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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC

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/**
 * Copyright (c) 2013-2024 Nikita Koksharov
 *
 * 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.redisson.codec;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.redisson.client.codec.BaseCodec;
import org.redisson.client.codec.Codec;
import org.redisson.client.handler.State;
import org.redisson.client.protocol.Decoder;
import org.redisson.client.protocol.Encoder;
import org.xerial.snappy.Snappy;

import java.io.IOException;

/**
 * Google's Snappy compression codec.
 * Uses inner Codec to convert object to binary stream.
 * Kryo5Codec used by default.
 * 

* Based on https://github.com/xerial/snappy-java * * Fully thread-safe. * * @see org.redisson.codec.Kryo5Codec * * @author Nikita Koksharov * */ public class SnappyCodecV2 extends BaseCodec { private final Codec innerCodec; public SnappyCodecV2() { this(new Kryo5Codec()); } public SnappyCodecV2(Codec innerCodec) { this.innerCodec = innerCodec; } public SnappyCodecV2(ClassLoader classLoader) { this(new Kryo5Codec(classLoader)); } public SnappyCodecV2(ClassLoader classLoader, SnappyCodecV2 codec) throws ReflectiveOperationException { this(copy(classLoader, codec.innerCodec)); } private final Decoder decoder = new Decoder() { @Override public Object decode(ByteBuf buf, State state) throws IOException { byte[] bytes = new byte[buf.readableBytes()]; buf.readBytes(bytes); bytes = Snappy.uncompress(bytes); ByteBuf bf = Unpooled.wrappedBuffer(bytes); try { return innerCodec.getValueDecoder().decode(bf, state); } finally { bf.release(); } } }; private final Encoder encoder = new Encoder() { @Override public ByteBuf encode(Object in) throws IOException { ByteBuf encoded = innerCodec.getValueEncoder().encode(in); byte[] bytes = new byte[encoded.readableBytes()]; encoded.readBytes(bytes); encoded.release(); byte[] res = Snappy.compress(bytes); return Unpooled.wrappedBuffer(res); } }; @Override public Decoder getValueDecoder() { return decoder; } @Override public Encoder getValueEncoder() { return encoder; } }