CODEWITHSUNDEEP
groovyinclude
Sam
Sam

Reputation: 65

Including some groovy scripts in a groovy script

I have some library scripts: lib1.groovy:

def a(){
}

lib2.groovy:

def b(){
}

lib3.groovy:

def c(){
}

and want to use them in another scripts : conf.groovy:

a()
b()
c()

conf.groovy is configured by user and he is not aware of my background lib scripts! he is only aware of provided methods/task : a(), b(), c(). actually i created lib scripts for user simplicity.

Is there any way to include all scripts in a lib directory (scripts lib1, lib2m ,lib3) into conf.groovy script(s)? Or, is there any alternative mechanism to to that? I am trying to run conf.groovy in a runner script/java class (using groovy shell, loader o script engine).

main.groovy:

File currentDir = new File(".")
String[] roots = {currentDir.getAbsolutePath()}
GroovyScriptEngine gse = new GroovyScriptEngine(roots)
gse.run('confg.groovy', binding)

Upvotes: 4

Views: 4756

Answers (1)

daggett
daggett

Reputation: 28564

v1

use import static and static methods declaration:

Lib1.groovy

static def f3(){
    println 'f3'
}
static def f4(){
    println 'f4'
}

Conf.groovy

import static Lib1.* /*Lib1 must be in classpath*/

f3()
f4()

v2

or another idea (but not sure you need this complexity): use GroovyShell to parse all lib scripts. from each lib script class get all non-standard declared methods, convert them into MethodClosure and pass them as binding into conf.groovy script. And a lot of questions here like: what to do if method declared in several Libs...

import org.codehaus.groovy.runtime.MethodClosure
def shell = new GroovyShell()
def binding=[:]
//cycle here through all lib scripts and add methods into binding
def script = shell.parse( new File("/11/tmp/bbb/Lib1.groovy") )
binding << script.getClass().getDeclaredMethods().findAll{!it.name.matches('^\\$.*|main|run$')}.collectEntries{[it.name,new MethodClosure(script,it.name)]}

//run conf script
def confScript = shell.parse( new File("/11/tmp/bbb/Conf.groovy") )
confScript.setBinding(new Binding(binding))
confScript.run()

Lib1.groovy

def f3(){
    println 'f3'
}
def f4(){
    println 'f4'
}

Conf.groovy

f3()
f4()

Upvotes: 3

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