influxdb-java

Posted 2022-11-21 o沐森o

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目前仅支持

http api

java版本下载：（参考https://github.com/influxdata/influxdb-java）

  <dependency>
            <groupId>org.influxdb</groupId>
            <artifactId>influxdb-java</artifactId>
            <version>2.1</version>
        </dependency>

java 要求（应该是docker client）

Build Requirements

Java 1.7+
Maven 3.0+
Docker daemon running

InfluxDB influxDB = InfluxDBFactory.connect("http://172.17.0.2:8086", "root", "root");
String dbName = "aTimeSeries";
influxDB.createDatabase(dbName);

BatchPoints batchPoints = BatchPoints
                .database(dbName)
                .tag("async", "true")
                .retentionPolicy("default")
                .consistency(ConsistencyLevel.ALL)
                .build();
Point point1 = Point.measurement("cpu")
                    .time(System.currentTimeMillis(), TimeUnit.MILLISECONDS)
                    .field("idle", 90L).field("system", 9L)
                    .field("system", 1L)
                    .build();
Point point2 = Point.measurement("disk")
                    .time(System.currentTimeMillis(), TimeUnit.MILLISECONDS)
                    .field("used", 80L)
                    .field("free", 1L)
                    .build();
batchPoints.point(point1);
batchPoints.point(point2);
influxDB.write(batchPoints);
Query query = new Query("SELECT idle FROM cpu", dbName);
influxDB.query(query);
influxDB.deleteDatabase(dbName)

demo2 If your application produces only single Points, you can enable the batching functionality of influxdb-java:

InfluxDB influxDB = InfluxDBFactory.connect("http://172.17.0.2:8086", "root", "root");
String dbName = "aTimeSeries";
influxDB.createDatabase(dbName);

// Flush every 2000 Points, at least every 100ms
influxDB.enableBatch(2000, 100, TimeUnit.MILLISECONDS);

Point point1 = Point.measurement("cpu")
                    .time(System.currentTimeMillis(), TimeUnit.MILLISECONDS)
                    .field("idle", 90L).field("system", 9L)
                    .field("system", 1L)
                    .build();
Point point2 = Point.measurement("disk")
                    .time(System.currentTimeMillis(), TimeUnit.MILLISECONDS)
                    .field("used", 80L)
                    .field("free", 1L)
                    .build();

influxDB.write(dbName, "default", point1);
influxDB.write(dbName, "default", point2);
Query query = new Query("SELECT idle FROM cpu", dbName);
influxDB.query(query);
influxDB.deleteDatabase(dbName)

demo3 docker

package org.influxdb;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.influxdb.InfluxDB.LogLevel;
import org.influxdb.dto.BatchPoints;
import org.influxdb.dto.Point;
import org.influxdb.dto.Pong;
import org.influxdb.dto.Query;
import org.influxdb.dto.QueryResult;
import org.testng.Assert;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

import com.github.dockerjava.api.DockerClient;
import com.github.dockerjava.api.command.CreateContainerResponse;
import com.github.dockerjava.core.DockerClientBuilder;
import com.github.dockerjava.core.DockerClientConfig;

/**
 * Test the InfluxDB API.
 * 
 * @author stefan.majer [at] gmail.com
 * 
 */
@Test
public class InfluxDBTest 

	private InfluxDB influxDB;
	private DockerClient dockerClient;
	private CreateContainerResponse container;

	/**
	 * Create a influxDB connection before all tests start.
	 * 
	 * @throws InterruptedException
	 * @throws IOException
	 */
	@BeforeClass
	public void setUp() throws InterruptedException, IOException 
		// Disable logging for the DockerClient.
		Logger.getLogger("com.sun.jersey").setLevel(Level.OFF);
		DockerClientConfig config = DockerClientConfig
				.createDefaultConfigBuilder()
				.withVersion("1.16")
				.withUri("tcp://localhost:4243")
				.withUsername("roott")
				.withPassword("root")
				.build();
		this.dockerClient = DockerClientBuilder.getInstance(config).build();
		// this.dockerClient.pullImageCmd("majst01/influxdb-java");

