homework-jianmu/source/client/src/clientSmlTelnet.c

242 lines
7.7 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "clientSml.h"
int32_t is_same_child_table_telnet(const void *a, const void *b) {
SSmlLineInfo *t1 = (SSmlLineInfo *)a;
SSmlLineInfo *t2 = (SSmlLineInfo *)b;
if (t1 == NULL || t2 == NULL || t1->measure == NULL || t2->measure == NULL || t1->tags == NULL || t2->tags == NULL)
return 1;
return (((t1->measureLen == t2->measureLen) && memcmp(t1->measure, t2->measure, t1->measureLen) == 0) &&
((t1->tagsLen == t2->tagsLen) && memcmp(t1->tags, t2->tags, t1->tagsLen) == 0))
? 0
: 1;
}
int64_t smlParseOpenTsdbTime(SSmlHandle *info, const char *data, int32_t len) {
uint8_t toPrecision = info->currSTableMeta ? info->currSTableMeta->tableInfo.precision : TSDB_TIME_PRECISION_NANO;
if (unlikely(!data)) {
smlBuildInvalidDataMsg(&info->msgBuf, "timestamp can not be null", NULL);
return -1;
}
if (unlikely(len == 1 && data[0] == '0')) {
return taosGetTimestampNs() / smlFactorNS[toPrecision];
}
int8_t fromPrecision = smlGetTsTypeByLen(len);
if (unlikely(fromPrecision == -1)) {
smlBuildInvalidDataMsg(&info->msgBuf,
"timestamp precision can only be seconds(10 digits) or milli seconds(13 digits)", data);
return -1;
}
int64_t ts = smlGetTimeValue(data, len, fromPrecision, toPrecision);
if (unlikely(ts == -1)) {
smlBuildInvalidDataMsg(&info->msgBuf, "invalid timestamp", data);
return -1;
}
return ts;
}
static void smlParseTelnetElement(char **sql, char *sqlEnd, char **data, int32_t *len) {
while (*sql < sqlEnd) {
if (unlikely((**sql != SPACE && !(*data)))) {
*data = *sql;
} else if (unlikely(**sql == SPACE && *data)) {
*len = *sql - *data;
break;
}
(*sql)++;
}
}
static int32_t smlProcessTagTelnet(SSmlHandle *info, char *data, char *sqlEnd){
SArray *preLineKV = info->preLineTagKV;
taosArrayClearEx(preLineKV, freeSSmlKv);
int cnt = 0;
const char *sql = data;
while (sql < sqlEnd) {
JUMP_SPACE(sql, sqlEnd)
if (unlikely(*sql == '\0' || *sql == '\n')) break;
const char *key = sql;
size_t keyLen = 0;
// parse key
while (sql < sqlEnd) {
if (unlikely(*sql == SPACE)) {
smlBuildInvalidDataMsg(&info->msgBuf, "invalid data", sql);
return TSDB_CODE_SML_INVALID_DATA;
}
if (unlikely(*sql == EQUAL)) {
keyLen = sql - key;
sql++;
break;
}
sql++;
}
if (unlikely(IS_INVALID_COL_LEN(keyLen))) {
smlBuildInvalidDataMsg(&info->msgBuf, "invalid key or key is too long than 64", key);
return TSDB_CODE_TSC_INVALID_COLUMN_LENGTH;
}
// parse value
const char *value = sql;
size_t valueLen = 0;
while (sql < sqlEnd) {
// parse value
if (unlikely(*sql == SPACE)) {
break;
}
if (unlikely(*sql == EQUAL)) {
smlBuildInvalidDataMsg(&info->msgBuf, "invalid data", sql);
return TSDB_CODE_SML_INVALID_DATA;
}
sql++;
}
valueLen = sql - value;
if (unlikely(valueLen == 0)) {
smlBuildInvalidDataMsg(&info->msgBuf, "invalid value", value);
return TSDB_CODE_TSC_INVALID_VALUE;
}
if (unlikely(valueLen > (TSDB_MAX_TAGS_LEN - VARSTR_HEADER_SIZE) / TSDB_NCHAR_SIZE)) {
return TSDB_CODE_PAR_INVALID_VAR_COLUMN_LEN;
}
SSmlKv kv = {.key = key,
.keyLen = keyLen,
.type = TSDB_DATA_TYPE_NCHAR,
.value = value,
.length = valueLen,
.keyEscaped = false,
.valueEscaped = false};
if (taosArrayPush(preLineKV, &kv) == NULL){
return terrno;
}
if (info->dataFormat && !isSmlTagAligned(info, cnt, &kv)) {
