Add EntityCollection

src/main/kotlin/fr/postgresjson/repository/Repository.kt

@@ -0,0 +1,37 @@
+package fr.postgresjson.repository
+
+import fr.postgresjson.entity.EntityCollection
+import fr.postgresjson.entity.EntityI
+import fr.postgresjson.serializer.Serializer
+import kotlin.reflect.KClass
+
+interface RepositoryI<T, E : EntityI<T>>
+
+abstract class Repository<T, E : EntityI<T>> : RepositoryI<T, E> {
+    private val collections: MutableMap<KClass<*>, EntityCollection<Any, EntityI<Any>>> = mutableMapOf()
+
+    private inline fun <I, reified R : EntityI<I>> get(id: I): R? {
+        val collection = collections[R::class]
+        val entity = collection?.get(id!!)
+        return entity as R?
+    }
+
+    private inline fun <I, reified R : EntityI<I>> set(entity: R) {
+        if (collections[R::class] == null) {
+            collections[R::class] = EntityCollection()
+        }
+
+        collections[R::class]!!.set(entity as EntityI<Any>)
+    }
+
+    fun <T> findById(id: T): EntityI<T>? {
+        return when (val e = get(id)) {
+            null -> {
+                // TODO create Request
+                Serializer().deserialize<T, EntityI<T>>("""{"plop", "plip"}""")
+            }
+            else -> e
+
+        }
+    }
+}