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integration.go
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integration.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package api
import (
"context"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/types/known/anypb"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/internal/protos"
"namespacelabs.dev/foundation/schema"
"namespacelabs.dev/foundation/std/pkggraph"
)
var (
// Key: typeUrl of ServerData
serverApplyHandlers = map[string]func(context.Context, *schema.Environment, pkggraph.PackageLoader, *pkggraph.Package, *anypb.Any) error{}
// Key: typeUrl of ServerData
testApplyHandlers = map[string]func(context.Context, *schema.Environment, pkggraph.PackageLoader, *pkggraph.Package, *schema.Test, *anypb.Any) error{}
// Key: typeUrl of BuildData
createBinaryHandlers = map[string]func(context.Context, *schema.Environment, pkggraph.PackageLoader, pkggraph.Location, proto.Message) (*schema.Binary, error){}
)
func RegisterIntegration[ServerData proto.Message, BuildData proto.Message](impl Integration[ServerData, BuildData]) {
registerServerApplyHandler(impl.ApplyToServer)
registerTestApplyHandler(impl.ApplyToTest)
registerCreateBinaryHandler(impl.CreateBinary)
}
func GenerateBinary(ctx context.Context, env *schema.Environment, pl pkggraph.PackageLoader, loc pkggraph.Location, binaryName string, data proto.Message) (*schema.Binary, error) {
url := protos.TypeUrlForInstance(data)
if handler, ok := createBinaryHandlers[url]; ok {
binary, err := handler(ctx, env, pl, loc, data)
if err != nil {
return nil, err
}
binary.Name = binaryName
return binary, nil
} else {
return nil, fnerrors.NewWithLocation(loc, "unknown binary kind: %s", url)
}
}
func ApplyServerIntegration(ctx context.Context, env *schema.Environment, pl pkggraph.PackageLoader, pkg *pkggraph.Package) error {
if pkg.Integration == nil {
return nil
}
if i, ok := serverApplyHandlers[pkg.Integration.Data.TypeUrl]; ok {
return i(ctx, env, pl, pkg, pkg.Integration.Data)
} else {
return fnerrors.NewWithLocation(pkg.Location, "unknown integration kind: %s", pkg.Integration)
}
}
func ApplyTestIntegration(ctx context.Context, env *schema.Environment, pl pkggraph.PackageLoader, pkg *pkggraph.Package, test *schema.Test) error {
if test.Integration == nil {
return nil
}
if i, ok := testApplyHandlers[test.Integration.Data.TypeUrl]; ok {
return i(ctx, env, pl, pkg, test, test.Integration.Data)
} else {
return fnerrors.NewWithLocation(pkg.Location, "unknown integration kind: %s", test.Integration)
}
}
func registerServerApplyHandler[V proto.Message](handler func(context.Context, *schema.Environment, pkggraph.PackageLoader, *pkggraph.Package, V) error) {
serverApplyHandlers[protos.TypeUrl[V]()] = func(ctx context.Context, env *schema.Environment, pl pkggraph.PackageLoader, pkg *pkggraph.Package, data *anypb.Any) error {
msg := protos.NewFromType[V]()
if err := data.UnmarshalTo(msg); err != nil {
return err
}
return handler(ctx, env, pl, pkg, msg)
}
}
func registerTestApplyHandler[V proto.Message](handler func(context.Context, *schema.Environment, pkggraph.PackageLoader, *pkggraph.Package, *schema.Test, V) error) {
testApplyHandlers[protos.TypeUrl[V]()] = func(ctx context.Context, env *schema.Environment, pl pkggraph.PackageLoader, pkg *pkggraph.Package, test *schema.Test, data *anypb.Any) error {
msg := protos.NewFromType[V]()
if err := data.UnmarshalTo(msg); err != nil {
return err
}
return handler(ctx, env, pl, pkg, test, msg)
}
}
func registerCreateBinaryHandler[V proto.Message](handler func(context.Context, *schema.Environment, pkggraph.PackageLoader, pkggraph.Location, V) (*schema.Binary, error)) {
// Here were already get a proto instance, no need to parse it from Any.
createBinaryHandlers[protos.TypeUrl[V]()] = func(ctx context.Context, env *schema.Environment, pl pkggraph.PackageLoader, loc pkggraph.Location, data proto.Message) (*schema.Binary, error) {
return handler(ctx, env, pl, loc, data.(V))
}
}