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shrine-medco/commons/data-commons/src/main/scala/net/shrine/slick/TestableDataSourceCreator.scala
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TestableDataSourceCreator.scala
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package net.shrine.slick
import java.io.PrintWriter
import java.sql.{Connection, DriverManager}
import java.util.logging.Logger
import javax.naming.{Context, InitialContext}
import javax.sql.DataSource
import com.typesafe.config.Config
import net.shrine.config.ConfigExtensions
/**
* @author david
* @since 1/26/16
*/
object TestableDataSourceCreator {
def dataSource(config:Config):DataSource = {
val dataSourceFrom = config.getString("dataSourceFrom")
if(dataSourceFrom == "JNDI") {
val jndiDataSourceName = config.getString("jndiDataSourceName")
val initialContext:InitialContext = new InitialContext()
val dataSource = initialContext.lookup(jndiDataSourceName).asInstanceOf[DataSource]
println(s"Datasource: $dataSource")
dataSource
}
else if (dataSourceFrom == "testDataSource") {
val testDataSourceConfig = config.getConfig("testDataSource")
val driverClassName = testDataSourceConfig.getString("driverClassName")
val url = testDataSourceConfig.getString("url")
case class Credentials(username: String,password:String)
def configToCredentials(config:Config) = new Credentials(config.getString("username"),config.getString("password"))
val credentials: Option[Credentials] = testDataSourceConfig.getOptionConfigured("credentials",configToCredentials)
//Creating an instance of the driver register it. (!) From a previous epoch, but it works.
Class.forName(driverClassName).newInstance()
object TestDataSource extends DataSource {
override def getConnection: Connection = {
credentials.fold(DriverManager.getConnection(url))(credentials =>
DriverManager.getConnection(url,credentials.username,credentials.password))
}
override def getConnection(username: String, password: String): Connection = {
DriverManager.getConnection(url, username, password)
}
//unused methods
override def unwrap[T](iface: Class[T]): T = ???
override def isWrapperFor(iface: Class[_]): Boolean = ???
override def setLogWriter(out: PrintWriter): Unit = ???
override def getLoginTimeout: Int = ???
override def setLoginTimeout(seconds: Int): Unit = ???
override def getParentLogger: Logger = ???
override def getLogWriter: PrintWriter = ???
}
TestDataSource
}
else throw new IllegalArgumentException(s"dataSourceFrom config value must be either JNDI or testDataSource, not $dataSourceFrom")
}
}
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