CustomerService.java

/*
 * Copyright (c) 2002-2017, Mairie de Paris
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice
 *     and the following disclaimer.
 *
 *  2. Redistributions in binary form must reproduce the above copyright notice
 *     and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *
 *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
 *     contributors may be used to endorse or promote products derived from
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * License 1.0
 */
package fr.paris.lutece.plugins.gru.service.customer;

import java.util.List;
import java.util.Map;

import fr.paris.lutece.plugins.grubusiness.business.customer.Customer;
import fr.paris.lutece.portal.service.spring.SpringContextService;

/**
 * <p>
 * This class represents a service for customers.
 * </p>
 * <p>
 * Designed as a singleton.
 * </p>
 */
public final class CustomerService
{
    private static final String BEAN_CUSTOMER_SERVICE = "gru.customerService";
    private final fr.paris.lutece.plugins.grubusiness.business.customer.CustomerService _service;

    /**
     * Private constructor
     */
    private CustomerService( )
    {
        _service = SpringContextService.getBean( BEAN_CUSTOMER_SERVICE );
    }

    /**
     * Get the singleton instance
     * 
     * @return The singleton instance
     */
    public static CustomerService instance( )
    {
        return CustomerServiceHolder._instance;
    }

    /**
     * Finds the customers depending on the specified filter
     * 
     * @param mapFilter
     *            the filter
     * @return the list of customers
     */
    public List<Customer> findByFilter( Map<String, String> mapFilter )
    {
        return _service.findbyFilter( mapFilter );
    }

    /**
     * Finds a customer by its id
     * 
     * @param strCustomerId
     *            the customer id
     * @return the customer, or {@code null} if not found
     */
    public Customer findById( String strCustomerId )
    {
        Customer customer = null;

        if ( strCustomerId != null )
        {
            customer = _service.findById( strCustomerId );
        }

        return customer;
    }

    /**
     * This class holds the {@code CustomerService} instance
     *
     */
    private static class CustomerServiceHolder
    {
        private static final CustomerService _instance = new CustomerService( );
    }
}