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eFaps is a framework used to map objects with or without attached files to a relational database and optional file systems (only for attaches files). Configurable access control can be provided down to object and attribute level depending on implementation and use case. Depending on requirements, events (like triggers) allow to implement business logic and to separate business logic from user interface. The framework includes integrations (e.g. webdav, full text search) and a web application as 'simple' configurable user interface. Some best practises, example web application modules (e.g. team work module) support administrators and implementers using this framework.

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/*
 * Copyright 2003 - 2012 The eFaps Team
 *
 * 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.
 *
 * Revision:        $Rev: 7483 $
 * Last Changed:    $Date: 2012-05-11 11:57:38 -0500 (Fri, 11 May 2012) $
 * Last Changed By: $Author: [email protected] $
 */

package org.efaps.admin.datamodel.ui;

import org.efaps.db.Context;
import org.efaps.util.EFapsException;
import org.joda.time.DateTime;
import org.joda.time.DateTimeComparator;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

/**
 * Class to represent a DateTime for the user interface.
 *
 * @author The eFaps Team
 * @version $Id: DateTimeUI.java 7483 2012-05-11 16:57:38Z [email protected] $
 */
public class DateTimeUI
    extends AbstractUI
{

    /**
     * Needed for serialization.
     */
    private static final long serialVersionUID = 1L;

    /**
     *  {@inheritDoc}
     */
    @Override
    public String getReadOnlyHtml(final FieldValue _fieldValue)
        throws EFapsException
    {
        String ret = null;

        if (_fieldValue.getValue() instanceof DateTime) {
            final DateTime datetime = (DateTime) _fieldValue.getValue();
            if (datetime != null) {
                final DateTimeFormatter formatter = DateTimeFormat.mediumDateTime();
                // format the Date with the Locale and Chronology from the user
                // context
                ret = datetime.withChronology(Context.getThreadContext().getChronology()).toString(
                                formatter.withLocale(Context.getThreadContext().getLocale()));
            }
        } else if (_fieldValue.getValue() != null) {
            throw new EFapsException(this.getClass(), "getViewHtml.noDateTime", (Object[]) null);
        }
        return ret;
    }

    /**
     *  {@inheritDoc}
     */
    @Override
    public Object getObject4Compare(final FieldValue _fieldValue)
        throws EFapsException
    {
        Object ret;
        if (_fieldValue != null && _fieldValue.getValue() instanceof DateTime) {
            final DateTime datetime = (DateTime) _fieldValue.getValue();
            ret = datetime.withChronology(Context.getThreadContext().getChronology());
        } else {
            ret = _fieldValue.getValue();
        }
        return ret;
    }

    /**
     *  {@inheritDoc}
     */
    @Override
    public int compare(final FieldValue _fieldValue,
                       final FieldValue _fieldValue2)
    {
        int ret = 0;
        if (_fieldValue.getValue() instanceof DateTime && _fieldValue2.getValue() instanceof DateTime) {
            ret = DateTimeComparator.getInstance().compare(_fieldValue.getValue(), _fieldValue2.getValue());
        }
        return ret;
    }
}