I'm currently using the Jint.NET JavaScript console engine for C#, and I'm attempting to emulate separate JavaScript environments that the user can switch between.
However, I don't want to create an entirely new console engine for each JavaScript environment and cause a large overhead, instead just switch between them using a single engine and store the environments somewhere else, eg:
engine 1
| |
| |
env 1 env 2
Is it possible to do this?
Found a solution to this, although there's no documentation for this anywhere that I can find, so this may be an unintended method. You need to use EnterExecutionContext on newly created LexicalEnvironments, and you can switch between them to have separate JS environments.
Here's an example:
using Jint.Runtime.Environments;
using Jint.Native.Object;
using Jint.Native.Global;
//Create a new object instance and environment.
JSObjectInstance = GlobalObject.CreateGlobalObject(jintEngine);
JSEnvironment = LexicalEnvironment.NewObjectEnvironment(jintEngine, JSObjectInstance, jintEngine.GlobalEnvironment, false);
//Enter the new environment.
jintEngine.EnterExecutionContext(JSEnvironment, JSEnvironment, new Jint.Native.JsValue(false));
And when you're done with that environment, you can leave using LeaveExecutionContext, and rejoin the default global one like so:
jintEngine.EnterExecutionContext(jintEngine.GlobalEnvironment, jintEngine.GlobalEnvironment, jintEngine.Global);
Related
I'm new in OPC-UA. I looked into the reference SDK and some online tutorial.
I'm creating a OPC-UA server for a simulation of an industrial machine.
I created my xml model with some motors and sensors. They both have an AnalogItemType variable.
I'm taking the motor in example:
<opc:ObjectType SymbolicName="Motor" BaseType="ua:BaseObjectType">
<opc:Description>A motor.</opc:Description>
<opc:Children>
<opc:Variable SymbolicName="Speed" DataType="ua:Double" ValueRank="Scalar" TypeDefinition="ua:AnalogItemType" AccessLevel="ReadWrite" />
<opc:Method SymbolicName="Start" ModellingRule="Mandatory"></opc:Method>
<opc:Method SymbolicName="Stop" ModellingRule="Mandatory"></opc:Method>
</opc:Children>
</opc:ObjectType>
I use the UA.ModelCompiler (from OPC-UA Foundation) to compile the xml and generate the code for the server.
I use the Reference client in the Reference SDK.
When I run my server, I can see only the EURange property of the AnalogItem and not the EngineeringUnits (both should be optional and not mandatory).
I tried to set both in my NodeManager.cs :
Server.Motor.Speed.EURange.Value = new Opc.Ua.Range() {Hingh = 900, Low = 100};
Server.Motor.Speed.EngineeringUnits.Value = new EUInformation("rad", "radiants", "http://www.opcfoundation.org/UA/units/un/cefact");
The first instruction is ok but the second throws an exception because, it says, the EngineeringUnits is null (while the EURange is of type [Variable]EURange).
How can I set the EngineeringUnits (and maybe diable EURange) in my C# code?
How can I enable the EngineeringUnits (and maybe diable EURange) in the MyModelDesign.xml?
I have a batch and want to rebuild this in a .net application. How can I handle this in .net?
-xsl:"style.xsl" resource-path="%runtimepath%%respath%" srcAutotexte="%runtimepath%%respath%\autotext\autotext.xml"
My attempt. How can I include the autotext.xml?
// Create a transformer for the stylesheet.
XsltCompiler compiler = processor.NewXsltCompiler();
compiler.BaseUri = new Uri(styleXslFilePath);
XsltTransformer transformer = compiler.Compile(File.OpenRead(styleXslFilePath)).Load();
The command line options
resource-path="%runtimepath%%respath%"
srcAutotexte="%runtimepath%%respath%\autotext\autotext.xml"
set the values of stylesheet parameters in the transformation.
The equivalent when using the Saxon.Api interface is to call
transformer.SetParameter(
new QName("resource-path"),
new XdmAtomicValue("%runtimepath%%respath%"));
etc.
(Perhaps your shell interprets %xxxx% as a reference to a shell/system variable of some kind - it's a long time since I wrote batch scripts under Windows. If that's the case then you'll need to get hold of the values of these variables. You can do that at the C# level using the .NET API, or you might be able to do it from within XSLT 3.0 using the environment-variable() function.)
First of, I am completely new to octopus client, used it for the first time just before posting this.
So, I've been landed with this project to update the version number on a webpage monitoring some of our octopus deployed projects. I have been looking around the octopus client and not really gotten anywhere. The best I have so far is:
OctopusServerEndpoint endPoint = new OctopusServerEndpoint(server, apiKey);
OctopusRepository repo = new OctopusRepository(endPoint);
var releases = repo.Releases.FindAll();
From these releases I can get the ProjectId and even the Version, the issue is that releases is 600 strong and I am only looking for 15 of them.
The existing code I have to work from used to parse the version from local files so that is all out the window. Also, the existing code only deals with the actual names of the projects, like "AWOBridge", not their ProjectId, which is "Projects-27".
