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cql_if.cc
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cql_if.cc
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//
// Copyright (c) 2015 Juniper Networks, Inc. All rights reserved.
//
#include <assert.h>
#include <tbb/atomic.h>
#include <boost/foreach.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/join.hpp>
#include <boost/unordered_map.hpp>
#include <cassandra.h>
#include <base/logging.h>
#include <base/task.h>
#include <base/timer.h>
#include <base/string_util.h>
#include <io/event_manager.h>
#include <database/gendb_if.h>
#include <database/cassandra/cql/cql_if.h>
#include <database/cassandra/cql/cql_if_impl.h>
#include <database/cassandra/cql/cql_lib_if.h>
#define CQLIF_LOG(_Level, _Msg) \
do { \
if (LoggingDisabled()) break; \
log4cplus::Logger logger = log4cplus::Logger::getRoot(); \
LOG4CPLUS_##_Level(logger, __func__ << ":" << __FILE__ << ":" << \
__LINE__ << ": " << _Msg); \
} while (false)
#define CQLIF_LOG_ERR(_Msg) \
do { \
LOG(ERROR, __func__ << ":" << __FILE__ << ":" << __LINE__ << ": " \
<< _Msg); \
} while (false)
namespace cass {
namespace cql {
namespace impl {
// CassString convenience structure
struct CassString {
CassString() :
data(NULL),
length(0) {
}
CassString(const char *data) :
data(data),
length(strlen(data)) {
}
CassString(const char* data, size_t length) :
data(data),
length(length) {
}
const char* data;
size_t length;
};
// CassUuid encode and decode
static inline void encode_uuid(char* output, const CassUuid &uuid) {
uint64_t time_and_version = uuid.time_and_version;
output[3] = static_cast<char>(time_and_version & 0x00000000000000FFLL);
time_and_version >>= 8;
output[2] = static_cast<char>(time_and_version & 0x00000000000000FFLL);
time_and_version >>= 8;
output[1] = static_cast<char>(time_and_version & 0x00000000000000FFLL);
time_and_version >>= 8;
output[0] = static_cast<char>(time_and_version & 0x00000000000000FFLL);
time_and_version >>= 8;
output[5] = static_cast<char>(time_and_version & 0x00000000000000FFLL);
time_and_version >>= 8;
output[4] = static_cast<char>(time_and_version & 0x00000000000000FFLL);
time_and_version >>= 8;
output[7] = static_cast<char>(time_and_version & 0x00000000000000FFLL);
time_and_version >>= 8;
output[6] = static_cast<char>(time_and_version & 0x000000000000000FFLL);
uint64_t clock_seq_and_node = uuid.clock_seq_and_node;
for (size_t i = 0; i < 8; ++i) {
output[15 - i] = static_cast<char>(clock_seq_and_node & 0x00000000000000FFL);
clock_seq_and_node >>= 8;
}
}
static inline char* decode_uuid(char* input, CassUuid* output) {
output->time_and_version = static_cast<uint64_t>(static_cast<uint8_t>(input[3]));
output->time_and_version |= static_cast<uint64_t>(static_cast<uint8_t>(input[2])) << 8;
output->time_and_version |= static_cast<uint64_t>(static_cast<uint8_t>(input[1])) << 16;
output->time_and_version |= static_cast<uint64_t>(static_cast<uint8_t>(input[0])) << 24;
output->time_and_version |= static_cast<uint64_t>(static_cast<uint8_t>(input[5])) << 32;
output->time_and_version |= static_cast<uint64_t>(static_cast<uint8_t>(input[4])) << 40;
output->time_and_version |= static_cast<uint64_t>(static_cast<uint8_t>(input[7])) << 48;
output->time_and_version |= static_cast<uint64_t>(static_cast<uint8_t>(input[6])) << 56;
output->clock_seq_and_node = 0;
for (size_t i = 0; i < 8; ++i) {
output->clock_seq_and_node |= static_cast<uint64_t>(static_cast<uint8_t>(input[15 - i])) << (8 * i);
}
return input + 16;
}
static const char * DbDataType2CassType(
const GenDb::DbDataType::type &db_type) {
switch (db_type) {
