ipld-eth-server/pkg/history/validate_blocks.go
Matt K ed907535e3 Separate DB access into several repos (#28)
* Separate files for InMemory

* Start using separate repos for collaborating objects

* Before Updating schema

* Separate various repos
2018-02-12 10:54:05 -06:00

69 lines
1.8 KiB
Go

package history
import (
"io"
"text/template"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/repositories"
)
const WindowTemplate = `Validating Blocks
|{{.LowerBound}}|-- Validation Window --|{{.UpperBound}}| ({{.UpperBound}}:HEAD)
`
var ParsedWindowTemplate = *template.Must(template.New("window").Parse(WindowTemplate))
type BlockValidator struct {
blockchain core.Blockchain
blockRepository repositories.BlockRepository
windowSize int
parsedLoggingTemplate template.Template
}
func NewBlockValidator(blockchain core.Blockchain, blockRepository repositories.BlockRepository, windowSize int) *BlockValidator {
return &BlockValidator{
blockchain,
blockRepository,
windowSize,
ParsedWindowTemplate,
}
}
func (bv BlockValidator) ValidateBlocks() ValidationWindow {
window := MakeValidationWindow(bv.blockchain, bv.windowSize)
blockNumbers := MakeRange(window.LowerBound, window.UpperBound)
RetrieveAndUpdateBlocks(bv.blockchain, bv.blockRepository, blockNumbers)
lastBlock := bv.blockchain.LastBlock().Int64()
bv.blockRepository.SetBlocksStatus(lastBlock)
return window
}
func (bv BlockValidator) Log(out io.Writer, window ValidationWindow) {
bv.parsedLoggingTemplate.Execute(out, window)
}
type ValidationWindow struct {
LowerBound int64
UpperBound int64
}
func (window ValidationWindow) Size() int {
return int(window.UpperBound - window.LowerBound)
}
func MakeValidationWindow(blockchain core.Blockchain, windowSize int) ValidationWindow {
upperBound := blockchain.LastBlock().Int64()
lowerBound := upperBound - int64(windowSize)
return ValidationWindow{lowerBound, upperBound}
}
func MakeRange(min, max int64) []int64 {
a := make([]int64, max-min)
for i := range a {
a[i] = min + int64(i)
}
return a
}