Java tutorial
/* * Copyright 2010 Chris Searle * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package net.chrissearle.flickrvote.web.validators; import com.opensymphony.xwork2.validator.ValidationException; import com.opensymphony.xwork2.validator.validators.FieldValidatorSupport; import org.joda.time.DateTime; import java.util.Date; import java.util.Locale; public class DayOfWeekValidator extends FieldValidatorSupport { private String dayOfWeek; public void validate(Object object) throws ValidationException { String fieldName = getFieldName(); Date fieldValue = (Date) getFieldValue(fieldName, object); DateTime date = new DateTime(fieldValue); if (!date.dayOfWeek().getAsShortText(Locale.ENGLISH).equalsIgnoreCase(dayOfWeek)) { addFieldError(fieldName, object); } } public String getDayOfWeek() { return dayOfWeek; } public void setDayOfWeek(String dayOfWeek) { this.dayOfWeek = dayOfWeek; } }