org.apache.pulsar.common.compression.CompressionCodecProvider Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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
*
* 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.apache.pulsar.common.compression;
import java.util.EnumMap;
import lombok.experimental.UtilityClass;
import org.apache.pulsar.client.api.CompressionType;
/**
* Provider of compression codecs used in Pulsar.
*
* @see CompressionCodecNone
* @see CompressionCodecLZ4
* @see CompressionCodecZLib
* @see CompressionCodecZstd
* @see CompressionCodecSnappy
*/
@UtilityClass
public class CompressionCodecProvider {
private static final EnumMap codecs;
static {
codecs = new EnumMap<>(org.apache.pulsar.common.api.proto.CompressionType.class);
codecs.put(org.apache.pulsar.common.api.proto.CompressionType.NONE, new CompressionCodecNone());
codecs.put(org.apache.pulsar.common.api.proto.CompressionType.LZ4, new CompressionCodecLZ4());
codecs.put(org.apache.pulsar.common.api.proto.CompressionType.ZLIB, new CompressionCodecZLib());
codecs.put(org.apache.pulsar.common.api.proto.CompressionType.ZSTD, new CompressionCodecZstd());
codecs.put(org.apache.pulsar.common.api.proto.CompressionType.SNAPPY, new CompressionCodecSnappy());
}
public static CompressionCodec getCompressionCodec(org.apache.pulsar.common.api.proto.CompressionType type) {
return codecs.get(type);
}
public static CompressionCodec getCompressionCodec(CompressionType type) {
return codecs.get(convertToWireProtocol(type));
}
public static org.apache.pulsar.common.api.proto.CompressionType convertToWireProtocol(
CompressionType compressionType) {
switch (compressionType) {
case NONE:
return org.apache.pulsar.common.api.proto.CompressionType.NONE;
case LZ4:
return org.apache.pulsar.common.api.proto.CompressionType.LZ4;
case ZLIB:
return org.apache.pulsar.common.api.proto.CompressionType.ZLIB;
case ZSTD:
return org.apache.pulsar.common.api.proto.CompressionType.ZSTD;
case SNAPPY:
return org.apache.pulsar.common.api.proto.CompressionType.SNAPPY;
default:
throw new RuntimeException("Invalid compression type");
}
}
public static CompressionType convertFromWireProtocol(
org.apache.pulsar.common.api.proto.CompressionType compressionType) {
switch (compressionType) {
case NONE:
return CompressionType.NONE;
case LZ4:
return CompressionType.LZ4;
case ZLIB:
return CompressionType.ZLIB;
case ZSTD:
return CompressionType.ZSTD;
case SNAPPY:
return CompressionType.SNAPPY;
default:
throw new RuntimeException("Invalid compression type");
}
}
}