repeatOnFailure

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## 0.8.5
 
+* `Common`:
+    * `repeatOnFailure`
+
 ## 0.8.4
 
 * `Ktor`:

common/src/commonMain/kotlin/dev/inmo/micro_utils/common/RepeatOnFailure.kt

@@ -0,0 +1,21 @@
+package dev.inmo.micro_utils.common
+
+/**
+ * Executes the given [action] until getting of successful result specified number of [times].
+ *
+ * A zero-based index of current iteration is passed as a parameter to [action].
+ */
+inline fun <R> repeatOnFailure(
+    times: Int,
+    crossinline onEachFailure: (Throwable) -> Unit = {},
+    crossinline action: (Int) -> R
+): Optional<R> {
+    repeat(times) {
+        runCatching {
+            action(it)
+        }.onFailure(onEachFailure).onSuccess {
+            return Optional.presented(it)
+        }
+    }
+    return Optional.absent()
+}