1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
// Copyright 2016 Google LLC. 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.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package log
import (
"context"
"fmt"
"time"
"github.com/google/trillian"
"github.com/google/trillian/extension"
"github.com/google/trillian/trees"
"k8s.io/klog/v2"
)
// SequencerManager provides sequencing operations for a collection of Logs.
type SequencerManager struct {
guardWindow time.Duration
registry extension.Registry
}
var seqOpts = trees.NewGetOpts(trees.SequenceLog, trillian.TreeType_LOG, trillian.TreeType_PREORDERED_LOG)
// NewSequencerManager creates a new SequencerManager instance based on the provided KeyManager instance
// and guard window.
func NewSequencerManager(registry extension.Registry, gw time.Duration) *SequencerManager {
InitMetrics(registry.MetricFactory)
return &SequencerManager{
guardWindow: gw,
registry: registry,
}
}
// ExecutePass performs sequencing for the specified Log.
func (s *SequencerManager) ExecutePass(ctx context.Context, logID int64, info *OperationInfo) (int, error) {
// TODO(Martin2112): Honor the sequencing enabled in log parameters, needs an API change
// so deferring it
tree, err := trees.GetTree(ctx, s.registry.AdminStorage, logID, seqOpts)
if err != nil {
return 0, fmt.Errorf("error retrieving log %v: %v", logID, err)
}
ctx = trees.NewContext(ctx, tree)
maxRootDuration := tree.MaxRootDuration.AsDuration()
if !tree.MaxRootDuration.IsValid() {
klog.Warning("failed to parse tree.MaxRootDuration, using zero")
maxRootDuration = 0
}
leaves, err := IntegrateBatch(ctx, tree, info.BatchSize, s.guardWindow, maxRootDuration, info.TimeSource, s.registry.LogStorage, s.registry.QuotaManager)
if err != nil {
return 0, fmt.Errorf("failed to integrate batch for %v: %v", logID, err)
}
return leaves, nil
}
|
