func hasConflict()

in pilot/pkg/model/virtualservice.go [421:483]
50 lines of code
23 McCabe index (conditional complexity)

func hasConflict(root, leaf *networking.HTTPMatchRequest) bool {
	roots := []*networking.StringMatch{root.Uri, root.Scheme, root.Method, root.Authority}
	leaves := []*networking.StringMatch{leaf.Uri, leaf.Scheme, leaf.Method, leaf.Authority}
	for i := range roots {
		if stringMatchConflict(roots[i], leaves[i]) {
			return true
		}
	}
	// header conflicts
	for key, leafHeader := range leaf.Headers {
		if stringMatchConflict(root.Headers[key], leafHeader) {
			return true
		}
	}

	// without headers
	for key, leafValue := range leaf.WithoutHeaders {
		if stringMatchConflict(root.WithoutHeaders[key], leafValue) {
			return true
		}
	}

	// query params conflict
	for key, value := range leaf.QueryParams {
		if stringMatchConflict(root.QueryParams[key], value) {
			return true
		}
	}

	if root.IgnoreUriCase != leaf.IgnoreUriCase {
		return true
	}
	if root.Port > 0 && leaf.Port > 0 && root.Port != leaf.Port {
		return true
	}

	// sourceNamespace
	if root.SourceNamespace != "" && leaf.SourceNamespace != root.SourceNamespace {
		return true
	}

	// sourceLabels should not conflict, root should have superset of sourceLabels.
	for key, leafValue := range leaf.SourceLabels {
		if v, ok := root.SourceLabels[key]; ok && v != leafValue {
			return true
		}
	}

	// gateways should not conflict, root should have superset of gateways.
	if len(root.Gateways) > 0 && len(leaf.Gateways) > 0 {
		if len(root.Gateways) < len(leaf.Gateways) {
			return true
		}
		rootGateway := sets.New(root.Gateways...)
		for _, gw := range leaf.Gateways {
			if !rootGateway.Contains(gw) {
				return true
			}
		}
	}

	return false
}