Class ServicePatternRecognizer

Recognizes and classifies Angular service patterns.

Uses ng-morph to detect @Injectable decorated classes
Falls back to ts-morph for suffix-based pattern matching
Provides confidence scores for classifications

Index

Constructors

Methods

classifyService detectService getAllServicePatterns hasInjectableDecorator isService isServiceFile

Constructors

constructor

new ServicePatternRecognizer(
ngMorphAdapter?: NgMorphAdapter,
): ServicePatternRecognizer
Constructor for ServicePatternRecognizer.
Parameters
- OptionalngMorphAdapter: NgMorphAdapter
  Optional ng-morph adapter for Angular-specific operations
  
  BACKWARD COMPATIBILITY: Constructor is optional - if not provided, falls back to pure ts-morph.
Returns ServicePatternRecognizer

Methods

classifyService

classifyService(sourceFile: SourceFile): ServiceClassification
Classify a source file as a service pattern.

Uses ng-morph to detect @Injectable, then analyzes class structure and naming to determine the specific service pattern.
Parameters
- sourceFile: SourceFile
  The source file to analyze
Returns ServiceClassification
Service classification result
Example
```
const classification = recognizer.classifyService(sourceFile);
if (classification.pattern === ServicePattern.INJECTABLE) {
  console.info('This is an Angular service');
}
```

detectService

detectService(classDecl: ClassDeclaration): ServiceDetectionResult
Detect if a class is a service with confidence scoring.

This method provides a more detailed analysis than isService(), including confidence levels and detection methodology.
Parameters
- classDecl: ClassDeclaration
  The class declaration to analyze
Returns ServiceDetectionResult
Service detection result with confidence and method
Example
```
const result = recognizer.detectService(classDecl);
if (result.isService && result.confidence > 0.8) {
  console.info(`Detected service via ${result.detectionMethod}`);
}
```

getAllServicePatterns

getAllServicePatterns(sourceFile: SourceFile): ServiceClassification[]
Get all service patterns in the source file.

Some files may contain multiple service classes.
Parameters
- sourceFile: SourceFile
  The source file to analyze
Returns ServiceClassification[]
Array of service classifications

hasInjectableDecorator

hasInjectableDecorator(classDecl: ClassDeclaration): boolean
Check if a class declaration has the @Injectable decorator.

Uses ng-morph adapter if available for enhanced detection, falls back to legacy ts-morph detection otherwise.
Parameters
- classDecl: ClassDeclaration
  The class declaration to check
Returns boolean
True if the class has @Injectable decorator
Example
```
if (recognizer.hasInjectableDecorator(classDecl)) {
  console.info('This is an Angular service');
}
```

isService

isService(classDecl: ClassDeclaration): boolean
Simple check if a class is a service.

This is a convenience method that wraps detectService() for backward compatibility with existing code.
Parameters
- classDecl: ClassDeclaration
  The class declaration to check
Returns boolean
True if the class is detected as a service
Example
```
if (recognizer.isService(classDecl)) {
  // Handle service class
}
```

isServiceFile

isServiceFile(sourceFile: SourceFile): boolean
Check if a source file contains a service class.

Quick check without full classification.
Parameters
- sourceFile: SourceFile
  The source file to check
Returns boolean
True if the file contains a service class
Example
```
if (recognizer.isServiceFile(sourceFile)) {
  // Perform service-specific analysis
}
```