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16
docs/examples/JDBC/SpringJdbcTemplate/readme.md
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@ -1,11 +1,11 @@
## TDengine Spring JDBC Template Demo
`Spring JDBC Template` 简化了原生 JDBC Connection 获取释放等操作，使得操作数据库更加方便。
`Spring JDBC Template` simplifies the operations of acquiring and releasing native JDBC Connections, making database operations more convenient.
### 配置
### Configuration
修改 `src/main/resources/applicationContext.xml` 文件中 TDengine 的配置信息：
Modify the TDengine configuration in the `src/main/resources/applicationContext.xml` file:
```xml
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
@ -20,13 +20,15 @@
</bean>
```
### 打包运行
### Package and run
Navigate to the `TDengine/tests/examples/JDBC/SpringJdbcTemplate` directory and execute the following commands to generate an executable jar file.
进入 `TDengine/tests/examples/JDBC/SpringJdbcTemplate` 目录下，执行以下命令可以生成可执行 jar 包。
```shell
mvn clean package
```
打包成功之后，进入 `target/` 目录下，执行以下命令就可运行测试：
After successfully packaging, navigate to the `target/` directory and execute the following commands to run the tests:
```shell
java -jar target/SpringJdbcTemplate-1.0-SNAPSHOT-jar-with-dependencies.jar
```
```

10
docs/examples/JDBC/connectionPools/src/main/resources/log4j.properties
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@ -1,21 +1,21 @@
### 设置###
### Settings###
log4j.rootLogger=debug,stdout,DebugLog,ErrorLog
### 输出信息到控制抬 ###
### Output information to the console ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### 输出DEBUG 级别以上的日志到=logs/debug.log
### Output logs of DEBUG level and above to logs/debug.log
log4j.appender.DebugLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DebugLog.File=logs/debug.log
log4j.appender.DebugLog.Append=true
log4j.appender.DebugLog.Threshold=DEBUG
log4j.appender.DebugLog.layout=org.apache.log4j.PatternLayout
log4j.appender.DebugLog.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
### 输出ERROR 级别以上的日志到=logs/error.log
### Output logs of ERROR level and above to logs/error.log
log4j.appender.ErrorLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.ErrorLog.File=logs/error.log
log4j.appender.ErrorLog.Append=true
log4j.appender.ErrorLog.Threshold=ERROR
log4j.appender.ErrorLog.layout=org.apache.log4j.PatternLayout
log4j.appender.ErrorLog.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
log4j.appender.ErrorLog.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

21
docs/examples/JDBC/connectionPools/src/main/resources/proxool.xml
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@ -1,27 +1,28 @@
<?xml version="1.0" encoding="UTF-8"?>
<something-else-entirely>
<proxool>
<!-- Alias for the data source -->
<alias>ds</alias>
<!--数据源的别名-->
<!-- URL connection string -->
<driver-url>jdbc:TAOS-RS://127.0.0.1:6041/log</driver-url>
<!--url连接串-->
<!-- Driver class -->
<driver-class>com.taosdata.jdbc.rs.RestfulDriver</driver-class>
<!--驱动类-->
<driver-properties>
<property name="user" value="root"/>
<property name="password" value="taosdata"/>
</driver-properties>
<!--最大连接数(默认5个),超过了这个连接数,再有请求时,就排在队列中等候,最大的等待请求数由maximum-new-connections决定 -->
<!-- Maximum connection count (default is 5). If this number is exceeded, new requests will be queued. The maximum number of queued requests is determined by maximum-new-connections -->
<maximum-connection-count>100</maximum-connection-count>
<!-- 定义连接池中的最大连接数 -->
<!-- Defines the maximum number of connections in the connection pool -->
<maximum-active-time>100</maximum-active-time>
<!--最少保持的空闲连接数(默认2个)-->
<!-- Minimum number of idle connections to maintain (default is 2) -->
<prototype-count>1</prototype-count>
<!--最小连接数(默认2个)-->
<!-- Minimum connection count (default is 2) -->
<minimum-connection-count>5</minimum-connection-count>
<!--proxool自动侦察各个连接状态的时间间隔(毫秒),侦察到空闲的连接就马上回收,超时的销毁 默认30秒-->
<!-- Interval (in milliseconds) for Proxool to automatically check the status of each connection. Idle connections are immediately reclaimed, and timed-out connections are destroyed. Default is 30 seconds -->
<house-keeping-sleep-time>30000</house-keeping-sleep-time>
<!--用于保持连接的测试语句 -->
<!-- Test statement used to maintain the connection -->
<house-keeping-test-sql>select server_version()</house-keeping-test-sql>