		// ExposedPort tcp8086 = ExposedPort.tcp(8086);
		//
		// Ports portBindings = new Ports();
		// portBindings.bind(tcp8086, Ports.Binding(8086));
		// this.container = this.dockerClient.createContainerCmd("influxdb:0.9.0-rc7").exec();
		// this.dockerClient.startContainerCmd(this.container.getId()).withPortBindings(portBindings).exec();
		//
		// InspectContainerResponse inspectContainerResponse =
		// this.dockerClient.inspectContainerCmd(
		// this.container.getId()).exec();
		//
		// InputStream containerLogsStream = this.dockerClient
		// .logContainerCmd(this.container.getId())
		// .withStdErr()
		// .withStdOut()
		// .exec();

		// String ip = inspectContainerResponse.getNetworkSettings().getIpAddress();
		String ip = "127.0.0.1";
		this.influxDB = InfluxDBFactory.connect("http://" + ip + ":8086", "root", "root");
		boolean influxDBstarted = false;
		do 
			Pong response;
			try 
				response = this.influxDB.ping();
				System.out.println(response);
				if (!response.getVersion().equalsIgnoreCase("unknown")) 
					influxDBstarted = true;
				
			 catch (Exception e) 
				// NOOP intentional
				e.printStackTrace();
			
			Thread.sleep(100L);
		 while (!influxDBstarted);
		this.influxDB.setLogLevel(LogLevel.FULL);
		// String logs = CharStreams.toString(new InputStreamReader(containerLogsStream,
		// Charsets.UTF_8));
		System.out.println("##################################################################################");
		// System.out.println("Container Logs: \\n" + logs);
		System.out.println("#  Connected to InfluxDB Version: " + this.influxDB.version() + " #");
		System.out.println("##################################################################################");
	

	/**
	 * Ensure all Databases created get dropped afterwards.
	 */
	@AfterClass
	public void tearDown() 
		System.out.println("Kill the Docker container");
		// this.dockerClient.killContainerCmd(this.container.getId()).exec();
	

	/**
	 * Test for a ping.
	 */
	@Test(enabled = true)
	public void testPing() 
		Pong result = this.influxDB.ping();
		Assert.assertNotNull(result);
		Assert.assertNotEquals(result.getVersion(), "unknown");
	

	/**
	 * Test that version works.
	 */
	@Test(enabled = true)
	public void testVersion() 
		String version = this.influxDB.version();
		Assert.assertNotNull(version);
		Assert.assertFalse(version.contains("unknown"));
	

	/**
	 * Simple Test for a query.
	 */
	@Test(enabled = true)
	public void testQuery() 
		this.influxDB.query(new Query("CREATE DATABASE mydb2", "mydb"));
		this.influxDB.query(new Query("DROP DATABASE mydb2", "mydb"));
	

	/**
	 * Test that describe Databases works.
	 */
	@Test(enabled = true)
	public void testDescribeDatabases() 
		String dbName = "unittest_" + System.currentTimeMillis();
		this.influxDB.createDatabase(dbName);
		this.influxDB.describeDatabases();
		List<String> result = this.influxDB.describeDatabases();
		Assert.assertNotNull(result);
		Assert.assertTrue(result.size() > 0);
		boolean found = false;
		for (String database : result) 
			if (database.equals(dbName)) 
				found = true;
				break;
			

		
		Assert.assertTrue(found, "It is expected that describeDataBases contents the newly create database.");
	

	/**
	 * Test that writing to the new lineprotocol.
	 */
	@Test(enabled = true)
	public void testWrite() 
		String dbName = "write_unittest_" + System.currentTimeMillis();
		this.influxDB.createDatabase(dbName);

