/// <summary>
/// Loads email message template from a file and performs transformation.
/// </summary>
/// <param name="options">
/// Program options.
/// </param>
/// <param name="data">
/// Dictionary object holding substitution strings used by the transformation.
/// </param>
/// <returns>
/// Mail message generated from the template file.
/// </returns>
private static MailMessage ProcessTemplate
(
Options options,
Dictionary <string, object> data
)
{
// The Mailr class used for template transformations.
MailTemplate msg = new MailTemplate();
// If the template file name format was not specified,
// use the default format.
if (!String.IsNullOrEmpty(options.TemplateNameFormat))
{
msg.FileNameFormat = options.TemplateNameFormat;
}
// If the mail subject was specified, set it explicitly.
// Doing so would ignore the contents of the <title> tag.
if (!String.IsNullOrEmpty(options.MailSubject))
{
msg.Subject = options.MailSubject;
}
// Either load template form the specified file,
// or use the template parts to generate the file name
// on the fly.
try
{
if (String.IsNullOrEmpty(options.TemplateFilePath))
{
msg.Load
(
options.TemplateDirPath, // required
options.TemplateName, // required
options.TemplateCulture, // optional
options.TemplateExtension // optional
);
}
else
{
msg.Load(options.TemplateFilePath);
}
}
catch (Exception ex)
{
String errMsg;
if (String.IsNullOrEmpty(options.TemplateFilePath))
{
errMsg = String.Format("Cannot load template from directory '{0}'.",
options.TemplateDirPath);
}
else
{
errMsg = String.Format("Cannot load template from file '{0}'.",
options.TemplateFilePath);
}
throw new Exception(errMsg, ex);
}
// If we have data, perform substitutions in the template.
try
{
if (data == null)
{
msg.Transform();
}
else
{
msg.Transform(data);
}
}
catch (Exception ex)
{
throw new Exception("Cannot transform template.", ex);
}
return(msg as MailMessage);
}
