/*
- * Copyright (C) 2016 Cho-Time GmbH
+ * Copyright (C) 2016 - 2018 Free Software Foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
/**
* An utilities class for JSF
* <p>
- * @author Roland Haeder<rhaeder@cho-time.de>
+ * @author Roland Häder<roland@mxchange.org>
*/
public class FacesUtils {
return baseUrl;
}
+ /**
+ * Compares both string with null-safety. This method is based on the
+ * example from
+ * https://codereview.stackexchange.com/questions/20191/comparing-two-strings-which-could-be-null-or-blank-in-a-comparator
+ * <p>
+ * @param str0 First string
+ * @param str1 Second string
+ * <p>
+ * @return Comparison value, 0 means equals, -1 means str0 smaller str2 and
+ * 2 means str0 bigger str2
+ */
+ @SuppressWarnings ("null")
+ public static int comareTo (final String str0, final String str1) {
+ // Check both strings for null and empty
+ boolean isStr0Empty = (str0 == null || str0.isEmpty());
+ boolean isStr1Empty = (str1 == null || str1.isEmpty());
+
+ // Check conditions
+ if (isStr0Empty && isStr1Empty) {
+ return 0;
+ } else if (isStr0Empty) {
+ return -1;
+ } else if (isStr1Empty) {
+ return 1;
+ }
+
+ // Compare both
+ return str0.compareTo(str1);
+ }
+
+ /**
+ * Compares both string with null-safety, ignoring case-sensitivity. This
+ * method is based on the example from
+ * https://codereview.stackexchange.com/questions/20191/comparing-two-strings-which-could-be-null-or-blank-in-a-comparator
+ * <p>
+ * @param str0 First string
+ * @param str1 Second string
+ * <p>
+ * @return Comparison value, 0 means equals, -1 means str0 smaller str2 and
+ * 2 means str0 bigger str2
+ */
+ @SuppressWarnings ("null")
+ public static int comareToIgnoreCase (final String str0, final String str1) {
+ // Check both strings for null and empty
+ boolean isStr0Empty = (str0 == null || str0.isEmpty());
+ boolean isStr1Empty = (str1 == null || str1.isEmpty());
+
+ // Check conditions
+ if (isStr0Empty && isStr1Empty) {
+ return 0;
+ } else if (isStr0Empty) {
+ return -1;
+ } else if (isStr1Empty) {
+ return 1;
+ }
+
+ // Compare both
+ return str0.compareToIgnoreCase(str1);
+ }
+
/**
* No instances from this class are required
*/