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repository.go
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repository.go
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// Copyright (c) 2020 BitMaelum Authors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
package routing
import (
"os"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/dynamodb"
)
// ResolveInfoType returns information found in the resolver repository
type ResolveInfoType struct {
Hash string
Routing string
PubKey string
Serial uint64
}
// Repository to resolve records
type Repository interface {
Get(hash string) (*ResolveInfoType, error)
Create(hash, routing, publicKey string) (bool, error)
Update(info *ResolveInfoType, routing, publicKey string) (bool, error)
Delete(hash string) (bool, error)
}
var resolver Repository
// GetResolveRepository returns a new repository based on DynamoDB
func GetResolveRepository() Repository {
if resolver != nil {
return resolver
}
if os.Getenv("USE_BOLT") == "1" {
resolver = NewBoltResolver()
return resolver
}
sess := session.Must(session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
}))
resolver = NewDynamoDBResolver(dynamodb.New(sess), os.Getenv("ROUTING_TABLE_NAME"))
return resolver
}
// Sets the default repository for resolving. Can be used to override for mocking/testing purposes
func SetDefaultRepository(r Repository) {
resolver = r
}