</proxool>
</something-else-entirely>
</something-else-entirely>

9
docs/examples/JDBC/consumer-demo/src/main/java/com/taosdata/Worker.java
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@ -35,17 +35,18 @@ public class Worker implements Runnable {
public void run() {
while (!Thread.interrupted()) {
try {
// 控制请求频率
// Control request rate
if (semaphore.tryAcquire()) {
ConsumerRecords<Bean> records = consumer.poll(Duration.ofMillis(sleepTime));
pool.submit(() -> {
RateLimiter limiter = RateLimiter.create(rate);
try {
for (ConsumerRecord<Bean> record : records) {
// 流量控制
// Traffic control
limiter.acquire();
// 业务处理数据
System.out.println("[" + LocalDateTime.now() + "] Thread id:" + Thread.currentThread().getId() + " -> " + record.value());
// Business data processing
System.out.println("[" + LocalDateTime.now() + "] Thread id:"
+ Thread.currentThread().getId() + " -> " + record.value());
}
} finally {
semaphore.release();

8
docs/examples/JDBC/mybatisplus-demo/readme
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@ -1,14 +1,14 @@
# 使用说明
# Instructions
## 创建使用db
## Create and use the database
```shell
$ taos
> create database mp_test
```
## 执行测试用例
## Execute test cases
```shell
$ mvn clean test
```
```

14
docs/examples/JDBC/springbootdemo/readme.md
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@ -1,6 +1,6 @@
## TDengine SpringBoot + Mybatis Demo
## 需要提前创建 test 数据库
## Need to create a test database in advance
```
$ taos -s 'create database if not exists test'
@ -8,7 +8,7 @@ $ taos -s 'create database if not exists test'
$ curl http://localhost:8080/weather/init
```
### 配置 application.properties
### Configure application.properties
```properties
# datasource config
spring.datasource.driver-class-name=com.taosdata.jdbc.TSDBDriver
@ -38,9 +38,9 @@ mybatis.mapper-locations=classpath:mapper/*.xml
logging.level.com.taosdata.jdbc.springbootdemo.dao=debug
```
### 主要功能
### Main functions
* 创建数据库和表
* Create databases and tables
```xml
<!-- weatherMapper.xml -->
<update id="createDB" >
@ -52,14 +52,14 @@ logging.level.com.taosdata.jdbc.springbootdemo.dao=debug
</update>
```
* 插入单条记录
* Insert a single record
```xml
<!-- weatherMapper.xml -->
<insert id="insert" parameterType="Weather" >
insert into test.weather (ts, temperature, humidity) values (now, #{temperature,jdbcType=INTEGER}, #{humidity,jdbcType=FLOAT})
</insert>
```
* 插入多条记录
* Insert multiple records
```xml
<!-- weatherMapper.xml -->
<insert id="batchInsert" parameterType="java.util.List" >
@ -69,7 +69,7 @@ logging.level.com.taosdata.jdbc.springbootdemo.dao=debug
</foreach>
</insert>
```
* 分页查询
* Pagination query
```xml
<!-- weatherMapper.xml -->
<?xml version="1.0" encoding="UTF-8"?>

7
docs/examples/JDBC/taosdemo/readme.md
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@ -1,11 +1,14 @@
```
cd tests/examples/JDBC/taosdemo
mvn clean package -Dmaven.test.skip=true
# 先建表，再插入的
# Create tables first, then insert data
java -jar target/taosdemo-2.0.1-jar-with-dependencies.jar -host <hostname> -database <db name> -doCreateTable true -superTableSQL "create table weather(ts timestamp, f1 int) tags(t1 nchar(4))" -numOfTables 1000 -numOfRowsPerTable 100000000 -numOfThreadsForInsert 10 -numOfTablesPerSQL 10 -numOfValuesPerSQL 100
# 不建表，直接插入的
# Insert data directly without creating tables
java -jar target/taosdemo-2.0.1-jar-with-dependencies.jar -host <hostname> -database <db name> -doCreateTable false -superTableSQL "create table weather(ts timestamp, f1 int) tags(t1 nchar(4))" -numOfTables 1000 -numOfRowsPerTable 100000000 -numOfThreadsForInsert 10 -numOfTablesPerSQL 10 -numOfValuesPerSQL 100
```
如果发生错误 Exception in thread "main" java.lang.UnsatisfiedLinkError: no taos in java.library.path
请检查是否安装 TDengine 客户端安装包或编译 TDengine 安装。如果确定已经安装过还出现这个错误，可以在命令行 java 后加 -Djava.library.path=/usr/lib 来指定寻找共享库的路径。
If you encounter the error Exception in thread "main" `java.lang.UnsatisfiedLinkError: no taos in java.library.path`, please check whether the TDengine client package is installed or TDengine is compiled and installed. If you are sure it is installed and still encounter this error, you can add `-Djava.library.path=/usr/lib` after the `java` command to specify the path to the shared library.

