- Update exact match logic

Author: haideriqbal

backend/src/main/java/uk/ac/ebi/spot/ols/controller/api/v1/SolrFieldMapper.java

@@ -18,6 +18,11 @@ public static List<String> mapFieldsList(Collection<String> ols3FieldNames) {
             String prefix = "";
             String suffix = "";
 
+            if (legacyFieldName.indexOf('^') != -1) {
+                suffix = legacyFieldName.substring(legacyFieldName.indexOf('^'));
+                legacyFieldName = legacyFieldName.substring(0, legacyFieldName.indexOf('^'));
+            }
+
             if (legacyFieldName.endsWith("_s")) {
                 prefix = "lowercase_";
                 legacyFieldName = legacyFieldName.substring(0, legacyFieldName.length() - 2);
@@ -26,11 +31,6 @@ public static List<String> mapFieldsList(Collection<String> ols3FieldNames) {
                 legacyFieldName = legacyFieldName.substring(0, legacyFieldName.length() - 2);
             }
 
-        if (legacyFieldName.indexOf('^') != -1) {
-                suffix = legacyFieldName.substring(legacyFieldName.indexOf('^'));
-                legacyFieldName = legacyFieldName.substring(0, legacyFieldName.indexOf('^'));
-            }
-
             if (legacyFieldName.equals("iri")) {
                 newFields.add(prefix + "iri" + suffix);
                 continue;

backend/src/main/java/uk/ac/ebi/spot/ols/controller/api/v1/V1SearchController.java

@@ -127,17 +127,18 @@ public void search(
         if (queryFields == null) {
             // if exact just search the supplied fields for exact matches
             if (exact) {
-                String[] fields = {"label_s", "synonym_s", "short_form_s", "obo_id_s", "iri_s", "annotations_trimmed"};
-                solrQuery.setQuery(
-                        "((" +
-                                createUnionQuery(query.toLowerCase(), SolrFieldMapper.mapFieldsList(List.of(fields))
-                                        .toArray(new String[0]), true)
-                                + ") AND ("+ IS_DEFINING_ONTOLOGY.getText() + ":\"true\"^100 OR " +
-                                IS_DEFINING_ONTOLOGY.getText() + ":false^0))"
-                );
-
+                solrQuery.set("defType", "edismax");
+                solrQuery.setQuery(query.toLowerCase());
+                // Specify the query fields with boosting
+                String[] fields = {"label_s^5", "synonym_s^3", "short_form_s^2", "obo_id_s^2", "iri_s", "annotations_trimmed"};
+                solrQuery.set("qf", String.join(" ", SolrFieldMapper.mapFieldsList(List.of(fields))));
+                // Boost exact phrase matches in label and synonym fields
+                solrQuery.set("pf", "lowercase_label^10 lowercase_synonym^5");
+                // Set minimum match to require all terms in the phrase to match
+                solrQuery.set("mm", "100%");
+                // Add boost query to prioritize defining ontologies
+                solrQuery.set("bq", IS_DEFINING_ONTOLOGY.getText() + ":\"true\"^100");
             } else {
-
                 solrQuery.set("defType", "edismax");
                 solrQuery.setQuery(query);