Apache IoTDB Rust客户端 v0.3.3 正式版发布

内容简介：Apache IoTDB Rust 客户端 v0.3.3 正式版发布，同时也是第一个稳定版本，更新功能： 时区支持 get_time_zone set_time_zone 存储组 set_storage_group delete_storage_group 时间序列 create_timeseries create_m...

Apache IoTDB Rust 客户端 v0.3.3 正式版发布，同时也是第一个稳定版本，更新功能：

时区支持

• get_time_zone
• set_time_zone

存储组

• set_storage_group
• delete_storage_group

时间序列

• create_timeseries
• create_multi_timeseries
• delete_timeseries

数据写入

• insert_record
• insert_records_of_one_device
• insert_records
• insert_string_record
• insert_tablet
• insert_tablets
• delete_data

查询

• execute_statement
• execute_query_statemen
• execute_batch_statement
• execute_raw_data_query
• execute_update_statement

备注：iotdb-client-rs 贡献者 https://github.com/manlge ，同时也是 iotdb-client-go 的官方客户端贡献者

Apache IoTDB Client for Rust

概述

Apache IoTDB Rust 客户端

Apache IoTDB 官网: https://iotdb.apache.org 

Apache IoTDB Github 仓库: https://github.com/apache/iotdb

预置项

apache-iotdb 0.12.0 或更新版本

快速开始使用：

使用

Put this in your Cargo.toml:

[dependencies]
iotdb-client-rs="0.3.3"
chrono="0.4.19"
prettytable-rs="0.8.0"

use std::vec;

use chrono;

use chrono::Local;
use iotdb_client_rs::client::remote::{Config, RpcSession};
use iotdb_client_rs::client::{MeasurementSchema, Result, RowRecord, Session, Tablet, Value};
use iotdb_client_rs::protocal::{TSCompressionType, TSDataType, TSEncoding};
use prettytable::{cell, Row, Table};

fn main() {
    run().expect("failed to run session_example.")
}

fn run() -> Result<()> {
    let config = Config {
        host: String::from("127.0.0.1"),
        port: 6667,
        username: String::from("root"),
        password: String::from("root"),
        ..Default::default()
    };
    let mut session = RpcSession::new(&config)?;
    session.open()?;
    let tz = session.get_time_zone()?;
    if tz != "Asia/Shanghai" {
        session.set_time_zone("Asia/Shanghai")?;
    }
    session.set_storage_group("root.ln1")?;
    session.delete_storage_group("root.ln1")?;
    session.set_storage_group("root.ln1")?;
    session.set_storage_group("root.ln2")?;
    session.delete_storage_groups(vec!["root.ln1", "root.ln2"])?;
    session.create_timeseries(
        "root.sg_rs.dev2.status",
        TSDataType::Float,
        TSEncoding::Plain,
        TSCompressionType::SNAPPY,
        None,
        None,
        None,
        None,
    )?;
    session.delete_timeseries(vec!["root.sg_rs.dev2.status"])?;
    session.insert_record(
        "root.sg_rs.dev5",
        vec!["online", "desc"],
        vec![Value::Bool(false), Value::Text("F4145".to_string())],
        Local::now().timestamp_millis(),
        false,
    )?;
    session.delete_timeseries(vec!["root.sg_rs.dev5.online", "root.sg_rs.dev5.desc"])?;
    session.insert_records(
        vec!["root.sg_rs.dev1"],
        vec![vec![
            "restart_count",
            "tick_count",
            "price",
            "temperature",
            "description",
            "status",
        ]],
        vec![vec![
            Value::Int32(1),
            Value::Int64(2018),
            Value::Double(1988.1),
            Value::Float(12.1),
            Value::Text("Test Device 1".to_string()),
            Value::Bool(false),
        ]],
        vec![Local::now().timestamp_millis()],
    )?;
    session.delete_timeseries(vec![
        "root.sg_rs.dev1.restart_count",
        "root.sg_rs.dev1.tick_count",
        "root.sg_rs.dev1.price",
        "root.sg_rs.dev1.temperature",
        "root.sg_rs.dev1.description",
        "root.sg_rs.dev1.status",
    ])?;
    session.create_multi_timeseries(
        vec!["root.sg3.dev1.temperature", "root.sg3.dev1.desc"],
        vec![TSDataType::Float, TSDataType::Text],
        vec![TSEncoding::Plain, TSEncoding::Plain],
        vec![TSCompressionType::SNAPPY, TSCompressionType::SNAPPY],
        None,
        None,
        None,
        None,
    )?;
    session.delete_timeseries(vec!["root.sg3.dev1.temperature", "root.sg3.dev1.desc"])?;
    session.insert_string_record(
        "root.sg_rs.wf02.wt02",
        vec!["id", "location"],
        vec!["SN:001", "BeiJing"],
        Local::now().timestamp_millis(),
        false,
    )?;
    session.delete_timeseries(vec![
        "root.sg_rs.wf02.wt02.id",
        "root.sg_rs.wf02.wt02.location",
    ])?;
    session.insert_records_of_one_device(
        "root.sg_rs.dev0",
        vec![
            Local::now().timestamp_millis(),
            Local::now().timestamp_millis() - 1,
        ],
        vec![
            vec!["restart_count", "tick_count", "price"],
            vec!["temperature", "description", "status"],
        ],
        vec![
            vec![Value::Int32(1), Value::Int64(2018), Value::Double(1988.1)],
            vec![
                Value::Float(36.8),
                Value::Text("thermograph".to_string()),
                Value::Bool(false),
            ],
        ],
        false,
    )?;
    let mut ts = Local::now().timestamp_millis();
    let mut tablet1 = create_tablet(5, ts);
    tablet1.sort();
    ts += 5;
    let mut tablet2 = create_tablet(10, ts);
    ts += 10;
    let mut tablet3 = create_tablet(2, ts);
    tablet1.sort();
    session.insert_tablet(&tablet1)?;
    tablet2.sort();
    tablet3.sort();
    session.insert_tablets(vec![&tablet2, &tablet3])?;
    session.insert_records_of_one_device(
        "root.sg_rs.dev1",
        vec![1, 16],
        vec![vec!["status"], vec!["status"]],
        vec![vec![Value::Bool(true)], vec![Value::Bool(true)]],
        true,
    )?;
    session.delete_data(vec!["root.sg_rs.dev1.status"], 1, 16)?;
    let dataset = session.execute_query_statement("select * from root.sg_rs.device2", None)?;
    let mut table = Table::new();
    table.set_titles(Row::new(
        dataset
            .get_column_names()
            .iter()
            .map(|c| cell!(c))
            .collect(),
    ));
    dataset.for_each(|r: RowRecord| {
        table.add_row(Row::new(
            r.values.iter().map(|v: &Value| cell!(v)).collect(),
        ));
    });
    table.printstd();
    let dataset = session.execute_statement("show timeseries", None)?;
    let mut table = Table::new();
    table.set_titles(Row::new(
        dataset
            .get_column_names()
            .iter()
            .map(|c| cell!(c))
            .collect(),
    ));
    dataset.for_each(|r: RowRecord| {
        table.add_row(Row::new(
            r.values.iter().map(|v: &Value| cell!(v)).collect(),
        ));
    });
    table.printstd();
    session.execute_batch_statement(vec![
        "insert into root.sg_rs.dev6(time,s5) values(1,true)",
        "insert into root.sg_rs.dev6(time,s5) values(2,true)",
        "insert into root.sg_rs.dev6(time,s5) values(3,true)",
    ])?;
    let dataset = session.execute_raw_data_query(
        vec![
            "root.sg_rs.device2.restart_count",
            "root.sg_rs.device2.tick_count",
            "root.sg_rs.device2.description",
        ],
        0,
        i64::MAX,
    )?;
    let mut table = Table::new();
    table.set_titles(Row::new(
        dataset
            .get_column_names()
            .iter()
            .map(|c| cell!(c))
            .collect(),
    ));
    dataset.for_each(|r: RowRecord| {
        table.add_row(Row::new(
            r.values.iter().map(|v: &Value| cell!(v)).collect(),
        ));
    });
    table.printstd();
    if let Some(dataset) =
        session.execute_update_statement("delete timeseries root.sg_rs.dev1.*")?
    {
        dataset.for_each(|r| println!("timestamp: {} {:?}", r.timestamp, r.values));
    }
    session.close()?;
    Ok(())
}

