Golang DBOverlay.FetchDBlock方法代碼示例

func FetchBlockSet(dbo interfaces.DBOverlay, dBlockHash interfaces.IHash) *BlockSet {
	bs := new(BlockSet)

	dBlock, err := dbo.FetchDBlock(dBlockHash)
	if err != nil {
		panic(err)
	}
	bs.DBlock = dBlock

	if dBlock == nil {
		return bs
	}
	entries := dBlock.GetDBEntries()
	for _, entry := range entries {
		switch entry.GetChainID().String() {
		case "000000000000000000000000000000000000000000000000000000000000000a":
			aBlock, err := dbo.FetchABlock(entry.GetKeyMR())
			if err != nil {
				panic(err)
			}
			bs.ABlock = aBlock
			break
		case "000000000000000000000000000000000000000000000000000000000000000c":
			ecBlock, err := dbo.FetchECBlock(entry.GetKeyMR())
			if err != nil {
				panic(err)
			}
			bs.ECBlock = ecBlock
			break
		case "000000000000000000000000000000000000000000000000000000000000000f":
			fBlock, err := dbo.FetchFBlock(entry.GetKeyMR())
			if err != nil {
				panic(err)
			}
			bs.FBlock = fBlock
			break
		default:
			break
		}
	}

	return bs
}

func CreateReceipt(dbo interfaces.DBOverlay, entryID interfaces.IHash) (*Receipt, error) {
	receipt := new(Receipt)
	receipt.Entry = new(JSON)
	receipt.Entry.Key = entryID.String()

	//EBlock

	hash, err := dbo.FetchIncludedIn(entryID)
	if err != nil {
		return nil, err
	}

	if hash == nil {
		return nil, fmt.Errorf("Block containing entry not found")
	}

	eBlock, err := dbo.FetchEBlock(hash)
	if err != nil {
		return nil, err
	}

	if eBlock == nil {
		return nil, fmt.Errorf("EBlock not found")
	}

	hash = eBlock.DatabasePrimaryIndex()
	receipt.EntryBlockKeyMR = hash.(*primitives.Hash)

	entries := eBlock.GetEntryHashes()
	//fmt.Printf("eBlock entries - %v\n\n", entries)
	branch := primitives.BuildMerkleBranchForEntryHash(entries, entryID, true)
	blockNode := new(primitives.MerkleNode)
	left, err := eBlock.HeaderHash()
	if err != nil {
		return nil, err
	}
	blockNode.Left = left.(*primitives.Hash)
	blockNode.Right = eBlock.BodyKeyMR().(*primitives.Hash)
	blockNode.Top = hash.(*primitives.Hash)
	//fmt.Printf("eBlock blockNode - %v\n\n", blockNode)
	branch = append(branch, blockNode)
	receipt.MerkleBranch = append(receipt.MerkleBranch, branch...)

	//str, _ := eBlock.JSONString()
	//fmt.Printf("eBlock - %v\n\n", str)

	//DBlock

	hash, err = dbo.FetchIncludedIn(hash)
	if err != nil {
		return nil, err
	}

	if hash == nil {
		return nil, fmt.Errorf("Block containing EBlock not found")
	}

	dBlock, err := dbo.FetchDBlock(hash)
	if err != nil {
		return nil, err
	}

	if dBlock == nil {
		return nil, fmt.Errorf("DBlock not found")
	}

	//str, _ = dBlock.JSONString()
	//fmt.Printf("dBlock - %v\n\n", str)

	entries = dBlock.GetEntryHashesForBranch()
	//fmt.Printf("dBlock entries - %v\n\n", entries)

	//merkleTree := primitives.BuildMerkleTreeStore(entries)
	//fmt.Printf("dBlock merkleTree - %v\n\n", merkleTree)

	branch = primitives.BuildMerkleBranchForEntryHash(entries, receipt.EntryBlockKeyMR, true)
	blockNode = new(primitives.MerkleNode)
	left, err = dBlock.HeaderHash()
	if err != nil {
		return nil, err
	}
	blockNode.Left = left.(*primitives.Hash)
	blockNode.Right = dBlock.BodyKeyMR().(*primitives.Hash)
	blockNode.Top = hash.(*primitives.Hash)
	//fmt.Printf("dBlock blockNode - %v\n\n", blockNode)
	branch = append(branch, blockNode)
	receipt.MerkleBranch = append(receipt.MerkleBranch, branch...)