case GenDb::DbDataType::AsciiType:
return "ascii";
case GenDb::DbDataType::LexicalUUIDType:
return "uuid";
case GenDb::DbDataType::TimeUUIDType:
return "timeuuid";
case GenDb::DbDataType::Unsigned8Type:
case GenDb::DbDataType::Unsigned16Type:
case GenDb::DbDataType::Unsigned32Type:
return "int";
case GenDb::DbDataType::Unsigned64Type:
return "bigint";
case GenDb::DbDataType::DoubleType:
return "double";
case GenDb::DbDataType::UTF8Type:
return "text";
case GenDb::DbDataType::InetType:
return "inet";
case GenDb::DbDataType::IntegerType:
return "varint";
case GenDb::DbDataType::BlobType:
return "blob";
default:
assert(false && "Invalid data type");
return "";
}
}
static std::string DbDataTypes2CassTypes(
const GenDb::DbDataTypeVec &v_db_types) {
assert(!v_db_types.empty());
return std::string(DbDataType2CassType(v_db_types[0]));
}
static CassConsistency Db2CassConsistency(
GenDb::DbConsistency::type dconsistency) {
switch (dconsistency) {
case GenDb::DbConsistency::ANY:
return CASS_CONSISTENCY_ANY;
case GenDb::DbConsistency::ONE:
return CASS_CONSISTENCY_ONE;
case GenDb::DbConsistency::TWO:
return CASS_CONSISTENCY_TWO;
case GenDb::DbConsistency::THREE:
return CASS_CONSISTENCY_THREE;
case GenDb::DbConsistency::QUORUM:
return CASS_CONSISTENCY_QUORUM;
case GenDb::DbConsistency::ALL:
return CASS_CONSISTENCY_ALL;
case GenDb::DbConsistency::LOCAL_QUORUM:
return CASS_CONSISTENCY_LOCAL_QUORUM;
case GenDb::DbConsistency::EACH_QUORUM:
return CASS_CONSISTENCY_EACH_QUORUM;
case GenDb::DbConsistency::SERIAL:
return CASS_CONSISTENCY_SERIAL;
case GenDb::DbConsistency::LOCAL_SERIAL:
return CASS_CONSISTENCY_LOCAL_SERIAL;
case GenDb::DbConsistency::LOCAL_ONE:
return CASS_CONSISTENCY_LOCAL_ONE;
case GenDb::DbConsistency::UNKNOWN:
default:
return CASS_CONSISTENCY_UNKNOWN;
}
}
// Cass Query Printer
class CassQueryPrinter : public boost::static_visitor<> {
public:
CassQueryPrinter(std::ostream &os, bool quote_strings) :
os_(os),
quote_strings_(quote_strings) {
}
CassQueryPrinter(std::ostream &os) :
os_(os),
quote_strings_(true) {
}
template<typename T>
void operator()(const T &t) const {
os_ << t;
}
void operator()(const boost::uuids::uuid &tuuid) const {
os_ << to_string(tuuid);
}
// uint8_t must be handled specially because ostream sees
// uint8_t as a text type instead of an integer type
void operator()(const uint8_t &tu8) const {
os_ << (uint16_t)tu8;
}
void operator()(const std::string &tstring) const {
if (quote_strings_) {
os_ << "'" << tstring << "'";
} else {
os_ << tstring;
}
}
// CQL int is 32 bit signed integer
void operator()(const uint32_t &tu32) const {
os_ << (int32_t)tu32;
}
// CQL bigint is 64 bit signed long
void operator()(const uint64_t &tu64) const {
os_ << (int64_t)tu64;
}
void operator()(const IpAddress &tipaddr) const {
os_ << "'" << tipaddr << "'";
}
std::ostream &os_;
bool quote_strings_;
};
//
// CassStatement bind
//
class CassStatementIndexBinder : public boost::static_visitor<> {
public:
CassStatementIndexBinder(interface::CassLibrary *cci,
CassStatement *statement) :
cci_(cci),
statement_(statement) {
}
void operator()(const boost::blank &tblank, size_t index) const {
assert(false && "CassStatement bind to boost::blank not supported");
}
void operator()(const std::string &tstring, size_t index) const {
CassError rc(cci_->CassStatementBindStringN(statement_, index,
tstring.c_str(), tstring.length()));
assert(rc == CASS_OK);
}
void operator()(const boost::uuids::uuid &tuuid, size_t index) const {
CassUuid cuuid;
decode_uuid((char *)&tuuid, &cuuid);
CassError rc(cci_->CassStatementBindUuid(statement_, index, cuuid));
assert(rc == CASS_OK);
