ChrisHegarty commented on code in PR #12311:
URL: https://github.com/apache/lucene/pull/12311#discussion_r1198253248
##########
lucene/core/src/java/org/apache/lucene/util/VectorUtil.java:
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@@ -270,4 +216,134 @@ public static float dotProductScore(byte[] a, byte[] b) {
float denom = (float) (a.length * (1 << 15));
return 0.5f + dotProduct(a, b) / denom;
}
+
+ interface VectorUtilProvider {
+
+ // just dot product for now
+ float dotProduct(float[] a, float[] b);
+ }
+
+ private static VectorUtilProvider lookupProvider() {
+ // TODO: add a check
+ final int runtimeVersion = Runtime.version().feature();
+ if (runtimeVersion == 20) { // TODO: do we want JDK 19?
+ try {
+ ensureReadability();
Review Comment:
I refactored the code so that the presence of the module is enough to enable
this.
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