According to Phillip Riand (see: discussion on openNTF) this is not possible... They need to know the design element to find out who signed it. Therefore, it is only available in SSJS.
There are 2 ways that I know of to use the sessionAsSigner object in Java beans:
1 By resolving the sessionAsSigner object:
FacesContext context = FacesContext.getCurrentInstance();
Session sessionAsSigner = context.getApplication().getVariableResolver().
resolveVariable(context, "sessionAsSigner");
2 By using the getCurrentSessionAsSigner() function from the com.ibm.xsp.extlib.util.ExtLibUtil class in the Extension Library.
To be able to use it (in Java as wel as SSJS) you'll want to make sure that all design elements were signed by the same user ID. If that's not the case, the sessionAsSigner object will not be available ('undefined').
I found that the solution is right at hand :-)
I changed my XPage (in this example an XAgent) to:
<xp:view xmlns:xp="http://www.ibm.com/xsp/core" rendered="false">
This is an xAgent returning json data...
<xp:this.afterRenderResponse><![CDATA[#{javascript:Controller.verify(sessionAsSigner)}]]></xp:this.afterRenderResponse>
and in the bean I simply used the session in the argument when I needed to open a database/document as signer. Sometimes the solution is so simple :-)
/John
This is quite an old post that I just stumbled upon. Tried some of the solutions mentioned above:
resolveVariable did not work for me, at least not for sessionAsSigner as this throws a runtime error (I can resolve plain old session, though...)
to be honest I didn't quite understand the Controller.verify(sessionAsSigner) method; is Controller something specific to XAgents? If so, I don't have an XAgent here, so can't use it
didn't feel like importing extra ExtLib classes here...
So I came up with another solution that appears to be very simple:
created a method in my javaBean that takes a session object as argument; since sessionAsSigner belongs to the same class as session I don't have to import something new.
Javacode is:
public void testSession(Session s) throws Exception{
System.out.println(" > test effective user for this session = "
+ s.getEffectiveUserName());
}
This is called from SSJS as either
mybean.testSession(session);
or
myBean.testSession(sessionAsSigner);
Maybe helps others, too
Related
I am very new to Activiti BPMN. I am creating a flow diagram in activiti. I m looking for how username (who has completed the task) can be pass into shell task arguments. so that I can fetch and save in db that user who has completed that task.
Any Help would be highly appreciated.
Thanks in advance...
Here's something I prepared for Java developers based on I think a blog post I saw
edit: https://community.alfresco.com/thread/224336-result-variable-in-javadelegate
RESULT VARIABLE
Option (1) – use expression language (EL) in the XML
<serviceTask id="serviceTask"
activiti:expression="#{myService.toUpperCase(myVar)}"
activiti:resultVariable="myVar" />
Java
public class MyService {
public String toUpperCase(String val) {
return val.toUpperCase();
}
}
The returned String is assigned to activiti:resultVariable
HACKING THE DATA MODEL DIRECTLY
Option (2) – use the execution environment
Java
public class MyService implements JavaDelegate {
public void execute(DelegateExecution execution) throws Exception {
String myVar = (String) execution.getVariable("myVar");
execution.setVariable("myVar", myVar.toUpperCase());
}
}
By contrast here we are being passed an ‘execution’, and we are pulling values out of it and twiddling them and putting them back.
This is somewhat analogous to a Servlet taking values we are passed in the HTMLRequest and then based on them doing different things in the response. (A stronger analogy would be a servlet Filter)
So in your particular instance (depnding on how you are invoking the shell script) using the Expression Language (EL) might be simplest and easiest.
Of course the value you want to pass has to be one that the process knows about (otherwise how can it pass a value it doesn't have a variable for?)
Hope that helps. :D
Usually in BPM engines you have a way to hook out listener to these kind of events. In Activiti if you are embedding it inside your service you can add an extra EventListener and then record the taskCompleted events which will contain the current logged in user.
https://www.activiti.org/userguide/#eventDispatcher
Hope this helps.
