[LANG-974] New StringUtils Method defaultIfNotIn(String, String, String ...)

• Type: Wish
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 3.2.1
• Component/s: lang.*
• Assignee: Unassigned
• Reporter: Stephan Knitelius
• Created: 13/Feb/14 08:45
• Updated: 04/Nov/16 18:51
• Resolved: 04/Nov/16 18:51

Description

Example use case:
If a Method expects values that should only consist of a certain set such as "0" and "1", and any Invalid String should be defaulted to "0".

Possible Solution:

  public static String defaultIfNotIn(final String str, final String defaultString, String... validStrings) {
    if (str == null) {
      return defaultString;
    }
    for (final String validString : validStrings) {
      if (validString.equals(str)) {
        return str;
      }
    }
    return defaultString;
  }