ? String.format("%s^3", searchString) : searchString;
     }
 
     @Override
@@ -59,9 +59,12 @@ public class SphinxSearchService extends BaseJdbcService implements SearchServic
         Map<String, String> sphinxQuery = new HashMap<>();
         sphinxQuery.put("limit", String.valueOf(maxResult));
         sphinxQuery.put("mode", "any");
-        sphinxQuery.put("sort", sortHint(searchString));
+        sphinxQuery.put("sort", "extended:@weight desc, @id desc");
         String usersFilter = userService.getUserBLUsers(visitor.getUid()).stream().map(u -> String.valueOf(u.getUid())).collect(Collectors.joining(","));
         sphinxQuery.put("!filter", "user_id," + usersFilter);
+        if (isOneWord(searchString)) {
+            sphinxQuery.put("ranker", "bm25");
+        }
         if (page > 0) {
             sphinxQuery.put("offset", String.valueOf(page * maxResult));
         }