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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package scaler
import (
"context"
"errors"
"io"
"sort"
"github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/test"
"github.com/stretchr/testify/mock"
"github.com/weaviate/weaviate/entities/backup"
"github.com/weaviate/weaviate/usecases/sharding"
)
const (
localNode = "N1"
)
var (
anyVal = mock.Anything
errAny = errors.New("any error")
)
type fakeFactory struct {
LocalNode string
Nodes []string
ShardingState fakeShardingState
NodeHostMap map[string]string
Source *fakeSource
Client *fakeClient
logger logrus.FieldLogger
}
func newFakeFactory() *fakeFactory {
nodeHostMap := map[string]string{"N1": "H1", "N2": "H2", "N3": "H3", "N4": "H4"}
nodes := []string{"N1", "N2", "N3", "N4"}
logger, _ := test.NewNullLogger()
return &fakeFactory{
LocalNode: localNode,
Nodes: nodes,
ShardingState: fakeShardingState{
LocalNode: localNode,
M: map[string][]string{
"S1": {"N1"},
"S3": {"N3", "N4"},
},
},
NodeHostMap: nodeHostMap,
Source: &fakeSource{},
Client: &fakeClient{},
logger: logger,
}
}
func (f *fakeFactory) Scaler(dataPath string) *Scaler {
nodeResolver := newFakeNodeResolver(f.LocalNode, f.NodeHostMap)
scaler := New(
nodeResolver,
f.Source,
f.Client,
f.logger,
dataPath)
scaler.SetSchemaManager(&f.ShardingState)
return scaler
}
type fakeShardingState struct {
LocalNode string
M map[string][]string
}
func (f *fakeShardingState) CopyShardingState(class string) *sharding.State {
if len(f.M) == 0 {
return nil
}
state := sharding.State{}
state.Physical = make(map[string]sharding.Physical)
for shard, nodes := range f.M {
state.Physical[shard] = sharding.Physical{BelongsToNodes: nodes}
}
state.SetLocalName(f.LocalNode)
return &state
}
// func newShardingState(nShard, rf int, localNode string) fakeShardingState {
// m := make(map[string][]string)
// for i := 0; i < nShard; i++ {
// replicas := make([]string, rf)
// for j := 0; j < rf; j++ {
// replicas[j] = "N" + strconv.Itoa(j+1)
// }
// m["S"+strconv.Itoa(i+1)] = replicas
// }
// return fakeShardingState{M: m, LocalNode: localNode}
// }
// node resolver
type fakeNodeResolver struct {
NodeName string
M map[string]string
}
func newFakeNodeResolver(localNode string, nodeHostMap map[string]string) *fakeNodeResolver {
return &fakeNodeResolver{NodeName: localNode, M: nodeHostMap}
}
func (r *fakeNodeResolver) NodeHostname(nodeName string) (string, bool) {
host, ok := r.M[nodeName]
return host, ok
}
func (r *fakeNodeResolver) Candidates() []string {
xs := make([]string, 0, len(r.M))
for k := range r.M {
xs = append(xs, k)
}
sort.Strings(xs)
return xs
}
func (r *fakeNodeResolver) LocalName() string {
return r.NodeName
}
type fakeSource struct {
mock.Mock
}
func (s *fakeSource) ReleaseBackup(ctx context.Context, id, class string) error {
args := s.Called(ctx, id, class)
return args.Error(0)
}
func (s *fakeSource) ShardsBackup(
ctx context.Context, id, class string, shards []string,
) (_ backup.ClassDescriptor, err error) {
args := s.Called(ctx, id, class, shards)
return args.Get(0).(backup.ClassDescriptor), args.Error(1)
}
type fakeClient struct {
mock.Mock
}
func (f *fakeClient) PutFile(ctx context.Context, host, class,
shard, filename string, payload io.ReadSeekCloser,
) error {
args := f.Called(ctx, host, class, shard, filename, payload)
return args.Error(0)
}
func (f *fakeClient) CreateShard(ctx context.Context, host, class, name string) error {
args := f.Called(ctx, host, class, name)
return args.Error(0)
}
func (f *fakeClient) ReInitShard(ctx context.Context, host, class, shard string,
) error {
args := f.Called(ctx, host, class, shard)
return args.Error(0)
}
func (f *fakeClient) IncreaseReplicationFactor(ctx context.Context,
host, class string, dist ShardDist,
) error {
args := f.Called(ctx, host, class, dist)
return args.Error(0)
}
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