StringUtil.java

/*******************************************************************************
 * Mission Control Technologies, Copyright (c) 2009-2012, United States Government
 * as represented by the Administrator of the National Aeronautics and Space 
 * Administration. All rights reserved.
 *
 * The MCT platform is licensed under the Apache License, Version 2.0 (the 
 * "License"); you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
 * License for the specific language governing permissions and limitations under 
 * the License.
 *
 * MCT includes source code licensed under additional open source licenses. See 
 * the MCT Open Source Licenses file included with this distribution or the About 
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 *******************************************************************************/
package gov.nasa.arc.mct.util;

/**
 * String utility helper.
 */
public class StringUtil {
    
    /**
     * Checks whether the string is empty or not.
     * @param str - the string to check for
     * @return boolean - whether string is empty or not.
     */
    public static boolean isEmpty(String str) {
        return (str == null) || (str.isEmpty());
    }

    /**
     * Compares two strings.
     * @param string1 - first string to compare to.
     * @param string2 - second string to compare to.
     * @return boolean - comparision flag.
     */
    public static boolean compare(String string1, String string2) {
    	return (string1 != null && string1.equals(string2)) ||
    	       (string1 == null && string2 == null);
    }
}