init

src/main/kotlin/database/DatabaseFactory.kt

@@ -0,0 +1,38 @@
+package database
+
+import config.EnvConfig
+import com.zaxxer.hikari.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.jetbrains.exposed.sql.*
+import org.jetbrains.exposed.sql.transactions.transaction
+
+object DatabaseFactory {
+
+    private val envConfig = EnvConfig()
+    private val dbUrl = envConfig.dbJdbc
+    private val dbUser = envConfig.dbUsername
+    private val dbPassword = envConfig.dbPassowrd
+
+    fun init() {
+        Database.connect(hikari())
+    }
+
+    private fun hikari(): HikariDataSource {
+        val config = HikariConfig()
+        config.driverClassName = "org.postgresql.Driver"
+        config.jdbcUrl = dbUrl
+        config.username = dbUser
+        config.password = dbPassword
+        config.maximumPoolSize = 3
+        config.isAutoCommit = false
+        config.transactionIsolation = "TRANSACTION_REPEATABLE_READ"
+        config.validate()
+        return HikariDataSource(config)
+    }
+
+    suspend fun <T> dbQuery(block: () -> T): T =
+        withContext(Dispatchers.IO) {
+            transaction { block() }
+        }
+}

src/main/kotlin/database/dao/SampleObjects.kt

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+package database.dao
+
+import org.jetbrains.exposed.dao.id.IntIdTable
+import org.jetbrains.exposed.sql.*
+import org.jetbrains.exposed.sql.`java-time`.date
+import java.time.LocalDate
+
+object SampleObjects : IntIdTable() {
+    val tag: Column<String> = varchar("tag", 32)
+    val timestamp: Column<LocalDate> = date("timestamp").default(LocalDate.now())
+    val device_id: Column<Int> = integer("device_id")
+    val device_date: Column<LocalDate> = date("device_date")
+    override val primaryKey = PrimaryKey(id, name = "PK_SampleObject_Id")
+}

src/main/kotlin/database/model/SampleObject.kt

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+package database.model
+
+import database.dao.SampleObjects
+import org.jetbrains.exposed.dao.IntEntity
+import org.jetbrains.exposed.dao.IntEntityClass
+import org.jetbrains.exposed.dao.id.EntityID
+
+class SampleObject(id: EntityID<Int>): IntEntity(id) {
+    companion object : IntEntityClass<SampleObject>(SampleObjects)
+    var tag by SampleObjects.tag
+    var timestamp by SampleObjects.timestamp
+    var device_id by SampleObjects.device_id
+    var device_date by SampleObjects.device_date
+}

src/main/kotlin/database/service/ISampleObjectService.kt

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+package database.service
+
+import java.time.LocalDate
+import api.ApiObject
+
+interface ISampleObjectService{
+    fun addOne(apiObject: ApiObject)
+}

src/main/kotlin/database/service/SampleObjectService.kt

@@ -0,0 +1,18 @@
+package database.service
+
+import database.model.SampleObject
+import api.ApiObject
+import org.jetbrains.exposed.sql.transactions.transaction
+
+class SampleObjectService : ISampleObjectService {
+
+    override fun addOne(apiObject: ApiObject) {
+        transaction {
+            SampleObject.new {
+                tag = apiObject.tag
+                device_date = apiObject.device_date
+                device_id = apiObject.device_id
+            }
+        }
+    }
+}