Re: change MACRO with text-entry value in CSS Phoebus

[Kacper Kłys via Tech-talk <tech-talk at aps.anl.gov>]

Hi Peter,

Check the function description here:

https://github.com/kasemir/org.csstudio.display.builder/blob/master/org.csstudio.display.builder.runtime/src/org/csstudio/display/builder/runtime/script/PVUtil.java

"getString" method takes pv object as parameter, not string with the 
name of PV.

I believe that should solve your problem.

Cheers,

Kacper

W dniu 02.09.2020 o 12:54, Peter Leban via Tech-talk pisze:
> Hello,
>
> I'm working on the GUI in CSS Phoebus where I have a macro that 
> specifies the IOC name (IOCname='llrf10'). All panels open from the 
> main one and the macro is inherited.
>
> Instead of having the macro defined as a property of the main panel, 
> I'd like to have a text-entry field in the main panel where I'd set up 
> the IOC name.
>
> I have an action button with a script (embeddedJs) which shall do the 
> job. However, the script gets stuck in the PVUtil getString call.
>
> This is an excerpt of a simple script (just to check how to read a PV):
>
> *************
> var mypv = PVUtil.getString("llrf10:llrf:version");
> logger.info(mypv);
> *************
>
> The error message:
> *************
> 2020-09-02 11:02:46 WARNING [org.csstudio.display.builder.runtime] 
> Execution of 'JavaScript EmbeddedJs' failed
> org.mozilla.javascript.EvaluatorException: Can't find method 
> org.csstudio.display.builder.runtime.script.PVUtil.getString(string). 
> (EmbeddedJs#14)
>     at 
> org.mozilla.javascript.DefaultErrorReporter.runtimeError(DefaultErrorReporter.java:79)
>     at 
> org.mozilla.javascript.Context.reportRuntimeError(Context.java:1011)
>     at 
> org.mozilla.javascript.Context.reportRuntimeError(Context.java:1064)
>     at 
> org.mozilla.javascript.Context.reportRuntimeError1(Context.java:1027)
>     at 
> org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:145)
>     at 
> org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:45)
>     at org.mozilla.javascript.gen.EmbeddedJs_4._c_script_0(EmbeddedJs:14)
>     at org.mozilla.javascript.gen.EmbeddedJs_4.call(EmbeddedJs)
>     at 
> org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:412)
>     at 
> org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3545)
>     at org.mozilla.javascript.gen.EmbeddedJs_4.call(EmbeddedJs)
>     at org.mozilla.javascript.gen.EmbeddedJs_4.exec(EmbeddedJs)
>     at 
> org.csstudio.display.builder.runtime.script.internal.JavaScriptSupport.lambda$submit$0(JavaScriptSupport.java:84)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at 
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
>     at 
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
>     at java.base/java.lang.Thread.run(Thread.java:832)
>
> *************
>
> Could you advise the correct use of the PVUtil.getString function?
>
> Finally, my text-entry field will have a 'loc://myname' PV which I 
> intend to read in the script and assign it to the "IOCname" macro.
>
> Thanks,
> Peter