[ADDED] Properties file and config loader.

Author: hossain-khan

sample-local.properties

@@ -0,0 +1,8 @@
+## Rename this file to `local.properties`
+## These properties are loaded via `AppConfigLoader`
+# ----------------------------------------------------
+
+## Data based properties
+db_name=YourDbName
+db_username=your_db_username
+db_password=your_db_password

src/main/kotlin/dev/hossain/postgresqldelight/AppConfig.kt

@@ -0,0 +1,3 @@
+package dev.hossain.postgresqldelight
+
+data class AppConfig(val dbName: String, val dbUsername: String, val dbPassword: String)

src/main/kotlin/dev/hossain/postgresqldelight/AppConfigLoader.kt

@@ -0,0 +1,18 @@
+package dev.hossain.postgresqldelight
+
+import java.io.File
+import java.util.*
+
+class AppConfigLoader {
+    /**
+     * Loads app config from local properties file.
+     */
+    fun loadAppConfig(): AppConfig {
+        val properties = Properties().apply { load(File("local.properties").inputStream()) }
+        return AppConfig(
+            dbName = properties.getProperty("db_name"),
+            dbUsername = properties.getProperty("db_username"),
+            dbPassword = properties.getProperty("db_password"),
+        )
+    }
+}

src/main/kotlin/dev/hossain/postgresqldelight/Main.kt

@@ -1,9 +1,35 @@
 package dev.hossain.postgresqldelight
 
+import app.cash.sqldelight.db.SqlDriver
+import app.cash.sqldelight.driver.jdbc.asJdbcDriver
+import javax.sql.DataSource
+
+
 fun main(args: Array<String>) {
-    println("Hello World!")
+    println("Begin SQLDelight 2.0 with PostgreSQL Sample!")
+    val appConfigLoader = AppConfigLoader()
+    val sportsRepository = SportsRepository()
+    val dataSource: DataSource = sportsRepository.getSource(appConfigLoader.loadAppConfig())
+
+
+    val driver: SqlDriver = dataSource.asJdbcDriver()
+
+    doDatabaseThings(driver)
+}
+
+
+
+fun doDatabaseThings(driver: SqlDriver) {
+    val database = SportsDatabase(driver)
+    val playerQueries: PlayerQueries = database.playerQueries
+
+    println(playerQueries.selectAll().executeAsList())
+    // [HockeyPlayer(15, "Ryan Getzlaf")]
+
+    playerQueries.insert(player_number = 10, full_name = "Corey Perry")
+    println(playerQueries.selectAll().executeAsList())
+    // [HockeyPlayer(15, "Ryan Getzlaf"), HockeyPlayer(10, "Corey Perry")]
 
-    // Try adding program arguments via Run/Debug configuration.
-    // Learn more about running applications: https://www.jetbrains.com/help/idea/running-applications.html.
-    println("Program arguments: ${args.joinToString()}")
+    val player = HockeyPlayer(10, "Ronald McDonald")
+    playerQueries.insertFullPlayerObject(player)
 }

src/main/kotlin/dev/hossain/postgresqldelight/SportsRepository.kt

@@ -0,0 +1,21 @@
+package dev.hossain.postgresqldelight
+
+import com.zaxxer.hikari.HikariConfig
+import com.zaxxer.hikari.HikariDataSource
+import javax.sql.DataSource
+
+class SportsRepository constructor(
+
+) {
+
+    fun getSource(appConfig: AppConfig): DataSource {
+        val hikariConfig = HikariConfig()
+        // https://jdbc.postgresql.org/documentation/use/
+        hikariConfig.setJdbcUrl("jdbc:postgresql://192.168.2.32:5432/${appConfig.dbName}")
+        hikariConfig.driverClassName = "org.postgresql.Driver"
+        hikariConfig.username = appConfig.dbUsername
+        hikariConfig.password = appConfig.dbPassword
+
+        return HikariDataSource(hikariConfig)
+    }
+}