readFileTest.scala

//classLoader에서 getResourceAsStream을 이용한 방식
def readFileByClassLoaderResourceAsStream(name: String) = {
	println(s"read file by ClassloaderResourceAsStream : ${name}")
	try {
		val reader = new BufferedReader(new InputStreamReader(SparkResourceTest.getClass.getClassLoader.getResourceAsStream(name)))
		var line: String = null
		while ( {
			line = reader.readLine();
			line != null
		}) {
			println(s"file line : ${line}")
		}
		println("after read file")
	} catch {
		case e: Exception => println(s"getClass file read error : ${e}")
	}
}

//classLoader에서 getResource을 이용한 방식
def readFileByClassLoaderResource(name: String) = {
	println(s"read file by ClassloaderResource : ${name}")
	try {
		val reader = Files.newBufferedReader(Paths.get(SparkResourceTest.getClass.getClassLoader.getResource(name).toURI))
		var line: String = null
		while ( {
			line = reader.readLine();
			line != null
		}) {
			println(s"file line : ${line}")
		}
		println("after read file")
	} catch {
		case e: Exception => println(s"getClass file read error : ${e}")
	}
}

//class에서 getResourceAsStream을 이용한 방식
def readFileByResourceAsStream(name: String) = {
	println(s"read file by ResourceAsStream : ${name}")
	try {
		val reader = new BufferedReader(new InputStreamReader(SparkResourceTest.getClass.getResourceAsStream(name)))
		var line: String = null
		while ( {
			line = reader.readLine();
			line != null
		}) {
			println(s"file line : ${line}")
		}
		println("after read file")
	} catch {
		case e: Exception => println(s"getClass file read error : ${e}")
	}
}

//class에서 getResource을 이용한 방식
def readFileByResource(name: String) = {
	println(s"read file by Resource : ${name}")
	try {
		val reader = Files.newBufferedReader(Paths.get(SparkResourceTest.getClass.getResource(name).toURI))
		var line: String = null
		while ( {
			line = reader.readLine();
			line != null
		}) {
			println(s"file line : ${line}")
		}
		println("after read file")
	} catch {
		case e: Exception => println(s"getClass file read error : ${e}")
	}
}