Simple Log Service：建立定時SQL任務

前提條件

參數說明

{
  addLabels: "{}",
  hashLabels: "[]",
  labelKeys: "[\"your label1\",\"your label2\"]",
  metricKeys: "[\"your Indicator1\",\"your Indicator2\"]",
  metricName: "",
  timeKey: ""
}

範例程式碼

本樣本中，建立一個App.java檔案，將源Logstore的定時分析結果儲存到目標Logstore。樣本如下：

import com.aliyun.openservices.log.Client;
import com.aliyun.openservices.log.common.*;
import com.aliyun.openservices.log.exception.LogException;
import com.aliyun.openservices.log.request.CreateScheduledSQLRequest;

public class App {
    // 本樣本從環境變數中擷取AccessKey ID和AccessKey Secret。
    static String accessId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
    static String accessKey = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET");

    // 設定Project名稱和Logstore名稱。
    static String sourceProject="aliyun-test-sourceProject";
    static String destProject="aliyun-test-destProject";
    static String sourceLogstore = "logstore-name";
    static String destLogstore = "project-name";
    static String roleArn = "acs:ram::11111111:role/aliyunlogetlrole";
    // 設定Log Service的服務存取點。此處以杭州為例，其它地區請根據實際情況填寫。
    static String endpoint = "http://cn-hangzhou.log.aliyuncs.com";
    static String destEndpoint = "http://cn-hangzhou-intranet.log.aliyuncs.com";
    static long fromTime = 1648105200; //2022-03-23 15:00:00
    private static String script = "* | select a,b,c from log";

    private static ScheduledSQLBaseParameters generateParams(String dataFormat) {
        if (dataFormat.equalsIgnoreCase("log2log")) {
            return null;
        } else if (dataFormat.equalsIgnoreCase("log2metric")) {
            Log2MetricParameters params = new Log2MetricParameters();
            params.setMetricKeys("[\"a\", \"b\", \"c\"]");
            params.setLabelKeys("[\"d\", \"e\", \"f\"]");
            params.setHashLabels("[\"d\", \"f\"]");
            params.setAddLabels("{\"m\":\"h\", \"n\":\"i\"}");
            params.setTimeKey("time");
            return params;
        } else if (dataFormat.equalsIgnoreCase("metric2metric")) {
            Metric2MetricParameters params = new Metric2MetricParameters();
            params.setMetricName("name");
            params.setHashLabels("[\"d\", \"f\"]");
            params.setAddLabels("{\"m\":\"h\", \"n\":\"i\"}");
            return params;
        }
        return null;
    }

    private static ScheduledSQLConfiguration generateConfig() {
        ScheduledSQLConfiguration scheduledSQLConfiguration = new ScheduledSQLConfiguration();
        scheduledSQLConfiguration.setScript(script);
        scheduledSQLConfiguration.setSqlType("searchQuery");
        scheduledSQLConfiguration.setResourcePool("enhanced");
        scheduledSQLConfiguration.setRoleArn(roleArn);
        scheduledSQLConfiguration.setDestRoleArn(roleArn);
        scheduledSQLConfiguration.setSourceLogstore(sourceLogstore);
        scheduledSQLConfiguration.setDestEndpoint(destEndpoint);
        scheduledSQLConfiguration.setDestProject(destProject);
        scheduledSQLConfiguration.setDestLogstore(destLogstore);
        scheduledSQLConfiguration.setDataFormat("log2log");
        scheduledSQLConfiguration.setFromTimeExpr("@m-1m");
        scheduledSQLConfiguration.setToTimeExpr("@m");
        scheduledSQLConfiguration.setMaxRetries(20);
        scheduledSQLConfiguration.setMaxRunTimeInSeconds(600);
        scheduledSQLConfiguration.setFromTime(fromTime);
        scheduledSQLConfiguration.setToTime(0L);

        ScheduledSQLBaseParameters params = generateParams(scheduledSQLConfiguration.getDataFormat());
        scheduledSQLConfiguration.setParameters(params);

        return scheduledSQLConfiguration;
    }

    private static ScheduledSQL generateScheduledSQL() {
        ScheduledSQL scheduledSQLStructure = new ScheduledSQL();
        scheduledSQLStructure.setName("job-name");
        scheduledSQLStructure.setDisplayName("display-name");
        scheduledSQLStructure.setDescription("desc-name");
        ScheduledSQLConfiguration scheduledSQLConfiguration = generateConfig();
        scheduledSQLStructure.setConfiguration(scheduledSQLConfiguration);
        JobSchedule jobSchedule = new JobSchedule();
        jobSchedule.setType(JobScheduleType.FIXED_RATE);
        jobSchedule.setInterval("1m");
        jobSchedule.setDelay(10);
        jobSchedule.setRunImmediately(false);
        scheduledSQLStructure.setSchedule(jobSchedule);
        return scheduledSQLStructure;
    }

    public static void main(String[] args) {
        Client client = new Client(endpoint, accessId, accessKey);
        ScheduledSQL scheduledSQL = generateScheduledSQL();
        CreateScheduledSQLRequest request = new CreateScheduledSQLRequest(sourceProject, scheduledSQL);
        try {
            client.createScheduledSQL(request);
        } catch (LogException e) {
            e.printStackTrace();
        }
    }
} 

相關文檔

• 管理定時SQL的API請參見：

  • CreateScheduledSQL - 建立定時SQL任務

  • DeleteScheduledSQL - 刪除定時SQL任務

  • UpdateScheduledSQL - 更新定時SQL任務

  • EnableScheduledSQL - 開啟定時SQL

  • DisableScheduledSQL - 關閉定時SQL

  • ListScheduledSQLs - 列出定時SQL任務

  • GetScheduledSQL - 擷取定時SQL任務

• 更多範例程式碼，請參見Aliyun Log Java SDK on GitHub。