[empire-db] branch master updated: EMPIREDB-354 add String truncate method to StringUtils.

[do...@apache.org]

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doebele pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/empire-db.git


The following commit(s) were added to refs/heads/master by this push:
     new 1a188c9  EMPIREDB-354 add String truncate method to StringUtils.
1a188c9 is described below

commit 1a188c92627429b0e4ec625603e45ff5a451cd47
Author: Rainer Döbele <do...@apache.org>
AuthorDate: Wed Sep 29 16:37:45 2021 +0200

    EMPIREDB-354
    add String truncate method to StringUtils.
---
 .../main/java/org/apache/empire/commons/StringUtils.java | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java b/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java
index 9b7a20a..edd9cde 100644
--- a/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java
+++ b/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java
@@ -568,4 +568,20 @@ public class StringUtils
         return start.toLowerCase()+s.substring(count);
     }
     
+    /**
+     * truncates a string to a maximum number of chars 
+     * @param s the source string
+     * @param the maximum number of chars
+     * @return the result string
+     */
+    public static String truncate(String s, int maxChar)
+    {
+        if (isEmpty(s))
+            return StringUtils.EMPTY;
+        if (maxChar<1 || s.length()<maxChar)
+            return s;
+        // trunc
+        return s.substring(0, maxChar);
+    }
+    
 }