com.sube.daos.mongodb.CardMongoDaoImpl.java Source code

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Here is the source code for com.sube.daos.mongodb.CardMongoDaoImpl.java

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/*******************************************************************************
 * Copyright 2012 Javier Ignacio Lecuona
 * 
 * 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.sube.daos.mongodb;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.bson.types.ObjectId;

import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.sube.beans.CardStatus;
import com.sube.beans.MongoCollection;
import com.sube.beans.SubeCard;
import com.sube.daos.mongodb.generators.DBObjectGenerator;
import com.sube.daos.mongodb.parsers.DBObjectParser;
import com.sube.exceptions.card.InvalidSubeCardException;

public class CardMongoDaoImpl implements CardDao {
    private DB db;
    private SubeCardValidator subeCardValidator;
    private DBObjectGenerator<SubeCard> subeCardGenerator;
    private DBObjectParser<SubeCard> subeCardParser;

    @Override
    public void storeSubeCard(SubeCard subeCard) throws InvalidSubeCardException {
        if (!subeCardValidator.isValid(subeCard)) {
            throw new InvalidSubeCardException();
        }
        DBCollection collection = getCardCollection();
        collection.ensureIndex(new BasicDBObject("number", 1), new BasicDBObject("unique", true));
        collection.ensureIndex(new BasicDBObject("user.docNum", 1));
        collection.ensureIndex(new BasicDBObject("user.docNum", 1).append("user.docType", 1),
                new BasicDBObject("unique", true));
        DBObject subeCardDBObject = subeCardGenerator.generate(subeCard);
        collection.insert(subeCardDBObject);
        subeCard.setMongoId((ObjectId) subeCardDBObject.get("_id"));
    }

    @Override
    public void markStolen(SubeCard subeCard) throws InvalidSubeCardException {
        markAs(subeCard, CardStatus.STOLEN.status);
    }

    @Override
    public void markDeleted(SubeCard subeCard) throws InvalidSubeCardException {
        markAs(subeCard, CardStatus.DELETED.status);
    }

    @Override
    public void markLost(SubeCard subeCard) throws InvalidSubeCardException {
        markAs(subeCard, CardStatus.LOST.status);
    }

    @Override
    public void markActive(SubeCard subeCard) throws InvalidSubeCardException {
        markAs(subeCard, CardStatus.ACTIVE.status);
    }

    @Override
    public Double addToBalance(SubeCard subeCard, Double money) throws InvalidSubeCardException {
        DBCollection collection = getCardCollection();
        BasicDBObject query = getCardQuery(subeCard);
        Double balance = getBalanceByQuery(query);
        Double newBalance = balance.doubleValue() + money;
        BasicDBObject update = new BasicDBObject("$set", new BasicDBObject("balance", newBalance));
        collection.update(query, update);
        return newBalance;
    }

    @Override
    public Double getBalance(SubeCard subeCard) throws InvalidSubeCardException {
        return getBalanceByQuery(getCardQuery(subeCard));
    }

    @Override
    public List<SubeCard> getCards(SubeCard subeCard) throws InvalidSubeCardException {
        DBCollection collection = getCardCollection();
        DBCursor cursor = collection.find(getCardQuery(subeCard));
        Iterator<DBObject> iterator = cursor.iterator();
        List<SubeCard> cards = new ArrayList<SubeCard>();
        while (iterator.hasNext()) {
            DBObject dbObject = iterator.next();
            cards.add(subeCardParser.parse(dbObject));
        }
        return cards;
    }

    @Override
    public void removeAll() {
        DBCollection collection = getCardCollection();
        collection.remove(new BasicDBObject());
    }

    private Double getBalanceByQuery(DBObject query) {
        DBCollection collection = getCardCollection();
        DBObject subeCardDBObject = collection.findOne(query);
        return (Double) subeCardDBObject.get("balance");
    }

    private void markAs(SubeCard subeCard, String status) {
        DBCollection collection = getCardCollection();
        BasicDBObject query = getCardQuery(subeCard);
        BasicDBObject update = new BasicDBObject("$set", new BasicDBObject("status", status));
        collection.findAndModify(query, update);
    }

    private BasicDBObject getCardQuery(SubeCard subeCard) {
        BasicDBObject query = new BasicDBObject();
        if (subeCard.getMongoId() == null) {
            query.put("number", subeCard.getNumber());
        } else {
            query.put("_id", subeCard.getMongoId());
        }
        return query;
    }

    private DBCollection getCardCollection() {
        DBCollection collection = db.getCollection(MongoCollection.Cards.name);
        return collection;
    }

    public void setDb(DB db) {
        this.db = db;
    }

    public void setSubeCardGenerator(DBObjectGenerator<SubeCard> subeCardGenerator) {
        this.subeCardGenerator = subeCardGenerator;
    }

    public void setSubeCardValidator(SubeCardValidator subeCardValidator) {
        this.subeCardValidator = subeCardValidator;
    }

    public void setSubeCardParser(DBObjectParser<SubeCard> subeCardParser) {
        this.subeCardParser = subeCardParser;
    }
}