Right now my only option is to manually write up a keyList or map to correlate the names I have with the IDs in the octopus client, which I of course rather not since it is not very extendable or good code practice in my opinion.
So if anyone has any idea on how to use the names directly with octopus client and get the version number from that I would very much appriciate it.
I'll be getting down into octopus client while waiting. Let's see if I beat you to it!
Guess I beat you to it!
I'll just leave an answer here if anyone ever has the same problem.
I ended up using the dashboardto get what I needed:
OctopusServerEndpoint endPoint = new OctopusServerEndpoint(server, apiKey);
OctopusRepository repo = new OctopusRepository(endPoint);
DashboardResource dash = repo.Dashboards.GetDashboard();
List<DashboardItemResource> items = dash.Items;
DashboardItemResource item = new DashboardItemResource();
List<DashboardProjectResource> projs = dash.Projects;
var projID = projs.Find(x => x.Name == projectName).Id;
item = items.Find(x => x.ProjectId == projID && x.IsCurrent == true);
The dashboard is great since it contains all the info that the web dashboard shows. So you can use Project, Release, Deployment and Environment with all the information they contain.
Hope this helps someone in the future!
I'm using LINQPad to run C# snippets for Octopus automation using the Octopus Client library and I have come up with following to get any version of a project making use of Regular expression pattern. It works quite well if you use Pre-release semantic versioning.
For example to get latest release for a project:
var project = Repo.Projects.FindByName("MyProjectName");
var release = GetReleaseForProject(project);
To get specific release use that has 'rc1' in the version for example (also useful if you use source code branch name in the version published to Octopus:
var release = GetReleaseForProject(project, "rc1");
public ReleaseResource GetReleaseForProject(ProjectResource project, string versionPattern = "")
{
// create compiled regex expression to use for search
var regex = new Regex(versionPattern, RegexOptions.Compiled | RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
var releases = Repo.Projects.GetReleases(project);
if (!string.IsNullOrWhiteSpace(versionPattern) && !releases.Items.Any(r => regex.IsMatch(r.Version)))
{
return null;
}
return (!string.IsNullOrWhiteSpace(versionPattern)) ? releases.Items.Where(r => regex.IsMatch(r.Version))?.First() : releases.Items?.First();;
}
I wish to create multiple mailcontacts (external Contacts) in the GAL in Microsoft Online by running Powershell command from C#. The code below works, but is very slow and takes about 15-20 min to run for 400 mailcontacts.
foreach(EmailAdressVM emailAddressVM in emailList.emailAddresses1)
{
//Create New MailContact.
Pipeline pplNewMailContact = runspace.CreatePipeline();
Command cmdNewMailContact = new Command("New-MailContact");
cmdNewMailContact.Parameters.Add("Name", emailAddressVM.sExternalEmailAddress);
cmdNewMailContact.Parameters.Add("Displayname", emailAddressVM.sFullName.Trim());
cmdNewMailContact.Parameters.Add("Lastname", emailAddressVM.sLastName.Trim());
cmdNewMailContact.Parameters.Add("Firstname", emailAddressVM.sFirstName.Trim());
cmdNewMailContact.Parameters.Add("ExternalEmailAddress", emailAddressVM.sExternalEmailAddress.Trim());
pplNewMailContact.Commands.Add(cmdNewMailContact);
pplNewMailContact.Invoke();
pplNewMailContact.Stop();
pplNewMailContact.Dispose();
}
I am guessing that this is slow since I create a new Pipeline for every new mailcontact that is added and there has to be a more eficient way of doing this since running...
import-csv <filename> | ForEach {
new-mailcontact -name $_.emailaddress -displayname $_.FullName -lastname $_.lastname -firstname $_.firstname -externalemailaddress $_.emailaddress -alias $_.alias
}
...is much faster.
I have found some references after many hours of searching the web that you can do something similar to using a CSV when running Powershell commands from C#, i.e. send a list (or array) of values to a command (in this case the "new-mailcontact" command). But, I have not found any good example of how to send more than one value to a command and I need to supply many values (for example: -name $.emailAddress -displayname $.FullName, etc.) to the "new-mailcontact" command.
Is it possible to send a list (or array) in a similar way as the "import-csv" command (when using regular powershell) and will this be faster, or is there an evan better way? Would I get better performance if I use Powershell 3 instead of 1 (as I am using now).
Please provide working sample code i C#!
Please note that I cannot save a CSV file to disk and the execute powershell from CMD since I do not have write access to disk and that I do not think that I can run an entire script remotely (since remote scripting probably is disabled on Exchange Online).
The biggest reason I would think is because for each address you are creating a new Powershell instance and you are not multithreaded.
