79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
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// Copyright (C) 2018 Storj Labs, Inc.
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// See LICENSE for copying information.
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package provider
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import (
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"context"
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"crypto/tls"
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"net"
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"google.golang.org/grpc"
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"storj.io/storj/pkg/peertls"
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)
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// Responsibility represents a specific gRPC method collection to be registered
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// on a shared gRPC server. PointerDB, OverlayCache, PieceStore, Kademlia,
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// StatDB, etc. are all examples of Responsibilities.
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type Responsibility interface {
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Run(ctx context.Context, server *Provider) error
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}
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// Provider represents a bundle of responsibilities defined by a specific ID.
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// Examples of providers are the heavy client, the farmer, and the gateway.
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type Provider struct {
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lis net.Listener
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g *grpc.Server
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next []Responsibility
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identity *FullIdentity
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}
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// NewProvider creates a Provider out of an Identity, a net.Listener, and a set
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// of responsibilities.
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func NewProvider(identity *FullIdentity, lis net.Listener,
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responsibilities ...Responsibility) (*Provider, error) {
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return &Provider{
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lis: lis,
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g: grpc.NewServer(),
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next: responsibilities,
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identity: identity,
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}, nil
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}
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// Identity returns the provider's identity
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func (p *Provider) Identity() *FullIdentity { return p.identity }
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// GRPC returns the provider's gRPC server for registration purposes
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func (p *Provider) GRPC() *grpc.Server { return p.g }
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// Close shuts down the provider
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func (p *Provider) Close() error {
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p.g.GracefulStop()
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return nil
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}
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// Run will run the provider and all of its responsibilities
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func (p *Provider) Run(ctx context.Context) (err error) {
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defer mon.Task()(&ctx)(&err)
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// are there any unstarted responsibilities? start those first. the
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// responsibilities know to call Run again once they're ready.
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if len(p.next) > 0 {
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next := p.next[0]
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p.next = p.next[1:]
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return next.Run(ctx, p)
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}
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return p.g.Serve(p.lis)
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}
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// TLSConfig returns the provider's identity as a TLS Config
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func (p *Provider) TLSConfig() *tls.Config {
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// TODO(jt): get rid of tls.Certificate
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return (&peertls.TLSFileOptions{
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LeafCertificate: p.identity.todoCert,
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}).NewTLSConfig(nil)
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}
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