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add dag serialize and deserialize

This commit is contained in:
Liu Jicong 2021-12-27 20:45:30 +08:00
parent 073f6b5e39
commit a53d1d95fb
2 changed files with 57 additions and 1 deletions
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8
include/libs/planner/planner.h
View File

@ -21,6 +21,7 @@ extern "C" {
#endif
#include "tmsg.h"
#include "tarray.h"
#define QUERY_TYPE_MERGE 1
#define QUERY_TYPE_PARTIAL 2
@ -158,6 +159,8 @@ int32_t qStringToSubplan(const char* str, SSubplan** subplan);
void qDestroySubplan(SSubplan* pSubplan);
char* qDagSerialize(const SQueryDag* pDag);
/**
* Destroy the physical plan.
* @param pQueryPhyNode
@ -165,8 +168,11 @@ void qDestroySubplan(SSubplan* pSubplan);
*/
void qDestroyQueryDag(SQueryDag* pDag);
char* qDagToString(const SQueryDag* pDag);
SQueryDag* qStringToDag(const char* pStr);
#ifdef __cplusplus
}
#endif
#endif /*_TD_PLANNER_H_*/
#endif /*_TD_PLANNER_H_*/

50
source/libs/planner/src/physicalPlanJson.c
View File

@ -857,3 +857,53 @@ int32_t stringToSubplan(const char* str, SSubplan** subplan) {
*subplan = subplanFromJson(json);
return (NULL == *subplan ? TSDB_CODE_FAILED : TSDB_CODE_SUCCESS);
}
cJSON* qDagToJson(const SQueryDag* pDag) {
cJSON* pRoot = cJSON_CreateObject();
cJSON_AddNumberToObject(pRoot, "numOfSubplans", pDag->numOfSubplans);
cJSON_AddNumberToObject(pRoot, "queryId", pDag->queryId);
cJSON *pLevels = cJSON_CreateArray();
cJSON_AddItemToObject(pRoot, "pSubplans", pLevels);
size_t level = taosArrayGetSize(pDag->pSubplans);
for(size_t i = 0; i < level; i++) {
const SArray* pSubplans = (const SArray*)taosArrayGetP(pDag->pSubplans, i);
size_t num = taosArrayGetSize(pSubplans);
cJSON* plansOneLevel = cJSON_CreateArray();
cJSON_AddItemToArray(pLevels, plansOneLevel);
for(size_t j = 0; j < num; j++) {
cJSON* pSubplan = subplanToJson((const SSubplan*)taosArrayGetP(pSubplans, j));
cJSON_AddItemToArray(plansOneLevel, pSubplan);
}
}
return pRoot;
}
char* qDagToString(const SQueryDag* pDag) {
cJSON* pRoot = qDagToJson(pDag);
return cJSON_Print(pRoot);
}
SQueryDag* qJsonToDag(const cJSON* pRoot) {
SQueryDag* pDag = malloc(sizeof(SQueryDag));
if(pDag == NULL) {
return NULL;
}
pDag->numOfSubplans = cJSON_GetNumberValue(cJSON_GetObjectItem(pRoot, "numOfSubplans"));
pDag->pSubplans = taosArrayInit(0, sizeof(SArray));
cJSON* pLevels = cJSON_GetObjectItem(pRoot, "numOfSubplans");
int level = cJSON_GetArraySize(pLevels);
for(int i = 0; i < level; i++) {
cJSON* pItem = cJSON_GetArrayItem(pLevels, i);
int sz = cJSON_GetArraySize(pItem);
for(int j = 0; j < sz; j++) {
cJSON* pSubplanJson = cJSON_GetArrayItem(pItem, j);
SSubplan* pSubplan = subplanFromJson(pSubplanJson);
}
}
return NULL;
}
SQueryDag* qStringToDag(const char* pStr) {
cJSON* pRoot = cJSON_Parse(pStr);
return qJsonToDag(pRoot);
}