I've tried to use the new Groovy Grape capability in Groovy 1.6-beta-2 but I get an error message;
unable to resolve class com.jidesoft.swing.JideSplitButton
from the Groovy Console (/opt/groovy/groovy-1.6-beta-2/bin/groovyConsole) when running the stock example;
import com.jidesoft.swing.JideSplitButton
#Grab(group='com.jidesoft', module='jide-oss', version='[2.2.1,)')
public class TestClassAnnotation {
public static String testMethod () {
return JideSplitButton.class.name
}
}
I even tried running the grape command line tool to ensure the library is imported. Like this;
$ /opt/groovy/groovy-1.6-beta-2/bin/grape install com.jidesoft jide-oss
which does install the library just fine. How do I get the code to run/compile correctly from the groovyConsole?
There is still some kinks in working out the startup/kill switch routine. For Beta-2 do this in it's own script first:
groovy.grape.Grape.initGrape()
Another issue you will run into deals with the joys of using an unbounded upper range. Jide-oss from 2.3.0 onward has been compiling their code to Java 6 bytecodes, so you will need to either run the console in Java 6 (which is what you would want to do for Swing anyway) or set an upper limit on the ranges, like so
import com.jidesoft.swing.JideSplitButton
#Grab(group='com.jidesoft', module='jide-oss', version='[2.2.1,2.3.0)')
public class TestClassAnnotation {
public static String testMethod () {
return JideSplitButton.class.name
}
}
new TestClassAnnotation().testMethod()
I finally got it working for Groovy Shell (1.6.5, JVM: 1.6.0_13). This should be documented better.
First at the command line...
grape install org.codehaus.groovy.modules.http-builder http-builder 0.5.0-RC2
Then in groovysh...
groovy:000> import groovy.grape.Grape
groovy:000> Grape.grab(group:'org.codehaus.groovy.modules.http-builder', module:'http-builder', version:'0.5.0-RC2')
groovy:000> def http= new groovyx.net.http.HTTPBuilder('http://rovio')
===> groovyx.net.http.HTTPBuilder#91520
The #grab is better used in a file than the shell.
Ok. Seems like this a short working demo (running from the groovyConsole)
groovy.grape.Grape.initGrape()
#Grab(group='com.jidesoft', module='jide-oss', version='[2.2.1,2.3.0)')
public class UsedToExposeAnnotationToComplier {}
com.jidesoft.swing.JideSplitButton.class.name
When run it produces
Result: "com.jidesoft.swing.JideSplitButton"
Very cool!!
The import statement must appear after the grabs.
Ps. At least one import statement must exists after the grabs
#Grab(group='com.jidesoft', module='jide-oss', version='[2.2.1,)')
import com.jidesoft.swing.JideSplitButton
public class TestClassAnnotation {
public static String testMethod () {
return JideSplitButton.class.name
}
}
Different example using latest RC-2 (note: Grab annotates createEmptyInts):
// create and use a primitive array
import org.apache.commons.collections.primitives.ArrayIntList
#Grab(group='commons-primitives', module='commons-primitives', version='1.0')
def createEmptyInts() { new ArrayIntList() }
def ints = createEmptyInts()
ints.add(0, 42)
assert ints.size() == 1
assert ints.get(0) == 42
Another example (note: Grab annotates getHtml):
// find the PDF links in the Java 1.5.0 documentation
#Grab(group='org.ccil.cowan.tagsoup', module='tagsoup', version='0.9.7')
def getHtml() {
def parser = new XmlParser(new org.ccil.cowan.tagsoup.Parser())
parser.parse("http://java.sun.com/j2se/1.5.0/download-pdf.html")
}
html.body.'**'.a.#href.grep(~/.*\.pdf/).each{ println it }
Another example (note: Grab annotates getFruit):
// Google Collections example
import com.google.common.collect.HashBiMap
#Grab(group='com.google.code.google-collections', module='google-collect', version='snapshot-20080530')
def getFruit() { [grape:'purple', lemon:'yellow', orange:'orange'] as HashBiMap }
assert fruit.inverse().yellow == 'lemon'
Related
I need to build a custom command in a Grails 4 application (https://docs.grails.org/4.0.11/guide/single.html#creatingCustomCommands), and I need to get an handle to some Grails Services and Domain classes which I will query as needed.
