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Copy pathSessionExample.cpp
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308 lines (260 loc) · 9.29 KB
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#include "Session.h"
using namespace std;
Session *session;
void createTimeseries() {
if (!session->checkTimeseriesExists("root.sg1.d1.s1")) {
session->createTimeseries("root.sg1.d1.s1", TSDataType::INT64, TSEncoding::RLE,
CompressionType::SNAPPY);
}
if (!session->checkTimeseriesExists("root.sg1.d1.s2")) {
session->createTimeseries("root.sg1.d1.s2", TSDataType::INT64, TSEncoding::RLE,
CompressionType::SNAPPY);
}
if (!session->checkTimeseriesExists("root.sg1.d1.s3")) {
session->createTimeseries("root.sg1.d1.s3", TSDataType::INT64, TSEncoding::RLE,
CompressionType::SNAPPY);
}
// create timeseries with tags and attributes
if (!session->checkTimeseriesExists("root.sg1.d1.s4")) {
map<string, string> tags;
tags["tag1"] = "v1";
map<string, string> attributes;
attributes["description"] = "v1";
session->createTimeseries("root.sg1.d1.s4", TSDataType::INT64, TSEncoding::RLE,
CompressionType::SNAPPY, NULL, &tags, &attributes, "temperature");
}
}
void createMultiTimeseries() {
if (!session->checkTimeseriesExists("root.sg1.d2.s1") && !session->checkTimeseriesExists("root.sg1.d2.s1")) {
vector<string> paths;
paths.push_back("root.sg1.d2.s1");
paths.push_back("root.sg1.d2.s2");
vector<TSDataType::TSDataType> tsDataTypes;
tsDataTypes.push_back(TSDataType::INT64);
tsDataTypes.push_back(TSDataType::INT64);
vector<TSEncoding::TSEncoding> tsEncodings;
tsEncodings.push_back(TSEncoding::RLE);
tsEncodings.push_back(TSEncoding::RLE);
vector<CompressionType::CompressionType> compressionTypes;
compressionTypes.push_back(CompressionType::SNAPPY);
compressionTypes.push_back(CompressionType::SNAPPY);
vector<map<string,string>> tagsList;
map<string,string> tags;
tags["unit"] = "kg";
tagsList.push_back(tags);
tagsList.push_back(tags);
vector<map<string,string>> attributesList;
map<string,string> attributes;
attributes["minValue"] = "1";
attributes["maxValue"] = "100";
attributesList.push_back(attributes);
attributesList.push_back(attributes);
vector<string> alias;
alias.push_back("weight1");
alias.push_back("weight2");
session->createMultiTimeseries(paths, tsDataTypes, tsEncodings, compressionTypes, NULL, &tagsList, &attributesList, &alias);
}
}
void insertRecord() {
string deviceId = "root.sg1.d1";
vector<string> measurements;
measurements.push_back("s1");
measurements.push_back("s2");
measurements.push_back("s3");
for (int64_t time = 0; time < 100; time++) {
vector<string> values;
values.push_back("11");
values.push_back("22");
values.push_back("33");
session->insertRecord(deviceId, time, measurements, values);
}
}
void insertTablet() {
pair<string, TSDataType::TSDataType> pairA("s1", TSDataType::INT64);
pair<string, TSDataType::TSDataType> pairB("s2", TSDataType::INT64);
pair<string, TSDataType::TSDataType> pairC("s3", TSDataType::INT64);
vector<pair<string, TSDataType::TSDataType>> schemas;
schemas.push_back(pairA);
schemas.push_back(pairB);
schemas.push_back(pairC);
Tablet tablet("root.sg1.d1", schemas, 100);
for (int64_t time = 0; time < 100; time++) {
int row = tablet.rowSize++;
tablet.timestamps[row] = time;
for (int i = 0; i < 3; i++) {
tablet.values[i][row] = to_string(i);
}
if (tablet.rowSize == tablet.maxRowNumber) {
session->insertTablet(tablet, true);
tablet.reset();
}
}
if (tablet.rowSize != 0) {
session->insertTablet(tablet);
tablet.reset();
}
}
void insertTablets() {
pair<string, TSDataType::TSDataType> pairA("s1", TSDataType::INT64);
pair<string, TSDataType::TSDataType> pairB("s2", TSDataType::INT64);
pair<string, TSDataType::TSDataType> pairC("s3", TSDataType::INT64);
vector<pair<string, TSDataType::TSDataType>> schemas;
