/// <summary>
/// Exports the specified export package.
/// </summary>
/// <param name="exportPackage">The export package.</param>
/// <param name="writer">The writer to which the data is exported to.</param>
/// <param name="log">The log.</param>
/// <param name="context">The export context information.</param>
/// <exception cref="System.ArgumentNullException">exportPackage</exception>
/// <exception cref="System.Exception"></exception>
static public void Export(XElement exportPackage, TextWriter writer, Action <int, string> log = null, dynamic context = null)
{
if (exportPackage == null)
{
throw new ArgumentNullException("exportPackage");
}
log = log ?? NullLogger; // ensure we have a logger of some sort
log.Info("Export started");
try {
var package = ExportPackage.Load(exportPackage);
Type providerType = Type.GetType(package.ProviderType);
ExportProvider provider = providerType != null
? Activator.CreateInstance(providerType) as ExportProvider
: null;
if (provider == null)
{
if (providerType == null)
{
throw new Exception(string.Format("Provider does not exist. '{0}'", package.ProviderType));
}
throw new Exception(string.Format("Invalid export provider: '{0}'. ", package.ProviderType));
}
provider.Export(package.Instructions, writer, log, context);
log.Info("Export completed");
} catch (Exception ex) {
log.Error(ex.Message);
log.Info("Export aborted");
return;
}
}
