public static Hosts Load(string path)
{
var hosts = new Hosts();
using (var file = File.OpenText(path))
using (var reader = new JsonTextReader(file))
{
var json = JToken.ReadFrom(reader);
foreach (var entry in json.Children <JProperty>())
{
string host = entry.Name;
if (entry.Value.Type != JTokenType.String)
{
throw new ArgumentException("Host does contain a valid value: " + host);
}
string ipStr = (string)entry.Value;
IPAddress ip;
if (!IPAddress.TryParse(ipStr, out ip))
{
throw new ArgumentException("IP address could not be parsed: " + ipStr);
}
if (!hosts.Add(host, ip))
{
throw new ArgumentException("Host is assigned more than once: " + host);
}
}
}
return(hosts);
}
private void SaveHosts(Hosts hosts)
{
hosts.Clear();
foreach (DataRow row in dt.Rows)
{
hosts.Add(row.Field <string>(0), IPAddress.Parse(row.Field <string>(1)));
}
Modified = false;
Text = originalTitle;
}