Basic implementation for files app

web-container-registry/src/main/java/de/nbscloud/webcontainer/registry/AppRegistry.java

@@ -0,0 +1,23 @@
+package de.nbscloud.webcontainer.registry;
+
+import org.springframework.stereotype.Component;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+@Component
+public class AppRegistry {
+    private final List<App> apps = new CopyOnWriteArrayList<>();
+
+    public void registerApp(App app) {
+        this.apps.add(app);
+
+        this.apps.sort(Comparator.comparing(App::getIndex));
+    }
+
+    public List<App> getAll() {
+        return Collections.unmodifiableList(this.apps);
+    }
+}