use a consumer to interact with db

src/Application.kt

@@ -1,8 +1,7 @@
 package com.kmalbz
 
-import com.google.gson.Gson
-import com.kmalbz.api.model.ApiObject
 import com.kmalbz.api.route.OutputServiceRDBServer
+import com.kmalbz.consumer.DatabaseConsumer
 import io.ktor.application.*
 import io.ktor.response.*
 import io.ktor.routing.*
@@ -12,15 +11,10 @@ import io.ktor.features.*
 import org.apache.http.HttpException
 import com.kmalbz.database.DatabaseFactory
 import com.kmalbz.database.dao.ResultObjects
-import com.kmalbz.database.service.ResultObjectService
 import io.ktor.util.KtorExperimentalAPI
 import com.rabbitmq.client.*
 import com.typesafe.config.ConfigFactory
 import io.ktor.config.HoconApplicationConfig
-import com.viartemev.thewhiterabbit.channel.*
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.GlobalScope
-import kotlinx.coroutines.launch
 import org.jetbrains.exposed.sql.SchemaUtils
 import org.jetbrains.exposed.sql.transactions.transaction
 import org.koin.ktor.ext.Koin
@@ -60,20 +54,7 @@ fun Application.module() {
     val queueName = channel.queueDeclare().queue
     channel.queueBind(queueName, rabbitExchangeName, "")
 
-    GlobalScope.launch(Dispatchers.Default) {
-        connection.channel {
-            consume(queueName) {
-                consumeMessageWithConfirm({
-                    val resultObjectService = ResultObjectService()
-                    val rawJson = String(it.body)
-                    val gson = Gson()
-                    val apiObject = gson.fromJson(rawJson,ApiObject::class.java)
-
-                    resultObjectService.addOne(apiObject)
-                })
-            }
-        }
-    }
+    channel.basicConsume(rabbitExchangeName, true, DatabaseConsumer())
 
     routing {
         install(StatusPages) {

src/consumer/DatabaseConsumer.kt

@@ -0,0 +1,35 @@
+package com.kmalbz.consumer
+
+import com.google.gson.Gson
+import com.kmalbz.api.model.ApiObject
+import com.kmalbz.database.service.ResultObjectService
+import com.rabbitmq.client.AMQP.BasicProperties
+import com.rabbitmq.client.Consumer
+import com.rabbitmq.client.Envelope
+import com.rabbitmq.client.ShutdownSignalException
+
+class DatabaseConsumer : Consumer {
+    val resultObjectService = ResultObjectService()
+
+    val gson = Gson()
+    override fun handleConsumeOk(consumerTag : String?) {
+    }
+    override fun handleCancelOk(p0 : String?) {
+        throw UnsupportedOperationException()
+    }
+    override fun handleRecoverOk(p0 : String?) {
+        throw UnsupportedOperationException()
+    }
+    override fun handleCancel(p0 : String?) {
+        throw UnsupportedOperationException()
+    }
+    override fun handleDelivery(consumerTag : String?, envelope : Envelope?, basicProperties : BasicProperties?, body : ByteArray?) {
+        val rawJson = body.toString()
+        val apiObject = gson.fromJson(rawJson, ApiObject::class.java)
+
+        resultObjectService.addOne(apiObject)
+    }
+    override fun handleShutdownSignal(p0 : String?, p1 : ShutdownSignalException?) {
+        println("got shutdown signal")
+    }
+}