You code looks something like this from above:
Foreach email address{
Declare a new Powershell process
Add attributes to call later
Start Powershell and pipe stuff in
Close Powershell instance
}
I think you would be better off creating the Powershell instance / pipe once and then sending each object into it. More along the lines of:
Create PS Pipe
Foreach email address{
PS.SendArguments(Email, Name, DN, etc.);
}
I am not in an environment to get something working or tested right now, so hopefully this gives you at least most of what you need...
I just found out about NRefactory 5 and I would guess, that it is the most suitable solution for my current problem. At the moment I'm developing a little C# scripting application for which I would like to provide code completion. Until recently I've done this using the "Roslyn" project from Microsoft. But as the latest update of this project requires .Net Framework 4.5 I can't use this any more as I would like the app to run under Win XP as well. So I have to switch to another technology here.
My problem is not the compilation stuff. This can be done, with some more effort, by .Net CodeDomProvider as well. The problem ist the code completion stuff. As far as I know, NRefactory 5 provides everything that is required to provide code completion (parser, type system etc.) but I just can't figure out how to use it. I took a look at SharpDevelop source code but they don't use NRefactory 5 for code completion there, they only use it as decompiler. As I couldn't find an example on how to use it for code completion in the net as well I thought that I might find some help here.
The situation is as follows. I have one single file containing the script code. Actually it is not even a file but a string which I get from the editor control (by the way: I'm using AvalonEdit for this. Great editor!) and some assemblies that needs to get referenced. So, no solution files, no project files etc. just one string of source code and the assemblies.
I've taken a look at the Demo that comes with NRefactory 5 and the article on code project and got up with something like this:
var unresolvedTypeSystem = syntaxTree.ToTypeSystem();
IProjectContent pc = new CSharpProjectContent();
// Add parsed files to the type system
pc = pc.AddOrUpdateFiles(unresolvedTypeSystem);
// Add referenced assemblies:
pc = pc.AddAssemblyReferences(new CecilLoader().LoadAssemblyFile(
System.Reflection.Assembly.GetAssembly(typeof(Object)).Location));
My problem is that I have no clue on how to go on. I'm not even sure if it is the right approach to accomplish my goal. How to use the CSharpCompletionEngine? What else is required? etc. You see there are many things that are very unclear at the moment and I hope you can bring some light into this.
Thank you all very much in advance!
I've just compiled and example project that does C# code completion with AvalonEdit and NRefactory.
It can be found on Github here.
Take a look at method ICSharpCode.NRefactory.CSharp.CodeCompletion.CreateEngine. You need to create an instance of CSharpCompletionEngine and pass in the correct document and the resolvers. I managed to get it working for CTRL+Space compltition scenario. However I am having troubles with references to types that are in other namespaces. It looks like CSharpTypeResolveContext does not take into account the using namespace statements - If I resolve the references with CSharpAstResolver, they are resolved OK, but I am unable to correctly use this resolver in code completition scenario...
UPDATE #1:
I've just managed to get the working by obtaining resolver from unresolved fail.
Here is the snippet:
var mb = new DefaultCompletionContextProvider(doc, unresolvedFile);
var resolver3 = unresolvedFile.GetResolver(cmp, loc); // get the resolver from unresolvedFile
var engine = new CSharpCompletionEngine(doc, mb, new CodeCompletionBugTests.TestFactory(resolver3), pctx, resolver3.CurrentTypeResolveContext );
Update #2:
Here is the complete method. It references classes from unit test projects, sou you would need to reference/copy them into your project:
public static IEnumerable<ICompletionData> DoCodeComplete(string editorText, int offset) // not the best way to put in the whole string every time
{
var doc = new ReadOnlyDocument(editorText);
var location = doc.GetLocation(offset);
string parsedText = editorText; // TODO: Why there are different values in test cases?
var syntaxTree = new CSharpParser().Parse(parsedText, "program.cs");
syntaxTree.Freeze();
var unresolvedFile = syntaxTree.ToTypeSystem();
var mb = new DefaultCompletionContextProvider(doc, unresolvedFile);
IProjectContent pctx = new CSharpProjectContent();
var refs = new List<IUnresolvedAssembly> { mscorlib.Value, systemCore.Value, systemAssembly.Value};
pctx = pctx.AddAssemblyReferences(refs);
pctx = pctx.AddOrUpdateFiles(unresolvedFile);
var cmp = pctx.CreateCompilation();
var resolver3 = unresolvedFile.GetResolver(cmp, location);
var engine = new CSharpCompletionEngine(doc, mb, new CodeCompletionBugTests.TestFactory(resolver3), pctx, resolver3.CurrentTypeResolveContext );
engine.EolMarker = Environment.NewLine;
engine.FormattingPolicy = FormattingOptionsFactory.CreateMono();
var data = engine.GetCompletionData(offset, controlSpace: false);
return data;
}
}
Hope it helps,
Matra
NRefactory 5 is being used in SharpDevelop 5. The source code for SharpDevelop 5 is currently available in the newNR branch on github. I would take a look at the CSharpCompletionBinding class which has code to display a completion list window using information from NRefactory's CSharpCompletionEngine.