return TSDB_CODE_SML_INVALID_DATA;
}
cnt++;
}
return TSDB_CODE_SUCCESS;
}
static int32_t smlParseTelnetTags(SSmlHandle *info, char *data, char *sqlEnd, SSmlLineInfo *elements) {
if (is_same_child_table_telnet(elements, &info->preLine) == 0) {
elements->measureTag = info->preLine.measureTag;
return TSDB_CODE_SUCCESS;
}
int32_t code = 0;
int32_t lino = 0;
if(info->dataFormat){
SML_CHECK_CODE(smlProcessSuperTable(info, elements));
}
SML_CHECK_CODE(smlProcessTagTelnet(info, data, sqlEnd));
SML_CHECK_CODE(smlJoinMeasureTag(elements));
code = smlProcessChildTable(info, elements);
END:
if(info->reRun){
return TSDB_CODE_SUCCESS;
}
RETURN
}
// format: <metric> <timestamp> <value> <tagk_1>=<tagv_1>[ <tagk_n>=<tagv_n>]
int32_t smlParseTelnetString(SSmlHandle *info, char *sql, char *sqlEnd, SSmlLineInfo *elements) {
if (!sql) return TSDB_CODE_SML_INVALID_DATA;
// parse metric
smlParseTelnetElement(&sql, sqlEnd, &elements->measure, &elements->measureLen);
if (unlikely((!(elements->measure) || IS_INVALID_TABLE_LEN(elements->measureLen)))) {
smlBuildInvalidDataMsg(&info->msgBuf, "SML telnet invalid measure", sql);
return TSDB_CODE_TSC_INVALID_TABLE_ID_LENGTH;
}
// parse timestamp
smlParseTelnetElement(&sql, sqlEnd, &elements->timestamp, &elements->timestampLen);
if (unlikely(!elements->timestamp || elements->timestampLen == 0)) {
smlBuildInvalidDataMsg(&info->msgBuf, "SML telnet invalid timestamp", sql);
return TSDB_CODE_SML_INVALID_DATA;
}
bool needConverTime = false; // get TS before parse tag(get meta), so need convert time
if (info->dataFormat && info->currSTableMeta == NULL) {
needConverTime = true;
}
int64_t ts = smlParseOpenTsdbTime(info, elements->timestamp, elements->timestampLen);
if (unlikely(ts < 0)) {
smlBuildInvalidDataMsg(&info->msgBuf, "SML telnet parse timestamp failed", sql);
return TSDB_CODE_INVALID_TIMESTAMP;
}
// parse value
smlParseTelnetElement(&sql, sqlEnd, &elements->cols, &elements->colsLen);
if (unlikely(!elements->cols || elements->colsLen == 0)) {
smlBuildInvalidDataMsg(&info->msgBuf, "SML telnet invalid value", sql);
return TSDB_CODE_TSC_INVALID_VALUE;
}
SSmlKv kv = {.key = VALUE, .keyLen = VALUE_LEN, .value = elements->cols, .length = (size_t)elements->colsLen};
int ret = smlParseValue(&kv, &info->msgBuf);
if (ret != TSDB_CODE_SUCCESS) {
uError("SML:0x%" PRIx64 " %s parse value error:%d.", info->id, __FUNCTION__, ret);
return TSDB_CODE_TSC_INVALID_VALUE;
}
JUMP_SPACE(sql, sqlEnd)
elements->tags = sql;
elements->tagsLen = sqlEnd - sql;
if (unlikely(!elements->tags || elements->tagsLen == 0)) {
smlBuildInvalidDataMsg(&info->msgBuf, "SML telnet invalid tag value", sql);
return TSDB_CODE_TSC_INVALID_VALUE;
}
ret = smlParseTelnetTags(info, sql, sqlEnd, elements);
if (unlikely(ret != TSDB_CODE_SUCCESS)) {
return ret;
}
if (unlikely(info->reRun)) {
return TSDB_CODE_SUCCESS;
}
SSmlKv kvTs = {0};
smlBuildTsKv(&kvTs, ts);
if (needConverTime && info->currSTableMeta != NULL) {
kvTs.i = convertTimePrecision(kvTs.i, TSDB_TIME_PRECISION_NANO, info->currSTableMeta->tableInfo.precision);
}
if (info->dataFormat){
ret = smlParseEndTelnetJsonFormat(info, elements, &kvTs, &kv);
} else {
ret = smlParseEndTelnetJsonUnFormat(info, elements, &kvTs, &kv);
}
info->preLine = *elements;
return ret;
}