private Boolean TrySend()
{
Exception lastException = null;
HttpStatusCode status = HttpStatusCode.BadRequest; // valor inicial antes do envio
if (listener != null)
{
listener.NotifyObject("Enviando requisição...");
}
HttpWebRequest request = null;
Stream requestStream = null;
HttpWebResponse response = null;
Stream responseStream = null;
try
{
Byte[] serializedObject = ObjectSerializer.SerializeObjectToArray(requestData);
String encodedData = HttpUtility.UrlEncode(Convert.ToBase64String(serializedObject));
Byte[] postData = Encoding.UTF8.GetBytes("txtPostData=" + encodedData);
request = (HttpWebRequest)WebRequest.Create(serviceUrl + "?action=" + requestAction);
request.Method = "POST";
request.ServicePoint.ConnectionLimit = 10; // define limite para 10 conexões
request.Timeout = this.timeout; // define o timeout
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postData.Length;
requestStream = request.GetRequestStream();
requestStream.Write(postData, 0, postData.Length);
response = (HttpWebResponse)request.GetResponse();
status = response.StatusCode;
responseStream = response.GetResponseStream();
Byte[] buffer = new Byte[response.ContentLength];
responseStream.Read(buffer, 0, (int)response.ContentLength);
responseData = Encoding.UTF8.GetString(buffer);
}
catch (Exception exception)
{
lastException = exception;
}
finally
{
if (responseStream != null)
{
responseStream.Close();
}
if (response != null)
{
((IDisposable)response).Dispose(); response.Close();
}
if (requestStream != null)
{
requestStream.Close();
}
request = null; // permite que o garbage collector elimine o objeto
}
if (lastException != null)
{
if (listener != null)
{
listener.NotifyObject(lastException.Message);
}
return(false);
}
if (status != HttpStatusCode.OK)
{
if (listener != null)
{
listener.NotifyObject("Falha no envio. Status = " + status);
}
return(false);
}
return(true);
}