}
void operator()(const uint8_t &tu8, size_t index) const {
CassError rc(cci_->CassStatementBindInt32(statement_, index, tu8));
assert(rc == CASS_OK);
}
void operator()(const uint16_t &tu16, size_t index) const {
CassError rc(cci_->CassStatementBindInt32(statement_, index, tu16));
assert(rc == CASS_OK);
}
void operator()(const uint32_t &tu32, size_t index) const {
assert(tu32 <= (uint32_t)std::numeric_limits<int32_t>::max());
CassError rc(cci_->CassStatementBindInt32(statement_, index,
(cass_int32_t)tu32));
assert(rc == CASS_OK);
}
void operator()(const uint64_t &tu64, size_t index) const {
assert(tu64 <= (uint64_t)std::numeric_limits<int64_t>::max());
CassError rc(cci_->CassStatementBindInt64(statement_, index,
(cass_int64_t)tu64));
assert(rc == CASS_OK);
}
void operator()(const double &tdouble, size_t index) const {
CassError rc(cci_->CassStatementBindDouble(statement_, index,
(cass_double_t)tdouble));
assert(rc == CASS_OK);
}
void operator()(const IpAddress &tipaddr, size_t index) const {
CassInet cinet;
if (tipaddr.is_v4()) {
boost::asio::ip::address_v4 tv4(tipaddr.to_v4());
cinet = cci_->CassInetInitV4(tv4.to_bytes().c_array());
} else {
boost::asio::ip::address_v6 tv6(tipaddr.to_v6());
cinet = cci_->CassInetInitV6(tv6.to_bytes().c_array());
}
CassError rc(cci_->CassStatementBindInet(statement_, index,
cinet));
assert(rc == CASS_OK);
}
void operator()(const GenDb::Blob &tblob, size_t index) const {
CassError rc(cci_->CassStatementBindBytes(statement_, index,
tblob.data(), tblob.size()));
assert(rc == CASS_OK);
}
interface::CassLibrary *cci_;
CassStatement *statement_;
};
class CassStatementNameBinder : public boost::static_visitor<> {
public:
CassStatementNameBinder(interface::CassLibrary *cci,
CassStatement *statement) :
cci_(cci),
statement_(statement) {
}
void operator()(const boost::blank &tblank, const char *name) const {
assert(false && "CassStatement bind to boost::blank not supported");
}
void operator()(const std::string &tstring, const char *name) const {
CassError rc(cci_->CassStatementBindStringByNameN(statement_, name,
strlen(name), tstring.c_str(), tstring.length()));
assert(rc == CASS_OK);
}
void operator()(const boost::uuids::uuid &tuuid, const char *name) const {
CassUuid cuuid;
decode_uuid((char *)&tuuid, &cuuid);
CassError rc(cci_->CassStatementBindUuidByName(statement_, name,
cuuid));
assert(rc == CASS_OK);
}
void operator()(const uint8_t &tu8, const char *name) const {
CassError rc(cci_->CassStatementBindInt32ByName(statement_, name,
tu8));
assert(rc == CASS_OK);
}
void operator()(const uint16_t &tu16, const char *name) const {
CassError rc(cci_->CassStatementBindInt32ByName(statement_, name,
tu16));
assert(rc == CASS_OK);
}
void operator()(const uint32_t &tu32, const char *name) const {
assert(tu32 <= (uint32_t)std::numeric_limits<int32_t>::max());
CassError rc(cci_->CassStatementBindInt32ByName(statement_, name,
(cass_int32_t)tu32));
assert(rc == CASS_OK);
}
void operator()(const uint64_t &tu64, const char *name) const {
assert(tu64 <= (uint64_t)std::numeric_limits<int64_t>::max());
CassError rc(cci_->CassStatementBindInt64ByName(statement_, name,
(cass_int64_t)tu64));
assert(rc == CASS_OK);
}
void operator()(const double &tdouble, const char *name) const {
CassError rc(cci_->CassStatementBindDoubleByName(statement_, name,
(cass_double_t)tdouble));
assert(rc == CASS_OK);
}
void operator()(const IpAddress &tipaddr, const char *name) const {
CassInet cinet;
if (tipaddr.is_v4()) {
boost::asio::ip::address_v4 tv4(tipaddr.to_v4());
cinet = cci_->CassInetInitV4(tv4.to_bytes().c_array());
} else {
