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Kafka Compatible Schema Registry

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/**
 * Copyright (c) 2019 - 2024 StreamNative, Inc.. All Rights Reserved.
 */
/**
 * 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.streamnative.pulsar.handlers.kop.schemaregistry.providers.avro;

import io.streamnative.pulsar.handlers.kop.schemaregistry.model.ParsedSchema;
import io.streamnative.pulsar.handlers.kop.schemaregistry.model.Schema;
import io.streamnative.pulsar.handlers.kop.schemaregistry.providers.AbstractSchemaProvider;
import java.util.Map;
import lombok.extern.slf4j.Slf4j;

@Slf4j
public class AvroSchemaProvider extends AbstractSchemaProvider {

    public static final String AVRO_VALIDATE_DEFAULTS = "avro.validate.defaults";

    private boolean validateDefaults = false;

    @Override
    public void configure(Map configs) {
        super.configure(configs);
        String validate = (String) configs.get(AVRO_VALIDATE_DEFAULTS);
        validateDefaults = Boolean.parseBoolean(validate);
    }

    @Override
    public String schemaType() {
        return AvroSchema.TYPE;
    }

    @Override
    public ParsedSchema parseSchemaOrElseThrow(Schema schema, boolean isNew, boolean normalize) {
        try {
            return new AvroSchema(
                schema.getSchema(),
                schema.getReferences(),
                resolveReferences(schema.getReferences()),
                null,
                (validateDefaults || normalize) && isNew
            );
        } catch (Exception e) {
            log.error("Could not parse Avro schema", e);
            throw e;
        }
    }
}