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/*
 * 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.prestosql.plugin.kafka.schema;

import io.prestosql.plugin.kafka.KafkaTableHandle;

import java.util.Optional;

public abstract class AbstractContentSchemaReader
        implements ContentSchemaReader
{
    @Override
    public final Optional readKeyContentSchema(KafkaTableHandle tableHandle)
    {
        return readSchema(tableHandle.getKeyDataSchemaLocation(), tableHandle.getKeySubject());
    }

    @Override
    public final Optional readValueContentSchema(KafkaTableHandle tableHandle)
    {
        return readSchema(tableHandle.getMessageDataSchemaLocation(), tableHandle.getMessageSubject());
    }

    protected abstract Optional readSchema(Optional dataSchemaLocation, Optional subject);
}