Feature/add java file support for file summery

[aimasteracc]

Add Java Support to get_file_summary Function
📋 Summary
This PR adds comprehensive Java file analysis support to the get_file_summary function, bringing Java files to the same level of detail as existing Python and JavaScript/TypeScript support.

🎯 What Changed
New Features
Java Package Analysis: Extracts package declarations from Java files
Import Detection: Identifies and lists all import statements
Class Detection: Finds public, private, protected, and package-private class definitions
Interface Detection: Identifies interface declarations with proper visibility handling
Enum Detection: Detects enum definitions with various access modifiers
Method Detection: Extracts method signatures including constructors, with proper filtering of non-method patterns
Enhanced Output Structure
The get_file_summary function now returns the following additional fields for .java files:

package: Package declaration string
imports: Array of import statements
classes: Array of class definitions with line numbers and names
interfaces: Array of interface definitions with line numbers and names
methods: Array of method definitions with line numbers and names
enums: Array of enum definitions with line numbers and names
import_count, class_count, interface_count, method_count, enum_count: Count metrics
🔧 Technical Implementation
Code Changes
File: src/code_index_mcp/server.py
Function: get_file_summary()
Lines Added: ~70 lines of Java-specific parsing logic
Language Support Matrix

Language	Extensions	Package/Module	Classes	Functions/Methods	Interfaces	Enums
Python	.py	❌	✅	✅	❌	❌
JavaScript/TypeScript	.js, .jsx, .ts, .tsx	❌	✅	✅	❌	❌
Java	.java	✅	✅	✅	✅	✅

🧪 Testing
Test Coverage
Created comprehensive test case with sample Java file containing:
Package declaration
Multiple import statements
Public and package-private classes
Interface definition
Enum definition
Methods with various access modifiers
Test Results
✅ Package extraction: com.example.test
✅ Import detection: 3 imports correctly identified
✅ Class detection: 2 classes found
✅ Interface detection: 1 interface found
✅ Enum detection: 1 enum found
✅ Method detection: 6 methods found (including constructor)

🚀 Benefits
Consistency: Java files now have the same level of analysis as other supported languages
Improved Code Navigation: Developers can quickly understand Java file structure
Better Indexing: Enhanced metadata for Java files in the code indexer
Comprehensive Analysis: Supports all major Java constructs (classes, interfaces, enums, methods)
📝 Example Output
{
"file_path": "src/main/java/com/example/MyClass.java",
"line_count": 45,
"extension": ".java",
"package": "com.example",
"imports": [
"import java.util.List;",
"import java.util.ArrayList;"
],
"classes": [
{"line": 7, "name": "MyClass"}
],
"interfaces": [
{"line": 25, "name": "MyInterface"}
],
"methods": [
{"line": 10, "name": "MyClass"},
{"line": 15, "name": "getValue"},
{"line": 20, "name": "setValue"}
],
"enums": [
{"line": 30, "name": "Status"}
],
"import_count": 2,
"class_count": 1,
"interface_count": 1,
"method_count": 3,
"enum_count": 1
}
🔍 Backward Compatibility
No breaking changes: Existing functionality for Python and JavaScript/TypeScript remains unchanged
Additive feature: Only adds new analysis capabilities for Java files
Existing API: No changes to function signature or existing return structure
📋 Checklist
[x] Implementation completed
[x] Java parsing logic added
[x] Test cases created and verified
[x] No breaking changes to existing functionality
[x] Documentation updated (this PR description)
[x] Code follows existing patterns and style
🎉 Ready for Review
This PR is ready for review and testing. The implementation follows the existing codebase patterns and provides comprehensive Java file analysis capabilities.