Examples with BlockData org.hyperledger.besu.chainimport.internal.BlockData used on opensource projects

Example 1 with BlockData

use of org.hyperledger.besu.chainimport.internal.BlockData in project besu by hyperledger.

the class JsonBlockImporter method getParentHeader.

private BlockHeader getParentHeader(final BlockData blockData, final List<Block> importedBlocks) {
    if (blockData.getParentHash().isPresent()) {
        final Hash parentHash = blockData.getParentHash().get();
        return controller.getProtocolContext().getBlockchain().getBlockHeader(parentHash).orElseThrow(() -> new IllegalArgumentException("Unable to locate block parent at " + parentHash));
    }
    if (importedBlocks.size() > 0 && blockData.getNumber().isPresent()) {
        final long targetParentBlockNumber = blockData.getNumber().get() - 1L;
        Optional<BlockHeader> maybeHeader = importedBlocks.stream().map(Block::getHeader).filter(h -> h.getNumber() == targetParentBlockNumber).findFirst();
        if (maybeHeader.isPresent()) {
            return maybeHeader.get();
        }
    }
    long blockNumber;
    if (blockData.getNumber().isPresent()) {
        blockNumber = blockData.getNumber().get() - 1L;
    } else if (importedBlocks.size() > 0) {
        // If there is no number or hash, import blocks in order
        blockNumber = importedBlocks.get(importedBlocks.size() - 1).getHeader().getNumber();
    } else {
        blockNumber = BlockHeader.GENESIS_BLOCK_NUMBER;
    }
    if (blockNumber < BlockHeader.GENESIS_BLOCK_NUMBER) {
        throw new IllegalArgumentException("Invalid block number: " + blockNumber + 1);
    }
    return controller.getProtocolContext().getBlockchain().getBlockHeader(blockNumber).orElseThrow(() -> new IllegalArgumentException("Unable to locate block parent at " + blockNumber));
}

Example 2 with BlockData

use of org.hyperledger.besu.chainimport.internal.BlockData in project besu by hyperledger.

the class JsonBlockImporter method importChain.

public void importChain(final String chainJson) throws IOException {
    warnIfDatabaseIsNotEmpty();
    final ChainData chainData = mapper.readValue(chainJson, ChainData.class);
    final List<Block> importedBlocks = new ArrayList<>();
    for (final BlockData blockData : chainData.getBlocks()) {
        final BlockHeader parentHeader = getParentHeader(blockData, importedBlocks);
        final Block importedBlock = processBlockData(blockData, parentHeader);
        importedBlocks.add(importedBlock);
    }
    this.warnIfImportedBlocksAreNotOnCanonicalChain(importedBlocks);
}