Hi,
I am trying to use the StreamingTemplateEngine to create dynamic
markdown (similarly to the rmd (r markdown,
https://rmarkdown.rstudio.com/authoring_quick_tour.html) but I've
encountered a snag:
Simple usage such as the following works fine using the
StreamingTemplateEngine:
def text
her out.println "- " +
dayName(day) + ": " + weather.first() } %> """.stripIndent() def engine = new StreamingTemplateEngine() def template =
engine.createTemplate(text) println template.make()
On 7/23/22 19:59, Per Nyfelt wrote:
Hi,
I am trying to use t
t;Cloudy", "Windy" ] Const.days.times
{ out.println "- " + dayName(now + it) + ": " + weather.shuffled()[0]
} %> """.stripIndent()
def engine =new groovy.text.SimpleTemplateEngine()
def template =engine.createTemplate(text)
printlntemplate.make
/spec/test/org/apache/groovy/ginq/GinqTest.groovy#L4789
Cheers,
Daniel Sun
On 2024/10/05 17:16:02 Per Nyfelt wrote:
Hi, I am trying to learn Ginq and are having problems with joining an
aggregation functions.
The following example illustrates the issue:
import java.time.LocalDate
class
orderby w.name in desc select w.name, sum(w.price)
}
assert [['Orange',22.0], ['Banana',4.0]] == q2.toList()
I submitted a feature request in Jira to support use of join, groupby and
aggregate functions together.
Regards,
Per
On 10/5/24 19:16, Per Nyfelt wrote:
Hi, I am trying
Hi, I am trying to learn Ginq and are having problems with joining an
aggregation functions.
The following example illustrates the issue:
import java.time.LocalDate
class Warehouse {
int id
String name
Double price
int stock
Warehouse(int id, String name, Double price, int
can create a nested statement and do it all at once
def qSum = GQ {
from n in (
from s in sales
join w in warehouse on w.id<http://w.id/> == s.item
select w.name<http://w.name/>, w.price)
groupby n.name<http://n.name/>
select n.name<http://n.n
ent=webmail>
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail;>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
On Mon, Oct 28, 2024 at 4:02 AM Per Nyfelt mailto:p...@alipsa.se>> wrote:
>
> Hi,
>
> I
Hi,
Is it possible to override plus equals (+=) for a class?
I have a class the is want plus to be immutable and plusEquals to be
mutable e.g:
def newMatrix = myMatrix + additionalRows
assert myObj == myMatrix - additionalRows
myMatrix += additionalRows
assert myMatrix == newMatrix
Sinc
You have a scope problem and need to move the logger declaration into
your A class. Also if slf4j is not available in your classpath, @Grab is
your friend.
The following works when running the script in the GroovyScriptEngine:
@Grab('org.slf4j:slf4j-simple:2.0.16')
import org.slf4j.LoggerFacto
Is there a way to use the NV macro to get to the original name when used
in a method?
```groovy
class Person {
int id
String Name
Person(int id, String name) {
this.id = id
this.name=name
}
}
def per = new Person(1, 'Per')
println "The person object is named ${NV(per).name}"
d
ich may or
may not be feasible in your case:
@Grab('org.slf4j:slf4j-simple:2.0.16')
import org.slf4j.LoggerFactory
import org.slf4j.Logger
logger = LoggerFactory.getLogger("l")
def c = {
logger.info("L")
}
c.call()
On 9/23/24 22:17, Per Nyfelt wrote:
You h
Hi,
One of the companies i work for has moved to Google Artifact Registry
(GAR) which does not work well with @Grab so I am attempting to write an
alternative that uses maven (with some extensions handling GAR
communication) for dependency resolution.
My problem is that in order for this to
above might also work. The
advantage of using Grab is that it is already plumbed into the
compilation process (in terms of adding to the classpath when needed).
Hopefully I will get back to looking at that again soon.
Paul.
On Sun, Jan 12, 2025 at 8:45 PM Per Nyfelt mailto:p...@alipsa.se>&
;$javafxVersion",classifier:"$classifier")
Grape.grab(group:'org.openjfx',module:'javafx-web',version:"$javafxVersion",classifier:"$classifier")
Grape.grab(group:'org.openjfx',module:'javafx-media',version:"$javafxVersio
Hi,
I have a javafx application published to a nexus server that I want to
launch from a groovy script.
The application has javafx jar defined as compileOnly (provided in maven
lingo) so javafx must be added to the classpath.
When i use a full jdk that includes javafx the applicaton works g
Hi, is it possible to use boms in @Grab?