boost::asio::ip::address_v6 tv6(tipaddr.to_v6());
cinet = cci_->CassInetInitV6(tv6.to_bytes().c_array());
}
CassError rc(cci_->CassStatementBindInetByName(statement_, name,
cinet));
assert(rc == CASS_OK);
}
void operator()(const GenDb::Blob &tblob, const char *name) const {
CassError rc(cci_->CassStatementBindBytesByNameN(statement_, name,
strlen(name), tblob.data(), tblob.size()));
assert(rc == CASS_OK);
}
interface::CassLibrary *cci_;
CassStatement *statement_;
};
static const char * kQCompactionStrategy(
"compaction = {'class': "
"'org.apache.cassandra.db.compaction.%s'}");
static const std::string kQGCGraceSeconds("gc_grace_seconds = 0");
//
// Cf2CassCreateTableIfNotExists
//
std::string StaticCf2CassCreateTableIfNotExists(const GenDb::NewCf &cf,
const std::string &compaction_strategy) {
std::ostringstream query;
// Table name
query << "CREATE TABLE IF NOT EXISTS " << cf.cfname_ << " ";
// Row key
const GenDb::DbDataTypeVec &rkeys(cf.key_validation_class);
assert(rkeys.size() == 1);
query << "(key " << DbDataType2CassType(rkeys[0]) <<
" PRIMARY KEY";
// Columns
const GenDb::NewCf::SqlColumnMap &columns(cf.cfcolumns_);
assert(!columns.empty());
BOOST_FOREACH(const GenDb::NewCf::SqlColumnMap::value_type &column,
columns) {
query << ", \"" << column.first << "\" " <<
DbDataType2CassType(column.second);
}
char cbuf[512];
int n(snprintf(cbuf, sizeof(cbuf), kQCompactionStrategy,
compaction_strategy.c_str()));
assert(!(n < 0 || n >= (int)sizeof(cbuf)));
query << ") WITH " << std::string(cbuf) << " AND " <<
kQGCGraceSeconds;
return query.str();
}
std::string DynamicCf2CassCreateTableIfNotExists(const GenDb::NewCf &cf,
const std::string &compaction_strategy) {
std::ostringstream query;
// Table name
query << "CREATE TABLE IF NOT EXISTS " << cf.cfname_ << " (";
// Row key
const GenDb::DbDataTypeVec &rkeys(cf.key_validation_class);
int rk_size(rkeys.size());
for (int i = 0; i < rk_size; i++) {
if (i) {
int key_num(i + 1);
query << "key" << key_num;
} else {
query << "key";
}
query << " " << DbDataType2CassType(rkeys[i]) << ", ";
}
// Column name
const GenDb::DbDataTypeVec &cnames(cf.comparator_type);
int cn_size(cnames.size());
for (int i = 0; i < cn_size; i++) {
int cnum(i + 1);
query << "column" << cnum << " " <<
DbDataType2CassType(cnames[i]) << ", ";
}
// Value
const GenDb::DbDataTypeVec &values(cf.default_validation_class);
if (values.size() > 0) {
query << "value" << " " << DbDataTypes2CassTypes(values) << ", ";
}
// Primarry Key
query << "PRIMARY KEY (";
std::ostringstream rkey_ss;
for (int i = 0; i < rk_size; i++) {
if (i) {
int key_num(i + 1);
rkey_ss << ", key" << key_num;
} else {
rkey_ss << "key";
}
}
if (rk_size >= 2) {
query << "(" << rkey_ss.str() << "), ";
} else {
query << rkey_ss.str() << ", ";
}
for (int i = 0; i < cn_size; i++) {
int cnum(i + 1);
if (i) {
query << ", ";
}
query << "column" << cnum;
}
char cbuf[512];
int n(snprintf(cbuf, sizeof(cbuf), kQCompactionStrategy,
compaction_strategy.c_str()));
assert(!(n < 0 || n >= (int)sizeof(cbuf)));
query << ")) WITH " << std::string(cbuf) << " AND " <<
kQGCGraceSeconds;
return query.str();
}
//
// Cf2CassInsertIntoTable
//
std::string StaticCf2CassInsertIntoTable(const GenDb::ColList *v_columns) {
std::ostringstream query;
// Table
const std::string &table(v_columns->cfname_);
query << "INSERT INTO " << table << " (";
std::ostringstream values_ss;
values_ss << "VALUES (";
CassQueryPrinter values_printer(values_ss);
// Row keys
const GenDb::DbDataValueVec &rkeys(v_columns->rowkey_);
int rk_size(rkeys.size());
for (int i = 0; i < rk_size; i++) {
if (i) {
int key_num(i + 1);
query << ", key" << key_num;
