@Override
public APIBlockIdList getBlockIds(BID blockId, int count) throws BCSAPIException {
try (ConnectorSession session = connection.createSession()) {
log.trace("get " + count + " block ids from " + blockId);
ConnectorProducer blockIdsRequestProducer =
session.createProducer(session.createQueue("blockIdsRequest"));
ConnectorMessage m = session.createMessage();
BCSAPIMessage.BLKIDSREQ.Builder builder = BCSAPIMessage.BLKIDSREQ.newBuilder();
if (blockId != null) {
builder.setBlockHash(ByteString.copyFrom(blockId.unsafeGetArray()));
}
if (count <= 0) count = 20;
builder.setCount(count);
m.setPayload(builder.build().toByteArray());
byte[] response = synchronousRequest(session, blockIdsRequestProducer, m);
if (response != null) {
BCSAPIMessage.BLKIDS message = BCSAPIMessage.BLKIDS.parseFrom(response);
List<ByteString> blockIdsList = message.getBlockIdsList();
List<BID> blockIds =
blockIdsList.stream().map(bs -> new BID(bs.toByteArray())).collect(Collectors.toList());
return new APIBlockIdList(
blockIds,
message.getHeight(),
message.hasPreviousBlockId()
? new BID(message.getPreviousBlockId().toByteArray())
: null);
}
} catch (ConnectorException | InvalidProtocolBufferException e) {
throw new BCSAPIException(e);
}
return null;
}
@Override
public void catchUp(List<BID> inventory, int limit, boolean headers, final TrunkListener listener)
throws BCSAPIException {
log.trace("catchUp");
ConnectorMessage m;
try (ConnectorSession session = connection.createSession()) {
ConnectorProducer transactionRequestProducer =
session.createProducer(session.createQueue("catchUpRequest"));
m = session.createMessage();
BCSAPIMessage.CatchUpRequest.Builder builder = BCSAPIMessage.CatchUpRequest.newBuilder();
builder.setLimit(limit);
builder.setHeaders(true);
for (BID hash : inventory) {
builder.addInventory(ByteString.copyFrom(hash.unsafeGetArray()));
}
m.setPayload(builder.build().toByteArray());
byte[] response = synchronousRequest(session, transactionRequestProducer, m);
if (response != null) {
BCSAPIMessage.TrunkUpdate blockMessage = BCSAPIMessage.TrunkUpdate.parseFrom(response);
List<APIBlock> blockList = new ArrayList<>();
for (BCSAPIMessage.BLK b : blockMessage.getAddedList()) {
blockList.add(APIBlock.fromProtobuf(b));
}
listener.trunkUpdate(blockList);
}
} catch (ConnectorException | HyperLedgerException | InvalidProtocolBufferException e) {
throw new BCSAPIException(e);
}
}
@Override
public APIHeader getBlockHeader(BID hash) throws BCSAPIException {
try (ConnectorSession session = connection.createSession()) {
log.trace("get block header" + hash);
ConnectorProducer blockHeaderRequestProducer =
session.createProducer(session.createQueue("headerRequest"));
ConnectorMessage m = session.createMessage();
BCSAPIMessage.Hash.Builder builder = BCSAPIMessage.Hash.newBuilder();
builder.addHash(ByteString.copyFrom(hash.unsafeGetArray()));
m.setPayload(builder.build().toByteArray());
byte[] response = synchronousRequest(session, blockHeaderRequestProducer, m);
if (response != null) {
return APIHeader.fromProtobuf(BCSAPIMessage.BLK.parseFrom(response));
}
} catch (ConnectorException | InvalidProtocolBufferException e) {
throw new BCSAPIException(e);
}
return null;
}