| public static Decode ( XmlReader reader ) : Error | ||
| reader | XmlReader | |
| return | Error | |
/// <summary>
/// Returns the specified error from the filesystem, or throws an exception if it does not exist.
/// </summary>
public override ErrorLogEntry GetError(string id)
{
try
{
id = (new Guid(id)).ToString(); // validate GUID
}
catch (FormatException e)
{
throw new ArgumentException(e.Message, id, e);
}
var file = new DirectoryInfo(LogPath).GetFiles(string.Format("error-*-{0}.xml", id))
.FirstOrDefault();
if (file == null)
{
return(null);
}
if (!IsUserFile(file.Attributes))
{
return(null);
}
using (var reader = XmlReader.Create(file.FullName))
return(new ErrorLogEntry(this, id, ErrorXml.Decode(reader)));
}
private void ErrorsXmlToList(XmlReader reader, IList errorEntryList)
{
Debug.Assert(reader != null);
if (errorEntryList != null)
{
while (reader.IsStartElement("error"))
{
string id = reader.GetAttribute("errorId");
Error error = ErrorXml.Decode(reader);
errorEntryList.Add(new ErrorLogEntry(this, id, error));
}
}
}
private ErrorLogEntry LoadErrorLogEntry(string path)
{
using (var reader = XmlReader.Create(path))
{
if (!reader.IsStartElement("error"))
{
return(null);
}
var id = reader.GetAttribute("errorId");
var error = ErrorXml.Decode(reader);
return(new ErrorLogEntry(this, id, error));
}
}
/// <summary>
/// Returns the specified error from the filesystem, or throws an exception if it does not exist.
/// </summary>
public override ErrorLogEntry GetError(string id)
{
try
{
/* Make sure the identifier is a valid GUID */
id = (new Guid(id)).ToString();
}
catch (FormatException e)
{
throw new ArgumentException(e.Message, id, e);
}
/* Get the file folder list - should only return one ever */
DirectoryInfo dir = new DirectoryInfo(LogPath);
FileInfo[] files = dir.GetFiles(string.Format("error-*-{0}.xml", id));
if (files.Length < 1)
{
return(null);
}
FileInfo file = files[0];
if (!IsUserFile(file.Attributes))
{
return(null);
}
XmlTextReader reader = new XmlTextReader(file.FullName);
try
{
Error error = ErrorXml.Decode(reader);
return(new ErrorLogEntry(this, id, error));
}
finally
{
reader.Close();
}
}
/// <summary>
/// Returns a page of errors from the folder in descending order
/// of logged time as defined by the sortable filenames.
/// </summary>
public override int GetErrors(int pageIndex, int pageSize, IList errorEntryList)
{
if (pageIndex < 0)
{
throw new ArgumentOutOfRangeException("pageIndex", pageIndex, null);
}
if (pageSize < 0)
{
throw new ArgumentOutOfRangeException("pageSize", pageSize, null);
}
/* Get all files in directory */
string logPath = LogPath;
DirectoryInfo dir = new DirectoryInfo(logPath);
if (!dir.Exists)
{
return(0);
}
FileSystemInfo[] infos = dir.GetFiles("error-*.xml");
if (infos.Length < 1)
{
return(0);
}
string[] files = new string[infos.Length];
int count = 0;
/* Get files that are not marked with system and hidden attributes */
foreach (FileSystemInfo info in infos)
{
if (IsUserFile(info.Attributes))
{
files[count++] = Path.Combine(logPath, info.Name);
}
}
InvariantStringArray.Sort(files, 0, count);
Array.Reverse(files, 0, count);
if (errorEntryList != null)
{
/* Find the proper page */
int firstIndex = pageIndex * pageSize;
int lastIndex = (firstIndex + pageSize < count) ? firstIndex + pageSize : count;
/* Open them up and rehydrate the list */
for (int i = firstIndex; i < lastIndex; i++)
{
XmlTextReader reader = new XmlTextReader(files[i]);
try
{
while (reader.IsStartElement("error"))
{
string id = reader.GetAttribute("errorId");
Error error = ErrorXml.Decode(reader);
errorEntryList.Add(new ErrorLogEntry(this, id, error));
}
}
finally
{
reader.Close();
}
}
}
/* Return how many are total */
return(count);
}