com.btmatthews.atlas.core.dao.mongo.MongoLocalDateTimeDeserializer.java Source code

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Here is the source code for com.btmatthews.atlas.core.dao.mongo.MongoLocalDateTimeDeserializer.java

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/*
 * Copyright 2011-2013 Brian Thomas Matthews
 *
 * 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.btmatthews.atlas.core.dao.mongo;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;

import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

/**
 * @author <a href="mailto:brian@btmatthews.com">Brian Thomas Matthews</a>
 * @since 1.0.2
 */
public class MongoLocalDateTimeDeserializer extends JsonDeserializer<LocalDateTime> {

    private static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter
            .ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");

    @Override
    public LocalDateTime deserialize(final JsonParser parser, final DeserializationContext context)
            throws IOException {
        final ObjectCodec codec = parser.getCodec();
        final JsonNode node = codec.readTree(parser);
        final JsonNode dateNode = node.get("$date");
        return LocalDateTime.parse(dateNode.asText(), DATE_TIME_FORMATTER);
    }
}