Source Code Cross Referenced for ClassFieldValueConvertor.java in  » Development » ivatamasks » com » ivata » mask » field » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Development » ivatamasks » com.ivata.mask.field 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 2001 - 2005 ivata limited.
003:         * All rights reserved.
004:         * -----------------------------------------------------------------------------
005:         * ivata masks may be redistributed under the GNU General Public
006:         * License as published by the Free Software Foundation;
007:         * version 2 of the License.
008:         *
009:         * These programs are free software; you can redistribute them and/or
010:         * modify them under the terms of the GNU General Public License
011:         * as published by the Free Software Foundation; version 2 of the License.
012:         *
013:         * These programs are distributed in the hope that they will be useful,
014:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
015:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016:         *
017:         * See the GNU General Public License in the file LICENSE.txt for more
018:         * details.
019:         *
020:         * If you would like a copy of the GNU General Public License write to
021:         *
022:         * Free Software Foundation, Inc.
023:         * 59 Temple Place - Suite 330
024:         * Boston, MA 02111-1307, USA.
025:         *
026:         *
027:         * To arrange commercial support and licensing, contact ivata at
028:         *                  http://www.ivata.com/contact.jsp
029:         * -----------------------------------------------------------------------------
030:         * $Log: ClassFieldValueConvertor.java,v $
031:         * Revision 1.7  2005/10/11 18:55:29  colinmacleod
032:         * Fixed some checkstyle and javadoc issues.
033:         *
034:         * Revision 1.6  2005/10/02 14:06:32  colinmacleod
035:         * Added/improved log4j logging.
036:         *
037:         * Revision 1.5  2005/09/14 12:51:52  colinmacleod
038:         * Added serialVersionUID.
039:         *
040:         * Revision 1.4  2005/04/11 12:27:01  colinmacleod
041:         * Added preliminary support for filters.
042:         * Added FieldValueConvertor factor interface
043:         * to split off value convertors for reuse.
044:         *
045:         * Revision 1.3  2005/04/09 18:04:14  colinmacleod
046:         * Changed copyright text to GPL v2 explicitly.
047:         *
048:         * Revision 1.2  2005/01/06 22:13:21  colinmacleod
049:         * Moved up a version number.
050:         * Changed copyright notices to 2005.
051:         * Updated the documentation:
052:         *   - started working on multiproject:site docu.
053:         *   - changed the logo.
054:         * Added checkstyle and fixed LOADS of style issues.
055:         * Added separate thirdparty subproject.
056:         * Added struts (in web), util and webgui (in webtheme) from ivata op.
057:         *
058:         * Revision 1.1  2004/12/29 20:07:07  colinmacleod
059:         * Renamed subproject masks to mask.
060:         *
061:         * Revision 1.1.1.1  2004/05/16 20:40:32  colinmacleod
062:         * Ready for 0.1 release
063:         * -----------------------------------------------------------------------------
064:         */
065:        package com.ivata.mask.field;
066:
067:        import org.apache.log4j.Logger;
068:
069:        /**
070:         * <p>
071:         * Convert an object representing a class.
072:         * </p>
073:         *
074:         * @since ivata masks 0.1 (2004-05-14)
075:         * @author Colin MacLeod
076:         * <a href='mailto:colin.macleod@ivata.com'>colin.macleod@ivata.com</a>
077:         * @version $Revision: 1.7 $
078:         */
079:        public class ClassFieldValueConvertor extends FieldValueConvertor {
080:            /**
081:             * Logger for this class.
082:             */
083:            private static final Logger logger = Logger
084:                    .getLogger(ClassFieldValueConvertor.class);
085:
086:            /**
087:             * Serialization version (for <code>Serializable</code> interface).
088:             */
089:            private static final long serialVersionUID = 1L;
090:
091:            /**
092:             * <p>
093:             * Convert an object representing a class to a string. This returns the full
094:             * class name
095:             * </p>
096:             *
097:             * @param objectValue
098:             *            object to be converted.
099:             * @return string equivalent of the object provided.
100:             * @see com.ivata.mask.web.field.FieldValueConvertor#toString
101:             */
102:            protected String toString(final Object objectValue) {
103:                if (logger.isDebugEnabled()) {
104:                    logger.debug("toString(Object objectValue = " + objectValue
105:                            + ") - start");
106:                }
107:
108:                String returnString = ((Class) objectValue).getName();
109:                if (logger.isDebugEnabled()) {
110:                    logger.debug("toString(Object) - end - return value = "
111:                            + returnString);
112:                }
113:                return returnString;
114:            }
115:
116:            /**
117:             * <p>
118:             * Convert a class value from a string representing its name.
119:             * </p>
120:             *
121:             * @param propertyClass
122:             *            exact class to be converted to.
123:             * @param stringValue
124:             *            value to be converted.
125:             * @return valid class converted from a string.
126:             * @see com.ivata.mask.field.FieldValueConvertor#convertFromString
127:             */
128:            public Object convertFromString(final Class propertyClass,
129:                    final String stringValue) {
130:                if (logger.isDebugEnabled()) {
131:                    logger.debug("convertFromString(Class propertyClass = "
132:                            + propertyClass + ", String stringValue = "
133:                            + stringValue + ") - start");
134:                }
135:
136:                try {
137:                    Object returnObject = Class.forName(stringValue);
138:                    if (logger.isDebugEnabled()) {
139:                        logger
140:                                .debug("convertFromString - end - return value = "
141:                                        + returnObject);
142:                    }
143:                    return returnObject;
144:                } catch (ClassNotFoundException e) {
145:                    logger.error("convertFromString(Class, String)", e);
146:
147:                    throw new FieldValueException(e);
148:                }
149:            }
150:        }
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