Java tutorial
/* * Copyright 2014 Goran Ehrsson. * * 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 grails.plugins.crm.core; import groovy.transform.CompileStatic; import org.springframework.util.StringUtils; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; /** * * @author Goran Ehrsson */ @CompileStatic public class CustomDateEditor extends org.springframework.beans.propertyeditors.CustomDateEditor { private boolean sql; public static String[] DATE_FORMATS = new String[] { "yyyy-MM-dd", "yyyyMMdd", "yyMMdd" }; public CustomDateEditor(final DateFormat dateFormat, final boolean allowEmpty, final int exactDateLength) { super(dateFormat, allowEmpty, exactDateLength); } public CustomDateEditor(final DateFormat dateFormat, final boolean allowEmpty) { super(dateFormat, allowEmpty); } public CustomDateEditor(final DateFormat dateFormat, final boolean allowEmpty, final boolean sqlDate) { super(dateFormat, allowEmpty); sql = sqlDate; } @Override public void setAsText(final String text) throws IllegalArgumentException { if (!StringUtils.hasText(text)) { setValue(null); // Treat empty String as null value. } else { Exception error = null; java.util.Date date = null; for (int i = 0; i < DATE_FORMATS.length; i++) { try { DateFormat df = new SimpleDateFormat(DATE_FORMATS[i]); df.setLenient(false); date = df.parse(text); } catch (ParseException ex) { if (error == null) { error = ex; } } if (date != null) { setValue(sql ? new java.sql.Date(date.getTime()) : date); error = null; break; // We've found a valid date. } } if (error != null) { throw new IllegalArgumentException("Could not parse date: " + error.getMessage()); } } } }