/// <summary>
/// Process the request, executing the output action
/// </summary>
/// <param name='options'>
/// Options for processing
/// </param>
/// <param name="manager">
/// The manager
/// </param>
/// <param name='outputAction'>
/// Output action.
/// </param>
private static void Execute(Option options, IFeedManager manager, Action<string> outputAction)
{
XmlWriter writer = null;
var serializer = new JavaScriptSerializer();
try
{
var buffer = new System.Text.StringBuilder();
if (options.Format == Format.Xml)
{
writer = XmlWriter.Create(buffer);
}
PrintHeader(options.Format, writer, buffer);
bool firstFeed = true;
foreach (var feed in manager.Get(options.InputFile))
{
bool hasChild = true;
bool firstItem = true;
foreach (var item in manager.GetItems(feed, options.Since, options.IgnoreCerts))
{
if (hasChild)
{
if (options.Format == Format.Json)
{
if (!firstFeed)
{
buffer.Append(",");
}
firstFeed = false;
}
PrintFeed(options.Format, feed, outputAction, writer, buffer, serializer);
hasChild = false;
}
if (options.Format == Format.Json)
{
if (!firstItem)
{
buffer.Append(",");
}
firstItem = false;
}
PrintItem(options.Format, item, outputAction, writer, buffer, serializer);
if (buffer.Length >= FlushBuffer)
{
outputAction(buffer.ToString());
buffer.Clear();
}
}
if (!hasChild)
{
PrintFeedEnd(options.Format, writer, buffer);
}
}
PrintEnd(options.Format, writer, buffer);
if (options.Format != Format.Console)
{
outputAction(buffer.ToString());
}
}
finally
{
if (writer != null)
{
((IDisposable)writer).Dispose();
}
}
}