private void wc_OpenReadCompleted(object sender, ArcGISWebClient.DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
Error = e.Error;
if (LoadFailed != null)
LoadFailed(this, null);
return;
}
// Make sure response is not empty
string json = e.Result;
if (string.IsNullOrEmpty(json))
{
Error = new Exception(Strings.EmptyResponse);
if (LoadFailed != null)
LoadFailed(this, null);
return;
}
// Check whether response contains error message
if (json.StartsWith("{\"error\":", StringComparison.Ordinal))
{
try
{
// Parse error message
ESRI.ArcGIS.Client.Utils.JavaScriptSerializer jss = new Client.Utils.JavaScriptSerializer();
Dictionary<string, object> dictionary = jss.DeserializeObject(json) as
Dictionary<string, object>;
bool errorRetrieved = false;
if (dictionary != null && dictionary.ContainsKey("error"))
{
Dictionary<string, object> errorInfo = dictionary["error"]
as Dictionary<string, object>;
if (errorInfo != null && errorInfo.ContainsKey("message")
&& errorInfo["message"] is string)
{
Error = new Exception((string)errorInfo["message"]);
errorRetrieved = true;
}
}
if (!errorRetrieved)
Error = new Exception(Strings.UnexpectedServiceAccessError);
}
catch
{
Error = new Exception(Strings.UnexpectedServiceAccessError);
}
if (LoadFailed != null)
LoadFailed(this, null);
return;
}
//Inject __type information to help DataContractJsonSerializer determine which abstract class to
//use when deserialing defaultValue property.
int idx = json.IndexOf("\"dataType\"", 0, StringComparison.Ordinal);
json = json.Replace("\"defaultValue\":{}", "\"defaultValue\":null");
while (idx > -1)
{
string type = json.Substring(idx + 12,
json.Substring(idx + 13).IndexOf("\"", StringComparison.Ordinal) + 1);
int start = json.IndexOf("\"defaultValue\":{", idx, StringComparison.Ordinal);
int start2 = json.IndexOf("\"defaultValue\":[", idx, StringComparison.Ordinal);
if (start2 > 0 && start2 < start)
start = start2;
if (start > -1)
{
string __type = null;
if (type == "GPFeatureRecordSetLayer")
{
__type = "\"__type\":\"GPFeatureRecordSetLayer:#ESRI.ArcGIS.Mapping.GP.MetaData\",";
}
else if (type == "GPLinearUnit")
{
__type = "\"__type\":\"GPLinearUnit:#ESRI.ArcGIS.Mapping.GP.MetaData\",";
}
else if (type == "GPDataFile")
{
__type = "\"__type\":\"GPDataFile:#ESRI.ArcGIS.Mapping.GP.MetaData\",";
}
if (__type != null)
json = json.Substring(0, start + 16) + __type + json.Substring(start + 16);
}
idx = json.IndexOf("\"dataType\"", idx + 10, StringComparison.Ordinal);
}
json = json.Replace("}\"Fields\"", "},\"Fields\""); //fix for bug in service
Type[] types = {
typeof(GPFeatureRecordSetLayer),
typeof(GPLinearUnit),
typeof(GPDataFile)
};
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(GPMetaData), types);
MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
object graph = serializer.ReadObject(ms);
ServiceInfo = (GPMetaData)graph;
ArcGISWebClient wc = new ArcGISWebClient() { ProxyUrl = e.UserState as string };
wc.DownloadStringCompleted += GPServerInfoDownloaded;
string gp = "/GPServer/";
string url = ServiceEndpoint.AbsoluteUri.Substring(0,
ServiceEndpoint.AbsoluteUri.LastIndexOf(gp) + gp.Length - 1) + "?f=json";
Uri uri = new Uri(url, UriKind.Absolute);
wc.DownloadStringAsync(uri);
}
private void wc_OpenReadCompleted(object sender, ArcGISWebClient.DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
Error = e.Error;
if (LoadFailed != null)
{
LoadFailed(this, null);
}
return;
}
// Make sure response is not empty
string json = e.Result;
if (string.IsNullOrEmpty(json))
{
Error = new Exception(Strings.EmptyResponse);
if (LoadFailed != null)
{
LoadFailed(this, null);
}
return;
}
// Check whether response contains error message
if (json.StartsWith("{\"error\":", StringComparison.Ordinal))
{
try
{
// Parse error message
ESRI.ArcGIS.Client.Utils.JavaScriptSerializer jss = new Client.Utils.JavaScriptSerializer();
Dictionary <string, object> dictionary = jss.DeserializeObject(json) as
Dictionary <string, object>;
bool errorRetrieved = false;
if (dictionary != null && dictionary.ContainsKey("error"))
{
Dictionary <string, object> errorInfo = dictionary["error"]
as Dictionary <string, object>;
if (errorInfo != null && errorInfo.ContainsKey("message") &&
errorInfo["message"] is string)
{
Error = new Exception((string)errorInfo["message"]);
errorRetrieved = true;
}
}
if (!errorRetrieved)
{
Error = new Exception(Strings.UnexpectedServiceAccessError);
}
}
catch
{
Error = new Exception(Strings.UnexpectedServiceAccessError);
}
if (LoadFailed != null)
{
LoadFailed(this, null);
}
return;
}
//Inject __type information to help DataContractJsonSerializer determine which abstract class to
//use when deserialing defaultValue property.
int idx = json.IndexOf("\"dataType\"", 0, StringComparison.Ordinal);
json = json.Replace("\"defaultValue\":{}", "\"defaultValue\":null");
while (idx > -1)
{
string type = json.Substring(idx + 12,
json.Substring(idx + 13).IndexOf("\"", StringComparison.Ordinal) + 1);
int start = json.IndexOf("\"defaultValue\":{", idx, StringComparison.Ordinal);
int start2 = json.IndexOf("\"defaultValue\":[", idx, StringComparison.Ordinal);
if (start2 > 0 && start2 < start)
{
start = start2;
}
if (start > -1)
{
string __type = null;
if (type == "GPFeatureRecordSetLayer")
{
__type = "\"__type\":\"GPFeatureRecordSetLayer:#ESRI.ArcGIS.Mapping.GP.MetaData\",";
}
else if (type == "GPLinearUnit")
{
__type = "\"__type\":\"GPLinearUnit:#ESRI.ArcGIS.Mapping.GP.MetaData\",";
}
else if (type == "GPDataFile")
{
__type = "\"__type\":\"GPDataFile:#ESRI.ArcGIS.Mapping.GP.MetaData\",";
}
if (__type != null)
{
json = json.Substring(0, start + 16) + __type + json.Substring(start + 16);
}
}
idx = json.IndexOf("\"dataType\"", idx + 10, StringComparison.Ordinal);
}
json = json.Replace("}\"Fields\"", "},\"Fields\""); //fix for bug in service
Type[] types =
{
typeof(GPFeatureRecordSetLayer),
typeof(GPLinearUnit),
typeof(GPDataFile)
};
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(GPMetaData), types);
MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
object graph = serializer.ReadObject(ms);
ServiceInfo = (GPMetaData)graph;
ArcGISWebClient wc = new ArcGISWebClient()
{
ProxyUrl = e.UserState as string
};
wc.DownloadStringCompleted += GPServerInfoDownloaded;
string gp = "/GPServer/";
string url = ServiceEndpoint.AbsoluteUri.Substring(0,
ServiceEndpoint.AbsoluteUri.LastIndexOf(gp) + gp.Length - 1) + "?f=json";
Uri uri = new Uri(url, UriKind.Absolute);
wc.DownloadStringAsync(uri);
}