fn create_tablet(row_count: i32, start_timestamp: i64) -> Tablet {
    let mut tablet = Tablet::new(
        "root.sg_rs.device2",
        vec![
            MeasurementSchema::new(
                String::from("status"),
                TSDataType::Boolean,
                TSEncoding::Plain,
                TSCompressionType::SNAPPY,
                None,
            ),
            MeasurementSchema::new(
                String::from("restart_count"),
                TSDataType::Int32,
                TSEncoding::RLE,
                TSCompressionType::SNAPPY,
                None,
            ),
            MeasurementSchema::new(
                String::from("tick_count"),
                TSDataType::Int64,
                TSEncoding::RLE,
                TSCompressionType::SNAPPY,
                None,
            ),
            MeasurementSchema::new(
                String::from("temperature"),
                TSDataType::Float,
                TSEncoding::Plain,
                TSCompressionType::SNAPPY,
                None,
            ),
            MeasurementSchema::new(
                String::from("price"),
                TSDataType::Double,
                TSEncoding::Gorilla,
                TSCompressionType::SNAPPY,
                None,
            ),
            MeasurementSchema::new(
                String::from("description"),
                TSDataType::Text,
                TSEncoding::Plain,
                TSCompressionType::SNAPPY,
                None,
            ),
        ],
    );
    (0..row_count).for_each(|row| {
        let ts = start_timestamp + row as i64;
        tablet
            .add_row(
                vec![
                    Value::Bool(ts % 2 == 0),
                    Value::Int32(row),
                    Value::Int64(row as i64),
                    Value::Float(row as f32 + 0.1),
                    Value::Double(row as f64 + 0.2),
                    Value::Text(format!("ts: {}", ts).to_string()),
                ],
                ts,
            )
            .unwrap_or_else(|err| eprintln!("Add row failed, reason '{}'", err));
    });
    tablet
}

下载：https://github.com/manlge/iotdb-client-rs/releases

源代码：https://github.com/manlge/iotdb-client-rs

Creats: https://crates.io/crates/iotdb-client-rs

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