io.netty.handler.codec.compression.ZstdOptions Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of redisson-all Show documentation
Show all versions of redisson-all Show documentation
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
/*
* Copyright 2021 The Netty Project
*
* The Netty Project licenses this file to you 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 io.netty.handler.codec.compression;
import io.netty.util.internal.ObjectUtil;
import static io.netty.handler.codec.compression.ZstdConstants.DEFAULT_COMPRESSION_LEVEL;
import static io.netty.handler.codec.compression.ZstdConstants.MIN_COMPRESSION_LEVEL;
import static io.netty.handler.codec.compression.ZstdConstants.MAX_COMPRESSION_LEVEL;
import static io.netty.handler.codec.compression.ZstdConstants.DEFAULT_BLOCK_SIZE;
import static io.netty.handler.codec.compression.ZstdConstants.MAX_BLOCK_SIZE;
/**
* {@link ZstdOptions} holds compressionLevel for
* Zstd compression.
*/
public class ZstdOptions implements CompressionOptions {
private final int blockSize;
private final int compressionLevel;
private final int maxEncodeSize;
/**
* Default implementation of {@link ZstdOptions} with{compressionLevel(int)} set to
* {@link ZstdConstants#DEFAULT_COMPRESSION_LEVEL},{@link ZstdConstants#DEFAULT_BLOCK_SIZE},
* {@link ZstdConstants#MAX_BLOCK_SIZE}
*/
static final ZstdOptions DEFAULT = new ZstdOptions(DEFAULT_COMPRESSION_LEVEL, DEFAULT_BLOCK_SIZE, MAX_BLOCK_SIZE);
/**
* Create a new {@link ZstdOptions}
*
* @param blockSize
* is used to calculate the compressionLevel
* @param maxEncodeSize
* specifies the size of the largest compressed object
* @param compressionLevel
* specifies the level of the compression
*/
ZstdOptions(int compressionLevel, int blockSize, int maxEncodeSize) {
if (!Zstd.isAvailable()) {
throw new IllegalStateException("zstd-jni is not available", Zstd.cause());
}
this.compressionLevel = ObjectUtil.checkInRange(compressionLevel,
MIN_COMPRESSION_LEVEL, MAX_COMPRESSION_LEVEL, "compressionLevel");
this.blockSize = ObjectUtil.checkPositive(blockSize, "blockSize");
this.maxEncodeSize = ObjectUtil.checkPositive(maxEncodeSize, "maxEncodeSize");
}
public int compressionLevel() {
return compressionLevel;
}
public int blockSize() {
return blockSize;
}
public int maxEncodeSize() {
return maxEncodeSize;
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy