org.jongo.marshall.jackson.BackwardDateDeserializer.java Source code

Introduction

Here is the source code for org.jongo.marshall.jackson.BackwardDateDeserializer.java

Source

/*
 * Copyright (C) 2011 Benoit GUEROUT <bguerout at gmail dot com> and Yves AMSELLEM <amsellem dot yves at gmail dot 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 org.jongo.marshall.jackson;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;

import java.io.IOException;
import java.util.Date;

class BackwardDateDeserializer extends JsonDeserializer<Date> {

    private final NativeDeserializer deserializer;

    public BackwardDateDeserializer(NativeDeserializer deserializer) {
        this.deserializer = deserializer;
    }

    @Override
    public Date deserialize(JsonParser jp, DeserializationContext ctxt)
            throws IOException, JsonProcessingException {
        Object deserializedDate = parse(jp, ctxt);
        if (deserializedDate instanceof Long)
            return new Date((Long) deserializedDate);
        return (Date) deserializedDate;
    }

    private Object parse(JsonParser jp, DeserializationContext ctxt) throws IOException {
        return deserializer.deserialize(jp, ctxt);
    }
}