001/*
002 *  Copyright 2018 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.core.model.type;
017
018import java.time.ZonedDateTime;
019import java.time.format.DateTimeFormatter;
020import java.time.format.DateTimeParseException;
021import java.util.ArrayList;
022import java.util.List;
023
024import org.apache.commons.lang3.StringUtils;
025
026import org.ametys.core.model.type.AbstractElementType;
027import org.ametys.runtime.model.exception.BadItemTypeException;
028
029/**
030 * Abstract class for date time element types
031 */
032public abstract class AbstractDateTimeElementType extends AbstractElementType<ZonedDateTime>
033{
034    public ZonedDateTime castValue(String value) throws BadItemTypeException
035    {
036        if (StringUtils.isEmpty(value))
037        {
038            return null;
039        }
040        
041        try
042        {
043            return ZonedDateTime.parse(value, DateTimeFormatter.ISO_OFFSET_DATE_TIME);
044        }
045        catch (DateTimeParseException e)
046        {
047            throw new BadItemTypeException("Unable to cast '" + value + "' to a date", e);
048        }
049    }
050    
051    @Override
052    public String toString(ZonedDateTime value)
053    {
054        if (value == null)
055        {
056            return null;
057        }
058        return value.format(DateTimeFormatter.ISO_OFFSET_DATE_TIME);
059    }
060
061    @Override
062    protected Object _singleValueToJSON(ZonedDateTime value)
063    {
064        return toString(value);
065    }
066
067    public Object fromJSONForClient(Object json)
068    {
069        if (json == null)
070        {
071            return json;
072        }
073        else if (json instanceof String)
074        {
075            return castValue((String) json);
076        }
077        else if (json instanceof List)
078        {
079            @SuppressWarnings("unchecked")
080            List<String> jsonList = (List<String>) json;
081            List<ZonedDateTime> dateList = new ArrayList<>();
082            for (String singleJSON : jsonList)
083            {
084                dateList.add(castValue(singleJSON));
085            }
086            return dateList.toArray(new ZonedDateTime[dateList.size()]);
087        }
088        else
089        {
090            throw new IllegalArgumentException("Try to convert the non Date time JSON object '" + json + "' into a Date");
091        }
092    }
093    
094    public boolean isSimple()
095    {
096        return true;
097    }
098
099}