The custom command skeleton is quite simple:
import grails.dev.commands.*
import org.apache.maven.artifact.Artifact
class HelloWorldCommand implements GrailsApplicationCommand {
boolean handle() {
return true
}
}
While the documentation says that a custom command has access to the whole application context, I haven't found any examples on how to get an handle of that and start accessing the various application artifacts.
Any hints?
EDIT: to add context and clarify the goal of the custom command in order for further recommendation/best practices/etc.: the command reads data from a file in a custom format, persist the data, and writes reports in another custom format.
Will eventually be replaced by a recurrent job, once the data will be available on demand from a third party REST API.
See the project at github.com/jeffbrown/marco-vittorini-orgeas-artifacts-cli.
grails-app/services/marco/vittorini/orgeas/artifacts/cli/GreetingService.groovy
package marco.vittorini.orgeas.artifacts.cli
class GreetingService {
String greeting = 'Hello World'
}
grails-app/commands/marco/vittorini/orgeas/artifacts/cli/HelloCommand.groovy
package marco.vittorini.orgeas.artifacts.cli
import grails.dev.commands.*
class HelloCommand implements GrailsApplicationCommand {
GreetingService greetingService
boolean handle() {
println greetingService.greeting
return true
}
}
EDIT:
I have added a commit at github.com/jeffbrown/marco-vittorini-orgeas-artifacts-cli/commit/49a846e3902073f8ea0539fcde550f6d002b9d89 which demonstrates accessing a domain class, which was part of the question I overlooked when writing the initial answer.
I need to be able to create classes and use them within a Jenkins pipeline.
Let's say I have a very simple groovy class, declared in a groovy script, looking as this:
class MyClass {
#Override
public String toString() {
return "toto";
}
}
return MyClass();
This class is located in the folder: Project\Buildfiles\Jenkins\com\external
Then in my Jenkinsfile I would do:
node('mynode') {
toto = load 'Project\Buildfiles\Jenkins\com\external\MyClass.groovy'
echo toto.toString()
}
And this actually works
However this do pose a certain numbers of issues with my IDE which does not understand what is happening. Also, this prevents me to have several constructor in my custom class.
What I have been trying to do, and for which I need help, is the following. In a file named ExternalClasses.groovy:
class Toto{
#Override
public String toString() {
return "toto";
}
}
class Tata{
#Override
public String toString() {
return "tata";
}
}
return this;
In the JenkinsFile:
node('mynode') {
external= load 'Project\Buildfiles\Jenkins\com\external\ExternalClasses.groovy'
toto = new Toto();
tata = new Tata();
}
And this fails
I have tried several approaches, used packages names, used the Toto.new() syntax, but none worked.
Any ideas ?
Edit about Shared Libraries:
I actually have a Shared library, it is used by several teams and contains very specific data which should be own by the teams and not by the library.
We need to be able to put out of the library things which does not belong to it. The purpose of this work is to alleviate the said library of non generic code.
You could use the Shared Library Feature. Upload your scripts into a VCS like Github/Bitbucket and use Jenkins-Jobs to execute them. They are available for all projects/jobs.
I'm attempting to create unit tests for a JenkinsShared library using Gradle in order to run the test tasks.
I've followed this tutorial which upon conclusion one has a working test suite for a shared library for functions within the vars folder (with the unit tests in src/test/groovy/*Test.groovy).
However, in our internal shared jenkins library we followed a more object oriented style and isolated functionality into a package of classes in the format: src/org/company/*.groovy.
The problem arises when attempting to import said package into a unit test class. In the tutorial, the functions are imported using the loadScript method this method fails when loading a class which is dependent on another file.
