com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer Maven / Gradle / Ivy

/*
 * Copyright 2013 FasterXML.com
 *
 * 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.fasterxml.jackson.datatype.jsr310.deser;

import java.io.IOException;
import java.time.DateTimeException;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonDeserializer;

/**
 * Deserializer for Java 8 temporal {@link LocalTime}s.
 *
 * @author Nick Williams
 * @since 2.2.0
 */
public class LocalTimeDeserializer extends JSR310DateTimeDeserializerBase
{
    private static final long serialVersionUID = 1L;
    
    private static final DateTimeFormatter DEFAULT_FORMATTER = DateTimeFormatter.ISO_LOCAL_TIME;

    public static final LocalTimeDeserializer INSTANCE = new LocalTimeDeserializer();

    private LocalTimeDeserializer() {
        this(DEFAULT_FORMATTER);
    }

    public LocalTimeDeserializer(DateTimeFormatter formatter) {
        super(LocalTime.class, formatter);
    }

    @Override
    protected JsonDeserializer withDateFormat(DateTimeFormatter formatter) {
        return new LocalTimeDeserializer(formatter);
    }
    
    @Override
    public LocalTime deserialize(JsonParser parser, DeserializationContext context) throws IOException
    {
        if (parser.hasToken(JsonToken.VALUE_STRING)) {
            String string = parser.getText().trim();
            if (string.length() == 0) {
                return null;
            }
            DateTimeFormatter format = _formatter;
            try {
                if (format == DEFAULT_FORMATTER) {
    	            if (string.contains("T")) {
    	                return LocalTime.parse(string, DateTimeFormatter.ISO_LOCAL_DATE_TIME);
    	            }
                }
                return LocalTime.parse(string, format);
            } catch (DateTimeException e) {
                _rethrowDateTimeException(parser, context, e, string);
            }
        }
        if (parser.isExpectedStartArrayToken()) {
            if (parser.nextToken() == JsonToken.END_ARRAY) {
                return null;
            }
            int hour = parser.getIntValue();

            parser.nextToken();
            int minute = parser.getIntValue();

            if(parser.nextToken() != JsonToken.END_ARRAY)
            {
                int second = parser.getIntValue();

                if(parser.nextToken() != JsonToken.END_ARRAY)
                {
                    int partialSecond = parser.getIntValue();
                    if(partialSecond < 1_000 &&
                            !context.isEnabled(DeserializationFeature.READ_DATE_TIMESTAMPS_AS_NANOSECONDS))
                        partialSecond *= 1_000_000; // value is milliseconds, convert it to nanoseconds

                    if(parser.nextToken() != JsonToken.END_ARRAY)
                        throw context.wrongTokenException(parser, JsonToken.END_ARRAY, "Expected array to end.");

                    return LocalTime.of(hour, minute, second, partialSecond);
                }

                return LocalTime.of(hour, minute, second);
            }
            return LocalTime.of(hour, minute);
        }
        if (parser.hasToken(JsonToken.VALUE_EMBEDDED_OBJECT)) {
            return (LocalTime) parser.getEmbeddedObject();
        }
        throw context.wrongTokenException(parser, JsonToken.START_ARRAY, "Expected array or string.");
    }
}