migrate logs to log4j

Author: paulorb

src/main/kotlin/ModbusPacketDecoder.kt

@@ -24,7 +24,6 @@ class ModbusPacketDecoder : ByteToMessageDecoder() {
             val st = String.format("%02X", `in`.getByte(i))
             print(st)
         }
-        println()
 
         if (`in`!!.readableBytes() < 6) {
             logger.debug("less than 6 bytes received, ignoring...")

src/main/kotlin/ModbusServerEventListenerReplyRandomNumbers.kt

@@ -1,20 +1,25 @@
+import org.slf4j.LoggerFactory
 import kotlin.random.Random
 
 class ModbusServerEventListenerReplyRandomNumbers : IModbusServerEventListener {
 
+    companion object {
+        val logger = LoggerFactory.getLogger("ModbusServerEventListenerReplyRandomNumbers")
+    }
+
     private fun generateRandomLogicList(numberOfRegisters: Int):  List<Boolean> {
         val mutableList = mutableListOf<Boolean>()
         for(i in 0..numberOfRegisters)
             mutableList.add(Random.nextBoolean())
-        println(mutableList.toString())
+        logger.debug(mutableList.toString())
         return mutableList
     }
 
     private fun generateRandomNumericList(numberOfRegisters: Int):  List<Short> {
         val mutableList = mutableListOf<Short>()
         for(i in 0..numberOfRegisters)
             mutableList.add(Random.nextInt(Short.MAX_VALUE.toInt()).toShort())
-        println(mutableList.toString())
+        logger.debug(mutableList.toString())
         return mutableList
     }