BreakpointManagerService

Import it from @grafloria/angular.

BreakpointManager Service

Manages breakpoints for debugging diagram execution.

Features:

• Set/remove breakpoints on nodes
• Conditional breakpoints
• Enable/disable breakpoints
• Hit count tracking
• Breakpoint hit notifications

ts
Copy
@Injectable({ providedIn: 'root' })
export class BreakpointManagerService

Properties

Methods

• addBreakpoint( nodeId: string, type: BreakpointType, condition?: BreakpointCondition, conditionExpression?: string, metadata?: Record<string, any> ): Breakpoint — Add breakpoint to node.
• removeBreakpoint(breakpointId: string): boolean — Remove breakpoint by ID.
• removeBreakpointsForNode(nodeId: string): number — Remove all breakpoints for node.
• clearBreakpoints(): void — Remove all breakpoints.
• enableBreakpoint(breakpointId: string): void — Enable breakpoint.
• disableBreakpoint(breakpointId: string): void — Disable breakpoint.
• toggleBreakpoint(breakpointId: string): void — Toggle breakpoint enabled/disabled.
• getBreakpoint(breakpointId: string): Breakpoint | null — Get breakpoint by ID.
• getAllBreakpoints(): Breakpoint[] — Get all breakpoints.
• getBreakpointsForNode(nodeId: string): Breakpoint[] — Get breakpoints for node.
• hasBreakpoint(nodeId: string, type?: BreakpointType): boolean — Check if node has breakpoint.
• getBreakpointCount(): number — Get breakpoint count.
• getEnabledBreakpointCount(): number — Get enabled breakpoint count.
• shouldBreak(nodeId: string, type: BreakpointType, context?: any): boolean — Check if breakpoint should hit at node. Call this during execution before/after node execution.
• triggerBreakpointHit(breakpointId: string, context?: any): void — Manually trigger breakpoint hit. Useful for testing or custom breakpoint logic.
• resetHitCount(breakpointId: string): void — Reset hit count for breakpoint.
• resetAllHitCounts(): void — Reset hit counts for all breakpoints.
• getStats(): { total: number; enabled: number; disabled: number; byType: Record<BreakpointType, number>; totalHits: number; } — Get breakpoint statistics.

Example

typescript
Copy
constructor(
  private breakpointManager: BreakpointManagerService
) {}

setDebugBreakpoint(nodeId: string) {
  // Set breakpoint before node execution
  const breakpoint = this.breakpointManager.addBreakpoint(
    nodeId,
    BreakpointType.BEFORE
  );

  // Listen for hits
  this.breakpointManager.breakpointHit$.subscribe(event => {
    console.log('Breakpoint hit:', event.nodeId);
    // Pause execution, show debugger, etc.
  });
}

setConditionalBreakpoint(nodeId: string) {
  // Set conditional breakpoint
  this.breakpointManager.addBreakpoint(
    nodeId,
    BreakpointType.CONDITIONAL,
    (context) => context.value > 100,
    'value > 100'
  );
}