001    /*
002     * Copyright 2011 The Kuali Foundation.
003     * 
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     * 
008     * http://www.opensource.org/licenses/ecl2.php
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.kuali.kfs.sys.web;
017    
018    import java.util.regex.Pattern;
019    
020    import org.apache.commons.lang.StringUtils;
021    
022    /**
023     * A utility class which holds functions that can be used as JSP functions.
024     */
025    public class WebUtilities {
026        /**
027         * Converts a property name so that it is correct for the purposes of populating a business object
028         * in the maintenance framework - basically by changing "document.oldMaintainableObject.businessObject" to 
029         * "document.oldMaintainableObject" and doing a similar operation for "document.newMaintainableObject.businessObject"
030         * @param propertyName the property name to fix
031         * @return the corrected version of the property name
032         */
033        public static String renamePropertyForMaintenanceFramework(String propertyName) {
034            if (propertyName == null) {
035                return null;
036            }
037            Pattern oldMaintainablePattern = Pattern.compile("^document\\.oldMaintainableObject\\.businessObject\\.");
038            if (oldMaintainablePattern.matcher(propertyName).find()) {
039                return propertyName.replaceFirst("^document\\.oldMaintainableObject\\.businessObject\\.", "document.oldMaintainableObject.");
040            }
041            Pattern newMaintainablePattern = Pattern.compile("^document\\.newMaintainableObject\\.businessObject\\.");
042            if (newMaintainablePattern.matcher(propertyName).find()) {
043                return propertyName.replaceFirst("^document\\.newMaintainableObject\\.businessObject\\.", "document.newMaintainableObject.");
044            }
045            return propertyName;
046        }
047        
048        /**
049         * Determines if the given value matches the given pattern
050         * @param value the value which is matching the pattern
051         * @param pattern the Java regular expression pattern to match against
052         * @return true if the value matches; false otherwise
053         * @see java.util.regex.Pattern
054         */
055        public static boolean matchesPattern(String value, String pattern) {
056            return (StringUtils.isBlank(value)) ? false : value.matches(pattern);
057        }
058    }