mirror of https://github.com/hashicorp/consul
145 lines
3.3 KiB
Go
145 lines
3.3 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package index
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import (
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"fmt"
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"github.com/hashicorp/consul/internal/resource"
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"github.com/hashicorp/consul/internal/storage"
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"github.com/hashicorp/consul/proto-public/pbresource"
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)
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type IndexQueryOptions struct {
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Prefix bool
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}
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func IndexFromID(id *pbresource.ID, includeUid bool) []byte {
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var b Builder
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b.Raw(IndexFromType(id.Type))
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b.Raw(IndexFromTenancy(id.Tenancy))
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b.String(id.Name)
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if includeUid {
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b.String(id.Uid)
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}
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return b.Bytes()
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}
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func IndexFromRefOrID(ref resource.ReferenceOrID) []byte {
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var b Builder
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b.Raw(IndexFromType(ref.GetType()))
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b.Raw(IndexFromTenancy(ref.GetTenancy()))
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b.String(ref.GetName())
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return b.Bytes()
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}
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func PrefixIndexFromRefOrID(ref resource.ReferenceOrID) []byte {
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var b Builder
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b.Raw(IndexFromType(ref.GetType()))
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raw, done := prefixIndexFromTenancy(ref.GetTenancy())
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b.Raw(raw)
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if done {
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return b.Bytes()
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}
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b.Raw([]byte(ref.GetName()))
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return b.Bytes()
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}
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func prefixIndexFromTenancy(t *pbresource.Tenancy) ([]byte, bool) {
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var b Builder
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partition := t.GetPartition()
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if partition == "" || partition == storage.Wildcard {
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return b.Bytes(), true
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}
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b.String(partition)
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namespace := t.GetNamespace()
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if namespace == "" || namespace == storage.Wildcard {
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return b.Bytes(), true
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}
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b.String(namespace)
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return b.Bytes(), false
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}
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func IndexFromType(t *pbresource.Type) []byte {
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var b Builder
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b.String(t.Group)
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b.String(t.Kind)
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return b.Bytes()
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}
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func IndexFromTenancy(t *pbresource.Tenancy) []byte {
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var b Builder
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b.String(t.GetPartition())
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b.String(t.GetNamespace())
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return b.Bytes()
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}
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var ReferenceOrIDFromArgs = SingleValueFromArgs[resource.ReferenceOrID](func(r resource.ReferenceOrID) ([]byte, error) {
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return IndexFromRefOrID(r), nil
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})
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var PrefixReferenceOrIDFromArgs = SingleValueFromArgs[resource.ReferenceOrID](func(r resource.ReferenceOrID) ([]byte, error) {
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return PrefixIndexFromRefOrID(r), nil
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})
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var MaybePrefixReferenceOrIDFromArgs = SingleValueFromOneOrTwoArgs[resource.ReferenceOrID, IndexQueryOptions](func(r resource.ReferenceOrID, opts IndexQueryOptions) ([]byte, error) {
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if opts.Prefix {
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return PrefixIndexFromRefOrID(r), nil
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} else {
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return IndexFromRefOrID(r), nil
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}
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})
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func SingleValueFromArgs[T any](indexer func(value T) ([]byte, error)) func(args ...any) ([]byte, error) {
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return func(args ...any) ([]byte, error) {
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var zero T
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if l := len(args); l != 1 {
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return nil, fmt.Errorf("expected 1 arg, got: %d", l)
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}
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value, ok := args[0].(T)
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if !ok {
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return nil, fmt.Errorf("expected %T, got: %T", zero, args[0])
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}
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return indexer(value)
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}
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}
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func SingleValueFromOneOrTwoArgs[T1 any, T2 any](indexer func(value T1, optional T2) ([]byte, error)) func(args ...any) ([]byte, error) {
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return func(args ...any) ([]byte, error) {
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var value T1
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var optional T2
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l := len(args)
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switch l {
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case 2:
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val, ok := args[1].(T2)
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if !ok {
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return nil, fmt.Errorf("expected second argument type of %T, got: %T", optional, args[1])
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}
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optional = val
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fallthrough
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case 1:
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val, ok := args[0].(T1)
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if !ok {
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return nil, fmt.Errorf("expected first argument type of %T, got: %T", value, args[0])
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}
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value = val
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default:
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return nil, fmt.Errorf("expected 1 or 2 args, got: %d", l)
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}
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return indexer(value, optional)
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}
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}
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