15
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/TaosDemoApplication.java
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@ -24,14 +24,14 @@ public class TaosDemoApplication {
private static final Logger logger = LogManager.getLogger(TaosDemoApplication.class);
public static void main(String[] args) throws IOException {
// 读配置参数
// Read configuration parameters
JdbcTaosdemoConfig config = new JdbcTaosdemoConfig(args);
boolean isHelp = Arrays.asList(args).contains("--help");
if (isHelp || config.host == null || config.host.isEmpty()) {
JdbcTaosdemoConfig.printHelp();
System.exit(0);
}
// 初始化
//
final DataSource dataSource = DataSourceFactory.getInstance(config.host, config.port, config.user,
config.password);
if (config.executeSql != null && !config.executeSql.isEmpty()
@ -50,7 +50,7 @@ public class TaosDemoApplication {
final SuperTableService superTableService = new SuperTableService(dataSource);
final SubTableService subTableService = new SubTableService(dataSource);
// 创建数据库
// create database
long start = System.currentTimeMillis();
Map<String, String> databaseParam = new HashMap<>();
databaseParam.put("database", config.database);
@ -81,13 +81,13 @@ public class TaosDemoApplication {
config.prefixOfFields, config.numOfTags, config.prefixOfTags);
}
/**********************************************************************************/
// 建表
// create table
start = System.currentTimeMillis();
if (config.doCreateTable) {
superTableService.drop(superTableMeta.getDatabase(), superTableMeta.getName());
superTableService.create(superTableMeta);
if (!config.autoCreateTable) {
// 批量建子表
// create sub tables in batch
subTableService.createSubTable(superTableMeta, config.numOfTables, config.prefixOfTable,
config.numOfThreadsForCreate);
}
@ -95,7 +95,7 @@ public class TaosDemoApplication {
end = System.currentTimeMillis();
logger.info(">>> create table time cost : " + (end - start) + " ms.");
/**********************************************************************************/
// 插入
// insert data
long tableSize = config.numOfTables;
int threadSize = config.numOfThreadsForInsert;
long startTime = getProperStartTime(config.startTime, config.days);
@ -111,10 +111,9 @@ public class TaosDemoApplication {
end = System.currentTimeMillis();
logger.info("insert " + affectedRows + " rows, time cost: " + (end - start) + " ms");
/**********************************************************************************/
// 查询
/**********************************************************************************/
// 删除表
// drop table
if (config.dropTable) {
superTableService.drop(config.database, config.superTable);
}

15
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/dao/SubTableMapper.java
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@ -9,21 +9,22 @@ import java.util.List;
@Repository
public interface SubTableMapper {
// 创建：子表
// Create: SubTable
void createUsingSuperTable(SubTableMeta subTableMeta);
// 插入：一张子表多个values
// Insert: Multiple records into one SubTable
int insertOneTableMultiValues(SubTableValue subTableValue);
// 插入：一张子表多个values, 自动建表
// Insert: Multiple records into one SubTable, auto create SubTables
int insertOneTableMultiValuesUsingSuperTable(SubTableValue subTableValue);
// 插入：多张表多个values
// Insert: Multiple records into multiple SubTable
int insertMultiTableMultiValues(List<SubTableValue> tables);
// 插入：多张表多个values，自动建表
// Insert: Multiple records into multiple SubTable, auto create SubTables
int insertMultiTableMultiValuesUsingSuperTable(List<SubTableValue> tables);
//<!-- TODO:修改子表标签值 alter table ${tablename} set tag tagName=newTagValue-->
// <!-- TODO: Modify SubTable tag value: alter table ${tablename} set tag
// tagName=newTagValue-->
}
}

22
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/dao/SuperTableMapper.java
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@ -6,24 +6,26 @@ import org.springframework.stereotype.Repository;
@Repository
public interface SuperTableMapper {
// 创建超级表 create table if not exists xxx.xxx (f1 type1, f2 type2, ... ) tags( t1 type1, t2 type2 ...)
