org.dominokit.jacksonapt.deser.BaseDateJsonDeserializer Maven / Gradle / Ivy

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/*
 * Copyright 2013 Nicolas Morel
 *
 * 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.dominokit.jacksonapt.deser;

import org.dominokit.jacksonapt.JacksonContextProvider;
import org.dominokit.jacksonapt.JsonDeserializationContext;
import org.dominokit.jacksonapt.JsonDeserializer;
import org.dominokit.jacksonapt.JsonDeserializerParameters;
import org.dominokit.jacksonapt.stream.JsonReader;
import org.dominokit.jacksonapt.stream.JsonToken;

import java.sql.Time;
import java.sql.Timestamp;
import java.util.Date;

/**
 * Base implementation of {@link org.dominokit.jacksonapt.JsonDeserializer} for dates.
 *
 * @author Nicolas Morel
 * @version $Id: $
 */
public abstract class BaseDateJsonDeserializer extends JsonDeserializer {

    /**
     * Default implementation of {@link BaseDateJsonDeserializer} for {@link Date}
     */
    public static final class DateJsonDeserializer extends BaseDateJsonDeserializer {

        private static final DateJsonDeserializer INSTANCE = new DateJsonDeserializer();

        /**
         * @return an instance of {@link DateJsonDeserializer}
         */
        public static DateJsonDeserializer getInstance() {
            return INSTANCE;
        }

        private DateJsonDeserializer() {
        }

        @Override
        protected Date deserializeNumber(long millis, JsonDeserializerParameters params) {
            return new Date(millis);
        }

        @Override
        protected Date deserializeString(String date, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
            return JacksonContextProvider.get().dateFormat().parse(ctx.isUseBrowserTimezone(), params.getPattern(), null, date);
        }
    }

    /**
     * Default implementation of {@link BaseDateJsonDeserializer} for {@link java.sql.Date}
     */
    public static final class SqlDateJsonDeserializer extends BaseDateJsonDeserializer {

        private static final SqlDateJsonDeserializer INSTANCE = new SqlDateJsonDeserializer();

        private static final String SQL_DATE_FORMAT = "yyyy-MM-dd";

        /**
         * @return an instance of {@link SqlDateJsonDeserializer}
         */
        public static SqlDateJsonDeserializer getInstance() {
            return INSTANCE;
        }

        private SqlDateJsonDeserializer() {
        }

        @Override
        protected java.sql.Date deserializeNumber(long millis, JsonDeserializerParameters params) {
            return new java.sql.Date(millis);
        }

        @Override
        protected java.sql.Date deserializeString(String date, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
            return new java.sql.Date(JacksonContextProvider.get().dateFormat().parse(ctx.isUseBrowserTimezone(), SQL_DATE_FORMAT, false, date).getTime());
        }
    }

    /**
     * Default implementation of {@link BaseDateJsonDeserializer} for {@link Time}
     */
    public static final class SqlTimeJsonDeserializer extends BaseDateJsonDeserializer {

        private static final SqlTimeJsonDeserializer INSTANCE = new SqlTimeJsonDeserializer();

        /**
         * @return an instance of {@link SqlTimeJsonDeserializer}
         */
        public static SqlTimeJsonDeserializer getInstance() {
            return INSTANCE;
        }

        private SqlTimeJsonDeserializer() {
        }

        @Override
        protected Time deserializeNumber(long millis, JsonDeserializerParameters params) {
            return new Time(millis);
        }

        @Override
        protected Time deserializeString(String date, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
            return Time.valueOf(date);
        }
    }

    /**
     * Default implementation of {@link BaseDateJsonDeserializer} for {@link Timestamp}
     */
    public static final class SqlTimestampJsonDeserializer extends BaseDateJsonDeserializer {

        private static final SqlTimestampJsonDeserializer INSTANCE = new SqlTimestampJsonDeserializer();

        /**
         * @return an instance of {@link SqlTimestampJsonDeserializer}
         */
        public static SqlTimestampJsonDeserializer getInstance() {
            return INSTANCE;
        }

        private SqlTimestampJsonDeserializer() {
        }

        @Override
        protected Timestamp deserializeNumber(long millis, JsonDeserializerParameters params) {
            return new Timestamp(millis);
        }

        @Override
        protected Timestamp deserializeString(String date, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
            return new Timestamp(JacksonContextProvider.get().dateFormat().parse(ctx.isUseBrowserTimezone(), params.getPattern(), null, date).getTime());
        }
    }

    /** {@inheritDoc} */
    @Override
    public D doDeserialize(JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
        if (params.getShape().isNumeric() || JsonToken.NUMBER.equals(reader.peek())) {
            return deserializeNumber(reader.nextLong(), params);
        } else {
            return deserializeString(reader.nextString(), ctx, params);
        }
    }

    /**
     * deserializeNumber
     *
     * @param millis a long.
     * @param params a {@link org.dominokit.jacksonapt.JsonDeserializerParameters} object.
     * @return a D object.
     */
    protected abstract D deserializeNumber(long millis, JsonDeserializerParameters params);

    /**
     * deserializeString
     *
     * @param date   a {@link java.lang.String} object.
     * @param ctx    a {@link org.dominokit.jacksonapt.JsonDeserializationContext} object.
     * @param params a {@link org.dominokit.jacksonapt.JsonDeserializerParameters} object.
     * @return a D object.
     */
    protected abstract D deserializeString(String date, JsonDeserializationContext ctx, JsonDeserializerParameters params);
}