/// <summary>
/// Executes the workflow activity.
/// </summary>
/// <param name="executionContext">The execution context.</param>
protected override void Execute(CodeActivityContext executionContext)
{
// Create the tracing service
ITracingService tracingService = executionContext.GetExtension<ITracingService>();
if (tracingService == null)
{
throw new InvalidPluginExecutionException("Failed to retrieve tracing service.");
}
tracingService.Trace("Entered " + _activityName + ".Execute(), Activity Instance Id: {0}, Workflow Instance Id: {1}",
executionContext.ActivityInstanceId,
executionContext.WorkflowInstanceId);
// Create the context
IWorkflowContext context = executionContext.GetExtension<IWorkflowContext>();
if (context == null)
{
throw new InvalidPluginExecutionException("Failed to retrieve workflow context.");
}
tracingService.Trace(_activityName + ".Execute(), Correlation Id: {0}, Initiating User: {1}",
context.CorrelationId,
context.InitiatingUserId);
IOrganizationServiceFactory serviceFactory = executionContext.GetExtension<IOrganizationServiceFactory>();
IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);
try
{
string inputText = TextInput.Get(executionContext);
if (inputText != string.Empty)
{
inputText = HtmlTools.StripHTML(inputText);
//create the webrequest object and execute it (and post jsonmsg to it)
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(_webAddress);
//set request content type so it is treated as a regular form post
req.ContentType = "application/x-www-form-urlencoded";
//set method to post
req.Method = "POST";
StringBuilder postData = new StringBuilder();
//HttpUtility.UrlEncode
//set the apikey request value
postData.Append("apikey=" + System.Uri.EscapeDataString(_apiKey) + "&");
//postData.Append("apikey=" + _apiKey + "&");
//set the text request value
postData.Append("text=" + System.Uri.EscapeDataString(inputText));
//postData.Append("text=" + inputText);
//create a stream
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(postData.ToString());
req.ContentLength = bytes.Length;
System.IO.Stream os = req.GetRequestStream();
os.Write(bytes, 0, bytes.Length);
os.Close();
//get the response
System.Net.WebResponse resp = req.GetResponse();
//deserialize the response to a SentimentResponse object
SentimentResponse myResponse = new SentimentResponse();
System.Runtime.Serialization.Json.DataContractJsonSerializer deserializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(myResponse.GetType());
myResponse = deserializer.ReadObject(resp.GetResponseStream()) as SentimentResponse;
//set output values from the fields of the deserialzed myjsonresponse object
Score.Set(executionContext, myResponse.Aggregate.Score);
Sentiment.Set(executionContext, myResponse.Aggregate.Sentiment);
}
}
catch (WebException exception)
{
string str = string.Empty;
if (exception.Response != null)
{
using (StreamReader reader =
new StreamReader(exception.Response.GetResponseStream()))
{
str = reader.ReadToEnd();
}
exception.Response.Close();
}
if (exception.Status == WebExceptionStatus.Timeout)
{
throw new InvalidPluginExecutionException(
"The timeout elapsed while attempting to issue the request.", exception);
}
throw new InvalidPluginExecutionException(String.Format(CultureInfo.InvariantCulture,
"A Web exception ocurred while attempting to issue the request. {0}: {1}",
exception.Message, str), exception);
}
catch (FaultException<OrganizationServiceFault> e)
{
tracingService.Trace("Exception: {0}", e.ToString());
// Handle the exception.
throw;
}
catch (Exception e)
{
tracingService.Trace("Exception: {0}", e.ToString());
throw;
}
tracingService.Trace("Exiting " + _activityName + ".Execute(), Correlation Id: {0}", context.CorrelationId);
}
/// <summary>
/// Executes the workflow activity.
/// </summary>
/// <param name="executionContext">The execution context.</param>
protected override void Execute(CodeActivityContext executionContext)
{
// Create the tracing service
ITracingService tracingService = executionContext.GetExtension <ITracingService>();
if (tracingService == null)
{
throw new InvalidPluginExecutionException("Failed to retrieve tracing service.");
}
tracingService.Trace("Entered " + _activityName + ".Execute(), Activity Instance Id: {0}, Workflow Instance Id: {1}",
executionContext.ActivityInstanceId,
executionContext.WorkflowInstanceId);
// Create the context
IWorkflowContext context = executionContext.GetExtension <IWorkflowContext>();
if (context == null)
{
throw new InvalidPluginExecutionException("Failed to retrieve workflow context.");
}
tracingService.Trace(_activityName + ".Execute(), Correlation Id: {0}, Initiating User: {1}",
context.CorrelationId,
context.InitiatingUserId);
IOrganizationServiceFactory serviceFactory = executionContext.GetExtension <IOrganizationServiceFactory>();
IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);
try
{
string inputText = TextInput.Get(executionContext);
if (inputText != string.Empty)
{
inputText = HtmlTools.StripHTML(inputText);
//create the webrequest object and execute it (and post jsonmsg to it)
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(_webAddress);
//set request content type so it is treated as a regular form post
req.ContentType = "application/x-www-form-urlencoded";
//set method to post
req.Method = "POST";
StringBuilder postData = new StringBuilder();
//HttpUtility.UrlEncode
//set the apikey request value
postData.Append("apikey=" + System.Uri.EscapeDataString(_apiKey) + "&");
//postData.Append("apikey=" + _apiKey + "&");
//set the text request value
postData.Append("text=" + System.Uri.EscapeDataString(inputText));
//postData.Append("text=" + inputText);
//create a stream
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(postData.ToString());
req.ContentLength = bytes.Length;
System.IO.Stream os = req.GetRequestStream();
os.Write(bytes, 0, bytes.Length);
os.Close();
//get the response
System.Net.WebResponse resp = req.GetResponse();
//deserialize the response to a SentimentResponse object
SentimentResponse myResponse = new SentimentResponse();
System.Runtime.Serialization.Json.DataContractJsonSerializer deserializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(myResponse.GetType());
myResponse = deserializer.ReadObject(resp.GetResponseStream()) as SentimentResponse;
//set output values from the fields of the deserialzed myjsonresponse object
Score.Set(executionContext, myResponse.Aggregate.Score);
Sentiment.Set(executionContext, myResponse.Aggregate.Sentiment);
}
}
catch (WebException exception)
{
string str = string.Empty;
if (exception.Response != null)
{
using (StreamReader reader =
new StreamReader(exception.Response.GetResponseStream()))
{
str = reader.ReadToEnd();
}
exception.Response.Close();
}
if (exception.Status == WebExceptionStatus.Timeout)
{
throw new InvalidPluginExecutionException(
"The timeout elapsed while attempting to issue the request.", exception);
}
throw new InvalidPluginExecutionException(String.Format(CultureInfo.InvariantCulture,
"A Web exception ocurred while attempting to issue the request. {0}: {1}",
exception.Message, str), exception);
}
catch (FaultException <OrganizationServiceFault> e)
{
tracingService.Trace("Exception: {0}", e.ToString());
// Handle the exception.
throw;
}
catch (Exception e)
{
tracingService.Trace("Exception: {0}", e.ToString());
throw;
}
tracingService.Trace("Exiting " + _activityName + ".Execute(), Correlation Id: {0}", context.CorrelationId);
}