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read_range_blocks.go
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/
read_range_blocks.go
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package storage
import (
"context"
"github.com/rs/zerolog/log"
"github.com/onflow/flow-go/admin"
"github.com/onflow/flow-go/admin/commands"
"github.com/onflow/flow-go/cmd/util/cmd/read-light-block"
"github.com/onflow/flow-go/storage"
)
var _ commands.AdminCommand = (*ReadRangeBlocksCommand)(nil)
// 10001 instead of 10000, because 10000 won't allow a range from 10000 to 20000,
// which is easier to type than [10001, 20000]
const Max_Range_Block_Limit = uint64(10001)
type ReadRangeBlocksCommand struct {
blocks storage.Blocks
}
func NewReadRangeBlocksCommand(blocks storage.Blocks) commands.AdminCommand {
return &ReadRangeBlocksCommand{
blocks: blocks,
}
}
func (c *ReadRangeBlocksCommand) Handler(ctx context.Context, req *admin.CommandRequest) (interface{}, error) {
reqData, err := parseHeightRangeRequestData(req)
if err != nil {
return nil, err
}
log.Info().Str("module", "admin-tool").Msgf("read range blocks, data: %v", reqData)
if reqData.Range() > Max_Range_Block_Limit {
return nil, admin.NewInvalidAdminReqErrorf("getting for more than %v blocks at a time might have an impact to node's performance and is not allowed", Max_Range_Block_Limit)
}
lights, err := read.ReadLightBlockByHeightRange(c.blocks, reqData.startHeight, reqData.endHeight)
if err != nil {
return nil, err
}
return commands.ConvertToInterfaceList(lights)
}
func (c *ReadRangeBlocksCommand) Validator(req *admin.CommandRequest) error {
return nil
}