hi,

If we want to contribute to classes which matches a particular path/name pattern, then we can use PSI Class patterns to do it.

the code is as follows:
[java]
import com.intellij.patterns.PsiJavaPatterns
import com.intellij.patterns.PlatformPatterns

//get the context of all files, and enable path matching. Note: Don’t change anything in context here.
def ctx = context(
ctype: PsiJavaPatterns.psiClass().withName(PlatformPatterns.string().matches(/.*/))
)

contributor(ctx) {
def path = ""
try {
path = psiClass.containingFile.originalFile.virtualFile.path
} catch (Exception e) {
}

//Check for Path pattern here
if (path =~ ".*/*grails-app/controllers/.*") {
//Contribute to matching classes here.
method(name: ‘foo’, type:’void’, params: [:])
}
}
[/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