io.stargate.sgv2.api.common.cql.ExpressionUtils Maven / Gradle / Ivy
/*
* Copyright The Stargate Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.stargate.sgv2.api.common.cql;
import com.bpodgursky.jbool_expressions.And;
import com.bpodgursky.jbool_expressions.Expression;
import com.bpodgursky.jbool_expressions.Or;
import java.util.List;
/**
* Convenience expression builder
*
* when construct jbool expression without specifying a comparator, it will use hashComparator by
* default which will cause the order of expression indeterminate, and cause JSONAPI unit tests
* failure By using this ExpressionUtils class, we pass a default comparator to keep expression
* order as it is
*/
public class ExpressionUtils {
public static And andOf(Expression... expressions) {
// expression as creation order
return And.of(expressions, (e1, e2) -> 1);
}
public static And andOf(List> expressions) {
// expression as creation order
return And.of(expressions.toArray(new Expression[expressions.size()]), (e1, e2) -> 1);
}
public static Or orOf(List> expressions) {
// expression as creation order
return Or.of(expressions.toArray(new Expression[expressions.size()]), (e1, e2) -> 1);
}
public static Or orOf(Expression... expressions) {
// expression as creation order
return Or.of(expressions, (e1, e2) -> 1);
}
public static Expression buildExpression(
List> expressions, String logicOperator) {
switch (logicOperator) {
case "$and" -> {
return andOf(expressions);
}
case "$or" -> {
return orOf(expressions);
}
default -> {
return null;
}
}
}
public static Expression[] getAsArray(Expression... expressions) {
return expressions;
}
}