std::string database_getval(std::string col, std::string val){
//fprintf(stderr, "in getval with %s %s", col.c_str(), val.c_str());
col=trim(col);
val=trim(val);
#ifdef VOLDEMORT_FOUND
if(DATABASE==VOLDEMORT){
//log_msg("using vold");
vold_calls++;
std::string retstd::string=voldemort_getval(col,val);
return retstd::string;
}
#endif
#ifdef REDIS_FOUND
if(DATABASE==REDIS){
redis_calls++;
std::string retstring=redis_getval(col,val);
return retstring;
}
#endif
#ifdef BDB_FOUND
if(DATABASE==BDB) {
std::string retstd::string = bdb_getval(col, val);
return retstd::string;
}
#endif
}
std::string redis_setval(std::string file_id, std::string col, std::string val) {
// generate file_id if needed
if(file_id.compare("null")==0) {
std::string file_id=redis_getval("redis_last_id","val");
//cout << "got file id " << file_id << endl;
if(file_id.compare("null")==0) {
file_id="1";
}
int redis_last_id=0;
redis_last_id=atoi(file_id.c_str());
redis_last_id++;//find non-local solution (other table?)
std::stringstream result;
result<<redis_last_id;
//cout << "removing " << file_id << endl;
redis_remove_val("redis_last_id","val",file_id);
reply = (redisReply*)redisCommand(c,"hget redis_last_id val");
if(reply->len!=0) {
std::string rep_str = reply->str;
//cout << "did it take?" << rep_str << endl;
}
freeReplyObject(reply);
//cout << "setting " << result.str() << endl;
redis_setval("redis_last_id","val",result.str());
file_id = result.str();
redis_setval(file_id,col,val);
//cout << "returning " << file_id;
return file_id;
}
// handle file_id key
reply = (redisReply*)(redisReply*)redisCommand(c,"hget %s %s",file_id.c_str(),col.c_str());
std::string output = val;
if(reply->len != 0) {
std::string rep_str = reply->str;
output = rep_str + ":" + output;
}
freeReplyObject(reply);
//output = de_dup(output);
reply = (redisReply*)redisCommand(c,"hset %s %s %s",file_id.c_str(),col.c_str(),output.c_str());
freeReplyObject(reply);
//handle col key
reply = (redisReply*)redisCommand(c,"hget %s %s",col.c_str(),val.c_str());
output = file_id;
if(reply->len != 0) {
std::string rep_str = reply->str;
output = rep_str + ":" + output;
}
freeReplyObject(reply);
//output = de_dup(output);
reply = (redisReply*)redisCommand(c,"hset %s %s %s",col.c_str(),val.c_str(),output.c_str());
freeReplyObject(reply);
return file_id;
}
void redis_remove_val(std::string fileid, std::string col, std::string val){
//cout << "in remove val" << endl;
//cout << "updating fileid" << endl;
reply = (redisReply*)redisCommand(c,"hget %s %s",fileid.c_str(),col.c_str());
if(reply->len != 0 ) {
std::string source = reply->str;
freeReplyObject(reply);
//cout << "got " << source << endl;
size_t found = source.find(val);
if(found != std::string::npos) {
source.erase(found, val.length());
//cout << "after erase " << source << endl;
}
if(source.length()>0) {
reply = (redisReply*)redisCommand(c,"hset %s %s %s",fileid.c_str(),col.c_str(),source.c_str());
freeReplyObject(reply);
} else {
reply = (redisReply*)redisCommand(c,"hdel %s %s",fileid.c_str(),col.c_str());
freeReplyObject(reply);
}
} else {
freeReplyObject(reply);
}
//remove from col entry
//cout << "updating col entry" << endl;
std::string col_entry = redis_getval(col, val);
//cout << "got " << col_entry << endl;
size_t found = col_entry.find(fileid);
if(found != std::string::npos) {
col_entry.erase(found, fileid.length());
//cout << "after erase " << col_entry << endl;
}
reply = (redisReply*)redisCommand(c,"hset %s %s %s",col.c_str(),val.c_str(), col_entry.c_str());
freeReplyObject(reply);
}
static int xmp_getxattr(const char *path, const char *name, char *value, size_t size, uint32_t param) {
#else
static int xmp_getxattr(const char *path, const char *name, char *value, size_t size) {
#endif
fprintf(stderr, "getxattr call\n %s, %s, %s\n", path, name, value);
string xpath = "xattr:";
xpath += path;
string db_val = redis_getval( xpath, name);
fprintf(stderr, "getxattr call\npath:%s\nname:%s\nvalue:%s\nsize:%lu\n\n\n\n\n", xpath.c_str(), name, db_val.c_str(), size);
if(db_val != "null") {
db_val = hex2bin(db_val);
if(value==NULL) {
errno = 0;
return db_val.length();
}
memcpy(value, db_val.c_str(), size);
size_t num = snprintf(value, size, "%s", db_val.c_str());
fprintf(stderr, "returned\nstring:%s\ncount:%lu\n\n", value, num);
errno = 0;
return size;
}
errno = ENOATTR;
return -1;
}
