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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.plugins.context.schema.avro;
import java.util.List;
import org.apache.avro.Schema;
import org.apache.avro.generic.GenericData.EnumSymbol;
/**
* Object mapper for enums, uses default behaviour except for a specific default constructor
* implementation.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public class AvroEnumObjectMapper extends AvroDirectObjectMapper {
/*
* (non-Javadoc)
*
* @see org.onap.policy.apex.plugins.context.schema.avro.AvroObjectMapper#createNewinstance(org.
* apache.avro.Schema)
*/
@Override
public Object createNewInstance(final Schema avroSchema) {
// Initialize the ENUM to the first ENUM symbol on the list
final List<String> enumSymbols = avroSchema.getEnumSymbols();
// Check if any ENUM symbols have been defined
if (enumSymbols == null || enumSymbols.isEmpty()) {
return null;
}
return new EnumSymbol(avroSchema, enumSymbols.get(0));
}
}
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