storj/pkg/overlay/mockoverlay.go
Egon Elbre b6b6111173
Flatten proto definitions into a single package (#360)
* protos: move streams to pb
* protos: move overlay to pb
* protos: move pointerdb to pb
* protos: move piecestore to pb
* fix statdb import naming
2018-09-18 07:39:06 +03:00

88 lines
2.4 KiB
Go

// Copyright (C) 2018 Storj Labs, Inc.
// See LICENSE for copying information.
package overlay
import (
"context"
"strings"
"github.com/zeebo/errs"
"storj.io/storj/pkg/pb"
"storj.io/storj/pkg/provider"
)
// MockOverlay is a mocked overlay implementation
type MockOverlay struct {
nodes map[string]*pb.Node
}
// NewMockOverlay creates a new overlay mock
func NewMockOverlay(nodes []*pb.Node) *MockOverlay {
rv := &MockOverlay{nodes: map[string]*pb.Node{}}
for _, node := range nodes {
rv.nodes[node.Id] = node
}
return rv
}
// FindStorageNodes finds storage nodes based on the request
func (mo *MockOverlay) FindStorageNodes(ctx context.Context,
req *pb.FindStorageNodesRequest) (resp *pb.FindStorageNodesResponse,
err error) {
nodes := make([]*pb.Node, 0, len(mo.nodes))
for _, node := range mo.nodes {
nodes = append(nodes, node)
}
if int64(len(nodes)) < req.Opts.GetAmount() {
return nil, errs.New("not enough farmers exist")
}
nodes = nodes[:req.Opts.GetAmount()]
return &pb.FindStorageNodesResponse{Nodes: nodes}, nil
}
// Lookup finds a single storage node based on the request
func (mo *MockOverlay) Lookup(ctx context.Context, req *pb.LookupRequest) (
*pb.LookupResponse, error) {
return &pb.LookupResponse{Node: mo.nodes[req.NodeID]}, nil
}
//BulkLookup finds multiple storage nodes based on the requests
func (mo *MockOverlay) BulkLookup(ctx context.Context, reqs *pb.LookupRequests) (
*pb.LookupResponses, error) {
var responses []*pb.LookupResponse
for _, r := range reqs.Lookuprequest {
n := *mo.nodes[r.NodeID]
resp := &pb.LookupResponse{Node: &n}
responses = append(responses, resp)
}
return &pb.LookupResponses{Lookupresponse: responses}, nil
}
// MockConfig specifies static nodes for mock overlay
type MockConfig struct {
Nodes string `help:"a comma-separated list of <node-id>:<ip>:<port>" default:""`
}
// Run runs server with mock overlay
func (c MockConfig) Run(ctx context.Context, server *provider.Provider) error {
var nodes []*pb.Node
for _, nodestr := range strings.Split(c.Nodes, ",") {
parts := strings.SplitN(nodestr, ":", 2)
if len(parts) != 2 {
return Error.New("malformed node config: %#v", nodestr)
}
id, addr := parts[0], parts[1]
nodes = append(nodes, &pb.Node{
Id: id,
Address: &pb.NodeAddress{
Transport: pb.NodeTransport_TCP,
Address: addr,
}})
}
pb.RegisterOverlayServer(server.GRPC(), NewMockOverlay(nodes))
return server.Run(ctx)
}