/*
* Copyright 2016-2017 the original author or authors.
*
* 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 org.springframework.integration.mongodb.support;
import java.util.HashSet;
import java.util.Set;
import org.bson.types.Binary;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.GenericConverter;
import org.springframework.core.serializer.support.DeserializingConverter;
import org.springframework.core.serializer.support.SerializingConverter;
import org.springframework.data.convert.ReadingConverter;
import org.springframework.data.convert.WritingConverter;
import org.springframework.messaging.Message;
/**
* A {@link GenericConverter} implementation to convert {@link Message} to
* serialized {@link byte[]} to store {@link Message} to the MongoDB.
* And vice versa - to convert {@link byte[]} from the MongoDB to the {@link Message}.
* @author Artem Bilan
* @since 4.2.10
* @deprecated since 5.0 in favor of {@link MessageToBinaryConverter} and {@link BinaryToMessageConverter}
*/
@WritingConverter
@ReadingConverter
@Deprecated
public class MongoDbMessageBytesConverter implements GenericConverter {
private final Converter<Object, byte[]> serializingConverter = new SerializingConverter();
private final Converter<byte[], Object> deserializingConverter = new DeserializingConverter();
@Override
public Set<ConvertiblePair> getConvertibleTypes() {
Set<ConvertiblePair> convertiblePairs = new HashSet<>();
convertiblePairs.add(new ConvertiblePair(Message.class, Binary.class));
convertiblePairs.add(new ConvertiblePair(Binary.class, Message.class));
return convertiblePairs;
}
@Override
public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
if (Message.class.isAssignableFrom(sourceType.getObjectType())) {
return new Binary(this.serializingConverter.convert(source));
}
else {
return this.deserializingConverter.convert(((Binary) source).getData());
}
}
}