//--------------------------------------------------------------------------------------
// read_likes()
//
// Reads trainUsers.json and generates containers train_u and likes
//--------------------------------------------------------------------------------------
void read_likes(char const* file_name)
{
myout << endl << clock()/CLOCKS_PER_SEC << "s\t read_likes: " << file_name << flush;
ifstream infile(file_name);
string line;
getline(infile, line, '\n');
while (!infile.eof())
{
int size = line.size();
char* buf = new char[size];
line.copy(buf, size);
char* sz = buf;
buf[size-1]=0;
bool in_test = read_json_bool(sz, "inTestSet");
int uid = read_json_str2int(sz, "uid");
train_u.push_back(uid);
if (in_test) test_u.push_back(uid);
int bid = read_json_str2int(sz, "blog");
while(bid)
{
int pid = read_json_str2int(sz, "post_id");
time_t time = read_json_time(sz, "like_dt");
likes.insert(Like(uid, bid, pid, time));
bid = read_json_str2int(sz, "blog");
}
getline(infile, line, '\n');
delete[] buf;
}
infile.close();
}
SqlBool LikeSmartWild(const SqlVal& exp, const String& text)
{
const char *s = text;
if(*s == 0)
return SqlBool::True();
if((*s == '.' && s[1] != 0 && *++s != '.') || HasNlsLetters(WString(s)))
{
SqlBool e = Like(Upper(exp), Wild(ToUpper(s)));
if(ToUpper((byte)*s) == 'C' && s[1] == 0)
e &= NotLike(Upper(exp), "CH%"); // CH patch
return e;
}
else
return LikeUpperAscii(exp, Wild(s));
}
SqlBool LikeUpperAscii(const SqlVal& a, const SqlVal& b) {
return Like(UpperAscii(a), UpperAscii(b));
}
bool StringFunctions::Like(UNUSED_ATTRIBUTE executor::ExecutorContext &ctx,
const char *t, uint32_t tlen, const char *p,
uint32_t plen) {
PELOTON_ASSERT(t != nullptr);
PELOTON_ASSERT(p != nullptr);
if (plen == 1 && *p == '%') return true;
while (tlen > 0 && plen > 0) {
if (*p == '\\') {
NextByte(p, plen);
if (plen <= 0) return false;
if (tolower(*p) != tolower(*t)) return false;
} else if (*p == '%') {
char firstpat;
NextByte(p, plen);
while (plen > 0) {
if (*p == '%')
NextByte(p, plen);
else if (*p == '_') {
if (tlen <= 0) return false;
NextByte(t, tlen);
NextByte(p, plen);
} else
break;
}
if (plen <= 0) return true;
if (*p == '\\') {
if (plen < 2) return false;
firstpat = tolower(p[1]);
} else
firstpat = tolower(*p);
while (tlen > 0) {
if (tolower(*t) == firstpat) {
int matched = Like(ctx, t, tlen, p, plen);
if (matched != false) return matched;
}
NextByte(t, tlen);
}
return false;
} else if (*p == '_') {
NextByte(t, tlen);
NextByte(p, plen);
continue;
} else if (tolower(*p) != tolower(*t)) {
return false;
}
NextByte(t, tlen);
NextByte(p, plen);
}
if (tlen > 0) return false;
while (plen > 0 && *p == '%') NextByte(p, plen);
if (plen <= 0) return true;
return false;
}
