92a2be2abd
As part of the Metainfo Refactoring, we need to make the Metainfo Loop working with both the current PointerDB and the new Metabase. Thus, the Metainfo Loop should pass to the Observer interface more specific Object and Segment types instead of pb.Pointer. After this change, there are still a couple of use cases that require access to the pb.Pointer (hence we have it as a field in the metainfo.Segment type): 1. Expired Deletion Service 2. Repair Service It would require additional refactoring in these two services before we are able to clean this. Change-Id: Ib3eb6b7507ed89d5ba745ffbb6b37524ef10ed9f
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package audit
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import (
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"context"
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"math/rand"
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"storj.io/common/storj"
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"storj.io/storj/satellite/metainfo"
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)
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var _ metainfo.Observer = (*PathCollector)(nil)
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// PathCollector uses the metainfo loop to add paths to node reservoirs
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//
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// architecture: Observer
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type PathCollector struct {
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Reservoirs map[storj.NodeID]*Reservoir
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slotCount int
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rand *rand.Rand
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}
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// NewPathCollector instantiates a path collector.
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func NewPathCollector(reservoirSlots int, r *rand.Rand) *PathCollector {
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return &PathCollector{
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Reservoirs: make(map[storj.NodeID]*Reservoir),
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slotCount: reservoirSlots,
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rand: r,
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}
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}
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// RemoteSegment takes a remote segment found in metainfo and creates a reservoir for it if it doesn't exist already.
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func (collector *PathCollector) RemoteSegment(ctx context.Context, segment *metainfo.Segment) (err error) {
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// TODO change Sample to accept SegmentLocation
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key := string(segment.Location.Encode())
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for _, piece := range segment.Pieces {
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if _, ok := collector.Reservoirs[piece.StorageNode]; !ok {
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collector.Reservoirs[piece.StorageNode] = NewReservoir(collector.slotCount)
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}
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collector.Reservoirs[piece.StorageNode].Sample(collector.rand, key)
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}
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return nil
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}
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// Object returns nil because the audit service does not interact with objects.
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func (collector *PathCollector) Object(ctx context.Context, object *metainfo.Object) (err error) {
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return nil
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}
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// InlineSegment returns nil because we're only auditing for storage nodes for now.
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func (collector *PathCollector) InlineSegment(ctx context.Context, segment *metainfo.Segment) (err error) {
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return nil
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}
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