org.apache.hudi.expression.Comparators Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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*/
package org.apache.hudi.expression;
import org.apache.hudi.common.util.Option;
import org.apache.hudi.internal.schema.Type;
import org.apache.hudi.internal.schema.Types;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
public class Comparators {
private static final Map> COMPARATORS = Collections.unmodifiableMap(
new HashMap>() {
{
put(Types.BooleanType.get(), Comparator.naturalOrder());
put(Types.IntType.get(), Comparator.naturalOrder());
put(Types.LongType.get(), Comparator.naturalOrder());
put(Types.FloatType.get(), Comparator.naturalOrder());
put(Types.DoubleType.get(), Comparator.naturalOrder());
put(Types.DateType.get(), Comparator.naturalOrder());
put(Types.TimeType.get(), Comparator.naturalOrder());
put(Types.TimestampType.get(), Comparator.naturalOrder());
put(Types.StringType.get(), Comparator.naturalOrder());
put(Types.UUIDType.get(), Comparator.naturalOrder());
}
});
public static Comparator forType(Type.PrimitiveType type) {
return (Comparator) Option.ofNullable(COMPARATORS.get(type))
.orElseThrow(() -> new UnsupportedOperationException("The desired type " + type + " doesn't support comparator yet"));
}
}