I have used activiti:taskListener from activiti app you need to configure below properties
1. I changed properties in task listener.
2. I used java script variable for holding task.assignee value.
Code Snip:-
I'm using Jmeter to design a test that requires data to be randomly read from text files. To save memory, I have set up a "setUp Thread Group" with a BeanShell PreProcessor with the following:
//Imports
import org.apache.commons.io.FileUtils;
//Read data files
List items = FileUtils.readLines(new File(vars.get("DataFolder") + "/items.txt"));
//Store for future use
props.put("items", items);
I then attempt to read this in my other thread groups and am trying to access a random line in my text files with something like this:
(props.get("items")).get(new Random().nextInt((props.get("items")).size()))
However, this throws a "Typed variable declaration" error and I think it's because the get() method returns an object and I'm trying to invoke size() on it, since it's really a List. I'm not sure what to do here. My ultimate goal is to define some lists of data once to be used globally in my test so my tests don't have to store this data themselves.
Does anyone have any thoughts as to what might be wrong?
EDIT
I've also tried defining the variables in the setUp thread group as follows:
bsh.shared.items = items;
And then using them as this:
(bsh.shared.items).get(new Random().nextInt((bsh.shared.items).size()))
But that fails with the error "Method size() not found in class'bsh.Primitive'".
You were very close, just add casting to List so the interpreter will know what's the expected object:
log.info(((List)props.get("items")).get(new Random().nextInt((props.get("items")).size())));
Be aware that since JMeter 3.1 it is recommended to use Groovy for any form of scripting as:
Groovy performance is much better
Groovy supports more modern Java features while with Beanshell you're stuck at Java 5 level
Groovy has a plenty of JDK enhancements, i.e. File.readLines() function
So kindly find Groovy solution below:
In the first Thread Group:
props.put('items', new File(vars.get('DataFolder') + '/items.txt').readLines()
In the second Thread Group:
def items = props.get('items')
def randomLine = items.get(new Random().nextInt(items.size))
I am getting "Unable to determine the identity of domain" when using System.IO.Packaging through COM Interop, there are a few articles describing why this is happening and the solution is to run the offending function in its own AppDomain.
So I took the sample code, which looks like the below but I still get the error, I am wondering what i am doing wrong and also, with VS 2010 it says AddAssembly and AddHost are obsolete - I wonder if that means they are no longer implemented, but if thats the case I dont really understand how to use the new methods (AddAssemblyEvidence and AddHostEvidence)??
AppDomainSetup setup = new AppDomainSetup();
setup.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;
Evidence evidence = new Evidence(AppDomain.CurrentDomain.Evidence);
evidence.AddAssembly(Assembly.GetExecutingAssembly().FullName);
evidence.AddHost(new Zone(SecurityZone.MyComputer));
AppDomain domain = AppDomain.CreateDomain("BlobPackage", evidence, setup);
BlobPackage blob_interal = (BlobPackage)domain.CreateInstanceAndUnwrap(typeof(BlobPackage).Assembly.FullName, typeof(BlobPackage).FullName);
blob_interal.pack(FilePath, RootPath, m_source_files); <-- STILL FAILS
AppDomain.Unload(domain);
I solved this one myself, I forgot to inherit my class from MarshalByRefObject.
Its a bit stupid, it allows you to create an instance and call it except its still running in the default domain, you would think it would throw an exception or something, anyway by marking the class as [Serializable()] and deriving from MarshalByRefObject fixes it.
I am trying to get a Singleton instance working with Autofac. I'm kind of doing a quasi-mvvm type thing with Winforms, just an experiment so don't get to hung up on that. But I am trying you have my model be a single instance with a reference in a command (ICommand here is not the WPF variety):
I have the following setup of a container:
var cb = new ContainerBuilder();
cb.RegisterType<CalculateCommissionCommand>().As<ICommand<TradeEntry>>().SingleInstance();
cb.RegisterType<CalculationsModel>().As<ICalculationsModel>().SingleInstance();
cb.Register(c => new CalculationsView() { Model = c.Resolve<ICalculationsModel>() }).SingleInstance();
cb.Build();
Now the Command takes an ICalculationsModel as a constructor parameter. However, when I set a value in the Model being passed to the Command, that value does not appear within the model that has already been set withing the CalculationsView. It seems that the command and the view are being passed different instances of the CalculationsModel despite the "singleInstance" method being called. Am I missing something? Why is this happening?
We hit a similar problem today and this seems to be the only post where this question is asked, so I thought I'd share our experience in the hopes it helps someone out. In the end it was something right in front of our eyes and of course they're usually the hardest problems to solve :-).
In our scenario, we were:
Registering a specific implementation of a configuration provider
Auto-registering certain types within an assembly.
