storj/pkg/piecestore/rpc/server/store.go
Alexander Leitner b0db33f919
Bandwidth accounting (#134)
* captplanet standalone farmer setup

* Bandwidth Allocation

* utils.Close method changed to utils.LogClose

* Get build temporarily working

* Get/Put for PSClient should take payer bandwidth allocations rather than the NewPSClient function

* Update example client to reflect changes in client API

* Update ecclient to use latest PSClient, Make NewPSClient return error also

* Updated pieceranger tests to check for errors; sign method should take byte array

* Handle defers in store.go better

* Fix defer functions in psdb.go

* fun times

* Protobuf bandwidthallocation data is now a byte array

* Remove psservice package and merge it into pstore server

* Write wrapper for database calls

* Change all expiration names in protobuf to be more informative; add defer in retrieve; remove old comment

* Make PSDB tests implementation independent rather than method independent

* get rid of payer, renter in ecclient

* add context monitoring in store and retrieve
2018-08-17 13:40:15 -04:00

99 lines
2.2 KiB
Go

// Copyright (C) 2018 Storj Labs, Inc.
// See LICENSE for copying information.
package server
import (
"context"
"io"
"log"
"github.com/zeebo/errs"
"storj.io/storj/pkg/piecestore"
"storj.io/storj/pkg/utils"
pb "storj.io/storj/protos/piecestore"
)
// OK - Success!
const OK = "OK"
// StoreError is a type of error for failures in Server.Store()
var StoreError = errs.Class("store error")
// Store incoming data using piecestore
func (s *Server) Store(reqStream pb.PieceStoreRoutes_StoreServer) (err error) {
ctx := reqStream.Context()
defer mon.Task()(&ctx)(&err)
// Receive id/ttl
recv, err := reqStream.Recv()
if err != nil {
return StoreError.Wrap(err)
}
if recv == nil {
return StoreError.New("Error receiving Piece metadata")
}
pd := recv.GetPiecedata()
if pd == nil {
return StoreError.New("PieceStore message is nil")
}
log.Printf("Storing %s...", pd.GetId())
if pd.GetId() == "" {
return StoreError.New("Piece ID not specified")
}
// If we put in the database first then that checks if the data already exists
if err = s.DB.AddTTLToDB(pd.GetId(), pd.GetExpirationUnixSec()); err != nil {
return StoreError.New("Failed to write expiration data to database")
}
total, err := s.storeData(ctx, reqStream, pd.GetId())
if err != nil {
return err
}
log.Printf("Successfully stored %s.", pd.GetId())
return reqStream.SendAndClose(&pb.PieceStoreSummary{Message: OK, TotalReceived: int64(total)})
}
func (s *Server) storeData(ctx context.Context, stream pb.PieceStoreRoutes_StoreServer, id string) (total int64, err error) {
defer mon.Task()(&ctx)(&err)
// Delete data if we error
defer func() {
if err != nil && err != io.EOF {
if err = s.deleteByID(id); err != nil {
log.Printf("Failed on deleteByID in Store: %s", err.Error())
}
}
}()
// Initialize file for storing data
storeFile, err := pstore.StoreWriter(id, s.DataDir)
if err != nil {
return 0, err
}
defer utils.LogClose(storeFile)
reader := NewStreamReader(s, stream)
defer func() {
err := s.DB.WriteBandwidthAllocToDB(reader.bandwidthAllocation)
if err != nil {
log.Printf("WriteBandwidthAllocToDB Error: %s\n", err.Error())
}
}()
total, err = io.Copy(storeFile, reader)
if err != nil && err != io.EOF {
return 0, err
}
return total, nil
}