dsmiley commented on a change in pull request #412:
URL: https://github.com/apache/lucene/pull/412#discussion_r735937665
##########
File path:
lucene/highlighter/src/test/org/apache/lucene/search/uhighlight/TestUnifiedHighlighter.java
##########
@@ -638,6 +674,39 @@ protected BreakIterator getBreakIterator(String field) {
ir.close();
}
+ // This is a copy of testHighlightAllText() where UnifiedHighlighter is
created using a builder.
+ public void testHighlightAllTextUsingBuilder() throws Exception {
Review comment:
Why duplicate a test for this? Builders don't need to be tested
directly; they will in-effect be tested indirectly by tests using them
naturally. Even if that isn't perfect; I wouldn't bother. Furthermore I'm
dubious that you needed to add the other tests in this PR.
##########
File path:
lucene/highlighter/src/java/org/apache/lucene/search/uhighlight/UnifiedHighlighter.java
##########
@@ -143,6 +143,91 @@
private int cacheFieldValCharsThreshold = DEFAULT_CACHE_CHARS_THRESHOLD;
+ /** Builder for UnifiedHighlighter. */
+ public static class Builder {
+ private final IndexSearcher searcher;
+ private final Analyzer indexAnalyzer;
+ private boolean handleMultiTermQuery = true;
+ private boolean highlightPhrasesStrictly = true;
+ private boolean passageRelevancyOverSpeed = true;
+ private int maxLength = DEFAULT_MAX_LENGTH;
+ private Supplier<BreakIterator> breakIterator =
+ () -> BreakIterator.getSentenceInstance(Locale.ROOT);
+ private Predicate<String> fieldMatcher;
+ private PassageScorer scorer = new PassageScorer();
+ private PassageFormatter formatter = new DefaultPassageFormatter();
+ private int maxNoHighlightPassages = -1;
+ private int cacheFieldValCharsThreshold = DEFAULT_CACHE_CHARS_THRESHOLD;
+
+ public Builder(IndexSearcher searcher, Analyzer indexAnalyzer) {
+ this.searcher = Objects.requireNonNull(searcher);
+ this.indexAnalyzer = Objects.requireNonNull(indexAnalyzer);
+ }
+
+ public Builder withHandleMultiTermQuery(boolean value) {
+ this.handleMultiTermQuery = value;
+ return self();
+ }
+
+ public Builder withHighlightPhrasesStrictly(boolean value) {
+ this.highlightPhrasesStrictly = value;
+ return self();
+ }
+
+ public Builder withPassageRelevancyOverSpeed(boolean value) {
+ this.passageRelevancyOverSpeed = value;
+ return self();
+ }
+
+ public Builder withMaxLength(int value) {
+ if (value < 0 || value == Integer.MAX_VALUE) {
+ // two reasons: no overflow problems in
BreakIterator.preceding(offset+1),
+ // our sentinel in the offsets queue uses this value to terminate.
+ throw new IllegalArgumentException("maxLength must be <
Integer.MAX_VALUE");
+ }
+ this.maxLength = value;
+ return self();
+ }
+
+ public Builder withBreakIterator(Supplier<BreakIterator> value) {
+ this.breakIterator = value;
+ return self();
+ }
+
+ public Builder withFieldMatcher(Predicate<String> value) {
+ this.fieldMatcher = value;
+ return self();
+ }
+
+ public Builder withScorer(PassageScorer value) {
+ this.scorer = value;
+ return self();
+ }
+
+ public Builder withFormatter(PassageFormatter value) {
+ this.formatter = value;
+ return self();
+ }
+
+ public Builder withMaxNoHighlightPassages(int value) {
+ this.maxNoHighlightPassages = value;
+ return self();
+ }
+
+ public Builder withCacheFieldValCharsThreshold(int value) {
+ this.cacheFieldValCharsThreshold = value;
+ return self();
+ }
+
+ protected Builder self() {
Review comment:
Aha; I assume this is for subclassing the builder. I think for this to
work properly, Builder would need to be generic, otherwise there's not much
point? Maybe you'll explore that.
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