I tried the following in a groovy script:
#!/usr/bin/env groovy @Grab(group='se.alipsa.matrix', module='matrix-bom',
version='2.2.0', type='pom')
@Grab('se.alipsa.matrix:matrix-core')
import se.alipsa.matrix.core.*
import java.util.time.*
import java.t
/jars
jars:
0. matrix-core-3.2.0.jar
matrix-core-3.1.0.jar was NOT found in
/home/per/.groovy/grapes/se.alipsa.matrix/matrix-core/jars
So it confirms that not specifying a version causes Grab to fetch
whatever latest version it can find in maven central ignoring the bom.
On 4/22/25 20:23,
Hi,
Maybe this is of interest to people here.
I just released a new version of gmd (Groovy Markdown) which is a way to
write markdown with executable groovy code snippets very similar to the
rmd package for R and an essential part reproducible research.
This allows you to do things like this
I created https://issues.apache.org/jira/browse/GROOVY-11621 for this.
On 2025-04-14, 13:09, "Per Nyfelt" mailto:per.nyf...@nordnet.se>> wrote:
Oh, and property assignment with null for maps works with @CompileStatic e.g.
def map = [a: 'foo', b: 'bar',
Hi,
I was recently experimenting with @CompileStatic for performance improvements
and noticed that when using the short notation of putAt to assign a null value
I get the following error
[Static type checking] - Cannot call
org.codehaus.groovy.runtime.DefaultGroovyMethods#putAt(java.util.List,
Oh, and property assignment with null for maps works with @CompileStatic e.g.
def map = [a: 'foo', b: 'bar', c: 'baz']
map.b = null
assert map['b'] == null
I would assume we want bracket notation and property notation to be
functionally equivalent ri
list[1] = (String) null
I don't see why that is needed for null. On GROOVY_4_0_X, the map also
needs the cast. On master, only the list needs the cast. I can't
explain that either (yet).
Paul.
On Mon, Apr 14, 2025 at 5:37 PM Per Nyfelt mailto:per.nyf...@nordnet.se>> wrote:
>
&
Great news, thank you!
/Per
From: Keegan Witt
Reply to: "users@groovy.apache.org"
Date: Monday, 28 April 2025 at 04:34
To: GMavenPlus , "users@groovy.apache.org"
Subject: [ANNOUNCE] GMavenPlus 4.2.0
GMavenPlus 4.2.0 has been released and should be in Maven Central shortly.
Bugs
None.
Enhan
var shell = c.getDeclaredConstructor().newInstance();
c.getMethod("evaluate", String.class).invoke(shell, script);
Another way is to use a ProcessBuilder but that is much more involved for my
current use case.
Regards,
Per
From: Per Nyfelt
Organisation: Alipsa HB
Reply to: "users@groovy.apache.org
Hi,
I am experimenting with running groovy scripts in a "clean" environment
i.e. in a GroovyClassloader that does not have a parent.
Background: One of my OSS projects is an analytics IDE where i want to
enable users to run scripts that only has the dependencies of a gradle
build script and
Hi,
Ever so often i find myself wishing that Junit tests in Gradle would use the
GradleClassLoader instead of the default system classloader (e.g. to enable use
of dynamic (conditional), runtime dependencies without having to run those
tests in script blocks)
In Junit 5 it is possible to create
ere in their PATH and it’s ready to run. No groovy install, no
database driver installs, no configuration, just go.
Hope this helps,
Steve
*From:*Per Nyfelt
*Sent:* Saturday, February 22, 2025 2:34 PM
*To:* users@groovy.apache.org
*Subject:* Groovy -jar
Hi,
I find myself missing a way to ex
Hi,
I find myself missing a way to execute groovy jars e.g: `groovy -jar
someapp.jar`. As a workaround i can do something like the following in
bash (error handling etc. omitted)
#!/usr/bin/env bash # takes a single parameter (the path to the jar file
to execute - it assumes the Main-Class
uild
scripts generate them build-time along with JAR creation) at
https://ocs.cz/CD/ClassPath.txt.
All the best,
OC
On 23. 2. 2025, at 12:40, Per Nyfelt mailto:p...@alipsa.se>>
wrote:
Thanks for this!
For the use case you mention it makes perfect sense to do it that way.
Since I don't
I think the change is good and the right one. Consistency of API will
bring a much better benefit in the long run compared so the initial
discomfort to adapt.
Regards,
Per
On 4/4/25 13:41, Paul King wrote:
Hi folks,
I am seeking feedback on making a breaking change for the DGM chop
method (
Hi ,
I suggest that the withIndex method in DefaultGroovyMethods is overloaded with
an option to support streams as well
Given
names = ['per', 'karin', 'tage', 'arne', 'sixten', 'ulrik']
I can find the 4:th element with
println names[3]
or if I only have an iterator with
println names.iterato
Maybe this is of interest to some people here.
