func exportDChain(chain *common.DChain) {
if len(chain.Blocks) == 0 || procLog.Level() < factomlog.Info {
//log.Println("no blocks to save for chain: " + string (*chain.ChainID))
return
}
// get all ecBlocks from db
dBlocks, _ := db.FetchAllDBlocks()
sort.Sort(util.ByDBlockIDAccending(dBlocks))
for _, block := range dBlocks {
data, err := block.MarshalBinary()
if err != nil {
panic(err)
}
strChainID := chain.ChainID.String()
if fileNotExists(dataStorePath + strChainID) {
err := os.MkdirAll(dataStorePath+strChainID, 0777)
if err == nil {
procLog.Info("Created directory " + dataStorePath + strChainID)
} else {
procLog.Error(err)
}
}
err = ioutil.WriteFile(fmt.Sprintf(dataStorePath+strChainID+"/store.%09d.block", block.Header.DBHeight), data, 0777)
if err != nil {
panic(err)
}
}
}
// Initialize Directory Block Chain from database
func initDChain() {
dchain = new(common.DChain)
//Initialize the Directory Block Chain ID
dchain.ChainID = new(common.Hash)
barray := common.D_CHAINID
dchain.ChainID.SetBytes(barray)
// get all dBlocks from db
dBlocks, _ := db.FetchAllDBlocks()
sort.Sort(util.ByDBlockIDAccending(dBlocks))
dchain.Blocks = make([]*common.DirectoryBlock, len(dBlocks), len(dBlocks)+1)
for i := 0; i < len(dBlocks); i = i + 1 {
if dBlocks[i].Header.DBHeight != uint32(i) {
panic("Error in initializing dChain:" + dchain.ChainID.String())
}
dBlocks[i].Chain = dchain
dBlocks[i].IsSealed = true
dBlocks[i].IsSavedInDB = true
dchain.Blocks[i] = &dBlocks[i]
}
// double check the block ids
for i := 0; i < len(dchain.Blocks); i = i + 1 {
if uint32(i) != dchain.Blocks[i].Header.DBHeight {
panic(errors.New("BlockID does not equal index for chain:" + dchain.ChainID.String() + " block:" + fmt.Sprintf("%v", dchain.Blocks[i].Header.DBHeight)))
}
}
//Create an empty block and append to the chain
if len(dchain.Blocks) == 0 {
dchain.NextDBHeight = 0
dchain.NextBlock, _ = common.CreateDBlock(dchain, nil, 10)
} else {
dchain.NextDBHeight = uint32(len(dchain.Blocks))
dchain.NextBlock, _ = common.CreateDBlock(dchain, dchain.Blocks[len(dchain.Blocks)-1], 10)
// Update dir block height cache in db
db.UpdateBlockHeightCache(dchain.NextDBHeight-1, dchain.NextBlock.Header.PrevLedgerKeyMR)
}
exportDChain(dchain)
//Double check the sealed flag
if dchain.NextBlock.IsSealed == true {
panic("dchain.Blocks[dchain.NextBlockID].IsSealed for chain:" + dchain.ChainID.String())
}
}