protected void Page_Load(object sender, EventArgs e)
{
url = url1;
if (Request["v"] == "2")
{
url = url2;
version = "2.0";
Console.WriteLine("Using 2.0");
}
Console.WriteLine("using url = " + url);
ArrayList sites = null;
DateTime now = DateTime.Now;
if (GetLastUpdateTime(version).AddMinutes(30) > now) // If cache is newer than 30 mins, use it.
{
Console.WriteLine("Reading data from cache");
sites = GetDataFromFile(version);
}
else
{
Console.WriteLine("Reading data from url");
UpdateTimeStamp(now, version);
sites = MoonParser.ParseURL(url);
WriteDataToFile(sites, version);
}
string html = getHeader();
foreach (MoonSite site in sites)
{
html += site.ToHtml();
}
html += getFooter();
MoonContent.InnerHtml = html;
}
//This method reads serialized data (an ArrayList) from file. Data is not cached as text!
private ArrayList GetDataFromFile(string version)
{
string f = cacheFile + version;
ArrayList list = null;
if (File.Exists(f))
{
FileStream reader = new FileStream(f, FileMode.Open, FileAccess.Read);
IFormatter formatter = new BinaryFormatter();
list = (ArrayList)formatter.Deserialize(reader);
reader.Close();
}
else
{
//get data from url
UpdateTimeStamp(DateTime.Now, version);
list = MoonParser.ParseURL(url);
WriteDataToFile(list, version);
}
return(list);
}