// Create super table: create table if not exists xxx.xxx (f1 type1, f2 type2,
// ... ) tags( t1 type1, t2 type2 ...)
void createSuperTable(SuperTableMeta tableMetadata);
// 删除超级表 drop table if exists xxx;
// Drop super table: drop table if exists xxx;
void dropSuperTable(String database, String name);
//<!-- TODO:查询所有超级表信息 show stables -->
// <!-- TODO: Query all super table information show stables -->
//<!-- TODO:查询表结构 describe stable -->
// <!-- TODO: Query table structure describe stable -->
//<!-- TODO:增加列 alter table ${tablename} add column fieldName dataType -->
// <!-- TODO: Add column alter table ${tablename} add column fieldName dataType
// -->
//<!-- TODO:删除列 alter table ${tablename} drop column fieldName -->
// <!-- TODO: Drop column alter table ${tablename} drop column fieldName -->
//<!-- TODO:添加标签 alter table ${tablename} add tag new_tagName tag_type -->
// <!-- TODO: Add tag alter table ${tablename} add tag new_tagName tag_type -->
//<!-- TODO:删除标签 alter table ${tablename} drop tag_name -->
//<!-- TODO:修改标签名 alter table ${tablename} change tag old_tagName new_tagName -->
// <!-- TODO: Drop tag alter table ${tablename} drop tag_name -->
// <!-- TODO: Change tag name alter table ${tablename} change tag old_tagName
// new_tagName -->
}

13
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/dao/TableMapper.java
View File

@ -9,19 +9,18 @@ import java.util.List;
@Repository
public interface TableMapper {
// 创建：普通表
// Create: Normal table
void create(TableMeta tableMeta);
// 插入：一张表多个value
// Insert: Multiple records into one table
int insertOneTableMultiValues(TableValue values);
// 插入: 一张表多个value，指定的列
// Insert: Multiple records into one table, specified columns
int insertOneTableMultiValuesWithColumns(TableValue values);
// 插入：多个表多个value
// Insert: Multiple records into multiple tables
int insertMultiTableMultiValues(List<TableValue> tables);
// 插入：多个表多个value, 指定的列
// Insert: Multiple records into multiple tables, specified columns
int insertMultiTableMultiValuesWithColumns(List<TableValue> tables);
}
}

4
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/DatabaseService.java
View File

@ -14,12 +14,12 @@ public class DatabaseService {
this.databaseMapper = new DatabaseMapperImpl(dataSource);
}
// 建库，指定 name
// Create database with specified name
public void createDatabase(String database) {
databaseMapper.createDatabase(database);
}
// 建库，指定参数 keep,days,replica等
// Create database with specified parameters such as keep, days, replica, etc.
public void createDatabase(Map<String, String> map) {
if (map.isEmpty())
return;

60
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/SubTableService.java
View File

@ -27,7 +27,8 @@ public class SubTableService extends AbstractService {
this.mapper = new SubTableMapperImpl(datasource);
}
public void createSubTable(SuperTableMeta superTableMeta, long numOfTables, String prefixOfTable, int numOfThreadsForCreate) {
public void createSubTable(SuperTableMeta superTableMeta, long numOfTables, String prefixOfTable,
int numOfThreadsForCreate) {
ExecutorService executor = Executors.newFixedThreadPool(numOfThreadsForCreate);
for (long i = 0; i < numOfTables; i++) {
long tableIndex = i;
@ -35,54 +36,58 @@ public class SubTableService extends AbstractService {
}
executor.shutdown();
try {
executor.awaitTermination(Long.MAX_VALUE,TimeUnit.NANOSECONDS);
executor.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
public void createSubTable(SuperTableMeta superTableMeta, String tableName) {
// 构造数据
// Construct data
SubTableMeta meta = SubTableMetaGenerator.generate(superTableMeta, tableName);
createSubTable(meta);
}
// 创建一张子表，可以指定database，supertable，tablename，tag值
// Create a sub-table, specifying database, super table, table name, and tag
// values
public void createSubTable(SubTableMeta subTableMeta) {
mapper.createUsingSuperTable(subTableMeta);
}
/*************************************************************************************************************************/
// 插入：多线程，多表
// Insert: Multi-threaded, multiple tables
public int insert(List<SubTableValue> subTableValues, int threadSize, int frequency) {
ExecutorService executor = Executors.newFixedThreadPool(threadSize);
Future<Integer> future = executor.submit(() -> insert(subTableValues));
executor.shutdown();
//TODO：frequency
// TODO：frequency
return getAffectRows(future);
}
// 插入：单表，insert into xxx values(),()...
