spring-data-redis RedisSerializerToSerializationPairAdapter 源码
spring-data-redis RedisSerializerToSerializationPairAdapter 代码
文件路径：/src/main/java/org/springframework/data/redis/serializer/RedisSerializerToSerializationPairAdapter.java
/*
* Copyright 2017-2022 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
*
* https://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.data.redis.serializer;
import java.nio.ByteBuffer;
import org.springframework.data.redis.serializer.RedisSerializationContext.SerializationPair;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Adapter to delegate serialization/deserialization to {@link RedisSerializer}.
*
* @author Mark Paluch
* @author Christoph Strobl
* @since 2.0
*/
class RedisSerializerToSerializationPairAdapter<T> implements SerializationPair<T> {
private final static RedisSerializerToSerializationPairAdapter<?> BYTE_BUFFER = new RedisSerializerToSerializationPairAdapter<>(
null);
private final static RedisSerializerToSerializationPairAdapter<byte[]> BYTE_ARRAY = new RedisSerializerToSerializationPairAdapter<>(
RedisSerializer.byteArray());
private final DefaultSerializationPair pair;
RedisSerializerToSerializationPairAdapter(@Nullable RedisSerializer<T> serializer) {
pair = new DefaultSerializationPair<>(new DefaultRedisElementReader<>(serializer),
new DefaultRedisElementWriter<>(serializer));
}
/**
* @return the {@link RedisSerializerToSerializationPairAdapter} for {@link ByteBuffer}.
* @deprecated since 2.2. Please use {@link #byteBuffer()} instead.
*/
@SuppressWarnings("unchecked")
@Deprecated
static <T> SerializationPair<T> raw() {
return (SerializationPair) byteBuffer();
}
/**
* @return the {@link RedisSerializerToSerializationPairAdapter} for {@link byte[]}.
* @since 2.2
*/
static SerializationPair<byte[]> byteArray() {
return BYTE_ARRAY;
}
/**
* @return the {@link RedisSerializerToSerializationPairAdapter} for {@link ByteBuffer}.
* @since 2.2
*/
static SerializationPair<ByteBuffer> byteBuffer() {
return (SerializationPair) BYTE_BUFFER;
}
/**
* Create a {@link SerializationPair} from given {@link RedisSerializer}.
*
* @param redisSerializer must not be {@literal null}.
* @param <T>
* @return
*/
public static <T> SerializationPair<T> from(RedisSerializer<T> redisSerializer) {
Assert.notNull(redisSerializer, "RedisSerializer must not be null");
return new RedisSerializerToSerializationPairAdapter<>(redisSerializer);
}
@Override
public RedisElementReader<T> getReader() {
return pair.getReader();
}
@Override
public RedisElementWriter<T> getWriter() {
return pair.getWriter();
}
}
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