001    /**
002    The contents of this file are subject to the Mozilla Public License Version 1.1 
003    (the "License"); you may not use this file except in compliance with the License. 
004    You may obtain a copy of the License at http://www.mozilla.org/MPL/ 
005    Software distributed under the License is distributed on an "AS IS" basis, 
006    WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the 
007    specific language governing rights and limitations under the License. 
008    
009    The Original Code is "TrimLeadingWhitespaceRule.java".  Description: 
010    "Performs no validation but removes leading whitespace in the correct() method." 
011    
012    The Initial Developer of the Original Code is University Health Network. Copyright (C) 
013    2004.  All Rights Reserved. 
014    
015    Contributor(s): ______________________________________. 
016    
017    Alternatively, the contents of this file may be used under the terms of the 
018    GNU General Public License (the  ?GPL?), in which case the provisions of the GPL are 
019    applicable instead of those above.  If you wish to allow use of your version of this 
020    file only under the terms of the GPL and not to allow others to use your version 
021    of this file under the MPL, indicate your decision by deleting  the provisions above 
022    and replace  them with the notice and other provisions required by the GPL License.  
023    If you do not delete the provisions above, a recipient may use your version of 
024    this file under either the MPL or the GPL. 
025    */
026    package ca.uhn.hl7v2.validation.impl;
027    
028    import ca.uhn.hl7v2.validation.PrimitiveTypeRule;
029    
030    /**
031     * Performs no validation but removes leading whitespace in the correct() method.
032     *   
033     * @author <a href="mailto:bryan.tripp@uhn.on.ca">Bryan Tripp</a>
034     * @version $Revision: 1.1 $ updated on $Date: 2007/02/19 02:24:40 $ by $Author: jamesagnew $
035     */
036    public class TrimLeadingWhitespace implements PrimitiveTypeRule {
037    
038        /** 
039         * Removes leading whitespace. 
040         * 
041         * @see ca.uhn.hl7v2.validation.PrimitiveTypeRule#correct(java.lang.String)
042         */
043        public String correct(String value) {
044            String trmValue = null;
045            if (value != null) {
046                char[] stringChr = value.toCharArray();
047                for (int i=0; i < stringChr.length && trmValue == null; i++){
048                    if (!Character.isWhitespace(stringChr[i])){
049                        trmValue = String.valueOf(stringChr,i,(stringChr.length - i));
050                    }
051                }
052            }
053            return trmValue;
054        }
055    
056        /** 
057         * Returns true. 
058         * @see ca.uhn.hl7v2.validation.PrimitiveTypeRule#test(java.lang.String)
059         */
060        public boolean test(String value) {
061            return true;
062        }
063    
064        /** 
065         * @see ca.uhn.hl7v2.validation.Rule#getDescription()
066         */
067        public String getDescription() {
068            return "Leading whitespace removed";
069        }
070    
071        /** 
072         * @see ca.uhn.hl7v2.validation.Rule#getSectionReference()
073         */
074        public String getSectionReference() {
075            return null;
076        }
077    
078    }