	//DirBlockInfo

	hash = dBlock.DatabasePrimaryIndex()
	receipt.DirectoryBlockKeyMR = hash.(*primitives.Hash)

	dirBlockInfo, err := dbo.FetchDirBlockInfoByKeyMR(hash)
	if err != nil {
		return nil, err
	}

	if dirBlockInfo != nil {
		dbi := dirBlockInfo.(*dbInfo.DirBlockInfo)
//.........這裏部分代碼省略.........

func CheckDatabaseForMissingEntries(dbo interfaces.DBOverlay) {
	fmt.Printf("\t\tIterating over DBlocks\n")

	prevD, err := dbo.FetchDBlockHead()
	if err != nil {
		panic(err)
	}

	HashMap = map[string]string{}

	for {
		CheckDBlockEntries(prevD, dbo)
		HashMap[prevD.DatabasePrimaryIndex().String()] = "OK"

		if prevD.GetHeader().GetPrevKeyMR().String() == "0000000000000000000000000000000000000000000000000000000000000000" {
			break
		}
		dBlock, err := dbo.FetchDBlock(prevD.GetHeader().GetPrevKeyMR())
		if err != nil {
			panic(err)
		}
		if dBlock == nil {
			fmt.Printf("Found a missing dblock - %v\n", prevD.GetHeader().GetPrevKeyMR().String())
			dblock, err := GetDBlock(prevD.GetHeader().GetPrevKeyMR().String())
			if err != nil {
				panic(err)
			}
			err = dbo.ProcessDBlockBatchWithoutHead(dblock)
			if err != nil {
				panic(err)
			}
		} else {
			//only iterate to the next block if it was properly fetched from the database
			prevD = dBlock
		}
	}

	fmt.Printf("\t\tIterating over ECBlocks\n")
	prevEC, err := dbo.FetchECBlockHead()
	if err != nil {
		panic(err)
	}
	for {
		HashMap[prevEC.DatabasePrimaryIndex().String()] = "OK"
		if prevEC.GetHeader().GetPrevHeaderHash().String() == "0000000000000000000000000000000000000000000000000000000000000000" {
			break
		}
		ecBlock, err := dbo.FetchECBlock(prevEC.GetHeader().GetPrevHeaderHash())
		if err != nil {
			panic(err)
		}
		if ecBlock == nil {
			fmt.Printf("Found a missing ecblock - %v\n", prevEC.GetHeader().GetPrevHeaderHash().String())
			ecblock, err := GetECBlock(prevEC.GetHeader().GetPrevHeaderHash().String())
			if err != nil {
				panic(err)
			}
			err = dbo.ProcessECBlockBatchWithoutHead(ecblock, true)
			if err != nil {
				panic(err)
			}
		} else {
			//only iterate to the next block if it was properly fetched from the database
			prevEC = ecBlock
		}
	}

	fmt.Printf("\t\tIterating over FBlocks\n")
	prevF, err := dbo.FetchFBlockHead()
	if err != nil {
		panic(err)
	}
	for {
		HashMap[prevF.DatabasePrimaryIndex().String()] = "OK"
		if prevF.GetPrevKeyMR().String() == "0000000000000000000000000000000000000000000000000000000000000000" {
			break
		}
		fBlock, err := dbo.FetchFBlock(prevF.GetPrevKeyMR())
		if err != nil {
			panic(err)
		}
		if fBlock == nil {
			fmt.Printf("Found a missing fblock - %v\n", prevF.GetPrevKeyMR().String())
			fBlock, err := GetFBlock(prevF.GetPrevKeyMR().String())
			if err != nil {
				panic(err)
			}
			err = dbo.ProcessFBlockBatchWithoutHead(fBlock)
			if err != nil {
				panic(err)
			}
		} else {
			//only iterate to the next block if it was properly fetched from the database
			prevF = fBlock
		}
	}

	fmt.Printf("\t\tIterating over ABlocks\n")
	prevA, err := dbo.FetchABlockHead()
	if err != nil {
//.........這裏部分代碼省略.........