} else {
query << "key";
}
if (i) {
values_ss << ", ";
}
boost::apply_visitor(values_printer, rkeys[i]);
}
// Columns
int cttl(-1);
CassQueryPrinter cnames_printer(query, false);
BOOST_FOREACH(const GenDb::NewCol &column, v_columns->columns_) {
assert(column.cftype_ == GenDb::NewCf::COLUMN_FAMILY_SQL);
// Column Name
query << ", ";
const GenDb::DbDataValueVec &cnames(*column.name.get());
assert(cnames.size() == 1);
// Double quote column name strings
query << "\"";
boost::apply_visitor(cnames_printer, cnames[0]);
query << "\"";
// Column Values
values_ss << ", ";
const GenDb::DbDataValueVec &cvalues(*column.value.get());
assert(cvalues.size() == 1);
boost::apply_visitor(values_printer, cvalues[0]);
// Column TTL
cttl = column.ttl;
}
query << ") ";
values_ss << ")";
query << values_ss.str();
if (cttl > 0) {
query << " USING TTL " << cttl;
}
return query.str();
}
std::string DynamicCf2CassInsertIntoTable(const GenDb::ColList *v_columns) {
std::ostringstream query;
// Table
const std::string &table(v_columns->cfname_);
query << "INSERT INTO " << table << " (";
std::ostringstream values_ss;
// Row keys
const GenDb::DbDataValueVec &rkeys(v_columns->rowkey_);
int rk_size(rkeys.size());
CassQueryPrinter values_printer(values_ss);
for (int i = 0; i < rk_size; i++) {
if (i) {
int key_num(i + 1);
query << ", key" << key_num;
} else {
query << "key";
}
boost::apply_visitor(values_printer, rkeys[i]);
values_ss << ", ";
}
// Columns
const GenDb::NewColVec &columns(v_columns->columns_);
assert(columns.size() == 1);
const GenDb::NewCol &column(columns[0]);
assert(column.cftype_ == GenDb::NewCf::COLUMN_FAMILY_NOSQL);
// Column Names
const GenDb::DbDataValueVec &cnames(*column.name.get());
int cn_size(cnames.size());
for (int i = 0; i < cn_size; i++) {
int cnum(i + 1);
query << ", column" << cnum;
boost::apply_visitor(values_printer, cnames[i]);
if (i != cn_size - 1) {
values_ss << ", ";
}
}
// Column Values
const GenDb::DbDataValueVec &cvalues(*column.value.get());
if (cvalues.size() > 0) {
query << ", value) VALUES (";
values_ss << ", ";
boost::apply_visitor(values_printer, cvalues[0]);
} else {
query << ") VALUES (";
}
values_ss << ")";
query << values_ss.str();
if (column.ttl > 0) {
query << " USING TTL " << column.ttl;
}
return query.str();
}
//
// Cf2CassPrepareInsertIntoTable
//
std::string StaticCf2CassPrepareInsertIntoTable(const GenDb::NewCf &cf) {
std::ostringstream query;
// Table name
query << "INSERT INTO " << cf.cfname_ << " ";
// Row key
const GenDb::DbDataTypeVec &rkeys(cf.key_validation_class);
assert(rkeys.size() == 1);
std::ostringstream values_ss;
query << "(key";
values_ss << ") VALUES (?";
// Columns
const GenDb::NewCf::SqlColumnMap &columns(cf.cfcolumns_);
assert(!columns.empty());
BOOST_FOREACH(const GenDb::NewCf::SqlColumnMap::value_type &column,
columns) {
query << ", \"" << column.first << "\"";
values_ss << ", ?";
}
query << values_ss.str();
query << ") USING TTL ?";
return query.str();
}
std::string DynamicCf2CassPrepareInsertIntoTable(const GenDb::NewCf &cf) {
std::ostringstream query;
// Table name
query << "INSERT INTO " << cf.cfname_ << " (";
// Row key
const GenDb::DbDataTypeVec &rkeys(cf.key_validation_class);
int rk_size(rkeys.size());
std::ostringstream values_ss;
for (int i = 0; i < rk_size; i++) {
if (i) {
int key_num(i + 1);
query << "key" << key_num;
} else {
query << "key";
}
query << ", ";
values_ss << "?, ";
}
// Column name
const GenDb::DbDataTypeVec &cnames(cf.comparator_type);
int cn_size(cnames.size());
for (int i = 0; i < cn_size; i++) {
int cnum(i + 1);
query << "column" << cnum;
values_ss << "?";