// Insert: Single table, insert into xxx values(),()...
public int insert(SubTableValue subTableValue) {
return mapper.insertOneTableMultiValues(subTableValue);
}
// 插入: 多表，insert into xxx values(),()... xxx values(),()...
// Insert: Multiple tables, insert into xxx values(),()... xxx values(),()...
public int insert(List<SubTableValue> subTableValues) {
return mapper.insertMultiTableMultiValues(subTableValues);
}
// 插入：单表，自动建表, insert into xxx using xxx tags(...) values(),()...
// Insert: Single table, auto-create table, insert into xxx using xxx tags(...)
// values(),()...
public int insertAutoCreateTable(SubTableValue subTableValue) {
return mapper.insertOneTableMultiValuesUsingSuperTable(subTableValue);
}
// 插入：多表，自动建表, insert into xxx using XXX tags(...) values(),()... xxx using XXX tags(...) values(),()...
// Insert: Multiple tables, auto-create tables, insert into xxx using XXX
// tags(...) values(),()... xxx using XXX tags(...) values(),()...
public int insertAutoCreateTable(List<SubTableValue> subTableValues) {
return mapper.insertMultiTableMultiValuesUsingSuperTable(subTableValues);
}
public int insertMultiThreads(SuperTableMeta superTableMeta, int threadSize, long tableSize, long startTime, long gap, JdbcTaosdemoConfig config) {
public int insertMultiThreads(SuperTableMeta superTableMeta, int threadSize, long tableSize, long startTime,
long gap, JdbcTaosdemoConfig config) {
List<FutureTask> taskList = new ArrayList<>();
List<Thread> threads = IntStream.range(0, threadSize)
.mapToObj(i -> {
@ -94,8 +99,7 @@ public class SubTableService extends AbstractService {
startTime, config.timeGap,
config.numOfRowsPerTable, config.numOfTablesPerSQL, config.numOfValuesPerSQL,
config.order, config.rate, config.range,
config.prefixOfTable, config.autoCreateTable)
);
config.prefixOfTable, config.autoCreateTable));
taskList.add(task);
return new Thread(task, "InsertThread-" + i);
}).collect(Collectors.toList());
@ -126,7 +130,7 @@ public class SubTableService extends AbstractService {
private class InsertTask implements Callable<Integer> {
private final long startTableInd; // included
private final long endTableInd; // excluded
private final long endTableInd; // excluded
private final long startTime;
private final long timeGap;
private final long numOfRowsPerTable;
@ -140,10 +144,10 @@ public class SubTableService extends AbstractService {
private final boolean autoCreateTable;
public InsertTask(SuperTableMeta superTableMeta, long startTableInd, long endTableInd,
long startTime, long timeGap,
long numOfRowsPerTable, long numOfTablesPerSQL, long numOfValuesPerSQL,
int order, int rate, long range,
String prefixOfTable, boolean autoCreateTable) {
long startTime, long timeGap,
long numOfRowsPerTable, long numOfTablesPerSQL, long numOfValuesPerSQL,
int order, int rate, long range,
String prefixOfTable, boolean autoCreateTable) {
this.superTableMeta = superTableMeta;
this.startTableInd = startTableInd;
this.endTableInd = endTableInd;
@ -159,7 +163,6 @@ public class SubTableService extends AbstractService {
this.autoCreateTable = autoCreateTable;
}
@Override
public Integer call() {
@ -171,23 +174,27 @@ public class SubTableService extends AbstractService {
int affectRows = 0;
// row
for (long rowCnt = 0; rowCnt < numOfRowsPerTable; ) {
for (long rowCnt = 0; rowCnt < numOfRowsPerTable;) {
long rowSize = numOfValuesPerSQL;
if (rowCnt + rowSize > numOfRowsPerTable) {
rowSize = numOfRowsPerTable - rowCnt;
}
//table
for (long tableCnt = startTableInd; tableCnt < endTableInd; ) {
// table
for (long tableCnt = startTableInd; tableCnt < endTableInd;) {
long tableSize = numOfTablesPerSQL;
if (tableCnt + tableSize > endTableInd) {
tableSize = endTableInd - tableCnt;
}
long startTime = this.startTime + rowCnt * timeGap;
