void Ardb::PrintDB(const DBID& db)
{
Slice empty;
KeyObject start(empty, KV, db);
Iterator* iter = FindValue(start);
while (NULL != iter && iter->Valid())
{
Slice tmpkey = iter->Key();
KeyObject* kk = decode_key(tmpkey, NULL);
if (kk->db != db)
{
DELETE(kk);
break;
}
ValueObject v;
Buffer readbuf(const_cast<char*>(iter->Value().data()), 0, iter->Value().size());
decode_value(readbuf, v, false);
if (NULL != kk)
{
std::string str;
DEBUG_LOG("[%d]Key=%s, Value=%s", kk->type, kk->key.data(), v.ToString(str).c_str());
}
DELETE(kk);
iter->Next();
}
DELETE(iter);
}
int Ardb::GetValueByPattern(const DBID& db, const Slice& pattern,
ValueObject& subst, ValueObject& value)
{
const char *p, *f;
const char* spat;
/* If the pattern is "#" return the substitution object itself in order
* to implement the "SORT ... GET #" feature. */
spat = pattern.data();
if (spat[0] == '#' && spat[1] == '\0')
{
value = subst;
return 0;
}
/* If we can't find '*' in the pattern we return NULL as to GET a
* fixed key does not make sense. */
p = strchr(spat, '*');
if (!p)
{
return -1;
}
f = strstr(spat, "->");
if (NULL != f && (uint32)(f - spat) == (pattern.size() - 2))
{
f = NULL;
}
std::string vstr;
subst.ToString(vstr);
std::string keystr(pattern.data(), pattern.size());
string_replace(keystr, "*", vstr);
if (f == NULL)
{
KeyObject k(keystr, KV, db);
return GetValue(k, &value);
}
else
{
size_t pos = keystr.find("->");
std::string field = keystr.substr(pos + 2);
keystr = keystr.substr(0, pos);
HashKeyObject hk(keystr, field, db);
return GetValue(hk, &value);
}
}