Examples with DebugAccountRangeAtResult org.hyperledger.besu.ethereum.api.jsonrpc.internal.results.DebugAccountRangeAtResult used on opensource projects

Example 1 with DebugAccountRangeAtResult

use of org.hyperledger.besu.ethereum.api.jsonrpc.internal.results.DebugAccountRangeAtResult in project besu by hyperledger.

the class DebugAccountRange method response.

@Override
public JsonRpcResponse response(final JsonRpcRequestContext requestContext) {
    final BlockParameterOrBlockHash blockParameterOrBlockHash = requestContext.getRequiredParameter(0, BlockParameterOrBlockHash.class);
    final String addressHash = requestContext.getRequiredParameter(2, String.class);
    final int maxResults = requestContext.getRequiredParameter(3, Integer.TYPE);
    final Optional<Hash> blockHashOptional = hashFromParameter(blockParameterOrBlockHash);
    if (blockHashOptional.isEmpty()) {
        return emptyResponse(requestContext);
    }
    final Hash blockHash = blockHashOptional.get();
    final Optional<BlockHeader> blockHeaderOptional = blockchainQueries.get().blockByHash(blockHash).map(BlockWithMetadata::getHeader);
    if (blockHeaderOptional.isEmpty()) {
        return emptyResponse(requestContext);
    }
    // TODO deal with mid-block locations
    final Optional<WorldState> state = blockchainQueries.get().getWorldState(blockHeaderOptional.get().getNumber());
    if (state.isEmpty()) {
        return emptyResponse(requestContext);
    } else {
        final List<StreamableAccount> accounts = state.get().streamAccounts(Bytes32.fromHexStringLenient(addressHash), maxResults + 1).collect(Collectors.toList());
        Bytes32 nextKey = Bytes32.ZERO;
        if (accounts.size() == maxResults + 1) {
            nextKey = accounts.get(maxResults).getAddressHash();
            accounts.remove(maxResults);
        }
        return new JsonRpcSuccessResponse(requestContext.getRequest().getId(), new DebugAccountRangeAtResult(accounts.stream().collect(Collectors.toMap(account -> account.getAddressHash().toString(), account -> account.getAddress().orElse(Address.ZERO).toString())), nextKey.toString()));
    }
}