/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.paimon.mergetree.lookup;

import org.apache.paimon.data.InternalRow;
import org.apache.paimon.data.serializer.RowCompactedSerializer;
import org.apache.paimon.types.RowType;

import javax.annotation.Nullable;

import java.util.function.Function;

/** A {@link LookupSerializerFactory} using {@link RowCompactedSerializer}. */
public class DefaultLookupSerializerFactory implements LookupSerializerFactory {

    @Override
    public String version() {
        return "v1";
    }

    @Override
    public Function<InternalRow, byte[]> createSerializer(RowType currentSchema) {
        RowCompactedSerializer serializer = new RowCompactedSerializer(currentSchema);
        return serializer::serializeToBytes;
    }

    @Override
    public Function<byte[], InternalRow> createDeserializer(
            String fileSerVersion, RowType currentSchema, @Nullable RowType fileSchema) {
        if (!version().equals(fileSerVersion)) {
            throw new UnsupportedOperationException();
        }
        if (fileSchema != null && !fileSchema.equalsIgnoreNullable(currentSchema)) {
            throw new UnsupportedOperationException();
        }
        RowCompactedSerializer serializer = new RowCompactedSerializer(currentSchema);
        return serializer::deserialize;
    }
}