schemas.push_back(pairA);
schemas.push_back(pairB);
schemas.push_back(pairC);
Tablet tablet1("root.sg1.d1", schemas, 100);
Tablet tablet2("root.sg1.d2", schemas, 100);
Tablet tablet3("root.sg1.d3", schemas, 100);
map<string, Tablet*> tabletMap;
tabletMap["root.sg1.d1"] = &tablet1;
tabletMap["root.sg1.d2"] = &tablet2;
tabletMap["root.sg1.d3"] = &tablet3;
for (int64_t time = 0; time < 100; time++) {
int row1 = tablet1.rowSize++;
int row2 = tablet2.rowSize++;
int row3 = tablet3.rowSize++;
tablet1.timestamps[row1] = time;
tablet2.timestamps[row2] = time;
tablet3.timestamps[row3] = time;
for (int i = 0; i < 3; i++) {
tablet1.values[i][row1] = to_string(i);
tablet2.values[i][row1] = to_string(i);
tablet3.values[i][row1] = to_string(i);
}
if (tablet1.rowSize == tablet1.maxRowNumber) {
session->insertTablets(tabletMap, true);
tablet1.reset();
tablet2.reset();
tablet3.reset();
}
}
if (tablet1.rowSize != 0) {
session->insertTablets(tabletMap, true);
tablet1.reset();
tablet2.reset();
tablet3.reset();
}
}
void insertRecords() {
string deviceId = "root.sg1.d1";
vector<string> measurements;
measurements.push_back("s1");
measurements.push_back("s2");
measurements.push_back("s3");
vector<string> deviceIds;
vector<vector<string>> measurementsList;
vector<vector<string>> valuesList;
vector<int64_t> timestamps;
vector<string>* values;
for (int64_t time = 0; time < 500; time++) {
values = new vector<string>();
values->push_back("1");
values->push_back("2");
values->push_back("3");
deviceIds.push_back(deviceId);
measurementsList.push_back(measurements);
valuesList.push_back(*values);
timestamps.push_back(time);
if (time != 0 && time % 100 == 0) {
session->insertRecords(deviceIds, timestamps, measurementsList, valuesList);
deviceIds.clear();
measurementsList.clear();
valuesList.clear();
timestamps.clear();
}
}
session->insertRecords(deviceIds, timestamps, measurementsList, valuesList);
}
void nonQuery() {
session->executeNonQueryStatement("insert into root.sg1.d1(timestamp,s1) values(200, 1);");
}
void query() {
unique_ptr<SessionDataSet> dataSet = session->executeQueryStatement("select * from root.sg1.d1");
cout << "timestamp" << " ";
for (string name : dataSet->getColumnNames()) {
cout << name << " ";
}
cout << endl;
dataSet->setBatchSize(1024);
while (dataSet->hasNext())
{
cout << dataSet->next()->toString();
}
dataSet->closeOperationHandle();
}
void deleteData() {
string path = "root.sg1.d1.s1";
int64_t deleteTime = 99;
session->deleteData(path, deleteTime);
}
void deleteTimeseries() {
vector<string> paths;
if (session->checkTimeseriesExists("root.sg1.d1.s1")) {
paths.push_back("root.sg1.d1.s1");
}
if (session->checkTimeseriesExists("root.sg1.d1.s2")) {
paths.push_back("root.sg1.d1.s2");
}
if (session->checkTimeseriesExists("root.sg1.d1.s3")) {
paths.push_back("root.sg1.d1.s3");
}
if (session->checkTimeseriesExists("root.sg1.d1.s4")) {
paths.push_back("root.sg1.d1.s4");
}
session->deleteTimeseries(paths);
}
void queryLast() {
unique_ptr<SessionDataSet> dataSet = session->executeQueryStatement("select last s1,s2,s3 from root.sg1.d1");
for (string name: dataSet->getColumnNames()) {
cout << name << " ";
}
cout << endl;
while (dataSet->hasNext()) {
cout << dataSet->next()->toString();
}
}
int main() {
session = new Session("127.0.0.1", 6667, "root", "root");
session->open(false);
cout << "setStorageGroup\n";
try {
session->setStorageGroup("root.sg1");
}
catch (IoTDBConnectionException e){
string errorMessage(e.what());
if (errorMessage.find("StorageGroupAlreadySetException") == string::npos) {
throw e;
}
}
createTimeseries();
createMultiTimeseries();
insertRecord();
queryLast();
insertTablet();
insertRecords();
insertTablets();
nonQuery();
query();
deleteData();
deleteTimeseries();
session->close();
return 0;
}
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