VendorFromMac.java

package io.evercam.connect.helper;

import android.util.Log;

import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.JsonNode;
import com.mashape.unirest.http.Unirest;
import com.mashape.unirest.http.exceptions.UnirestException;

import org.json.JSONException;
import org.json.JSONObject;

import io.evercam.EvercamException;
import io.evercam.Vendor;
import io.evercam.network.query.EvercamQuery;

public class VendorFromMac
{
    private static final String TAG = "evercamdiscover-VendorFromMac";
    private final String URL = "http://www.macvendorlookup.com/api/v2/";
    private final String KEY_COMPANY = "company";
    private final int CODE_OK = 200;
    private final int CODE_NO_CONTENT = 204;
    private JSONObject vendorJsonObject = null;

    public VendorFromMac(String macAddress)
    {
        try
        {
            HttpResponse<JsonNode> response = Unirest.get(URL + macAddress).header("accept",
                    "application/json").asJson();
            if(response.getStatus() == CODE_OK)
            {
                vendorJsonObject = response.getBody().getArray().getJSONObject(0);
            }
        }
        catch(UnirestException e)
        {
            Log.e(TAG, e.getMessage());
        }
        catch(JSONException e)
        {
            Log.e(TAG, e.getMessage());
        }
    }

    public String getCompany()
    {
        if(vendorJsonObject != null)
        {
            try
            {
                return vendorJsonObject.getString(KEY_COMPANY);
            }
            catch(JSONException e)
            {
                e.printStackTrace();
            }
        }
        return "";
    }

    /**
     * Query Evercam API to get camera manufacturer's name by MAC address.
     *
     * @param macAddress Full MAC address read from device.
     * @return Short camera manufacturer's name, return empty string if camera
     * vendor not exists.
     */
    public static String getCameraVendor(String macAddress)
    {
        Vendor cameraVendor = EvercamQuery.getCameraVendorByMac(macAddress);
        if(cameraVendor != null)
        {
            try
            {
                return cameraVendor.getId();
            }
            catch(EvercamException e)
            {
                Log.e(TAG, e.toString());
            }
        }
        return "";
    }
}