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hawtio :: hawtio-insight-log

There is a newer version: 2.0-M2

package io.hawt.log.support;

public final class Objects {

    public static boolean isBlank(String text) {
        return text == null || text.trim().length() == 0;
    }

    /**
     * A helper method for comparing objects for equality while handling nulls
     */
    public static boolean equal(Object a, Object b) {
        if (a == b) {
            return true;
        }
        return a != null && b != null && a.equals(b);
    }

    /**
     * A helper method for performing an ordered comparison on the objects
     * handling nulls and objects which do not handle sorting gracefully
     *
     * @param a  the first object
     * @param b  the second object
     */
    @SuppressWarnings("unchecked")
    public static int compare(Object a, Object b) {
        if (a == b) {
            return 0;
        }
        if (a == null) {
            return -1;
        }
        if (b == null) {
            return 1;
        }
        if (a instanceof Comparable) {
            Comparable comparable = (Comparable)a;
            return comparable.compareTo(b);
        }
        int answer = a.getClass().getName().compareTo(b.getClass().getName());
        if (answer == 0) {
            answer = a.hashCode() - b.hashCode();
        }
        return answer;
    }

    public static boolean contains(String matchesText, String... values) {
        for (String v : values) {
            if (v != null && v.contains(matchesText)) {
                return true;
            }
        }
        return false;
    }
}