// System.out.println(Thread.currentThread().getName() + " >>> " + "rowCnt: " + rowCnt + ", rowSize: " + rowSize + ", " + "tableCnt: " + tableCnt + ",tableSize: " + tableSize + ", " + "startTime: " + startTime + ",timeGap: " + timeGap + "");
// System.out.println(Thread.currentThread().getName() + " >>> " + "rowCnt: " +
// rowCnt + ", rowSize: " + rowSize + ", " + "tableCnt: " + tableCnt +
// ",tableSize: " + tableSize + ", " + "startTime: " + startTime + ",timeGap: "
// + timeGap + "");
/***********************************************/
// 生成数据
List<SubTableValue> data = SubTableValueGenerator.generate(superTableMeta, prefixOfTable, tableCnt, tableSize, rowSize, startTime, timeGap);
// 乱序
// Construct data
List<SubTableValue> data = SubTableValueGenerator.generate(superTableMeta, prefixOfTable, tableCnt,
tableSize, rowSize, startTime, timeGap);
// disorder
if (order != 0)
SubTableValueGenerator.disrupt(data, rate, range);
// insert
@ -205,5 +212,4 @@ public class SubTableService extends AbstractService {
}
}
}

2
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/SuperTableService.java
View File

@ -14,7 +14,7 @@ public class SuperTableService {
this.superTableMapper = new SuperTableMapperImpl(dataSource);
}
// 创建超级表，指定每个field的名称和类型，每个tag的名称和类型
// Create super table, specifying the name and type of each field and each tag
public void create(SuperTableMeta superTableMeta) {
superTableMapper.createSuperTable(superTableMeta);
}

5
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/TableService.java
View File

@ -11,15 +11,14 @@ public class TableService extends AbstractService {
private TableMapper tableMapper;
//创建一张表
// Create a table
public void create(TableMeta tableMeta) {
tableMapper.create(tableMeta);
}
//创建多张表
// Create multiple tables
public void create(List<TableMeta> tables) {
tables.stream().forEach(this::create);
}
}

10
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/data/FieldValueGenerator.java
View File

@ -11,7 +11,8 @@ public class FieldValueGenerator {
public static Random random = new Random(System.currentTimeMillis());
// 生成start到end的时间序列，时间戳为顺序，不含有乱序，field的value为随机生成
// Generate a time series from start to end, timestamps are in order without
// disorder, field values are randomly generated
public static List<RowValue> generate(long start, long end, long timeGap, List<FieldMeta> fieldMetaList) {
List<RowValue> values = new ArrayList<>();
@ -29,9 +30,12 @@ public class FieldValueGenerator {
return values;
}
// 生成start到end的时间序列，时间戳为顺序，含有乱序，rate为乱序的比例，range为乱序前跳范围，field的value为随机生成
// Generate a time series from start to end, timestamps are in order but include
// disorder, rate is the proportion of disorder, range is the jump range before
// disorder, field values are randomly generated
public static List<RowValue> disrupt(List<RowValue> values, int rate, long range) {
long timeGap = (long) (values.get(1).getFields().get(0).getValue()) - (long) (values.get(0).getFields().get(0).getValue());
long timeGap = (long) (values.get(1).getFields().get(0).getValue())
- (long) (values.get(0).getFields().get(0).getValue());
int bugSize = values.size() * rate / 100;
Set<Integer> bugIndSet = new HashSet<>();
while (bugIndSet.size() < bugSize) {

2
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/data/SubTableMetaGenerator.java
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@ -9,7 +9,7 @@ import java.util.List;
public class SubTableMetaGenerator {
// 创建tableSize张子表，使用tablePrefix作为子表名的前缀，使用superTableMeta的元数据
// Create tableSize sub-tables, using tablePrefix as the prefix for sub-table names, and using the metadata from superTableMeta
// create table xxx using XXX tags(XXX)
public static List<SubTableMeta> generate(SuperTableMeta superTableMeta, int tableSize, String tablePrefix) {
List<SubTableMeta> subTableMetaList = new ArrayList<>();

13
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/data/SuperTableMetaGenerator.java
View File

@ -10,10 +10,11 @@ import java.util.List;
