71 lines
2.2 KiB
Kotlin
71 lines
2.2 KiB
Kotlin
package org.openrndr.extra.osc
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import com.illposed.osc.OSCMessage
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import com.illposed.osc.OSCMessageListener
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import com.illposed.osc.messageselector.OSCPatternAddressMessageSelector
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import com.illposed.osc.transport.udp.OSCPort
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import com.illposed.osc.transport.udp.OSCPortIn
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import com.illposed.osc.transport.udp.OSCPortOut
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import mu.KotlinLogging
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import java.net.InetAddress
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import java.net.PortUnreachableException
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private typealias OSCListener = Pair<OSCPatternAddressMessageSelector, OSCMessageListener>
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private val logger = KotlinLogging.logger {}
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class OSC (
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val address: InetAddress = InetAddress.getLocalHost(),
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val portIn: Int = OSCPort.DEFAULT_SC_OSC_PORT,
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val portOut: Int = portIn
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) {
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private val receiver: OSCPortIn = OSCPortIn(portIn)
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private val sender: OSCPortOut = OSCPortOut(address, portOut)
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private val listeners: MutableMap<String, OSCListener> = mutableMapOf()
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fun <T> send(channel: String, vararg message: T) {
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if (!sender.isConnected) sender.connect()
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val msg = OSCMessage(channel, message.toList())
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try {
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sender.send(msg)
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} catch (ex: PortUnreachableException) {
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logger.error(ex) { "Error: Could not connect to OUT port" }
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} catch (ex: IllegalStateException) {
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logger.error(ex) { "Error: Couldn't send message to channel: $channel" }
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}
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}
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fun listen(channel: String, callback: (List<Any>) -> Unit) {
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val selector = OSCPatternAddressMessageSelector(channel);
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val cb = OSCMessageListener {
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callback(it.message.arguments)
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}
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receiver.dispatcher.addListener(selector, cb)
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listeners[channel] = Pair(selector, cb)
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if (!receiver.isListening) this.startListening()
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}
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// Cannot be called inside a listener's callback
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fun removeListener(channel: String?) {
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val listener = listeners[channel]
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if (listener != null) {
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receiver.dispatcher.removeListener(listener.first, listener.second)
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}
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}
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private fun startListening() {
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receiver.dispatcher.isAlwaysDispatchingImmediately = true;
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receiver.startListening()
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if (receiver.isListening) logger.info("OSC is listening on port: $portIn")
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}
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}
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