Provides simplified methods to create apex page messages

MessageUtil.cls

/**
 * Provides simplified methods to create apex page messages
 *
 * @author Gary Marsh
 * @since  2014-02-27
 */
public class MessageUtil {

	/**
	 * [addConfirm description]
	 * @param message [description]
	 */
    public static void addConfirm(String message) {
    	addMessage(ApexPages.Severity.CONFIRM, message);
    }

    /**
     * [addError description]
     * @param message [description]
     */
    public static void addError(String message) {
        addMessage(ApexPages.Severity.ERROR, message);
    }

    /**
     * [addError description]
     * @param ex [description]
     */
    public static void addError(Exception ex) {
    	addError(String.valueOf(ex));
    }

    /**
     * [addError description]
     * @param ex      [description]
     * @param message [description]
     */
    public static void addError(Exception ex, String message) {
    	addError(message + ' - ' + String.valueOf(ex));
    }

    /**
     * [addFatal description]
     * @param message [description]
     */
    public static void addFatal(String message) {
    	addMessage(ApexPages.Severity.FATAL, message);
    }

    /**
     * [addFatal description]
     * @param ex [description]
     */
    public static void addFatal(Exception ex) {
    	addFatal(String.valueOf(ex));
    }

    /**
     * [addFatal description]
     * @param ex      [description]
     * @param message [description]
     */
    public static void addFatal(Exception ex, String message) {
    	addFatal(message + ' - ' + String.valueOf(ex));
    }

    /**
     * [addInfo description]
     * @param message [description]
     */
    public static void addInfo(String message) {
    	addMessage(ApexPages.Severity.INFO, message);
    }

    /**
     * [addWarning description]
     * @param message [description]
     */
    public static void addWarning(String message) {
    	addMessage(ApexPages.Severity.WARNING, message);
    }

    /**
     * [addMessage description]
     * @param severity [description]
     * @param message  [description]
     */
    private static void addMessage(ApexPages.Severity severity, String message) {
        ApexPages.addMessage(new ApexPages.Message(severity, message));
    }
}

MessageUtil.cls-meta.xml

<?xml version="1.0" encoding="UTF-8"?>
<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>29.0</apiVersion>
    <status>Active</status>
</ApexClass>