/// <summary>
/// Query the data object from associated to the <see cref="ExternalObject"/>
/// </summary>
/// <param name="externalObject">
/// The <see cref="ExternalObject"/> that holds a reference to the data
/// </param>
/// <param name="token">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>
/// a Base64 encoded string that can be used in an HTML image element
/// </returns>
/// <remarks>
/// The <see cref="ReqIFLoaderService"/> caches the data for fast
/// </remarks>
public async Task <string> QueryData(ExternalObject externalObject, CancellationToken token)
{
if (externalObject == null)
{
throw new ArgumentNullException($"The {nameof(externalObject)} may not be null");
}
if (externalObjectDataCache.TryGetValue(externalObject, out var result))
{
this.logger.LogDebug("External Object {uri} retrieved from Cache", externalObject.Uri);
return(result);
}
var stream = await this.GetSourceStream(token);
var targetStream = new MemoryStream();
externalObject.QueryLocalData(stream, targetStream);
result = $"data:{externalObject.MimeType};base64,{Convert.ToBase64String(targetStream.ToArray())}";
if (this.externalObjectDataCache.TryAdd(externalObject, result))
{
this.logger.LogDebug("External Object {uri} added to Cache", externalObject.Uri);
}
return(result);
}
private static ExternalObject FillExternalFileData(string[] lines)
{
bool isValid = false;
ExternalObject saObj = new ExternalObject();
foreach (string line in lines)
{
if (line.Contains("E_StringConn"))
{
string value = line.Substring(line.IndexOf("=") + 1).Trim();
isValid = value != string.Empty && value != "?";
saObj.StringConn = line.Substring(line.IndexOf("=") + 1).Trim();
}
if (line.Contains("E_PATH_XML_FILE"))
{
string value = line.Substring(line.IndexOf("=") + 1).Trim();
isValid = value != string.Empty && value != "?";
saObj.path = line.Substring(line.IndexOf("=") + 1).Trim();
}
}
saObj.IsValid = isValid;
return(saObj);
}
/// <summary>
/// Creates the url of a <see cref="ExternalObject"/>
/// </summary>
/// <param name="externalObject">
/// The <see cref="ExternalObject"/> of which the url is to be created
/// </param>
/// <returns>
/// a string that represents the web-app url
/// </returns>
public static string CreateUrl(this ExternalObject externalObject)
{
var url = new StringBuilder();
url.Append($"/reqif/{externalObject.Owner.SpecElAt.ReqIFContent.DocumentRoot.TheHeader.Identifier}");
url.Append($"/externalobject/{externalObject.Uri.Base64Encode()} ");
return(url.ToString());
}
public async Task <ExternalObject> ModifyExternalObject(ExternalObject external)
{
using (var stream = new StreamReader($"{AppDomain.CurrentDomain.BaseDirectory}\\Languages.json"))
{
var json = await stream.ReadToEndAsync();
var results = System.Text.Json.JsonSerializer.Deserialize <List <LanguageInfo> >(json, new System.Text.Json.JsonSerializerOptions {
PropertyNameCaseInsensitive = true
});
return(new ExternalObject
{
Language = results.First(l => l.Culture == external.Language).Culture
});
}
}
private static ListObjectInfo ReadConfigFile()
{
string[] lines = File.ReadAllLines("config.txt");
StudentAuthObj studentAuthObj = FillAuthenticationFileData(lines);
StudentObj studentObj = FillStudentFileData(lines);
ExternalObject externalObject = FillExternalFileData(lines);
return(new ListObjectInfo
{
StudentAuthObj = studentAuthObj,
StudentObj = studentObj,
ExternalObject = externalObject
});
}
private static void CreateXMLFile(ExternalObject externalObject)
{
XmlDocument doc = new XmlDocument();
doc.Load(externalObject.path);
XmlNodeList nodeList = doc.GetElementsByTagName("connectionStrings");
foreach (XmlNode item in nodeList.Item(0).ChildNodes)
{
var log = (XmlNode)item.Attributes.GetNamedItem("name");
if (log.Value.Equals("CORE_CONNECTION"))
{
item.Attributes.GetNamedItem("connectionString").Value = externalObject.StringConn;
}
}
doc.Save(externalObject.path);
}
public override ConsoleMenuReport Execute()
{
ExternalObject externalObject = new ExternalObject()
{
SomeInt = 50, SomeString = "Initial string"
};
ConsoleMenuOperation[] menuOperations = new ConsoleMenuOperation[3]
{
new SubProgram2.Operation_ChangeObjectsInt(externalObject),
new SubProgram2.Operation_ChangeObjectsString(externalObject),
new SubProgram2.Operation_CloseSubProgram2()
};
ConsoleMenu subMenu2 = new ConsoleMenu("Sub Program 2:", menuOperations, externalObject.ToString());
subMenu2.Run();
return(new ConsoleMenuReport("Sub program 2 has been closed.", this.ToString(), Request.Suspend));
}
public Operation_ChangeObjectsString(ExternalObject externalObject) : base()
{
this.externalObject = externalObject;
}
public SomeProxy(ExternalObject obj)
{
_obj = obj;
}
public void SetUp()
{
this.externalObject = new ExternalObject(null);
}
public C() : base()
{
// This happens *after* the base-class constructor.
this.external = new ExternalObject();
}
public Task <ExternalObject> ModifyExternalObject(ExternalObject external)
{
var methodInfo = typeof(IExternalService).GetMethod(nameof(ModifyExternalObject));
return(PrisePluginBridge.Invoke(this.hostService, methodInfo, external) as Task <ExternalObject>);
}
