01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.cocoon.forms.samples;
18:
19: import java.util.Calendar;
20: import java.util.Date;
21: import java.util.GregorianCalendar;
22:
23: import org.apache.avalon.framework.logger.AbstractLogEnabled;
24: import org.apache.cocoon.forms.formmodel.Widget;
25: import org.apache.cocoon.forms.validation.ValidationError;
26: import org.apache.cocoon.forms.validation.ValidationErrorAware;
27: import org.apache.cocoon.forms.validation.WidgetValidator;
28:
29: /**
30: * Example of a custom validator. Check that the given date is a valid birth date, i.e.
31: * is at least 5 years before current date and no more than 100 years old.
32: */
33: public class CustomBirthDateValidator extends AbstractLogEnabled
34: implements WidgetValidator {
35:
36: /**
37: * @see org.apache.cocoon.forms.validation.WidgetValidator#validate(org.apache.cocoon.forms.formmodel.Widget)
38: */
39: public boolean validate(Widget widget) {
40: Date birthDate = (Date) widget.getValue();
41: if (getLogger().isDebugEnabled()) {
42: getLogger().debug("Validating date " + birthDate);
43: }
44: GregorianCalendar cal = new GregorianCalendar();
45: cal.add(Calendar.YEAR, -5);
46: Date maxDate = cal.getTime();
47: cal.add(Calendar.YEAR, -95);
48: Date minDate = cal.getTime();
49: if (birthDate.after(maxDate) || birthDate.before(minDate)) {
50: if (widget instanceof ValidationErrorAware) {
51: ((ValidationErrorAware) widget)
52: .setValidationError(new ValidationError(
53: "Invalid birth date", false));
54: }
55: return false;
56: }
57: return true;
58: }
59: }
|