/GPX.FireMap.Workflow/GPX.FireMap.Workflow/AGSServerSupport.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using System.Net;

using Newtonsoft.Json.Linq;

using ESRI.ArcGIS.Client.Geometry;

using Geocortex.Logging;



namespace GPX.Firemap.Workflow.Activities.Server

{

    static class AGSServerSupport

    {





        /// <summary>

        /// Calls the Arc GIS server.

        /// </summary>

        /// <param name="URI">The URI.</param>

        /// <param name="response">The response.</param>

        static public void CallArcGISServer(string URI, out JObject response)

        {

            Stream data = null;

            StreamReader reader = null;



            try

            {

                //log the request string

                Logger.SystemInfo("Sending request to AGS: " + URI);



                WebClient client = new WebClient();

                data = client.OpenRead(URI);

                reader = new StreamReader(data);



                string s = reader.ReadToEnd();



                response = JObject.Parse(s);



            }

            catch (Exception ex)

            {

                Logger.SystemError("An error occured when calling ArcGIS Server" + ex.ToString());

                throw;

            }

            finally

            {

                if (data != null)

                    data.Close();



                if (reader != null)

                    reader.Close();

            }



        }





        public static string CreateMGRSConvertRequest(string serviceUrl, string mgrsReference, string wkid)

        {

            StringBuilder sb = new StringBuilder();

            sb.Append(serviceUrl);

            sb.Append("?reference=");

            sb.Append(mgrsReference);

            sb.Append("&wkid=");

            sb.Append(wkid);

            sb.Append("&f=pjson");



            return sb.ToString();





        }



        public static string CreateNearestFeatureIdRequest(MapPoint location, string layerId, string nearestFeatureUrl)

        {



            string finalUrl = string.Format(nearestFeatureUrl + "{0}/GetNearestFeature", layerId);



            StringBuilder sb = new StringBuilder();

            sb.Append(finalUrl);

            sb.Append("?location=");

            sb.Append(ConvertMapPointToJsom(location));

            sb.Append("&wkid=");

            sb.Append(location.SpatialReference.WKID.ToString());

            sb.Append("&f=pjson");



            return sb.ToString();



        }



        public static string CreateProjectGeometryRequest(MapPoint location, string inWkid, string outWkid, string geometryServiceUrl)

        {

            StringBuilder sb = new StringBuilder();

            sb.Append(geometryServiceUrl);

            sb.Append("/project");

            sb.Append("?inSR=" + inWkid.ToString());

            sb.Append("&outSR=" + outWkid.ToString());

            sb.Append("&geometries=");

            sb.Append("{");

            sb.Append("\"geometryType\" : \"esriGeometryPoint\",");

            sb.Append("\"geometries\" : ");

            sb.Append("[");

            sb.Append(ConvertMapPointToJsom(location));

            sb.Append("]");

            sb.Append("}");

            sb.Append("&f=json");



            return sb.ToString();

        }



        public static string CreateQueryRequest(MapPoint location, string rootUrl, IntersectFeatureDefinition ifd, string lyrId)

        {



            StringBuilder sb = new StringBuilder();

            sb.Append(rootUrl);

            sb.Append(lyrId);

            sb.Append("/query");

            sb.Append("?text=&geometry=");

            sb.Append(ConvertMapPointToJsom(location));

            sb.Append("&geometryType=esriGeometryPoint");

            sb.Append("&inSR=");

            sb.Append("&spatialRel=esriSpatialRelIntersects");

            sb.Append("&relationParam=");

            sb.Append("&objectIds=");

            sb.Append("&where=");

            sb.Append("&time=");

            sb.Append("&returnCountOnly=false");

            sb.Append("&returnIdsOnly=false");

            sb.Append("&returnGeometry=false");

            sb.Append("&maxAllowableOffset=");

            sb.Append("&outSR=");

            sb.Append("&outFields=");

            sb.Append(ifd.Fields);

            sb.Append("&f=json");

            return sb.ToString();

        }



        private static string ConvertMapPointToJsom(MapPoint pnt)

        {



            StringBuilder sb = new StringBuilder();

            sb.Append("{");

            sb.Append("x:" + pnt.X);

            sb.Append(",");

            sb.Append("y:" + pnt.Y);

            sb.Append("}");



            return sb.ToString();

        }



      



    }

}