std::map<InetSocketAddress, std::set<int32_t> > Codec11::computeNewHashes(
infinispan::hotrod::transport::Transport& transport, uint32_t /*newTopologyId*/, int16_t /*numKeyOwners*/,
uint8_t hashFunctionVersion, uint32_t /*hashSpace*/, uint32_t clusterSize) const {
uint32_t numVirtualNodes = transport.readVInt();
std::map<InetSocketAddress, std::set<int32_t> > servers2Hash;
ConsistentHash* ch;
if (hashFunctionVersion != 0) {
ch = transport.getTransportFactory().getConsistentHashFactory().newConsistentHash(hashFunctionVersion);
} else {
ch = 0;
WARN("Could not obtain a consistent hash for version %d", hashFunctionVersion);
}
for (uint32_t i = 0; i < clusterSize; i++) {
std::string host = transport.readString();
int16_t port = transport.readUnsignedShort();
// TODO: Performance improvement, since hash positions are fixed, we could
//maybe only calculate for those nodes that the client is not aware of?
int32_t baseHashCode = transport.read4ByteInt();
int32_t normalizedHashCode = getNormalizedHash(baseHashCode, ch);
cacheHashCode(servers2Hash, host, port, normalizedHashCode);
if (numVirtualNodes > 1) {
calcVirtualHashCodes(baseHashCode, numVirtualNodes, servers2Hash,
host, port, ch);
}
}
return servers2Hash;
}
std::set<std::string> GetCounterNamesOperation::executeOperation(infinispan::hotrod::transport::Transport& transport) {
TRACE("Executing GetCounterNamesOperation(flags=%u)", flags);
std::unique_ptr<HeaderParams> params(
RetryOnFailureOperation<std::set<std::string>>::writeHeader(transport, COUNTER_GET_NAMES_REQUEST));
uint8_t status = readHeaderAndValidate(transport, *params);
std::set<std::string> ret;
if (!isSuccess(status)) {
auto num = transport.readVInt();
for (uint32_t i = 0; i < num; i++) {
auto name = transport.readString();
ret.insert(name);
}
}
TRACE("Finished GetCounterNamesOperation");
return ret;
}
