com.yandex.money.api.model.Card Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of ym-java-epr-sdk Show documentation
This Java library contains classes that allows you to do payments using Yandex.Money public API.
The newest version!
package com.yandex.money.api.model;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.yandex.money.api.methods.JsonUtils;

import java.lang.reflect.Type;

/**
 * Bank card info.
 *
 * @author Slava Yasevich ([email protected])
 */
public class Card extends MoneySource {

    private final String panFragment;
    private final String type;

    /**
     * Constructor.
     *
     * @param id unique card id
     * @param panFragment panned fragment of card's number
     * @param type type of a card
     */
    public Card(String id, String panFragment, String type) {
        super(id);
        this.panFragment = panFragment;
        this.type = type;
    }

    /**
     * Creates {@link com.yandex.money.api.model.Card} from {@link com.google.gson.JsonElement}.
     */
    public static Card createFromJson(JsonElement element) {
        return buildGson().fromJson(element, Card.class);
    }

    /**
     * Creates {@link com.yandex.money.api.model.Card} from JSON.
     */
    public static Card createFromJson(String json) {
        return buildGson().fromJson(json, Card.class);
    }

    @Override
    public String toString() {
        return "Card{" +
                "panFragment='" + panFragment + '\'' +
                ", type='" + type + '\'' +
                '}';
    }

    /**
     * @return panned fragment of card's number
     */
    public String getPanFragment() {
        return panFragment;
    }

    /**
     * @return type of a card (e.g. VISA, MasterCard, AmericanExpress, etc.)
     */
    public String getType() {
        return type;
    }

    /**
     * Serializes {@link com.yandex.money.api.model.Card} object to JSON text.
     *
     * @return JSON text
     */
    public String serializeToJson() {
        return buildGson().toJson(this);
    }

    private static Gson buildGson() {
        return new GsonBuilder()
                .registerTypeAdapter(Card.class, new TypeAdapter())
                .create();
    }

    private static final class TypeAdapter
            implements JsonDeserializer, JsonSerializer {

        private static final String FIELD_ID = "id";
        private static final String FIELD_PAN_FRAGMENT = "pan_fragment";
        private static final String FIELD_TYPE = "type";

        @Override
        public Card deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
                throws JsonParseException {

            JsonObject object = json.getAsJsonObject();
            return new Card(JsonUtils.getString(object, FIELD_ID),
                    JsonUtils.getString(object, FIELD_PAN_FRAGMENT),
                    JsonUtils.getString(object, FIELD_TYPE));
        }

        @Override
        public JsonElement serialize(Card src, Type typeOfSrc, JsonSerializationContext context) {
            JsonObject object = new JsonObject();
            object.addProperty(FIELD_ID, src.getId());
            object.addProperty(FIELD_PAN_FRAGMENT, src.getPanFragment());
            object.addProperty(FIELD_TYPE, src.getType());
            return null;
        }
    }
}