CollectLogs8.kt

   @Throws(IOException::class)
    private fun ensureLogSize(logFile: File) {
        if (logFile.length() < maxLogSize) return

        // We remove first 25% part of logs
        val startIndex = logFile.length() / 4

        val randomAccessFile = RandomAccessFile(logFile, "r")
        randomAccessFile.seek(startIndex)

        val into = ByteArrayOutputStream()

        val buf = ByteArray(4096)
        var n: Int
        while (true) {
            n = randomAccessFile.read(buf)
            if (n < 0) break
            into.write(buf, 0, n)
        }

        randomAccessFile.close()

        val outputStream = FileOutputStream(logFile)
        into.writeTo(outputStream)

        outputStream.close()
        into.close()
    }