GlobalVariablesUtils.java example

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/*
 * The Kuali Financial System, a comprehensive financial management system for higher education.
 * 
 * Copyright 2005-2014 The Kuali Foundation
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.kuali.kfs.sys.util;

import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

import org.apache.commons.lang.StringUtils;
import org.kuali.kfs.sys.context.SpringContext;
import org.kuali.rice.core.api.config.property.ConfigurationService;
import org.kuali.rice.krad.util.ErrorMessage;
import org.kuali.rice.krad.util.GlobalVariables;
import org.kuali.rice.krad.util.MessageMap;

public class GlobalVariablesUtils {
   private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(GlobalVariablesUtils.class);

   public static List<String> extractGlobalVariableErrors() {
       List<String> result = new ArrayList<String>();

       MessageMap errorMap = GlobalVariables.getMessageMap();

       // Set<String> errorKeys = errorMap.keySet(); // deprecated
       Set<String> errorKeys = errorMap.getAllPropertiesWithErrors();
       List<ErrorMessage> errorMessages = null;
       Object[] messageParams;
       String errorKeyString;
       String errorString;

       for (String errorProperty : errorKeys) {
           // errorMessages = (List<ErrorMessage>) errorMap.get(errorProperty); // deprecated
           errorMessages = errorMap.getErrorMessagesForProperty(errorProperty);
           LOG.debug("error Messages :::: " + errorMessages.toString());
           for (ErrorMessage errorMessage : errorMessages) {
               errorKeyString = SpringContext.getBean(ConfigurationService.class).getPropertyValueAsString(errorMessage.getErrorKey());
               messageParams = errorMessage.getMessageParameters();
               LOG.debug("message parameters:::  " + messageParams);
               LOG.debug("errorKeyString :::: " + errorKeyString);
               // MessageFormat.format only seems to replace one
               // per pass, so I just keep beating on it until all are gone.
               if (StringUtils.isBlank(errorKeyString)) {
                   errorString = errorMessage.getErrorKey();
               }
               else {
                   errorString = errorKeyString;
               }
               LOG.debug(errorString);
               if (errorString.matches("^.*\\{\\d\\}.*$")) {
                   errorString = MessageFormat.format(errorString, messageParams);
               }
               result.add(errorString);
           }
       }

       // clear the stuff out of global vars, as we need to reformat it and put it back
       GlobalVariables.clear();
       return result;
   }
}