private static void Member(JsonTextWriter writer, string name, string value)
{
Debug.Assert(writer != null);
Debug.AssertStringNotEmpty(name);
if (value == null || value.Length == 0)
return;
writer.Member(name).String(value);
}
private static void Member(JsonTextWriter writer, string name, NameValueCollection collection)
{
Debug.Assert(writer != null);
Debug.AssertStringNotEmpty(name);
//
// Bail out early if the collection is null or empty.
//
if (collection == null || collection.Count == 0)
return;
//
// Save the depth, which we'll use to lazily emit the collection.
// That is, if we find that there is nothing useful in it, then
// we could simply avoid emitting anything.
//
int depth = writer.Depth;
//
// For each key, we get all associated values and loop through
// twice. The first time round, we count strings that are
// neither null nor empty. If none are found then the key is
// skipped. Otherwise, second time round, we encode
// strings that are neither null nor empty. If only such string
// exists for a key then it is written directly, otherwise
// multiple strings are naturally wrapped in an array.
//
foreach (string key in collection.Keys)
{
string[] values = collection.GetValues(key);
if (values == null || values.Length == 0)
continue;
int count = 0; // Strings neither null nor empty.
for (int i = 0; i < values.Length; i++)
{
string value = values[i];
if (value != null && value.Length > 0)
count++;
}
if (count == 0) // None?
continue; // Skip key
//
// There is at least one value so now we emit the key.
// Before doing that, we check if the collection member
// was ever started. If not, this would be a good time.
//
if (depth == writer.Depth)
{
writer.Member(name);
writer.Object();
}
writer.Member(key);
if (count > 1)
writer.Array(); // Wrap multiples in an array
for (int i = 0; i < values.Length; i++)
{
string value = values[i];
if (value != null && value.Length > 0)
writer.String(value);
}
if (count > 1)
writer.Pop(); // Close multiples array
}
//
// If we are deeper than when we began then the collection was
// started so we terminate it here.
//
if (writer.Depth > depth)
writer.Pop();
}
private static void Member(JsonTextWriter writer, string name, DateTime value, DateTime defaultValue)
{
if (value == defaultValue)
return;
writer.Member(name).String(value);
}
private static void Member(JsonTextWriter writer, string name, int value, int defaultValue)
{
if (value == defaultValue)
return;
writer.Member(name).Number(value);
}
private static void EncodeEnclosed(Error error, JsonTextWriter writer)
{
Debug.Assert(error != null);
Debug.Assert(writer != null);
writer.Object();
Encode(error, writer);
writer.Pop();
}
internal static void Encode(Error error, JsonTextWriter writer)
{
Debug.Assert(error != null);
Debug.Assert(writer != null);
Member(writer, "application", error.ApplicationName);
Member(writer, "host", error.HostName);
Member(writer, "type", error.Type);
Member(writer, "message", error.Message);
Member(writer, "source", error.Source);
Member(writer, "detail", error.Detail);
Member(writer, "user", error.User);
Member(writer, "time", error.Time, DateTime.MinValue);
Member(writer, "statusCode", error.StatusCode, 0);
Member(writer, "webHostHtmlMessage", error.WebHostHtmlMessage);
Member(writer, "serverVariables", error.ServerVariables);
Member(writer, "queryString", error.QueryString);
Member(writer, "form", error.Form);
Member(writer, "cookies", error.Cookies);
}
public override void Entries(IList entries, int index, int count, int total)
{
Debug.Assert(entries != null);
Debug.Assert(index >= 0);
Debug.Assert(index + count <= entries.Count);
StringWriter writer = new StringWriter();
writer.NewLine = "\n";
if (_wrapped)
{
writer.WriteLine("<script type='text/javascript' language='javascript'>");
writer.WriteLine("//<[!CDATA[");
}
writer.Write(_callback);
writer.Write('(');
JsonTextWriter json = new JsonTextWriter(writer);
json.Object()
.Member("total").Number(total)
.Member("errors").Array();
Uri requestUrl = Context.Request.Url;
for (int i = index; i < count; i++)
{
ErrorLogEntry entry = (ErrorLogEntry) entries[i];
writer.WriteLine();
if (i == 0) writer.Write(' ');
writer.Write(" ");
string urlTemplate = new Uri(requestUrl, "{0}?id=" + HttpUtility.UrlEncode(entry.Id)).ToString();
json.Object();
ErrorJson.Encode(entry.Error, json);
json.Member("hrefs")
.Array()
.Object()
.Member("type").String("text/html")
.Member("href").String(string.Format(urlTemplate, "detail")).Pop()
.Object()
.Member("type").String("aplication/json")
.Member("href").String(string.Format(urlTemplate, "json")).Pop()
.Object()
.Member("type").String("application/xml")
.Member("href").String(string.Format(urlTemplate, "xml")).Pop()
.Pop()
.Pop();
}
json.Pop();
json.Pop();
if (count > 0)
writer.WriteLine();
writer.WriteLine(");");
if (_wrapped)
{
writer.WriteLine("//]]>");
writer.WriteLine("</script>");
if (count == 0)
writer.WriteLine(@"</body></html>");
}
Context.Response.Output.Write(writer);
}
