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wxing1292andGitHub
44d29fb18c
* Rename source cluster key to client cluster key * Rename target cluster key to server cluster key Before this PR: source cluster key means the source of the stream, but this usually means the target of replication data flow; target cluster key means the target of the stream, but this usually means the source of replication data flow; the meaning can be misleading
114 lines
3.7 KiB
Go
114 lines
3.7 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package history
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import (
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"fmt"
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"strconv"
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"go.temporal.io/api/serviceerror"
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"google.golang.org/grpc/metadata"
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)
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const (
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MetadataKeyClientClusterID = "temporal-client-cluster-id"
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MetadataKeyClientShardID = "temporal-client-shard-id"
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MetadataKeyServerClusterID = "temporal-server-cluster-id"
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MetadataKeyServerShardID = "temporal-server-shard-id"
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)
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type (
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ClusterShardID struct {
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ClusterID int32
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ShardID int32
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}
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)
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func EncodeClusterShardMD(
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sourceClusterShardID ClusterShardID,
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targetClusterShardID ClusterShardID,
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) metadata.MD {
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return metadata.Pairs(
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MetadataKeyClientClusterID, strconv.Itoa(int(sourceClusterShardID.ClusterID)),
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MetadataKeyClientShardID, strconv.Itoa(int(sourceClusterShardID.ShardID)),
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MetadataKeyServerClusterID, strconv.Itoa(int(targetClusterShardID.ClusterID)),
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MetadataKeyServerShardID, strconv.Itoa(int(targetClusterShardID.ShardID)),
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)
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}
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func DecodeClusterShardMD(
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clusterShardMD metadata.MD,
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) (_ ClusterShardID, _ ClusterShardID, _ error) {
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var clientClusterShardID ClusterShardID
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var serverClusterShardID ClusterShardID
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clientClusterID, err := parseInt32(clusterShardMD, MetadataKeyClientClusterID)
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if err != nil {
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return clientClusterShardID, serverClusterShardID, err
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}
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clientShardID, err := parseInt32(clusterShardMD, MetadataKeyClientShardID)
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if err != nil {
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return clientClusterShardID, serverClusterShardID, err
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}
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clientClusterShardID.ClusterID = clientClusterID
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clientClusterShardID.ShardID = clientShardID
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serverClusterID, err := parseInt32(clusterShardMD, MetadataKeyServerClusterID)
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if err != nil {
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return clientClusterShardID, serverClusterShardID, err
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}
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serverShardID, err := parseInt32(clusterShardMD, MetadataKeyServerShardID)
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if err != nil {
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return clientClusterShardID, serverClusterShardID, err
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}
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serverClusterShardID.ClusterID = serverClusterID
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serverClusterShardID.ShardID = serverShardID
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return clientClusterShardID, serverClusterShardID, nil
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}
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func parseInt32(
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clusterShardMD metadata.MD,
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metadataKey string,
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) (int32, error) {
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metadataValues := clusterShardMD.Get(metadataKey)
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if len(metadataValues) != 1 {
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return 0, serviceerror.NewInvalidArgument(fmt.Sprintf(
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"unable to parse metadata key %v: %v",
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metadataKey,
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metadataValues,
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))
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}
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metadataValue, err := strconv.Atoi(metadataValues[0])
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if err != nil {
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return 0, serviceerror.NewInvalidArgument(fmt.Sprintf(
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"unable to parse metadata key %v: %v",
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metadataKey,
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metadataValues,
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))
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}
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return int32(metadataValue), nil
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}
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