ProviderService.java

/**
 * Copyright (C) 2015, CoNWeT Lab., Universidad Politécnica de Madrid
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package es.upm.fiware.rss.ws;

import java.util.List;

import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;

import org.springframework.beans.factory.annotation.Autowired;

import es.upm.fiware.rss.exception.RSSException;
import es.upm.fiware.rss.exception.UNICAExceptionType;
import es.upm.fiware.rss.model.RSSProvider;
import es.upm.fiware.rss.model.RSUser;
import es.upm.fiware.rss.service.ProviderManager;
import es.upm.fiware.rss.service.UserManager;

/**
 *
 * @author fdelavega
 */
@Path("/")
@WebService(serviceName = "providers", name="providers")
public class ProviderService {

    @Autowired
    ProviderManager providerManager;

    @Autowired
    UserManager userManager;
    /**
     * 
     * @param providerInfo
     * @throws Exception
     * @return 
     */
    @WebMethod
    @POST
    @Consumes("application/json")
    public Response createProvider(RSSProvider providerInfo) throws Exception{

        RSUser user = userManager.getCurrentUser();

        // Check if the user can create a provider for the given aggregator
        if (!providerInfo.getAggregatorId().equals(user.getEmail())
                && !userManager.isAdmin()) {
            String[] args = {"You are not allowed to create a provider for the given aggregatorId"};
            throw new RSSException(UNICAExceptionType.NON_ALLOWED_OPERATION, args);
        }
        // Create a new provider for the store represented by the User (AggregatorID)
        providerManager.createProvider(
            providerInfo.getProviderId(),
            providerInfo.getProviderName(),
            providerInfo.getAggregatorId());

        ResponseBuilder rb = Response.status(Response.Status.CREATED.getStatusCode());
        return rb.build();
    }

    @WebMethod
    @GET
    @Produces("application/json")
    public Response getProviders(@QueryParam("aggregatorId") String aggregatorId)
            throws Exception{

        RSUser user = userManager.getCurrentUser();
        String effectiveAggregator = null;

        if (userManager.isAdmin()) {
            effectiveAggregator = aggregatorId;
        } else if (null == aggregatorId || aggregatorId.equals(user.getEmail())){
            effectiveAggregator = user.getEmail();
        } else {
            String[] args = {"You are not allowed to get the providers of the given aggregator"};
            throw new RSSException(UNICAExceptionType.NON_ALLOWED_OPERATION, args);
        }

        List<RSSProvider> providers = providerManager.getAPIProviders(effectiveAggregator);
        ResponseBuilder rb = Response.status(Response.Status.OK.getStatusCode());
        rb.entity(providers);
        return rb.build();
    }
}