I just released a new version of the Matrix library:
https://github.com/Alipsa/matrix. It’s a groovy library for data analysis /
data science similar in scope to Tablesaw for java or Pandas for python.
With the help of the Manus AI, I recently creat
ON and
> potentially other structured formats later. But as long as you have the
> information stored in some structured way it should be relatively easy to
> convert to XML. Reading both JSON and XML is by far more difficult than
> producing them.
>
> Best Regards,
>
&g
Hi,
I would like to have a user api that can handle the following:
createXml(target: xmlFile, name: 'a test') {
description('test xml')
licenses {
license('Apache License, Version 2.0',
'http://www.apache.org/licenses/LICENSE-2.0')
}
}
// description and licenses are ar
surprised if such exists.
>>
>> In my current project I'm using the Groovy Map shortcut [ : ] to build
>> structured information. In my case it will be converted to JSON and
>> potentially other structured formats later. But as long as you have the
>> informatio
Hi,
I am keen to use the new javaVersion property added to GroovyDoc in
4.0.27 but cannot figure it out. According to the gradle documentation,
"The version of the Groovydoc that is used, is the one from the Groovy
dependency defined in the build script." so i did this:
add implementation `"
-lang.org/closures.html#_delegation_strategy
>
> Unless I misunderstood your problem, I think this might help you to
> 'delegate' property and method access to a MarkupBuilder instance?
>
> Maarten
>
> On May 21, 2025 11:47:39 Per Nyfelt wrote:
>
>> Gradle
,
sourcepath: sourceSets.main.groovy.srcDirs.join(':'),
packagenames: '*',
javaVersion: 'JAVA_17') {
}
}
}
Cheers,
Paul.
On Thu, May 29, 2025 at 5:07 AM Per Nyfelt wrote:
Hi,
I am keen to use the new javaVersion property added to GroovyDoc i
w groovytask part of the normal build (optional)
tasks.named('build'){ dependsOntasks.named('antGroovydoc')
}
4. Make sure javadocJar picks up the new location
tasks.register('javadocJar', Jar){ dependsOntasks.named('antGroovydoc')
archiveClassifier.set(&#
+1
Comment: using CompilerConfiguration with a custom ImportCustomizer
works but is only applicable to a GroovyShell or GroovyScriptEngine i
create myself and @BaseScript is not really transparent. What would be
really nice would be to be able to easily adjust default imports in
groovy-starte
so it would give me the same result as when i explicitly specify each field?
Regards,
Per
On 6/20/25 15:47, Daniel Sun wrote:
Hi Per,
You can find the `leftjoin` usage here:
https://github.com/apache/groovy/blob/b046d1b2bcbbddd59ea3d6abdf5de24a671ce51a/subprojects/groovy-ginq/src/spec/test/org/apache/g
Hi,
I ran into a a ginq "issue" today.
I have two list of rows where each key is the column name (actually
List but you can think about it as a List) collections that
looks like this:
employees: 3 obs * 5 variables
mainSsn coSsn firstName salary startDate
111
ed result of `e.*`, for
example,
```
GQ {
from e in employees
leftjoin mcid in identifiers on e.mainSsn == mcid.lei
select e, mcid // the wrapped result for e.*, mcid.*
}
```
BTW, I tried to find the `e.*` usage in LINQ of C#, it is not supported
either.
Cheers,
Daniel Sun
On 2
Hi,
I am trying to figure out a way to use @GrabConfig(systemClassLoader=true)
in a ScritpEngine (or GroovyShell, does not matter.
The following script works without any problem using the groovy command
(.e.g `groovy sqltaskExample.groovy`):
@GrabConfig(systemClassLoader=true)
@Grab('com.h2datab
s.class.classLoader,
[[group:'com.h2database',module:'h2',version:'2.3.232']]as Map[])[0]
path(id:'driverPath'){ pathelement(location:new File(h2))
}
Best regards,
Per
On 7/12/25 14:13, Per Nyfelt wrote:
Thank you, this is very hel
to load the classpath and start the
program. In Groovy we are using RootLoader for this. Or you use
GroovyStarter bye Jochen
On 7/8/25 12:51, Per Nyfelt wrote:
Hi,
I am trying to figure out a way to
use @GrabConfig(systemClassLoader=true) in a ScritpEngine (or
GroovyShell, does not mat
lt; grape_string
}
*catch*(e) {
*/log/*.error("grab of [{}] using class loader [{}] failed
[{}]",grape_string,classLoader.getClass().getName(),e.message)
}
}
}
*From: *Per Nyfelt
*Date: *Friday, July 11, 2025 at 11:54 AM
*To: *users@groovy.apache.org
*Subject: *[EXT] Re:
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