SafeStringUtils

SafeStringUtils.java

public class SafeStringUtils {
    public static boolean safeEquals(Object o1, Object o2) {
        return o1 != null && o1.equals(o2);
    }

    public static boolean safeEqualsIgnoreCase(String s1, String s2) {
        return s1 != null && s1.equalsIgnoreCase(s2);
    }

    public static boolean safeIsEmpty(String s) {
        return s != null && s.isEmpty();
    }

    public static boolean safeContains(String s1, CharSequence cs) {
        return !(s1 == null || cs == null) && s1.contains(cs);
    }
}