public static CrawlerQueue LoadFromFile(string fileName)
{
var br = Utilities.GetReaderForFile(fileName);
var queue = new CrawlerQueue();
if (br == null)
{
return(queue);
}
// Header
var ident = br.ReadString();
var ver = br.ReadInt32();
if (!ident.Equals(FileIdent) || ver != FileVersion)
{
throw new FileLoadException("Incorrect file format!");
}
// Entries
var entryCount = br.ReadInt32();
for (var i = 0; i < entryCount; i++)
{
queue.AddLink(br.ReadString());
}
br.Close();
return(queue);
}
public static void SaveToFile(string fileName, CrawlerQueue queue)
{
var bw = Utilities.GetWriterForFile(fileName);
// Header
bw.Write(FileIdent);
bw.Write(FileVersion);
// Entries
var entries = queue._backlog.ToArray();
bw.Write(entries.Length);
foreach (var entry in entries)
{
bw.Write(entry);
}
bw.Close();
}