Package com.facebook.presto.jdbc.internal.jackson.datatype.joda.deser

Source Code of com.facebook.presto.jdbc.internal.jackson.datatype.joda.deser.LocalDateDeserializer

package com.facebook.presto.jdbc.internal.jackson.datatype.joda.deser;

import java.io.IOException;

import com.facebook.presto.jdbc.internal.joda.time.LocalDate;
import com.facebook.presto.jdbc.internal.joda.time.format.DateTimeFormatter;
import com.facebook.presto.jdbc.internal.joda.time.format.ISODateTimeFormat;

import com.facebook.presto.jdbc.internal.jackson.core.JsonParser;
import com.facebook.presto.jdbc.internal.jackson.core.JsonProcessingException;
import com.facebook.presto.jdbc.internal.jackson.core.JsonToken;
import com.facebook.presto.jdbc.internal.jackson.databind.DeserializationContext;

public class LocalDateDeserializer
    extends JodaDeserializerBase<LocalDate>
{
    final static DateTimeFormatter parser = ISODateTimeFormat.localDateParser();

    public LocalDateDeserializer() { super(LocalDate.class); }

    @Override
    public LocalDate deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException
    {
        switch (jp.getCurrentToken()) {
        case START_ARRAY:
            // [yyyy,mm,dd]
            if (jp.isExpectedStartArrayToken()) {
                jp.nextToken(); // VALUE_NUMBER_INT
                int year = jp.getIntValue();
                jp.nextToken(); // VALUE_NUMBER_INT
                int month = jp.getIntValue();
                jp.nextToken(); // VALUE_NUMBER_INT
                int day = jp.getIntValue();
                if (jp.nextToken() != JsonToken.END_ARRAY) {
                    throw ctxt.wrongTokenException(jp, JsonToken.END_ARRAY, "after LocalDate ints");
                }
                return new LocalDate(year, month, day);
            }
            break;
        case VALUE_NUMBER_INT:
            return new LocalDate(jp.getLongValue());           
        case VALUE_STRING:
            String str = jp.getText().trim();
            if (str.length() == 0) { // [JACKSON-360]
                return null;
            }
            return parser.parseLocalDate(str);
        }
        throw ctxt.wrongTokenException(jp, JsonToken.START_ARRAY, "expected JSON Array, String or Number");
    }
}
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