		BatchPoints batchPoints = BatchPoints.database(dbName).tag("async", "true").retentionPolicy("default").build();
		Point point1 = Point
				.measurement("cpu")
				.tag("atag", "test")
				.field("idle", 90L)
				.field("usertime", 9L)
				.field("system", 1L)
				.build();
		Point point2 = Point.measurement("disk").tag("atag", "test").field("used", 80L).field("free", 1L).build();
		batchPoints.point(point1);
		batchPoints.point(point2);
		this.influxDB.write(batchPoints);
		Query query = new Query("SELECT * FROM cpu GROUP BY *", dbName);
		QueryResult result = this.influxDB.query(query);
		Assert.assertFalse(result.getResults().get(0).getSeries().get(0).getTags().isEmpty());
		this.influxDB.deleteDatabase(dbName);
	

    /**
     * Test writing to the database using string protocol.
     */
    @Test(enabled = true)
    public void testWriteStringData() 
        String dbName = "write_unittest_" + System.currentTimeMillis();
        this.influxDB.createDatabase(dbName);

        this.influxDB.write(dbName, "default", InfluxDB.ConsistencyLevel.ONE, "cpu,atag=test idle=90,usertime=9,system=1");
        Query query = new Query("SELECT * FROM cpu GROUP BY *", dbName);
        QueryResult result = this.influxDB.query(query);
        Assert.assertFalse(result.getResults().get(0).getSeries().get(0).getTags().isEmpty());
        this.influxDB.deleteDatabase(dbName);
    

    /**
     * Test writing multiple records to the database using string protocol.
     */
    @Test(enabled = true)
    public void testWriteMultipleStringData() 
        String dbName = "write_unittest_" + System.currentTimeMillis();
        this.influxDB.createDatabase(dbName);

        this.influxDB.write(dbName, "default", InfluxDB.ConsistencyLevel.ONE, "cpu,atag=test1 idle=100,usertime=10,system=1\\ncpu,atag=test2 idle=200,usertime=20,system=2\\ncpu,atag=test3 idle=300,usertime=30,system=3");
        Query query = new Query("SELECT * FROM cpu GROUP BY *", dbName);
        QueryResult result = this.influxDB.query(query);

        Assert.assertEquals(result.getResults().get(0).getSeries().size(), 3);
        Assert.assertEquals(result.getResults().get(0).getSeries().get(0).getTags().get("atag"), "test1");
        Assert.assertEquals(result.getResults().get(0).getSeries().get(1).getTags().get("atag"), "test2");
        Assert.assertEquals(result.getResults().get(0).getSeries().get(2).getTags().get("atag"), "test3");
        this.influxDB.deleteDatabase(dbName);
    

    /**
     * Test writing multiple separate records to the database using string protocol.
     */
    @Test(enabled = true)
    public void testWriteMultipleStringDataLines() 
        String dbName = "write_unittest_" + System.currentTimeMillis();
        this.influxDB.createDatabase(dbName);

        this.influxDB.write(dbName, "default", InfluxDB.ConsistencyLevel.ONE, Arrays.asList(
                "cpu,atag=test1 idle=100,usertime=10,system=1",
                "cpu,atag=test2 idle=200,usertime=20,system=2",
                "cpu,atag=test3 idle=300,usertime=30,system=3"
        ));
        Query query = new Query("SELECT * FROM cpu GROUP BY *", dbName);
        QueryResult result = this.influxDB.query(query);

        Assert.assertEquals(result.getResults().get(0).getSeries().size(), 3);
        Assert.assertEquals(result.getResults().get(0).getSeries().get(0).getTags().get("atag"), "test1");
        Assert.assertEquals(result.getResults().get(0).getSeries().get(1).getTags().get("atag"), "test2");
        Assert.assertEquals(result.getResults().get(0).getSeries().get(2).getTags().get("atag"), "test3");
        this.influxDB.deleteDatabase(dbName);
    

	/**
	 * Test that creating database which name is composed of numbers only works
	 */
	@Test(enabled = true)
	public void testCreateNumericNamedDatabase() 
		String numericDbName = "123";

		this.influxDB.createDatabase(numericDbName);
		List<String> result = this.influxDB.describeDatabases();
		Assert.assertTrue(result.contains(numericDbName));
		this.influxDB.deleteDatabase(numericDbName);

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