refactor(#18): Redesign core simulation API

This change contains the redesign of the core simulation API and
provides a cleaner interface for developing simulation models for the
users.

Closes #18

1 files changed, 23 insertions, 0 deletions

diff --git a/opendc-stdlib/src/main/kotlin/com/atlarge/opendc/model/topology/Bootstrap.kt b/opendc-stdlib/src/main/kotlin/com/atlarge/opendc/model/topology/Bootstrap.kt
new file mode 100644
index 00000000..e0b54a28
--- /dev/null
+++ b/opendc-stdlib/src/main/kotlin/com/atlarge/opendc/model/topology/Bootstrap.kt
@@ -0,0 +1,23 @@
+package com.atlarge.opendc.model.topology
+
+import com.atlarge.opendc.simulator.Bootstrap
+import com.atlarge.opendc.simulator.Entity
+
+/**
+ * Create a [Bootstrap] procedure for the given [Topology].
+ *
+ * @return A apply procedure for the topology.
+ */
+fun <T : Topology> T.bootstrap(): Bootstrap<T> = Bootstrap.create { ctx ->
+    forEach { ctx.register(it) }
+    listeners += object : TopologyListener {
+        override fun Topology.onNodeAdded(node: Entity<*, Topology>) {
+            ctx.register(node)
+        }
+
+        override fun Topology.onNodeRemoved(node: Entity<*, Topology>) {
+            ctx.deregister(node)
+        }
+    }
+    this
+}