Multiplatform plugin repository.

dataforge-context/src/commonMain/kotlin/hep/dataforge/context/PluginRepository.kt

@@ -5,13 +5,15 @@ import kotlin.reflect.KClass
 
 interface PluginFactory {
     val tag: PluginTag
-    val type: KClass<Plugin>
+    val type: KClass<out Plugin>
     fun build(meta: Meta): Plugin
 }
 
 
 expect object PluginRepository {
 
+    fun register(factory: PluginFactory)
+
     /**
      * List plugins available in the repository
      */

dataforge-context/src/jsMain/kotlin/hep/dataforge/context/PluginRepository.kt

@@ -1,11 +1,33 @@
 package hep.dataforge.context
 
+import hep.dataforge.meta.Meta
+import kotlin.reflect.KClass
+
+
 actual object PluginRepository {
+
+    private val factories: MutableSet<PluginFactory> = HashSet()
+
+    actual fun register(factory: PluginFactory) {
+        factories.add(factory)
+    }
+
+    fun <T : Plugin> register(tag: PluginTag, type: KClass<out Plugin>, constructor: (Meta) -> T) {
+        val factory = object : PluginFactory {
+            override val tag: PluginTag = tag
+            override val type: KClass<out Plugin> = type
+
+            override fun build(meta: Meta): Plugin = constructor(meta)
+
+        }
+        register(factory)
+    }
+
+    inline fun <reified T : Plugin> register(tag: PluginTag, noinline constructor: (Meta) -> T) =
+            register(tag, T::class, constructor)
+
     /**
      * List plugins available in the repository
      */
-    actual fun list(): Sequence<PluginFactory> {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
+    actual fun list(): Sequence<PluginFactory> = factories.asSequence()
 }

dataforge-context/src/jvmMain/kotlin/hep/dataforge/context/PluginRepository.kt

@@ -1,9 +1,17 @@
 package hep.dataforge.context
 
 actual object PluginRepository {
+
+    private val factories: MutableSet<PluginFactory> = HashSet()
+
+    actual fun register(factory: PluginFactory) {
+        factories.add(factory)
+    }
+
     /**
      * List plugins available in the repository
      */
-    actual fun list(): Sequence<PluginFactory> = Global.services(PluginFactory::class)
+    actual fun list(): Sequence<PluginFactory> =
+            factories.asSequence() + Global.services(PluginFactory::class)
 
 }