52 lines
1.9 KiB
Go
52 lines
1.9 KiB
Go
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// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Contains a batch of utility type declarations used by the tests. As the node
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// operates on unique types, a lot of them are needed to check various features.
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package extractor
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import (
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/statediff/builder"
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"github.com/ethereum/go-ethereum/statediff/publisher"
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)
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type Extractor interface {
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ExtractStateDiff(parent, current types.Block) (string, error)
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}
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type extractor struct {
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Builder builder.Builder // Interface for building state diff objects from two blocks
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Publisher publisher.Publisher // Interface for publishing state diff objects to a datastore (e.g. IPFS)
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}
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func NewExtractor(builder builder.Builder, publisher publisher.Publisher) *extractor {
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return &extractor{
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Builder: builder,
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Publisher: publisher,
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}
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}
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func (e *extractor) ExtractStateDiff(parent, current types.Block) (string, error) {
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stateDiff, err := e.Builder.BuildStateDiff(parent.Root(), current.Root(), current.Number().Int64(), current.Hash())
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if err != nil {
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return "", err
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}
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return e.Publisher.PublishStateDiff(stateDiff)
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}
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