Something along these lines:
var cb = new ContainerBuilder();
cb.RegisterType<FileBasedConfigurationProvider>()
.As<IConfigurationProvider>()
.SingleInstance();
cb.RegisterAssemblyTypes(typeof(MailProvider).Assembly)
.Where(t => !t.IsAbstract && t.Name.EndsWith("Provider"))
.AsImplementedInterfaces();
Stupidly, we didn't think about/realise that the FileBasedConfigurationProvider was in the same assembly as the MailProvider, so the second registration call basically overwrote the first one; hence, SingleInstance "wasn't working".
Hope that helps someone else out!
It's not clear from your code how you are storing/using the container. It is likely you have created multiple containers.
In my case the problem was that the parameter to the method generating the second instance was defined as the class instead of the interface
i.e.
SomeMethod(ClassName parameter)
instead of
SomeMethod(**I**ClassName parameter)
Obvious mistake, but took a few minutes to see it.
In my case I had two registrations for a class for different interfaces declaring that each was single instance. I assumed there would be a single instance of the class... no there's a single instance for each registration.
e.g
builder.RegisterType<MyClass>().As<IMyFirstInterface>().SingleInstance(); // 1st instance
builder.RegisterType<MyClass>().As<IMySecondInterface>().SingleInstance(); // 2nd instance
The correct way to do this was...
builder
.RegisterType<MyClass>()
.As<IMyFirstInterface>()
.As<IMySecondInterface>()
.SingleInstance();
I am trying to do the following bootstrapping:
x.For(Of IErrorLogger).Use(Of ErrorLogger.SQLErrorLogger)().
Ctor(Of IErrorLogger)("backupErrorLogger").Is(ObjectFactory.GetNamedInstance(Of IErrorLogger)("Disk"))
x.For(Of IErrorLogger).Add(
Function()
Return New ErrorLogger.DiskErrorLogger(
CreateErrorFileName(ServerMapPath(GetAppSetting("ErrorLogFolder"))))
End Function).Named("Disk")
But it shows this error:
StructureMap Exception Code: 200
Could not find an Instance named "Disk" for PluginType Logging.IErrorLogger
I sort of understand why this is happening.. the question is, how do I utilize a named instance within the registry? Maybe something like lazy initialization for the ctor argument for the SQLErrorLogger? I am not sure how to make it happen.
Thanks in advance for any help you can provide.
I found the correct way to do it in the latest version (2.6.1) of StructureMap:
x.For(Of IErrorLogger).Use(Of ErrorLogger.SQLErrorLogger)().
Ctor(Of IErrorLogger)("backupErrorLogger").Is(
Function(c) c.ConstructedBy(Function() ObjectFactory.GetNamedInstance(Of IErrorLogger)("Disk"))
)
x.For(Of IErrorLogger).Add(Function() _
New ErrorLogger.DiskErrorLogger(
CreateErrorFileName(ServerMapPath(GetAppSetting("ErrorLogFolder"))))
).Named("Disk")
Notice for the Is method of Ctor, we need to provide a func(IContext), and use the IContext.ConstructedBy(Func()) to call ObjectFactory.Get... to successfully register the IErrorLogger in this case.
This is the only way to do it as far as I know. The other Icontext methods such as IsThis and Instance will only work with already registered type.
Your problem is that you are trying to access the Container before it's configured. In order to make structuremap evaluate the object resolution after the configuration you need to provide a lambda to the Is function. The lambda will be evaluated when trying to resolve the type registered.
x.[For](Of ILogger)().Add(Of SqlLogger)().Ctor(Of ILogger)("backupErrorLogger")_
.[Is](Function(context) context.GetInstance(Of ILogger)("Disk"))
x.[For](Of ILogger)().Add(Of DiskLogger)().Ctor(Of String)("errorFileName")_
.[Is](CreateErrorFileName(ServerMapPath(GetAppSetting("ErrorLogFolder"))))_
.Named("Disk")
Disclaimer: I'm not completely up-to-date with the lambda syntax in VB.NET, but I hope I got it right.
Edit:
The working C# version of this I tried myself before posting was this:
ObjectFactory.Initialize(i =>
{
i.For<ILogger>().Add<SqlLogger>()
.Ctor<ILogger>("backup").Is(
c => c.GetInstance<ILogger>("disk"))
.Named("sql");
i.For<ILogger>().Add<DiskLogger>().Named("disk");
});
var logger = ObjectFactory.GetNamedInstance<ILogger>("sql");