public static bool IsTransientNetworkError(Exception e, out string code)
{
const string Tag = "IsTransientNetworkError";
code = String.Empty;
foreach (var exception in Misc.Flatten(e))
{
if (exception is IOException ||
exception is TimeoutException ||
exception is SocketException)
{
code = e.GetType().Name;
Log.To.Sync.V(Tag, "Rule #1: Exception is IOException, TimeoutException, or SocketException, " +
"ruling transient...", exception);
return(true);
}
var we = exception as WebException;
if (we == null)
{
Log.To.Sync.V(Tag, "No further information can be gained from this exception, " +
"attempting to find other nested exceptions...", exception);
if (!String.IsNullOrEmpty(code))
{
code = e.GetType().Name;
}
continue;
}
if (we.Status == WebExceptionStatus.ConnectFailure || we.Status == WebExceptionStatus.Timeout ||
we.Status == WebExceptionStatus.ConnectionClosed || we.Status == WebExceptionStatus.RequestCanceled)
{
Log.To.Sync.V(Tag, "Rule #2: Exception is WebException and status is ConnectFailure, Timeout, " +
"ConnectionClosed, or RequestCanceled, ruling transient...", we);
code = we.Status.ToString();
return(true);
}
var statusCode = GetStatusCode(we);
if (!statusCode.HasValue)
{
Log.To.Sync.V(Tag, "No further information can be gained from this WebException (missing response?), " +
"attempting to find other nested exceptions...", we);
code = we.Status.ToString();
continue;
}
if (IsTransientError(((HttpWebResponse)we.Response).StatusCode))
{
Log.To.Sync.V(Tag, "Rule #3: {0} is considered a transient error code, ruling transient...",
((HttpWebResponse)we.Response).StatusCode);
code = statusCode.Value.ToString();
return(true);
}
}
Log.To.Sync.V(Tag, "No transient exceptions found, ruling fatal...");
return(false);
}
internal Status UpdateIndex_Internal()
{
var status = new Status(StatusCode.Unknown);
try {
status.Code = Storage.UpdateIndexes(ViewsInGroup().Select(x => x.Storage)) ? StatusCode.Ok :
StatusCode.DbError;
} catch (Exception e) {
var innerException = Misc.Flatten(e).First() as CouchbaseLiteException;
if (innerException != null)
{
status.Code = innerException.Code;
}
else
{
status.Code = StatusCode.Exception;
}
}
return(status);
}