001: /*
002: * ====================================================================
003: * JAFFA - Java Application Framework For All
004: *
005: * Copyright (C) 2002 JAFFA Development Group
006: *
007: * This library is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU Lesser General Public
009: * License as published by the Free Software Foundation; either
010: * version 2.1 of the License, or (at your option) any later version.
011: *
012: * This library is distributed in the hope that it will be useful,
013: * but WITHOUT ANY WARRANTY; without even the implied warranty of
014: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015: * Lesser General Public License for more details.
016: *
017: * You should have received a copy of the GNU Lesser General Public
018: * License along with this library; if not, write to the Free Software
019: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020: *
021: * Redistribution and use of this software and associated documentation ("Software"),
022: * with or without modification, are permitted provided that the following conditions are met:
023: * 1. Redistributions of source code must retain copyright statements and notices.
024: * Redistributions must also contain a copy of this document.
025: * 2. Redistributions in binary form must reproduce the above copyright notice,
026: * this list of conditions and the following disclaimer in the documentation
027: * and/or other materials provided with the distribution.
028: * 3. The name "JAFFA" must not be used to endorse or promote products derived from
029: * this Software without prior written permission. For written permission,
030: * please contact mail to: jaffagroup@yahoo.com.
031: * 4. Products derived from this Software may not be called "JAFFA" nor may "JAFFA"
032: * appear in their names without prior written permission.
033: * 5. Due credit should be given to the JAFFA Project (http://jaffa.sourceforge.net).
034: *
035: * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
036: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
039: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046: * SUCH DAMAGE.
047: * ====================================================================
048: */
049:
050: package org.jaffa.rules.fieldvalidators;
051:
052: import org.jaffa.datatypes.ValidationException;
053: import org.jaffa.exceptions.FrameworkException;
054: import java.util.StringTokenizer;
055: import org.apache.log4j.Logger;
056: import org.jaffa.datatypes.exceptions.PatternMismatchException;
057:
058: /** This Field Validator ensures that the field value is specified in the List. The List will have multiple values separated by the separator character. The default separator character is a comma ','.
059: */
060: public class InListFieldValidator extends AbstractFieldValidator {
061:
062: private static final Logger log = Logger
063: .getLogger(InListFieldValidator.class);
064: private static final String DEFAULT_SEPARATOR = ",";
065: private String m_list;
066: private String m_separator;
067:
068: /** Getter for property list.
069: * @return Value of property list.
070: */
071: public String getList() {
072: return m_list;
073: }
074:
075: /** Setter for property list.
076: * @param list New value of property list.
077: */
078: public void setList(String list) {
079: m_list = list;
080: }
081:
082: /** Getter for property separator.
083: * @return Value of property separator.
084: */
085: public String getSeparator() {
086: return m_separator;
087: }
088:
089: /** Setter for property separator.
090: * @param separator New value of property separator.
091: */
092: public void setSeparator(String separator) {
093: m_separator = separator;
094: }
095:
096: /** The RulesEngine will invoke this method to perform the field validation.
097: * @throws ValidationException if any validation rule fails.
098: * @throws FrameworkException if any framework error occurs.
099: */
100: public void validate() throws ValidationException,
101: FrameworkException {
102: Object value = getValue();
103: if (value != null) {
104: String valueString = value.toString();
105: String separator;
106: if (m_separator == null || m_separator.trim().length() == 0)
107: separator = DEFAULT_SEPARATOR;
108: else
109: separator = m_separator;
110:
111: for (StringTokenizer stkzr = new StringTokenizer(m_list,
112: separator); stkzr.hasMoreTokens();) {
113: String listElement = stkzr.nextToken();
114: if (listElement.equals(valueString))
115: return;
116: }
117:
118: // No match found.. throw an exception
119: String str = "The value '" + value
120: + "' not found in the List '" + m_list + "'";
121: log.error(str);
122: throw new PatternMismatchException(getLabelToken(),
123: new Object[] { m_list });
124: }
125: }
126:
127: }
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