From 6afa1086c2f90298877727bb94a73c09641b4e07 Mon Sep 17 00:00:00 2001
From: Marc Baloup <marc.baloup@laposte.net>
Date: Sun, 14 Aug 2022 00:29:23 +0200
Subject: [PATCH] Added StringUtil#wrapParsingInt() and
 StringUtil#wrapParsingLong() methods

---
 .../fr/pandacube/lib/util/StringUtil.java     | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/pandalib-util/src/main/java/fr/pandacube/lib/util/StringUtil.java b/pandalib-util/src/main/java/fr/pandacube/lib/util/StringUtil.java
index c6c91fd..1777e95 100644
--- a/pandalib-util/src/main/java/fr/pandacube/lib/util/StringUtil.java
+++ b/pandalib-util/src/main/java/fr/pandacube/lib/util/StringUtil.java
@@ -3,6 +3,7 @@ package fr.pandacube.lib.util;
 import java.util.Arrays;
 import java.util.List;
 import java.util.function.Predicate;
+import java.util.function.UnaryOperator;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -116,4 +117,26 @@ public class StringUtil {
 				return newStr;
 		}
 	}
+
+
+	/**
+	 * Wraps the provided {@link UnaryOperator} of integer into an {@link UnaryOperator} of String parsing the input
+	 * string to int and converting back the return value to String.
+	 * @param operator the {@link UnaryOperator} to warp.
+	 * @return an {@link UnaryOperator} of String.
+	 */
+	public static UnaryOperator<String> wrapParsingInt(UnaryOperator<Integer> operator) {
+		return s -> Integer.toString(operator.apply(Integer.parseInt(s)));
+	}
+
+	/**
+	 * Wraps the provided {@link UnaryOperator} of long into an {@link UnaryOperator} of String parsing the input
+	 * string to long and converting back the return value to String.
+	 * @param operator the {@link UnaryOperator} to warp.
+	 * @return an {@link UnaryOperator} of String.
+	 */
+	public static UnaryOperator<String> wrapParsingLong(UnaryOperator<Long> operator) {
+		return s -> Long.toString(operator.apply(Long.parseLong(s)));
+	}
+
 }