ilarkesto.form.DateFormField.java Source code

Introduction

Here is the source code for ilarkesto.form.DateFormField.java

Source

/*
 * Copyright 2011 Witoslaw Koczewsi <wi@koczewski.de>, Artjom Kochtchi
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero
 * General Public License as published by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 */
package ilarkesto.form;

import ilarkesto.base.DateParser;
import ilarkesto.base.Utl;
import ilarkesto.core.time.Date;

import java.text.ParseException;
import java.util.Collection;
import java.util.Map;

import org.apache.commons.fileupload.FileItem;

public class DateFormField extends AFormField {

    private String value;

    public DateFormField(String name) {
        super(name);
    }

    public DateFormField setValue(Date value) {
        this.value = value == null ? null : value.formatDayMonthYear();
        return this;
    }

    @Override
    public void update(Map<String, String> data, Collection<FileItem> uploadedFiles) {
        String newValue = prepareValue(data.get(getName()));
        if (Utl.equals(value, newValue))
            return;
        value = newValue;
        fireFieldValueChanged();
    }

    private static String prepareValue(String s) {
        if (s == null)
            return null;
        s = s.trim();
        if (s.length() == 0)
            return null;
        try {
            return DateParser.parseDate(s).formatDayMonthYear();
        } catch (ParseException ex) {
            return s;
        }
    }

    @Override
    public void validate() throws ValidationException {
        if (value == null) {
            if (isRequired())
                throw new ValidationException("Eingabe erforderlich");

        } else {
            try {
                DateParser.parseDate(value);
            } catch (ParseException ex) {
                throw new ValidationException("Eingabe muss ein Datum sein. " + ex.getMessage());
            }
        }
    }

    @Override
    public String getValueAsString() {
        return value;
    }

    public Date getValueAsDate() {
        try {
            return value == null ? null : DateParser.parseDate(value);
        } catch (ParseException ex) {
            throw new RuntimeException(ex);
        }
    }

}