ai.platon.pulsar.common.measure.ByteUnitConverter.kt Maven / Gradle / Ivy

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package ai.platon.pulsar.common.measure

/**
 * **See Also**
 *
 * [jscience](http://jscience.org/)
 * [github unitsofmeasurement](https://github.com/unitsofmeasurement)
 * [baeldung](https://www.baeldung.com/javax-measure)
 * [org.apache.commons.io.FileUtils](https://commons.apache.org/proper/commons-io/apidocs/org/apache/commons/io/FileUtils.html#byteCountToDisplaySize-java.math.BigInteger-)
 * */
@Deprecated("use ByteUnit instead")
object ByteUnitConverter {

    fun convert(bytes: Int, unit: String) = convert(bytes.toLong(), unit)

    fun convert(bytes: Long, unit: String): Double {
        return when (unit[0]) {
            'B' -> bytes.toDouble()
            'K' -> bytes / 1024.0
            'M' -> bytes / 1024.0 / 1024.0
            'G' -> bytes / 1024.0 / 1024.0 / 1024.0
            'T' -> bytes / 1024.0 / 1024.0 / 1024.0 / 1024.0
            else -> 0.0
        }
    }

    fun toBytes(value: Long, unit: String): Long {
        return when (unit[0]) {
            'B' -> value
            'K' -> value * 1024
            'M' -> value * 1024 * 1024
            'G' -> value * 1024 * 1024 * 1024
            'T' -> value * 1024 * 1024 * 1024 * 1024
            else -> 0L
        }
    }
}