Hi folks,
I have written some codes for custom receiver to get data from MySQL db.
Belowed code:
class CustomReceiver(url: String, username: String, password: String)
extends Receiver[String](StorageLevel.MEMORY_AND_DISK_2) with Logging {
case class customer(c_sk: Int, c_add_sk: Int, c_first: String)
def onStart() {
// Start the thread that receives data over a connection
new Thread("MySQL Receiver") {
override def run() { receive() }
}.start()
}
def onStop() {
// There is nothing much to do as the thread calling receive()
// is designed to stop by itself isStopped() returns false
}
private def receive() {
Class.forName("com.mysql.jdbc.Driver").newInstance()
val con = DriverManager.getConnection(url, username, password)
}
while executing this code i am getting an error: Exception in thread "main"
java.lang.IllegalArgumentException: requirement failed: No output operations
registered, so nothing to execute
Please help me to solve my problem ?
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