int QueryRequest::internal_encode(int version, RequestCallback* callback, BufferVec* bufs) const {
int length = 0;
uint8_t flags = this->flags();
// <query> [long string] + <consistency> [short] + <flags> [byte]
size_t query_buf_size = sizeof(int32_t) + query_.size() +
sizeof(uint16_t) + sizeof(uint8_t);
size_t paging_buf_size = 0;
if (elements_count() > 0) { // <values> = <n><value_1>...<value_n>
query_buf_size += sizeof(uint16_t); // <n> [short]
flags |= CASS_QUERY_FLAG_VALUES;
}
if (page_size() > 0) {
paging_buf_size += sizeof(int32_t); // [int]
flags |= CASS_QUERY_FLAG_PAGE_SIZE;
}
if (!paging_state().empty()) {
paging_buf_size += sizeof(int32_t) + paging_state().size(); // [bytes]
flags |= CASS_QUERY_FLAG_PAGING_STATE;
}
if (serial_consistency() != 0) {
paging_buf_size += sizeof(uint16_t); // [short]
flags |= CASS_QUERY_FLAG_SERIAL_CONSISTENCY;
}
if (version >= 3 && callback->timestamp() != CASS_INT64_MIN) {
paging_buf_size += sizeof(int64_t); // [long]
flags |= CASS_QUERY_FLAG_DEFAULT_TIMESTAMP;
}
{
bufs->push_back(Buffer(query_buf_size));
length += query_buf_size;
Buffer& buf = bufs->back();
size_t pos = buf.encode_long_string(0, query_.data(), query_.size());
pos = buf.encode_uint16(pos, callback->consistency());
pos = buf.encode_byte(pos, flags);
if (has_names_for_values()) {
if (version < 3) {
LOG_ERROR("Protocol version %d does not support named values", version);
return REQUEST_ERROR_UNSUPPORTED_PROTOCOL;
}
buf.encode_uint16(pos, value_names_.size());
length += copy_buffers_with_names(version, bufs, callback->encoding_cache());
} else if (elements_count() > 0) {
buf.encode_uint16(pos, elements_count());
int32_t result = copy_buffers(version, bufs, callback);
if (result < 0) return result;
length += result;
}
}
if (paging_buf_size > 0) {
bufs->push_back(Buffer(paging_buf_size));
length += paging_buf_size;
Buffer& buf = bufs->back();
size_t pos = 0;
if (page_size() >= 0) {
pos = buf.encode_int32(pos, page_size());
}
if (!paging_state().empty()) {
pos = buf.encode_bytes(pos, paging_state().data(), paging_state().size());
}
if (serial_consistency() != 0) {
pos = buf.encode_uint16(pos, serial_consistency());
}
if (version >= 3 && callback->timestamp() != CASS_INT64_MIN) {
pos = buf.encode_int64(pos, callback->timestamp());
}
}
return length;
}
int BatchRequest::encode(int version, RequestCallback* callback, BufferVec* bufs) const {
int length = 0;
uint8_t flags = 0;
if (version == 1) {
return REQUEST_ERROR_UNSUPPORTED_PROTOCOL;
}
{
// <type> [byte] + <n> [short]
size_t buf_size = sizeof(uint8_t) + sizeof(uint16_t);
Buffer buf(buf_size);
size_t pos = buf.encode_byte(0, type_);
buf.encode_uint16(pos, statements().size());
bufs->push_back(buf);
length += buf_size;
}
for (BatchRequest::StatementList::const_iterator i = statements_.begin(),
end = statements_.end(); i != end; ++i) {
const Statement::Ptr& statement(*i);
if (statement->has_names_for_values()) {
callback->on_error(CASS_ERROR_LIB_BAD_PARAMS,
"Batches cannot contain queries with named values");
return REQUEST_ERROR_BATCH_WITH_NAMED_VALUES;
}
int32_t result = (*i)->encode_batch(version, bufs, callback);
if (result < 0) {
return result;
}
length += result;
}
{
// <consistency> [short]
size_t buf_size = sizeof(uint16_t);
if (version >= 3) {
// <flags>[<serial_consistency><timestamp>]
buf_size += sizeof(uint8_t); // [byte]
if (serial_consistency() != 0) {
buf_size += sizeof(uint16_t); // [short]
flags |= CASS_QUERY_FLAG_SERIAL_CONSISTENCY;
}
if (callback->timestamp() != CASS_INT64_MIN) {
buf_size += sizeof(int64_t); // [long]
flags |= CASS_QUERY_FLAG_DEFAULT_TIMESTAMP;
}
}
Buffer buf(buf_size);
size_t pos = buf.encode_uint16(0, callback->consistency());
if (version >= 3) {
pos = buf.encode_byte(pos, flags);
if (serial_consistency() != 0) {
pos = buf.encode_uint16(pos, serial_consistency());
}
if (callback->timestamp() != CASS_INT64_MIN) {
pos = buf.encode_int64(pos, callback->timestamp());
}
}
bufs->push_back(buf);
length += buf_size;
}
return length;
}
int ExecuteRequest::internal_encode(int version, Handler* handler, BufferVec* bufs) const {
int length = 0;
uint8_t flags = this->flags();
const std::string& prepared_id = prepared_->id();
// <id> [short bytes] + <consistency> [short] + <flags> [byte]
size_t prepared_buf_size = sizeof(uint16_t) + prepared_id.size() +
sizeof(uint16_t) + sizeof(uint8_t);
size_t paging_buf_size = 0;
if (elements_count() > 0) { // <values> = <n><value_1>...<value_n>
prepared_buf_size += sizeof(uint16_t); // <n> [short]
flags |= CASS_QUERY_FLAG_VALUES;
}
if (page_size() >= 0) {
paging_buf_size += sizeof(int32_t); // [int]
flags |= CASS_QUERY_FLAG_PAGE_SIZE;
}
if (!paging_state().empty()) {
paging_buf_size += sizeof(int32_t) + paging_state().size(); // [bytes]
flags |= CASS_QUERY_FLAG_PAGING_STATE;
}
if (serial_consistency() != 0) {
paging_buf_size += sizeof(uint16_t); // [short]
flags |= CASS_QUERY_FLAG_SERIAL_CONSISTENCY;
}
if (version >= 3 && handler->timestamp() != CASS_INT64_MIN) {
paging_buf_size += sizeof(int64_t); // [long]
flags |= CASS_QUERY_FLAG_DEFAULT_TIMESTAMP;
}
{
bufs->push_back(Buffer(prepared_buf_size));
length += prepared_buf_size;
Buffer& buf = bufs->back();
size_t pos = buf.encode_string(0,
prepared_id.data(),
prepared_id.size());
pos = buf.encode_uint16(pos, handler->consistency());
pos = buf.encode_byte(pos, flags);
if (elements_count() > 0) {
buf.encode_uint16(pos, elements_count());
int32_t result = copy_buffers(version, bufs, handler);
if (result < 0) return result;
length += result;
}
}
if (paging_buf_size > 0) {
bufs->push_back(Buffer(paging_buf_size));
length += paging_buf_size;
Buffer& buf = bufs->back();
size_t pos = 0;
if (page_size() >= 0) {
pos = buf.encode_int32(pos, page_size());
}
if (!paging_state().empty()) {
pos = buf.encode_bytes(pos, paging_state().data(), paging_state().size());
}
if (serial_consistency() != 0) {
pos = buf.encode_uint16(pos, serial_consistency());
}
if (version >= 3 && handler->timestamp() != CASS_INT64_MIN) {
pos = buf.encode_int64(pos, handler->timestamp());
}
}
return length;
}