public async Task <Storage.FileInfo> GetFileInfoAsync(string fileName)
{
if (string.IsNullOrWhiteSpace(fileName))
{
throw new ArgumentException();
}
return(await DataFilesStorage.GetFileInfo(fileName) ?? throw new InvalidOperationException());
}
public IAsyncEnumerable <XmlDocument> GetAsyncChunks(string fileName)
{
return(new XmlDataFilesAsyncEnum(() =>
{
var readStream = DataFilesStorage.GetReadStream(fileName);
return XmlReader.Create(readStream, GetReaderSettings());
}));
}
public async Task <bool> CreateDataFileAsync(string fileName)
{
var xmlDoc = new XmlDocument();
var rootElm = xmlDoc.CreateElement(XmlDataFileNodeNames.Root);
xmlDoc.AppendChild(xmlDoc.CreateXmlDeclaration("1.0", "UTF-8", ""));
xmlDoc.AppendChild(rootElm);
xmlDoc.DocumentElement.SetAttribute("xmlns", XmlDataFileSchemaInfo.TargetNamespace);
xmlDoc.DocumentElement.SetAttribute("xmlns:xs", XmlDataFileSchemaInfo.XmlSchemaInstance);
xmlDoc.DocumentElement.SetAttribute("schemaLocation", XmlDataFileSchemaInfo.XmlSchemaInstance,
string.Concat(XmlDataFileSchemaInfo.TargetNamespace, " ", XmlDataFileSchemaInfo.XmlSchemaFileUrl));
rootElm.IsEmpty = false;
var result = await DataFilesStorage.CreateFileAsync(fileName, Encoding.UTF8.GetBytes(xmlDoc.OuterXml));
return(result);
}
public async Task WriteXmlAsync(string fileName, string xmlStr)
{
if (!DataFilesStorage.Exists(fileName))
{
await CreateDataFileAsync(fileName);
}
var cusXmlDoc = new XmlDocument();
cusXmlDoc.LoadXml(xmlStr);
using var ws = DataFilesStorage.GetWriteStream(fileName);
using var bufferedSt = new BufferedStream(ws, FilesIoOptions.BufferSize);
var cTag = string.Concat("</", XmlDataFileNodeNames.Root, ">");
var buffer = Encoding.UTF8.GetBytes(cusXmlDoc.DocumentElement.InnerXml);
bufferedSt.Position = ws.Length - cTag.Length;
await bufferedSt.WriteAsync(buffer);
await bufferedSt.WriteAsync(Encoding.UTF8.GetBytes(cTag));
}
public async Task <bool> ValidateXmlFile(string fileName)
{
var settings = GetReaderSettings();
using var st = DataFilesStorage.GetReadStream(fileName);
using var reader = XmlReader.Create(st, settings);
var result = true;
try
{
while (await reader.ReadAsync())
{
}
}
catch (Exception ex)
{
result = false;
}
reader.Dispose();
await st.DisposeAsync();
return(result);
}
public async Task <bool> DeleteDataFileAsync(string fileName)
{
return(await DataFilesStorage.DeleteFileAsync(fileName));
}
public async Task <Storage.FileInfo[]> GetFilesInfoAsync()
{
return(await DataFilesStorage.GetFilesInfo());
}
public bool Exists(string fileName)
{
return(DataFilesStorage.Exists(fileName));
}
