feat(base.collection): method for finding all indexes of list items t…

…hat match a predicate [skip ci]
auioc · Oct 11, 2022 · 3c5e67c · 3c5e67c
1 parent 3b4d23f
commit 3c5e67c
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/main/java/org/auioc/mcmod/arnicalib/base/collection/ListUtils.java b/src/main/java/org/auioc/mcmod/arnicalib/base/collection/ListUtils.java
@@ -2,6 +2,7 @@
 
 import java.util.List;
 import java.util.function.Predicate;
+import java.util.stream.IntStream;
 import org.apache.commons.lang3.Validate;
 
 public class ListUtils {
@@ -29,4 +30,11 @@ public static <T> int lastIndexOf(List<T> list, Predicate<T> predicate) {
         return -1;
     }
 
+    public <T> int[] allIndexesOf(List<T> list, Predicate<T> predicate) {
+        return IntStream
+            .range(0, list.size())
+            .filter((i) -> predicate.test(list.get(i)))
+            .toArray();
+    }
+
 }