Add converter in gce

pkg/i2gw/provider.go

@@ -77,7 +77,7 @@ type ResourceConverter interface {
 
 // ImplementationSpecificHTTPPathTypeMatchConverter is an option to customize the ingress implementationSpecific
 // match type conversion.
-type ImplementationSpecificHTTPPathTypeMatchConverter func(*gatewayv1.HTTPPathMatch)
+type ImplementationSpecificHTTPPathTypeMatchConverter func(*gatewayv1.HTTPPathMatch) error
 
 // ProviderImplementationSpecificOptions contains customized implementation-specific fields and functions.
 // These will be used by the common package to customize the provider-specific behavior for all the

pkg/i2gw/providers/common/converter.go

@@ -22,7 +22,6 @@ import (
 
 	"github.com/kubernetes-sigs/ingress2gateway/pkg/i2gw"
 	networkingv1 "k8s.io/api/networking/v1"
-	networkingv1beta1 "k8s.io/api/networking/v1beta1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
@@ -135,14 +134,8 @@ type ingressPath struct {
 }
 
 func (a *ingressAggregator) addIngress(ingress networkingv1.Ingress) {
-	var ingressClass string
-	if ingress.Spec.IngressClassName != nil && *ingress.Spec.IngressClassName != "" {
-		ingressClass = *ingress.Spec.IngressClassName
-	} else if _, ok := ingress.Annotations[networkingv1beta1.AnnotationIngressClass]; ok {
-		ingressClass = ingress.Annotations[networkingv1beta1.AnnotationIngressClass]
-	} else {
-		ingressClass = ingress.Name
-	}
+	ingressClass := GetIngressClass(ingress)
+
 	for _, rule := range ingress.Spec.Rules {
 		a.addIngressRule(ingress.Namespace, ingress.Name, ingressClass, rule, ingress.Spec)
 	}
@@ -377,7 +370,10 @@ func toHTTPRouteMatch(routePath networkingv1.HTTPIngressPath, path *field.Path,
 	// is not given by the provider, an error is returned.
 	case networkingv1.PathTypeImplementationSpecific:
 		if toImplementationSpecificPathMatch != nil {
-			toImplementationSpecificPathMatch(match.Path)
+			err := toImplementationSpecificPathMatch(match.Path)
+			if err != nil {
+				return nil, field.Invalid(path.Child("pathType"), routePath.PathType, err.Error())
+			}
 		} else {
 			return nil, field.Invalid(path.Child("pathType"), routePath.PathType, "implementationSpecific path type is not supported in generic translation, and your provider does not provide custom support to translate it")
 		}

pkg/i2gw/providers/gce/converter.go

@@ -18,6 +18,9 @@ package gce
 
 import (
 	"github.com/kubernetes-sigs/ingress2gateway/pkg/i2gw"
+	"github.com/kubernetes-sigs/ingress2gateway/pkg/i2gw/providers/common"
+	networkingv1 "k8s.io/api/networking/v1"
+	"k8s.io/apimachinery/pkg/util/validation/field"
 )
 
 // converter implements the ToGatewayAPI function of i2gw.ResourceConverter interface.
@@ -32,11 +35,37 @@ type converter struct {
 func newConverter(conf *i2gw.ProviderConf) converter {
 	return converter{
 		conf:           conf,
-		featureParsers: []i2gw.FeatureParser{
-			// The list of feature parsers comes here.
-		},
+		featureParsers: []i2gw.FeatureParser{},
 		implementationSpecificOptions: i2gw.ProviderImplementationSpecificOptions{
-			// The list of the implementationSpecific ingress fields options comes here.
+			ToImplementationSpecificHTTPPathTypeMatch: implementationSpecificHTTPPathTypeMatch,
 		},
 	}
 }
+
+func (c *converter) convert(storage *storage) (i2gw.GatewayResources, field.ErrorList) {
+	ingressList := []networkingv1.Ingress{}
+	for _, ing := range storage.Ingresses {
+		ingressList = append(ingressList, *ing)
+	}
+
+	// Convert plain ingress resources to gateway resources, ignoring all
+	// provider-specific features.
+	gatewayResources, errs := common.ToGateway(ingressList, c.implementationSpecificOptions)
+	if len(errs) > 0 {
+		return i2gw.GatewayResources{}, errs
+	}
+
+	errs = toGceGatewayClass(ingressList, &gatewayResources)
+	if len(errs) > 0 {
+		return i2gw.GatewayResources{}, errs
+	}
+
+	for _, parseFeatureFunc := range c.featureParsers {
+		// Apply the feature parsing function to the gateway resources, one by one.
+		parseErrs := parseFeatureFunc(ingressList, &gatewayResources)
+		// Append the parsing errors to the error list.
+		errs = append(errs, parseErrs...)
+	}
+
+	return gatewayResources, errs
+}