if (i != cn_size - 1) {
query << ", ";
values_ss << ", ";
}
}
// Value
const GenDb::DbDataTypeVec &values(cf.default_validation_class);
if (values.size() > 0) {
query << ", value";
values_ss << ", ?";
}
query << ") VALUES (";
values_ss << ")";
query << values_ss.str();
query << " USING TTL ?";
return query.str();
}
//
// Cf2CassPrepareBind
//
bool StaticCf2CassPrepareBind(interface::CassLibrary *cci,
CassStatement *statement,
const GenDb::ColList *v_columns) {
CassStatementNameBinder values_binder(cci, statement);
// Row keys
const GenDb::DbDataValueVec &rkeys(v_columns->rowkey_);
int rk_size(rkeys.size());
size_t idx(0);
for (; (int) idx < rk_size; idx++) {
std::string rk_name;
if (idx) {
int key_num(idx + 1);
rk_name = "key" + integerToString(key_num);
} else {
rk_name = "key";
}
boost::apply_visitor(boost::bind(values_binder, _1, rk_name.c_str()),
rkeys[idx]);
}
// Columns
int cttl(-1);
BOOST_FOREACH(const GenDb::NewCol &column, v_columns->columns_) {
assert(column.cftype_ == GenDb::NewCf::COLUMN_FAMILY_SQL);
const GenDb::DbDataValueVec &cnames(*column.name.get());
assert(cnames.size() == 1);
assert(cnames[0].which() == GenDb::DB_VALUE_STRING);
std::string cname(boost::get<std::string>(cnames[0]));
const GenDb::DbDataValueVec &cvalues(*column.value.get());
assert(cvalues.size() == 1);
boost::apply_visitor(boost::bind(values_binder, _1, cname.c_str()),
cvalues[0]);
// Column TTL
cttl = column.ttl;
idx++;
}
CassError rc(cci->CassStatementBindInt32(statement, idx++,
(cass_int32_t)cttl));
assert(rc == CASS_OK);
return true;
}
bool DynamicCf2CassPrepareBind(interface::CassLibrary *cci,
CassStatement *statement,
const GenDb::ColList *v_columns) {
CassStatementIndexBinder values_binder(cci, statement);
// Row keys
const GenDb::DbDataValueVec &rkeys(v_columns->rowkey_);
int rk_size(rkeys.size());
size_t idx(0);
for (; (int) idx < rk_size; idx++) {
boost::apply_visitor(boost::bind(values_binder, _1, idx), rkeys[idx]);
}
// Columns
const GenDb::NewColVec &columns(v_columns->columns_);
assert(columns.size() == 1);
const GenDb::NewCol &column(columns[0]);
assert(column.cftype_ == GenDb::NewCf::COLUMN_FAMILY_NOSQL);
// Column Names
const GenDb::DbDataValueVec &cnames(*column.name.get());
int cn_size(cnames.size());
for (int i = 0; i < cn_size; i++, idx++) {
boost::apply_visitor(boost::bind(values_binder, _1, idx), cnames[i]);
}
// Column Values
const GenDb::DbDataValueVec &cvalues(*column.value.get());
if (cvalues.size() > 0) {
boost::apply_visitor(boost::bind(values_binder, _1, idx++),
cvalues[0]);
}
CassError rc(cci->CassStatementBindInt32(statement, idx++,
(cass_int32_t)column.ttl));
assert(rc == CASS_OK);
return true;
}
static std::string CassSelectFromTableInternal(const std::string &table,
const GenDb::DbDataValueVec &rkeys,
const GenDb::ColumnNameRange &ck_range) {
std::ostringstream query;
// Table
query << "SELECT * FROM " << table;
int rk_size(rkeys.size());
CassQueryPrinter cprinter(query);
for (int i = 0; i < rk_size; i++) {
if (i) {
int key_num(i + 1);
query << " AND key" << key_num << "=";
} else {
query << " WHERE key=";
}
boost::apply_visitor(cprinter, rkeys[i]);
}
if (!ck_range.IsEmpty()) {
if (!ck_range.start_.empty()) {
int ck_start_size(ck_range.start_.size());
std::ostringstream start_ss;
start_ss << " >= (";
CassQueryPrinter start_vprinter(start_ss);
query << " AND (";
for (int i = 0; i < ck_start_size; i++) {
if (i) {
query << ", ";
start_ss << ", ";
}
int cnum(i + 1);
query << "column" << cnum;
boost::apply_visitor(start_vprinter, ck_range.start_[i]);
}
query << ")";
start_ss << ")";
query << start_ss.str();
}
