private Query toQuery(Operation<?> operation, QueryMetadata metadata) {
Operator op = operation.getOperator();
if (op == Ops.OR) {
return toTwoHandSidedQuery(operation, Occur.SHOULD, metadata);
} else if (op == Ops.AND) {
return toTwoHandSidedQuery(operation, Occur.MUST, metadata);
} else if (op == Ops.NOT) {
BooleanQuery bq = new BooleanQuery();
bq.add(new BooleanClause(toQuery(operation.getArg(0), metadata), Occur.MUST_NOT));
bq.add(new BooleanClause(new MatchAllDocsQuery(), Occur.MUST));
return bq;
} else if (op == Ops.LIKE) {
return like(operation, metadata);
} else if (op == Ops.LIKE_IC) {
throw new IgnoreCaseUnsupportedException();
} else if (op == Ops.EQ) {
return eq(operation, metadata, false);
} else if (op == Ops.EQ_IGNORE_CASE) {
throw new IgnoreCaseUnsupportedException();
} else if (op == Ops.NE) {
return ne(operation, metadata, false);
} else if (op == Ops.STARTS_WITH) {
return startsWith(metadata, operation, false);
} else if (op == Ops.STARTS_WITH_IC) {
throw new IgnoreCaseUnsupportedException();
} else if (op == Ops.ENDS_WITH) {
return endsWith(operation, metadata, false);
} else if (op == Ops.ENDS_WITH_IC) {
throw new IgnoreCaseUnsupportedException();
} else if (op == Ops.STRING_CONTAINS) {
return stringContains(operation, metadata, false);
} else if (op == Ops.STRING_CONTAINS_IC) {
throw new IgnoreCaseUnsupportedException();
} else if (op == Ops.BETWEEN) {
return between(operation, metadata);
} else if (op == Ops.IN) {
return in(operation, metadata, false);
} else if (op == Ops.NOT_IN) {
return notIn(operation, metadata, false);
} else if (op == Ops.LT) {
return lt(operation, metadata);
} else if (op == Ops.GT) {
return gt(operation, metadata);
} else if (op == Ops.LOE) {
return le(operation, metadata);
} else if (op == Ops.GOE) {
return ge(operation, metadata);
} else if (op == LuceneOps.LUCENE_QUERY) {
@SuppressWarnings("unchecked") // This is the expected type
Query rv = ((Constant<Query>) operation.getArg(0)).getConstant();
return rv;
}
throw new UnsupportedOperationException("Illegal operation " + operation);
}
@Override
public Query apply(Function input, Context context) {
assert input != null;
assert input.arguments().size() == 1;
BooleanQuery query = new BooleanQuery();
query.add(process(input.arguments().get(0), context), BooleanClause.Occur.MUST_NOT);
query.add(Queries.newMatchAllQuery(), BooleanClause.Occur.MUST);
return query;
}
@Override
protected Query applyArrayReference(
Reference arrayReference, Literal literal, Context context) throws IOException {
// 1 != any ( col ) --> gt 1 or lt 1
String columnName = arrayReference.info().ident().columnIdent().fqn();
Object value = literal.value();
QueryBuilderHelper builder = QueryBuilderHelper.forType(arrayReference.valueType());
BooleanQuery query = new BooleanQuery();
query.setMinimumNumberShouldMatch(1);
query.add(
builder.rangeQuery(columnName, value, null, false, false), BooleanClause.Occur.SHOULD);
query.add(
builder.rangeQuery(columnName, null, value, false, false), BooleanClause.Occur.SHOULD);
return query;
}
@Override
protected Query applyArrayLiteral(Reference reference, Literal arrayLiteral, Context context)
throws IOException {
// col not like ANY (['a', 'b']) --> not(and(like(col, 'a'), like(col, 'b')))
BooleanQuery query = new BooleanQuery();
BooleanQuery notQuery = new BooleanQuery();
String columnName = reference.ident().columnIdent().fqn();
QueryBuilderHelper builder = QueryBuilderHelper.forType(reference.valueType());
for (Object value : toIterable(arrayLiteral.value())) {
notQuery.add(
builder.like(columnName, value, context.indexCache.filter()),
BooleanClause.Occur.MUST);
}
query.add(notQuery, BooleanClause.Occur.MUST_NOT);
return query;
}
private Query toTwoHandSidedQuery(Operation<?> operation, Occur occur, QueryMetadata metadata) {
Query lhs = toQuery(operation.getArg(0), metadata);
Query rhs = toQuery(operation.getArg(1), metadata);
BooleanQuery bq = new BooleanQuery();
bq.add(createBooleanClause(lhs, occur));
bq.add(createBooleanClause(rhs, occur));
return bq;
}
@Override
public Query apply(Function input, Context context) {
assert input != null;
BooleanQuery query = new BooleanQuery();
for (Symbol symbol : input.arguments()) {
query.add(process(symbol, context), BooleanClause.Occur.MUST);
}
return query;
}
public void XtestSetGenerationPerformance() throws Exception {
createIndex(49999);
doSetGen(10000, new TermQuery(new Term("foo1_s", t(0))));
BooleanQuery bq = new BooleanQuery();
bq.add(new TermQuery(new Term("foo2_s", t(0))), BooleanClause.Occur.SHOULD);
bq.add(new TermQuery(new Term("foo2_s", t(1))), BooleanClause.Occur.SHOULD);
doSetGen(5000, bq);
}
private BooleanQuery createQuery(String hashes) {
StringTokenizer tok = new StringTokenizer(hashes);
BooleanQuery q = new BooleanQuery();
while (tok.hasMoreTokens())
q.add(
