/// <summary>
/// Returns an output sequence of given type
/// </summary>
/// <typeparam name="TOutput">The desired type</typeparam>
/// <returns>Sequence in which all events are of type TOutput</returns>
public IObservable <TOutput> GetObservable <TOutput>()
{
IObserver <object> o;
if (!_outputs.TryGetValue(typeof(TOutput), out o))
{
o = new OutputSubject <TOutput>();
_outputs.Add(typeof(TOutput), o);
}
var output = (IObservable <TOutput>)o;
return(output);
}
protected override void Execute(CodeActivityContext executionContext)
{
//Create the context
IWorkflowContext context = executionContext.GetExtension <IWorkflowContext>();
IOrganizationServiceFactory serviceFactory = executionContext.GetExtension <IOrganizationServiceFactory>();
IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);
EntityReference emailTemplateSendId = EmailTemplateSendId.Get <EntityReference>(executionContext);
Entity emailTemplateSend = service.Retrieve("ndxc_emailtemplatesend", emailTemplateSendId.Id, new ColumnSet("ndxc_accountid", "ndxc_emailtemplateid"));
EntityReference accountId = emailTemplateSend.GetAttributeValue <EntityReference>("ndxc_accountid");
EntityReference emailTemplateId = emailTemplateSend.GetAttributeValue <EntityReference>("ndxc_emailtemplateid");
Entity emailTemplate = service.Retrieve("ndxc_emailtemplate", emailTemplateId.Id, new ColumnSet("ndxc_subject", "ndxc_body"));
string templateSubject = emailTemplate.GetAttributeValue <string>("ndxc_subject");
string templateBody = emailTemplate.GetAttributeValue <string>("ndxc_body");
// Regular expression to find the tags within the string content
var regex = new Regex(@"{(.*?)}");
// Use the regex to grab the tags from the string
MatchCollection subjectTags = regex.Matches(templateSubject);
MatchCollection bodyTags = regex.Matches(templateBody);
MatchCollection allTags = regex.Matches(templateSubject + templateBody);
// Create a new column set for each of the viable tables
var accountColumnSet = new ColumnSet(false);
// For each tag found
foreach (Match tag in allTags)
{
// Get the tag name
// By removing the first and last characters
// '{' '}'
var tagName = tag.Value.Substring(1, tag.Value.Length - 2);
// Split tagName by '#'
// Provides the entity logical name
// And field name
var tagComponents = tagName.Split('#');
// switch on the first tag component
// which is the logical name of the table
// then add the column - found in the second tag component
switch (tagComponents[0])
{
case "account":
accountColumnSet.AddColumn(tagComponents[1]);
break;
}
}
// Retrieve the records that have been passed as parameters
// Using the columnsets defined
Entity account = service.Retrieve("account", accountId.Id, accountColumnSet);
// Now we have the data
// Loop through the tags again
// Retrieve the data for the given column from the record provided
// Replace the tag with the value
foreach (Match tag in subjectTags)
{
var tagName = tag.Value.Substring(1, tag.Value.Length - 2);
var tagComponents = tagName.Split('#');
switch (tagComponents[0])
{
case "account":
if (account != null)
{
var schemaTextValue = returnValueForSchemaName(service, account, tagComponents[1]);
templateSubject = templateSubject.Replace(tag.Value, schemaTextValue);
}
break;
}
}
foreach (Match tag in bodyTags)
{
var tagName = tag.Value.Substring(1, tag.Value.Length - 2);
var tagComponents = tagName.Split('#');
switch (tagComponents[0])
{
case "account":
if (account != null)
{
var schemaTextValue = returnValueForSchemaName(service, account, tagComponents[1]);
templateBody = templateBody.Replace(tag.Value, schemaTextValue);
}
break;
}
}
// Set the resultant string as the output for the CWA
// As well as the application reference
OutputSubject.Set(executionContext, templateSubject);
OutputBody.Set(executionContext, templateBody);
}