if (!ck_range.finish_.empty()) {
int ck_finish_size(ck_range.finish_.size());
std::ostringstream finish_ss;
finish_ss << " <= (";
CassQueryPrinter finish_vprinter(finish_ss);
query << " AND (";
for (int i = 0; i < ck_finish_size; i++) {
if (i) {
query << ", ";
finish_ss << ", ";
}
int cnum(i + 1);
query << "column" << cnum;
boost::apply_visitor(finish_vprinter, ck_range.finish_[i]);
}
query << ")";
finish_ss << ")";
query << finish_ss.str();
}
if (ck_range.count_) {
query << " LIMIT " << ck_range.count_;
}
}
return query.str();
}
std::string PartitionKey2CassSelectFromTable(const std::string &table,
const GenDb::DbDataValueVec &rkeys) {
return CassSelectFromTableInternal(table, rkeys, GenDb::ColumnNameRange());
}
std::string PartitionKeyAndClusteringKeyRange2CassSelectFromTable(
const std::string &table, const GenDb::DbDataValueVec &rkeys,
const GenDb::ColumnNameRange &ck_range) {
return CassSelectFromTableInternal(table, rkeys, ck_range);
}
std::string CassSelectFromTable(const std::string &table) {
return CassSelectFromTableInternal(table, GenDb::DbDataValueVec(),
GenDb::ColumnNameRange());
}
static GenDb::DbDataValue CassValue2DbDataValue(
interface::CassLibrary *cci, const CassValue *cvalue) {
CassValueType cvtype(cci->GetCassValueType(cvalue));
switch (cvtype) {
case CASS_VALUE_TYPE_ASCII:
case CASS_VALUE_TYPE_VARCHAR:
case CASS_VALUE_TYPE_TEXT: {
CassString ctstring;
CassError rc(cci->CassValueGetString(cvalue, &ctstring.data,
&ctstring.length));
assert(rc == CASS_OK);
return std::string(ctstring.data, ctstring.length);
}
case CASS_VALUE_TYPE_UUID: {
CassUuid ctuuid;
CassError rc(cci->CassValueGetUuid(cvalue, &ctuuid));
assert(rc == CASS_OK);
boost::uuids::uuid u;
encode_uuid((char *)&u, ctuuid);
return u;
}
case CASS_VALUE_TYPE_DOUBLE: {
cass_double_t ctdouble;
CassError rc(cci->CassValueGetDouble(cvalue, &ctdouble));
assert(rc == CASS_OK);
return (double)ctdouble;
}
case CASS_VALUE_TYPE_TINY_INT: {
cass_int8_t ct8;
CassError rc(cci->CassValueGetInt8(cvalue, &ct8));
assert(rc == CASS_OK);
return (uint8_t)ct8;
}
case CASS_VALUE_TYPE_SMALL_INT: {
cass_int16_t ct16;
CassError rc(cci->CassValueGetInt16(cvalue, &ct16));
assert(rc == CASS_OK);
return (uint16_t)ct16;
}
case CASS_VALUE_TYPE_INT: {
cass_int32_t ct32;
CassError rc(cci->CassValueGetInt32(cvalue, &ct32));
assert(rc == CASS_OK);
return (uint32_t)ct32;
}
case CASS_VALUE_TYPE_BIGINT: {
cass_int64_t ct64;
CassError rc(cci->CassValueGetInt64(cvalue, &ct64));
assert(rc == CASS_OK);
return (uint64_t)ct64;
}
case CASS_VALUE_TYPE_INET: {
CassInet ctinet;
CassError rc(cci->CassValueGetInet(cvalue, &ctinet));
assert(rc == CASS_OK);
IpAddress ipaddr;
if (ctinet.address_length == CASS_INET_V4_LENGTH) {
Ip4Address::bytes_type ipv4;
memcpy(ipv4.c_array(), ctinet.address, CASS_INET_V4_LENGTH);
ipaddr = Ip4Address(ipv4);
} else if (ctinet.address_length == CASS_INET_V6_LENGTH) {
Ip6Address::bytes_type ipv6;
memcpy(ipv6.c_array(), ctinet.address, CASS_INET_V6_LENGTH);
ipaddr = Ip6Address(ipv6);
} else {
assert(0);
}
return ipaddr;
}
case CASS_VALUE_TYPE_BLOB: {
const cass_byte_t *bytes(NULL);
size_t size(0);
CassError rc(cci->CassValueGetBytes(cvalue, &bytes, &size));
assert(rc == CASS_OK);
return GenDb::Blob(bytes, size);
}
case CASS_VALUE_TYPE_UNKNOWN: {
// null type
return GenDb::DbDataValue();
}
default: {
CQLIF_LOG_ERR("Unhandled CassValueType: " << cvtype);
assert(false && "Unhandled value type");
return GenDb::DbDataValue();
}
}
}
static bool PrepareSync(interface::CassLibrary *cci,
CassSession *session, const char* query,
CassPreparedPtr *prepared) {
CQLIF_LOG(DEBUG, "PrepareSync: " << query);