new BooleanClause(
new TermQuery(new Term("hash", tok.nextToken())), BooleanClause.Occur.SHOULD));
return q;
}
@Override
public Query apply(Function input, Context context) {
assert input != null;
BooleanQuery query = new BooleanQuery();
query.setMinimumNumberShouldMatch(1);
for (Symbol symbol : input.arguments()) {
query.add(process(symbol, context), BooleanClause.Occur.SHOULD);
}
return query;
}
protected Query in(Operation<?> operation, QueryMetadata metadata, boolean ignoreCase) {
Path<?> path = getPath(operation.getArg(0));
String field = toField(path);
@SuppressWarnings("unchecked") // This is the second argument type
Constant<Collection<?>> collConstant = (Constant<Collection<?>>) operation.getArg(1);
Collection<?> values = collConstant.getConstant();
BooleanQuery bq = new BooleanQuery();
if (Number.class.isAssignableFrom(path.getType())) {
for (Object value : values) {
TermQuery eq = new TermQuery(new Term(field, convertNumber((Number) value)));
bq.add(eq, Occur.SHOULD);
}
} else {
for (Object value : values) {
String[] str = convert(path, value);
bq.add(eq(field, str, ignoreCase), Occur.SHOULD);
}
}
return bq;
}
@Override
protected Query applyArrayLiteral(Reference reference, Literal arrayLiteral, Context context)
throws IOException {
// col like ANY (['a', 'b']) --> or(like(col, 'a'), like(col, 'b'))
BooleanQuery booleanQuery = new BooleanQuery();
booleanQuery.setMinimumNumberShouldMatch(1);
for (Object value : toIterable(arrayLiteral.value())) {
booleanQuery.add(
likeQuery.toQuery(reference, value, context), BooleanClause.Occur.SHOULD);
}
return booleanQuery;
}
@Override
protected Query applyArrayLiteral(Reference reference, Literal arrayLiteral, Context context)
throws IOException {
// col < ANY ([1,2,3]) --> or(col<1, col<2, col<3)
BooleanQuery booleanQuery = new BooleanQuery();
booleanQuery.setMinimumNumberShouldMatch(1);
for (Object value : toIterable(arrayLiteral.value())) {
booleanQuery.add(
inverseRangeQuery.toQuery(reference, reference.valueType(), value),
BooleanClause.Occur.SHOULD);
}
return booleanQuery;
}
@Override
public Query rewrite(IndexReader reader) {
if (termArrays.size() == 1) { // optimize one-term case
Term[] terms = termArrays.get(0);
BooleanQuery boq = new BooleanQuery(true);
for (int i = 0; i < terms.length; i++) {
boq.add(new TermQuery(terms[i]), BooleanClause.Occur.SHOULD);
}
boq.setBoost(getBoost());
return boq;
} else {
return this;
}
}
protected Query like(Operation<?> operation, QueryMetadata metadata) {
verifyArguments(operation);
Path<?> path = getPath(operation.getArg(0));
String field = toField(path);
String[] terms = convert(path, operation.getArg(1));
if (terms.length > 1) {
BooleanQuery bq = new BooleanQuery();
for (String s : terms) {
bq.add(new WildcardQuery(new Term(field, "*" + s + "*")), Occur.MUST);
}
return bq;
}
return new WildcardQuery(new Term(field, terms[0]));
}
protected Query endsWith(Operation<?> operation, QueryMetadata metadata, boolean ignoreCase) {
verifyArguments(operation);
Path<?> path = getPath(operation.getArg(0));
String field = toField(path);
String[] terms = convertEscaped(path, operation.getArg(1), metadata);
if (terms.length > 1) {
BooleanQuery bq = new BooleanQuery();
for (int i = 0; i < terms.length; ++i) {
String s = i == terms.length - 1 ? "*" + terms[i] : "*" + terms[i] + "*";
bq.add(new WildcardQuery(new Term(field, s)), Occur.MUST);
}
return bq;
}
return new WildcardQuery(new Term(field, "*" + terms[0]));
}
@Override
public Query apply(Function parent, Function inner, Context context) throws IOException {
FunctionLiteralPair outerPair = new FunctionLiteralPair(parent);
if (!outerPair.isValid()) {
return null;
}
Query query = getQuery(inner, context);
if (query == null) return null;
Boolean negate = !(Boolean) outerPair.input().value();
if (negate) {
BooleanQuery booleanQuery = new BooleanQuery();
booleanQuery.add(query, BooleanClause.Occur.MUST_NOT);
return booleanQuery;
} else {
return query;
}
}
/** Add to an existing boolean query the More Like This query from this PriorityQueue */
private void addToQuery(PriorityQueue<ScoreTerm> q, BooleanQuery query) {
ScoreTerm scoreTerm;
float bestScore = -1;
while ((scoreTerm = q.pop()) != null) {
TermQuery tq = new TermQuery(new Term(scoreTerm.topField, scoreTerm.word));
if (boost) {
if (bestScore == -1) {
bestScore = (scoreTerm.score);
}
float myScore = (scoreTerm.score);
tq.setBoost(boostFactor * myScore / bestScore);
}
try {
query.add(tq, BooleanClause.Occur.SHOULD);
} catch (BooleanQuery.TooManyClauses ignore) {
break;
}
}
}
protected Query ne(Operation<?> operation, QueryMetadata metadata, boolean ignoreCase) {
BooleanQuery bq = new BooleanQuery();
bq.add(new BooleanClause(eq(operation, metadata, ignoreCase), Occur.MUST_NOT));
bq.add(new BooleanClause(new MatchAllDocsQuery(), Occur.MUST));
return bq;
}