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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 org.apache.avro.Schema;
import org.apache.avro.Schema.Type;
import org.onap.policy.apex.model.basicmodel.concepts.ApexRuntimeException;
import org.onap.policy.apex.model.basicmodel.concepts.AxKey;
/**
* The Class AvroNullableMapper handles Avro null mappings to Java null values.
*
* @author John Keeney (john.keeney@ericsson.com)
*/
public class AvroNullableMapper extends AvroDirectObjectMapper {
// The wrapped mapper for nullables
private final AvroObjectMapper wrappedMapper;
/**
* The Constructor.
*
* @param wrappedMapper the wrapped mapper
*/
public AvroNullableMapper(final AvroObjectMapper wrappedMapper) {
this.wrappedMapper = wrappedMapper;
}
/**
* {@inheritDoc}.
*/
@Override
public Class<?> getJavaClass() {
return wrappedMapper.getJavaClass();
}
/**
* {@inheritDoc}.
*/
@Override
public void init(final AxKey userKey, final Type avroType) {
wrappedMapper.init(userKey, avroType);
}
/**
* {@inheritDoc}.
*/
@Override
public Object createNewInstance(final Schema avroSchema) {
return wrappedMapper.createNewInstance(avroSchema);
}
/**
* {@inheritDoc}.
*/
@Override
public Type getAvroType() {
return Schema.Type.UNION;
}
/**
* {@inheritDoc}.
*/
@Override
public Object mapFromAvro(final Object avroObject) {
if (avroObject == null) {
return null;
} else {
return wrappedMapper.mapFromAvro(avroObject);
}
}
/**
* {@inheritDoc}.
*/
@Override
public Object mapToAvro(final Object object) {
if (object == null) {
return null;
} else {
throw new ApexRuntimeException("Unions/Nullable is not supported in output event ... Coming soon!");
}
}
}
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