in.tum.de.ase.db.TicketsHandler.java Source code

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Here is the source code for in.tum.de.ase.db.TicketsHandler.java

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/*******************************************************************************
 * Copyright 2016 Amit Kumar Mondal
 *
 * 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 in.tum.de.ase.db;

import com.google.common.base.Preconditions;

import in.tum.de.ase.model.Eticket;
import in.tum.de.ase.model.EticketType;

/**
 * Utility Class of handling tickets for Database related operations
 *
 * @author AMIT KUMAR MONDAL
 *
 */
public interface TicketsHandler {

    /**
     * Inserts the provided single ticket to the database
     *
     * @param eticket
     *            provided ticket
     * @throws NullPointerException
     *             if argument is null
     */
    public static void insertTicket(final Eticket eticket) {
        Preconditions.checkNotNull(eticket);

        if (eticket.getType() == EticketType.SINGLE) {
            EnvironmentInitializer.getInstance().getCollection().save(eticket);
        }
    }

    /**
     * Checks for already validated ticket in the database
     *
     * @param ticketId
     *            the ticket id to be checked
     * @return true if already found in the database as validated, otherwise
     *         false
     * @throws NullPointerException
     *             if argument is null
     */
    public static boolean isValidatedTicket(final String ticketId) {
        Preconditions.checkNotNull(ticketId);
        final Eticket eticket = EnvironmentInitializer.getInstance().getCollection()
                .findOne("{ticketId:'" + ticketId + "'}").as(Eticket.class);
        if ((eticket != null) && (eticket.getType() == EticketType.SINGLE)) {
            return ticketId.equals(eticket.getTicketId());
        }
        return false;
    }

}