From 98fae535e7f1f44e429457657ab82048c2a0fca0 Mon Sep 17 00:00:00 2001
From: JFronny <git@akbvopenfl1.hopto.org>
Date: Sat, 13 Apr 2024 13:23:04 +0200
Subject: [PATCH] feat(commons): utility interface for attaching instances of
 an object to contexts

---
 .../commons/concurrent/WithScopedValue.java   | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 commons/src/main/java/io/gitlab/jfronny/commons/concurrent/WithScopedValue.java

diff --git a/commons/src/main/java/io/gitlab/jfronny/commons/concurrent/WithScopedValue.java b/commons/src/main/java/io/gitlab/jfronny/commons/concurrent/WithScopedValue.java
new file mode 100644
index 0000000..d4dc3e3
--- /dev/null
+++ b/commons/src/main/java/io/gitlab/jfronny/commons/concurrent/WithScopedValue.java
@@ -0,0 +1,25 @@
+package io.gitlab.jfronny.commons.concurrent;
+
+import io.gitlab.jfronny.commons.throwable.Assume;
+
+public interface WithScopedValue<T> {
+    ScopedValue<T> getAttached();
+    T self();
+
+    default <TEx1 extends Throwable, TEx2 extends Throwable> void withContext(Action<TEx1, TEx2> action) throws TEx1, TEx2 {
+        Assume.<TEx1>reintroduce();
+        Assume.<TEx2>reintroduce(() -> ScopedValue.runWhere(getAttached(), self(), Assume.isSafe(action::run)));
+    }
+    default <T, TEx1 extends Throwable, TEx2 extends Throwable> T withContext(Returnable<T, TEx1, TEx2> action) throws TEx1, TEx2 {
+        Assume.<TEx1>reintroduce();
+        return Assume.<T, TEx2>reintroduce(() -> ScopedValue.getWhere(getAttached(), self(), Assume.isSafe(action::run)));
+    }
+
+    interface Returnable<T, TEx1 extends Throwable, TEx2 extends Throwable> {
+        T run() throws TEx1, TEx2;
+    }
+
+    interface Action<TEx1 extends Throwable, TEx2 extends Throwable> {
+        void run() throws TEx1, TEx2;
+    }
+}