com.google.iosched.model.validator.DateTimeConverter.java Source code

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Here is the source code for com.google.iosched.model.validator.DateTimeConverter.java

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/*
 * Copyright 2014 Google Inc. All rights reserved.
 *
 * 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 com.google.iosched.model.validator;

import com.google.gson.JsonPrimitive;
import com.google.iosched.Config;

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

public class DateTimeConverter extends Converter {
    SimpleDateFormat[] inputFormats = new SimpleDateFormat[] { new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'"),
            new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss"), };
    SimpleDateFormat outputFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");

    public DateTimeConverter() {
    }

    @SuppressWarnings("deprecation")
    @Override
    public JsonPrimitive convert(JsonPrimitive value) {
        if (value == null) {
            return null;
        }
        Date date = null;
        Exception lastEx = null;
        for (int i = 0; i < inputFormats.length && date == null; i++) {
            try {
                date = inputFormats[i].parse(value.getAsString());
            } catch (NumberFormatException e) {
                lastEx = e;
            } catch (ParseException e) {
                lastEx = e;
            }
        }

        if (date == null) {
            throw new ConverterException(value, this, lastEx.getMessage());
        }

        if (date.getYear() < 100) {
            // hack to fix invalid dates on temporary data
            date.setYear(114);
            date.setMonth(Calendar.JUNE);
            date.setDate(25);
        }
        if (Config.TIME_TRAVEL_SHIFT != 0) {
            date = new Date(date.getTime() + Config.TIME_TRAVEL_SHIFT);
        }
        return new JsonPrimitive(outputFormat.format(date));
    }
}