public class SuperTableMetaGenerator {
// 创建超级表，使用指定SQL语句
// Create super table using the specified SQL statement
public static SuperTableMeta generate(String superTableSQL) {
SuperTableMeta tableMeta = new SuperTableMeta();
// for example : create table superTable (ts timestamp, temperature float, humidity int) tags(location nchar(64), groupId int)
// for example : create table superTable (ts timestamp, temperature float,
// humidity int) tags(location nchar(64), groupId int)
superTableSQL = superTableSQL.trim().toLowerCase();
if (!superTableSQL.startsWith("create"))
throw new RuntimeException("invalid create super table SQL");
@ -54,8 +55,9 @@ public class SuperTableMetaGenerator {
return tableMeta;
}
// 创建超级表,指定field和tag的个数
public static SuperTableMeta generate(String database, String name, int fieldSize, String fieldPrefix, int tagSize, String tagPrefix) {
// Create super table with specified number of fields and tags
public static SuperTableMeta generate(String database, String name, int fieldSize, String fieldPrefix, int tagSize,
String tagPrefix) {
if (fieldSize < 2 || tagSize < 1) {
throw new RuntimeException("create super table but fieldSize less than 2 or tagSize less than 1");
}
@ -66,7 +68,8 @@ public class SuperTableMetaGenerator {
List<FieldMeta> fields = new ArrayList<>();
fields.add(new FieldMeta("ts", "timestamp"));
for (int i = 1; i <= fieldSize; i++) {
fields.add(new FieldMeta(fieldPrefix + "" + i, TaosConstants.DATA_TYPES[i % TaosConstants.DATA_TYPES.length]));
fields.add(
new FieldMeta(fieldPrefix + "" + i, TaosConstants.DATA_TYPES[i % TaosConstants.DATA_TYPES.length]));
}
tableMetadata.setFields(fields);
// tags

2
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/data/TagValueGenerator.java
View File

@ -9,7 +9,7 @@ import java.util.List;
public class TagValueGenerator {
// 创建标签值：使用tagMetas
// Create tag values using tagMetas
public static List<TagValue> generate(List<TagMeta> tagMetas) {
List<TagValue> tagValues = new ArrayList<>();
for (int i = 0; i < tagMetas.size(); i++) {

6
docs/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/utils/TimeStampUtil.java
View File

@ -41,17 +41,17 @@ public class TimeStampUtil {
if (start == 0)
start = now - size * timeGap;
// 如果size小于1异常
// If size is less than 1, throw an exception
if (size < 1)
throw new IllegalArgumentException("size less than 1.");
// 如果timeGap为1，已经超长，需要前移start
// If timeGap is 1 and it exceeds the limit, move start forward
if (start + size > now) {
start = now - size;
return new TimeTuple(start, now, 1);
}
long end = start + (long) (timeGap * size);
if (end > now) {
//压缩timeGap
// Compress timeGap
end = now;
double gap = (end - start) / (size * 1.0f);
if (gap < 1.0f) {

10
docs/examples/JDBC/taosdemo/src/main/resources/log4j.properties
View File

@ -1,21 +1,21 @@
### 设置###
### Settings ###
log4j.rootLogger=info,stdout
### 输出信息到控制抬 ###
### Output information to the console ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### 输出DEBUG 级别以上的日志到=logs/debug.log
### Output logs of DEBUG level and above to logs/debug.log ###
log4j.appender.DebugLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DebugLog.File=logs/debug.log
log4j.appender.DebugLog.Append=true
log4j.appender.DebugLog.Threshold=DEBUG
log4j.appender.DebugLog.layout=org.apache.log4j.PatternLayout
log4j.appender.DebugLog.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
### 输出ERROR 级别以上的日志到=logs/error.log
### Output logs of ERROR level and above to logs/error.log ###
log4j.appender.ErrorLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.ErrorLog.File=logs/error.log
log4j.appender.ErrorLog.Append=true
log4j.appender.ErrorLog.Threshold=ERROR
log4j.appender.ErrorLog.layout=org.apache.log4j.PatternLayout
log4j.appender.ErrorLog.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
log4j.appender.ErrorLog.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n