Hi,

Here is an example which uses a lot of gdsl concepts. This example tries to simulate injecting properties to Domains.

The Example is as follows:
(The code is self explanatory and can be used as a reference)
[java]
import com.intellij.patterns.PsiJavaPatterns
import com.intellij.patterns.PlatformPatterns

def mongoContext = context(
ctype: PsiJavaPatterns.psiClass().withName(PlatformPatterns.string().matches(/.*/))
)

contributor(mongoContext) {
def path = ""
try {
path = psiClass.containingFile.originalFile.virtualFile.path
} catch (Exception e) {
}
if (path =~ ".*/*grails-app/mongoDomain/.*") {

classType?.fields?.each {
if ((it.name == "belongsTo") || (it.name == "hasOne")) {
it.children.each {child ->
List definitions = child.text.toString().replaceAll(/\[|\]/, "").trim().tokenize(",")*.trim()
definitions.each {
List tokens = it.tokenize(":")*.trim()
property(name: tokens.first().toString(), type: tokens.last().toString())
}
}
}
}

classType?.fields?.each {
if (it.name == "hasMany") {
it.children.each {child ->
List definitions = child.text.toString().replaceAll(/\[|\]/, "").trim().tokenize(",")*.trim()
definitions.each {
List tokens = it.tokenize(":")*.trim()
property(name: tokens.first().toString(), type: "List<${tokens.last().toString()}>")
}
}
}
}

//Adding Properties
property(name: "id", type: ‘org.bson.types.ObjectId’)
property(name: "mongoVersion", type: ‘Integer’)
property(name: "version", type: ‘Integer’)
property(name: "log", type: ‘org.apache.log4j.Logger’)
property(name: "clazz", type: ‘Class’)
property(name: ‘errors’, type: ‘Map’)

}
}
[/java]

Read Further in the “GDSL AWESOMENESS” Series

1. GDSL Awesomeness – Introduction to GDSL in IntelliJ Idea
2. GDSL Awesomeness – Understanding Context And Contributors in Detail
3. GDSL Awesomeness – Defining dynamic property in a class
4. GDSL Awesomeness – Defining dynamic method in a class
5. GDSL Awesomeness – Adding Hinting for missingMethod implementation
6. GDSL Awesomeness – Setting a global context
7. GDSL Awesomeness – Delegating Closure Calls
8. GDSL Awesomeness – Defining methods in a closure passed to method of particular name
9. GDSL Awesomeness – Defining Properties in a closure passed to method of particular name
10. GDSL Awesomeness – Contributing to classes which match a path/name pattern
11. GDSL Awesomeness – contributing methods with current class return types or parameters
12. GDSL Awesomeness – AutoComplete Script for grails-Mail-Plugin “sendMail” closure
13. GDSL Awesomeness – Getting Code of a method or Field in GDSL Script
14. GDSL Awesomeness – Advanced Example showing domain properties implementation

Hope It Helped.
Kushal Likhi