Take the class:
package tests
import org.junit.*
import com.lesfurets.jenkins.unit.*
import static groovy.test.GroovyAssert.*
import org.company.UtilFactory
class UtilFactoryTest extends BasePipelineTest {
#Test
void testCall() {
def util = UtilFactory.getUtil("hello")
assertEquals true, true
}
}
src/org/company/UtilFactory.groovy
package org.company
class UtilFactory implements Serializable {
static Util instance
static Util getUtil(script=null) {
if (!(UtilFactory.instance)) {
if (!script) {
// Throws an exception if on the first call to getUtil the
// script parameter is null.
throw new ScriptUndefinedException("script parameter null on initial call to getUtil")
}
UtilFactory.instance = new Util(script)
}
return UtilFactory.instance
}
}
class ScriptUndefinedException extends Exception {
// Parameterless Constructor
public ScriptUndefinedException() {}
// Constructor that accepts a message
public ScriptUndefinedException(String message)
{
super(message);
}
}
Which gives me the exception:
jenkins-utilities/src/test/groovy/UtilFactoryTest.groovy: 7:
unable to resolve class org.company.UtilFactory
# line 7, column 1.
import org.company.UtilFactory
This may be more of a Gradle issue than a JenkinsShared Library. I've just spent a good portion of my day trying to figure out exactly what I'm doing wrong to no avail.
I would really appreciate any help to guide me in the right direction.
This library may be helpful getting your shared libraries to work in the unit test https://github.com/stchar/pipeline-sharedlib-testharness
Is it possible to run transformer on a command line application before running it?
For example, if I have a class that mixes in Observable class. And I would like to transform it so that dirtCheck is transformed into ChangeNotifier.
holder.dart
class Member extends Object with ChangeNotifier {
#observable
String name = "";
}
class Holder extends Object with ChangeNotifier {
Holder() {
}
#observable
Member member = new Member();
}
pubspec.yml
transformers:
- observe:
files:
- bin/models/holder.dart
If I run this application from IntelliJ IDE, it doesn't seem to run the transformer on it before executing main.dart.
Thanks.
Transfomers are not applied to command line apps. Only code that is served using pub serve or pub build runs and applies transformers. Your code should run on the server/command line as is. There is no need to run transformers.
Transformers are used for observe to replace dart:mirrors access by generated code to prevent code bloat for dart2js-generated JS but this is no issue on the command line.
I'm playing around with Grails/Groovy and have some straight Groovy code working that utilizes groovy-wslite. That code starts as such
send-request.groovy
#Grab(group='com.github.groovy-wslite', module='groovy-wslite', version='1.1.0')
import wslite.soap.*
When I implement that into my Grails code and view the controller/action I get this
Error 500: Internal Server Error
URI: /FormProj/hello/trigger
Class: java.lang.RuntimeException
Message: No suitable ClassLoader found for grab
And here's the code in it's current state (I've tried a LOT of different things)
HelloController.groovy
package com.demo
import groovy.grape.Grape
class HelloController {
def index() { }
def sayHi() {
return [
greeting : "Hi there, ${ params.name }"
]
}
def trigger() {
Grape.grab(group:'com.github.groovy-wslite', module:'groovy-wslite', version:'1.1.0')
…
}
}
As I'm sure you notice I'm very green with Grails/Groovy and really all things Java. I do know there is a wslite plugin for Grails, but surely this can work too right?
Grails: 2.3.8
Groovy: 2.2.2
UPDATE
Based on Ian Robert's advice I have updated my BuildConfig file by adding this line to the dependencies block
compile 'com.github.groovy-wslite:groovy-wslite:1.1.0'
And updated my controller to look like this
HelloController.groovy
package ws.thejspot
import wslite.soap.*
class HelloController {
def index() { }
def sayHi() {
return [
greeting : "Hi there, ${ params.name }"
]
}
def trigger() {
def client = new SOAPClient('URL')
}
}
Unfortunately now the IDE, GGTS, shows an error in the controller 'unable to resolve class SOAPClient'
Rather than trying to download the dependencies with #Grab, you should use the standard Grails dependency mechanism - edit grails-app/conf/BuildConfig.groovy and look for the grails.project.dependency.resolution closure. Inside that, in the dependencies block you should add
compile 'com.github.groovy-wslite:groovy-wslite:1.1.0'
and remove anything Grape-related from the controller, leaving just the import wslite.soap.*
You will probably need to run
grails compile --refresh-dependencies
at least once to ensure that Grails picks up your change to BuildConfig - it deliberately doesn't do a full dependency resolve every time you compile, so as not to slow down the build too much, so you need to tell it to refresh when you know it needs to.