de.metas.ui.web.vaadin.window.editor.DateEditor.java Source code

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Here is the source code for de.metas.ui.web.vaadin.window.editor.DateEditor.java

Source

package de.metas.ui.web.vaadin.window.editor;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.vaadin.data.util.converter.Converter;
import com.vaadin.shared.ui.datefield.Resolution;
import com.vaadin.ui.AbstractField;
import com.vaadin.ui.DateField;

import de.metas.ui.web.window.shared.descriptor.PropertyDescriptorValueType;
import de.metas.ui.web.window.shared.descriptor.ViewPropertyDescriptor;

/*
 * #%L
 * de.metas.ui.web.vaadin
 * %%
 * Copyright (C) 2016 metas GmbH
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 2 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 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/gpl-2.0.html>.
 * #L%
 */

@SuppressWarnings("serial")
public class DateEditor extends FieldEditor<Date> {
    private final SimpleDateFormat dateFormat;

    public DateEditor(final ViewPropertyDescriptor descriptor) {
        super(descriptor);

        final DateField valueField = getValueField();

        //
        final PropertyDescriptorValueType valueType = descriptor == null ? PropertyDescriptorValueType.Date
                : descriptor.getValueType();
        final Resolution resolution;
        if (valueType == PropertyDescriptorValueType.Date) {
            resolution = Resolution.DAY;
        } else if (valueType == PropertyDescriptorValueType.DateTime) {
            resolution = Resolution.MINUTE;
        } else if (valueType == PropertyDescriptorValueType.Time) {
            // TODO: implement TimeEditor. Consider using https://vaadin.com/directory#!addon/timefield or something more nicer
            resolution = Resolution.SECOND;
        } else {
            throw new IllegalArgumentException("Cannot detect resolution for displayType=" + valueType);
        }

        //
        valueField.setResolution(resolution);

        this.dateFormat = ViewPropertyDescriptorValueTypeHelper.getDateFormat(valueType);
        valueField.setDateFormat(dateFormat.toPattern());
    }

    @Override
    protected AbstractField<Date> createValueField() {
        final DateField dateField = new DateField();
        return dateField;
    }

    @Override
    protected DateField getValueField() {
        return (DateField) super.getValueField();
    }

    @Override
    protected Date convertToView(final Object valueObj) {
        if (valueObj == null) {
            return null;
        } else if (valueObj instanceof java.util.Date) {
            return (java.util.Date) valueObj;
        } else if (valueObj instanceof String) {
            try {
                return dateFormat.parse(valueObj.toString());
            } catch (ParseException e) {
                throw new Converter.ConversionException("Invalid value: " + valueObj, e);
            }
        } else {
            throw new Converter.ConversionException("Invalid value: " + valueObj + "(" + valueObj.getClass() + ")");
        }
    }
}