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namespace.go
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namespace.go
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// The MIT License
//
// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
//
// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package interceptor
import (
"fmt"
"go.temporal.io/api/serviceerror"
"go.temporal.io/api/workflowservice/v1"
"go.temporal.io/server/common/namespace"
)
// gRPC method request must implement either NamespaceNameGetter or NamespaceIDGetter
// for namespace specific metrics to be reported properly
type (
NamespaceNameGetter interface {
GetNamespace() string
}
NamespaceIDGetter interface {
GetNamespaceId() string
}
)
// MustGetNamespaceName returns request namespace name
// or EmptyName if there's error when retriving namespace name,
// e.g. unable to find namespace
func MustGetNamespaceName(
namespaceRegistry namespace.Registry,
req interface{},
) namespace.Name {
namespaceName, err := GetNamespaceName(namespaceRegistry, req)
if err != nil {
return namespace.EmptyName
}
return namespaceName
}
func GetNamespaceName(
namespaceRegistry namespace.Registry,
req interface{},
) (namespace.Name, error) {
switch request := req.(type) {
case *workflowservice.RegisterNamespaceRequest:
// For namespace registration requests, we don't expect to find namespace so skip checking caches
// to avoid caching a NotFound error from persistence readthrough
return namespace.Name(request.GetNamespace()), nil
case NamespaceNameGetter:
namespaceName := namespace.Name(request.GetNamespace())
_, err := namespaceRegistry.GetNamespace(namespaceName)
if err != nil {
return namespace.EmptyName, err
}
return namespaceName, nil
case NamespaceIDGetter:
namespaceID := namespace.ID(request.GetNamespaceId())
namespaceName, err := namespaceRegistry.GetNamespaceName(namespaceID)
if err != nil {
return namespace.EmptyName, err
}
return namespaceName, nil
default:
return namespace.EmptyName, serviceerror.NewInternal(fmt.Sprintf("unable to extract namespace info from request of type %T", req))
}
}