it.jugtorino.one.msvc.way.rabbit.reference.webapp.GeoIPResource.java Source code

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Here is the source code for it.jugtorino.one.msvc.way.rabbit.reference.webapp.GeoIPResource.java

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/*
 * Copyright (C) 2017 Federico Fissore
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package it.jugtorino.one.msvc.way.rabbit.reference.webapp;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import com.rabbitmq.client.Address;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import it.jugtorino.one.msvc.way.rabbit.geoip.reference.client.RpcClient;

@Path("geoip")
public class GeoIPResource {

    private final RpcClient client;

    public GeoIPResource() throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        Connection connection = factory.newConnection(Collections.singletonList(new Address("localhost")));
        Channel channel = connection.createChannel();
        channel.queueDeclare("geoip_service_v1", false, false, false, null);

        client = new RpcClient(channel, "geoip_service_v1");
        client.startConsuming();
    }

    @GET
    @Path("resolve/{ip}")
    @Produces(MediaType.APPLICATION_JSON)
    public Response resolveIP(@PathParam("ip") String ipAddress) throws Exception {
        Map<String, Object> ip = new HashMap<>();
        ip.put("ip", ipAddress);
        Map<String, Object> message = new HashMap<>();
        message.put("resolve_ip", ip);

        Map<String, Object> response = client.send(message)
                .thenApply(res -> (Map<String, Object>) res.get("resolve_ip")).join();

        if (response == null) {
            return Response.status(404).build();
        }

        return Response.ok(response).build();
    }
}