almogtavor commented on issue #12406:
URL: https://github.com/apache/lucene/issues/12406#issuecomment-1627194434
@mikemccand maybe you've got an idea?
<details>
<summary>I tried to follow the instructions that I saw in your blog and
produced code as follows:</summary>
```java
@Override
public void run(ApplicationArguments args) throws Exception {
MonitorConfiguration monitorConfig = new MonitorConfiguration();
Monitor monitor = new Monitor(new StandardAnalyzer(), new
TermFilteredPresearcher(), monitorConfig);
registerQueries(monitor);
// Creating a parent document with child documents
Document parentDoc = new Document();
parentDoc.add(new StringField("id", "shirt1", Field.Store.YES));
parentDoc.add(new StringField("name", "wolf", Field.Store.YES));
parentDoc.add(new StringField("type", "shirt", Field.Store.YES));
// Creating child documents (SKUs)
Document childDoc1 = new Document();
childDoc1.add(new StringField("size", "small", Field.Store.YES));
childDoc1.add(new StringField("color", "blue", Field.Store.YES));
Document childDoc2 = new Document();
childDoc2.add(new StringField("size", "medium", Field.Store.YES));
childDoc2.add(new StringField("color", "black", Field.Store.YES));
Document[] documents = {parentDoc,childDoc1,childDoc2};
MultiMatchingQueries<HighlightsMatch> hm = monitor.match(documents,
HighlightsMatch.MATCHER);
log.info("Got " + hm.getMatchCount(0) + " matches");
hm.getMatches(0).forEach(m -> {
log.info("Match: " + m.getQueryId() + " with " +
m.getHitCount());
m.getHits("name").forEach(h -> {
log.info(" hit: " + h.toString() + " - " +
parentDoc.get("name").substring(h.startOffset, h.endOffset));
});
});
}
private void registerQueries(Monitor monitor) throws IOException,
ParseException {
MonitorQuery monitorQuery1 = newMonitorQuery("ShirtQuery1",
"name:wolf AND size:small AND color:blue", Collections.singletonMap("customer",
"123"));
MonitorQuery monitorQuery2 = newMonitorQuery("ShirtQuery2",
"name:wolf AND size:medium AND color:black",
Collections.singletonMap("customer", "124"));
monitor.register(monitorQuery1);
monitor.register(monitorQuery2);
}
private MonitorQuery newMonitorQuery(String id, String queryString,
Map<String, String> metadata) throws ParseException {
QueryParser qp = new QueryParser("name", new StandardAnalyzer());
Query shirtQuery = qp.parse(queryString.split(" AND ")[0]);
QueryParser qpChild = new QueryParser("size", new
StandardAnalyzer());
Query sizeQuery = qpChild.parse(queryString.split(" AND ")[1]);
qpChild = new QueryParser("color", new StandardAnalyzer());
Query colorQuery = qpChild.parse(queryString.split(" AND ")[2]);
BooleanQuery childQuery = new BooleanQuery.Builder()
.add(sizeQuery, BooleanClause.Occur.MUST)
.add(colorQuery, BooleanClause.Occur.MUST)
.build();
// Construct ToParentBlockJoinQuery from child query
BitSetProducer parentFilter = new QueryBitSetProducer(new
TermQuery(new Term("type", "shirt")));
ToParentBlockJoinQuery parentJoinQuery = new
ToParentBlockJoinQuery(childQuery, parentFilter, ScoreMode.None);
BooleanQuery finalQuery = new BooleanQuery.Builder()
.add(shirtQuery, BooleanClause.Occur.MUST)
.add(parentJoinQuery, BooleanClause.Occur.MUST)
.build();
log.info("Registered monitor query " + id);
return new MonitorQuery(id, finalQuery, queryString, metadata);
}
```
</details>
But it still wouldn't match.
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