int RedisClient::scan( VecString& values , const int& index , const string& pattern ,
const int& count )
{
BuildCommand cmd("SCAN");
string val;
SInt64 nextNo;
CResult arry;
cmd << index;
if ( !pattern.empty() )
{
LOG_DEBUG("PATTERN:%s", pattern.c_str());
cmd << "MATCH" << pattern;
}
if ( count > 0 && count != 10 )
{
LOG_DEBUG("PATTERN:%s", pattern.c_str());
cmd << "COUNT" << count;
}
if ( !_getArry(cmd, arry) )
return -1;
CResult::ListCResult arrList = arry.getArry();
if ( arrList.size() != 2 )
return -2;
CResult::ListCResult::const_iterator it = arrList.begin();
val = it->getString(); //throw TypeErr
std::istringstream istr(val);
istr >> nextNo;
if ( istr.fail() )
{
LOG_ERROR("%s: data received is unexpected",val.c_str());
}
LOG_DEBUG("nextNo:%ld", nextNo);
++it;
CResult::ListCResult::const_iterator itKeybgein = it->getArry().begin();
CResult::ListCResult::const_iterator itKeyend = it->getArry().end();
values.clear();
while ( itKeybgein != itKeyend )
{
val = itKeybgein->getString();
values.push_back(val);
itKeybgein++;
}
return nextNo;
}
bool CRedisClient::hscan(const string &key, int64_t cursor, MapString &values, const string &match, uint64_t count )
{
static uint64_t lastCur = 0;
uint64_t realCur = 0;
CResult result;
if ( cursor >= 0 )
{
realCur = cursor;
}else
{
realCur = lastCur;
}
Command cmd( "HSCAN" );
cmd << key << realCur;
if ( "" != match )
{
cmd << "MATCH" << match;
}
if ( 0 != count )
{
cmd << "COUNT" << count;
}
_getArry( cmd, result );
CResult::ListCResult::const_iterator it = result.getArry().begin();
lastCur = _valueFromString<uint64_t>( it->getString() );
++it;
_getStringMapFromArry( it->getArry(), values );
return ( lastCur == 0 ? false : true );
}
bool CRedisClient::hscan(const string &key, int64_t cursor, VecString& values,const string &match, uint64_t count )
{
static uint64_t lastCur = 0;
uint64_t realCur = 0;
CResult result;
if ( cursor >= 0 )
{
realCur = cursor;
}else
{
realCur = lastCur;
}
hscan( key, realCur, match, count, result );
ReplyType type = result.getType() ;
if ( REDIS_REPLY_ERROR == type )
{
throw ReplyErr( result.getErrorString() );
}else if ( REDIS_REPLY_ARRAY != type )
{
throw ProtocolErr( "HSCAN: data recved is not arry" );
}
CResult::ListCResult::const_iterator it = result.getArry().begin();
if ( REDIS_REPLY_STRING != it->getType() )
{
throw ProtocolErr( "HSCAN: first ele is not string" );
}
lastCur = _valueFromString<uint64_t>( it->getString() );
++it;
_getValueFromArry( it->getArry(), values );
return ( lastCur == 0 ? false : true );
}