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• Brotli4jCompressor.kt

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io.javalin.compression.Brotli4jCompressor.kt Maven / Gradle / Ivy

package io.javalin.compression


import com.aayushatharva.brotli4j.encoder.BrotliOutputStream
import com.aayushatharva.brotli4j.encoder.Encoder
import java.io.OutputStream

/** @param level Compression level. Higher yields better (but slower) compression. Range 0..11, default = 4 */
class Brotli4jCompressor(val level: Int) : Compressor {
    init {
        require(level in 0..11) { "Valid range for parameter level is 0 to 11" }
    }

    override fun encoding(): String = CompressionType.BR.typeName
    override fun extension(): String = CompressionType.BR.extension
    override fun compress(out: OutputStream): OutputStream = LeveledBrotli4jStream(out, level)
}

class LeveledBrotli4jStream(out: OutputStream, level: Int) :
    BrotliOutputStream(out, Encoder.Parameters().setQuality(level))