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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.compress;
/**
* Compression type enum.
*
* @author bratseth
*/
public enum CompressionType {
// Do not change the type->ordinal association. The gap is due to historic types no longer supported.
NONE((byte) 0),
INCOMPRESSIBLE((byte) 5),
LZ4((byte) 6),
ZSTD((byte) 7);
private final byte code;
CompressionType(byte code) {
this.code = code;
}
public byte getCode() {
return code;
}
/**
* Returns whether this type represent actually compressed data
*/
public boolean isCompressed() {
return this != NONE && this != INCOMPRESSIBLE;
}
public static CompressionType valueOf(byte value) {
switch (value) {
case ((byte) 0):
return NONE;
case ((byte) 5):
return INCOMPRESSIBLE;
case ((byte) 6):
return LZ4;
case ((byte) 7):
return ZSTD;
default:
throw new IllegalArgumentException("Unknown compression type ordinal " + value);
}
}
}
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