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blockdatafactory.go
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/
blockdatafactory.go
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/*
* Copyright 2022 ICON Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package block
import (
"io"
"github.com/icon-project/goloop/chain/base"
"github.com/icon-project/goloop/common/errors"
"github.com/icon-project/goloop/module"
)
type blockDataFactory struct {
handlers handlerList
}
func NewBlockDataFactory(
c module.Chain,
handlers []base.BlockHandler,
) (module.BlockDataFactory, error) {
if handlers == nil {
handlers = []base.BlockHandler{NewBlockV2Handler(c)}
}
return &blockDataFactory{
handlers: handlers,
}, nil
}
func (f *blockDataFactory) NewBlockDataFromReader(r io.Reader) (module.BlockData, error) {
v, r, err := PeekVersion(r)
if err != nil {
return nil, err
}
h, ok := f.handlers.forVersion(v)
if !ok {
return nil, errors.UnsupportedError.Errorf("unsupported block version %d", v)
}
return h.NewBlockDataFromReader(r)
}