CassFuturePtr future(cci->CassSessionPrepare(session, query), cci);
cci->CassFutureWait(future.get());
CassError rc(cci->CassFutureErrorCode(future.get()));
if (rc != CASS_OK) {
CassString err;
cci->CassFutureErrorMessage(future.get(), &err.data, &err.length);
CQLIF_LOG_ERR("PrepareSync: " << query << " FAILED: " << err.data);
} else {
*prepared = CassPreparedPtr(cci->CassFutureGetPrepared(future.get()),
cci);
}
return rc == CASS_OK;
}
static bool ExecuteQuerySyncInternal(interface::CassLibrary *cci,
CassSession *session,
CassStatement *qstatement, CassResultPtr *result,
CassConsistency consistency) {
cci->CassStatementSetConsistency(qstatement, consistency);
CassFuturePtr future(cci->CassSessionExecute(session, qstatement), cci);
cci->CassFutureWait(future.get());
CassError rc(cci->CassFutureErrorCode(future.get()));
if (rc != CASS_OK) {
CassString err;
cci->CassFutureErrorMessage(future.get(), &err.data, &err.length);
CQLIF_LOG_ERR("SyncQuery: FAILED: " << err.data);
} else {
if (result) {
*result = CassResultPtr(cci->CassFutureGetResult(future.get()),
cci);
}
}
return rc == CASS_OK;
}
static bool ExecuteQuerySync(interface::CassLibrary *cci,
CassSession *session, const char *query, CassConsistency consistency) {
CQLIF_LOG(DEBUG, "SyncQuery: " << query);
CassStatementPtr statement(cci->CassStatementNew(query, 0), cci);
return ExecuteQuerySyncInternal(cci, session, statement.get(), NULL,
consistency);
}
static bool ExecuteQueryResultSync(interface::CassLibrary *cci,
CassSession *session, const char *query,
CassResultPtr *result, CassConsistency consistency) {
CQLIF_LOG(DEBUG, "SyncQuery: " << query);
CassStatementPtr statement(cci->CassStatementNew(query, 0), cci);
return ExecuteQuerySyncInternal(cci, session, statement.get(), result,
consistency);
}
static bool ExecuteQueryStatementSync(interface::CassLibrary *cci,
CassSession *session, CassStatement *statement,
CassConsistency consistency) {
return ExecuteQuerySyncInternal(cci, session, statement, NULL,
consistency);
}
static GenDb::DbOpResult::type CassError2DbOpResult(CassError rc) {
switch (rc) {
case CASS_OK:
return GenDb::DbOpResult::OK;
case CASS_ERROR_LIB_NO_HOSTS_AVAILABLE:
case CASS_ERROR_LIB_REQUEST_QUEUE_FULL:
case CASS_ERROR_LIB_NO_AVAILABLE_IO_THREAD:
return GenDb::DbOpResult::BACK_PRESSURE;
default:
return GenDb::DbOpResult::ERROR;
}
}
static void DynamicCfGetResult(interface::CassLibrary *cci,
CassResultPtr *result, size_t rk_count,
size_t ck_count, GenDb::NewColVec *v_columns) {
// Row iterator
CassIteratorPtr riterator(cci->CassIteratorFromResult(result->get()), cci);
while (cci->CassIteratorNext(riterator.get())) {
const CassRow *row(cci->CassIteratorGetRow(riterator.get()));
// Iterate over columns
size_t ccount(cci->CassResultColumnCount(result->get()));
// Clustering key
GenDb::DbDataValueVec *cnames(new GenDb::DbDataValueVec);
for (size_t i = rk_count; i < rk_count + ck_count; i++) {
const CassValue *cvalue(cci->CassRowGetColumn(row, i));
assert(cvalue);
GenDb::DbDataValue db_value(CassValue2DbDataValue(cci, cvalue));
cnames->push_back(db_value);
}
// Values
GenDb::DbDataValueVec *values(new GenDb::DbDataValueVec);
for (size_t i = rk_count + ck_count; i < ccount; i++) {
const CassValue *cvalue(cci->CassRowGetColumn(row, i));
assert(cvalue);
GenDb::DbDataValue db_value(CassValue2DbDataValue(cci, cvalue));
values->push_back(db_value);
}
GenDb::NewCol *column(new GenDb::NewCol(cnames, values, 0));
v_columns->push_back(column);
}
}
void DynamicCfGetResult(interface::CassLibrary *cci,
CassResultPtr *result, size_t rk_count,
size_t ck_count, GenDb::ColListVec *v_col_list) {