Simple Log Service:use an sdk to consume logs based on spl

<dependency>
  <groupId>com.google.protobuf</groupId>
  <artifactId>protobuf-java</artifactId>
  <version>2.5.0</version>
</dependency>
<!-- Import the Simple Log Service SDK -->
<dependency>
  <groupId>com.aliyun.openservices</groupId>
  <artifactId>aliyun-log</artifactId>
  <version>0.6.126</version>
</dependency>

import com.aliyun.openservices.log.Client;
import com.aliyun.openservices.log.common.*;
import com.aliyun.openservices.log.request.PullLogsRequest;
import com.aliyun.openservices.log.response.ListShardResponse;
import com.aliyun.openservices.log.response.PullLogsResponse;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class PullLogsWithSPLDemo {
    // The endpoint of Simple Log Service. This example uses the China (Hangzhou) region. Replace it with the endpoint of your region.
    private static final String endpoint = "cn-hangzhou.log.aliyuncs.com";
    // This example obtains the AccessKey ID and AccessKey secret from environment variables.
    private static final String accessKeyId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
    private static final String accessKeySecret = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
    // The project name. Replace it with your actual project name.
    private static final String project = "ali-project-test";
    // The Logstore name. Replace it with your actual Logstore name.
    private static final String logStore = "test-logstore";

    public static void main(String[] args) throws Exception {
        // The ID of the Consume Processor.
        String processorName = "processor-test";
        // Create a Simple Log Service client.
        Client client = new Client(endpoint, accessKeyId, accessKeySecret);
        // Query the shards of the Logstore.
        ListShardResponse resp = client.ListShard(project, logStore);        System.out.printf("%s has %d shards\n", logStore, resp.GetShards().size());
        Map<Integer, String> cursorMap = new HashMap<>();
        for (Shard shard : resp.GetShards()) {
            int shardId = shard.getShardId();
            // Start consumption from the beginning and get a cursor. To start from the end, use Consts.CursorMode.END.
            cursorMap.put(shardId, client.GetCursor(project, logStore, shardId, Consts.CursorMode.BEGIN).GetCursor());
        }
        try {
            while (true) {
                // Get logs from each shard.
                for (Shard shard : resp.GetShards()) {
                    int shardId = shard.getShardId();
                    PullLogsRequest request = new PullLogsRequest(project, logStore, shardId, 1000, cursorMap.get(shardId));
                    // The ID of the Consume Processor.
                    request.setProcessor(processorName);
                    PullLogsResponse response = client.pullLogs(request);
                    // Logs are in log groups. Split them as needed.
                    List<LogGroupData> logGroups = response.getLogGroups();
                    System.out.printf("Get %d logGroup from logstore:%s:\tShard:%d\n", logGroups.size(), logStore, shardId);

                    // Move the cursor after you process the pulled logs.
                    cursorMap.put(shardId, response.getNextCursor());
                }
            }
        } catch (LogException e) {
            System.out.println("error code :" + e.GetErrorCode());
            System.out.println("error message :" + e.GetErrorMessage());
            throw e;
        }
    }
}

Get 41 logGroup from logstore:test-logstore:	Shard:0
Get 49 logGroup from logstore:test-logstore:	Shard:1
Get 43 logGroup from logstore:test-logstore:	Shard:0
Get 39 logGroup from logstore:test-logstore:	Shard:1
... ...

pip install -U aliyun-log-python-sdk

# encoding: utf-8

import time
import os
from aliyun.log import *

def main():
    # The endpoint of Simple Log Service. This example uses the China (Hangzhou) region. Replace it with the endpoint of your region.
    endpoint = 'cn-hangzhou.log.aliyuncs.com'
    # This example obtains the AccessKey ID and AccessKey secret from environment variables.
    access_key_id = os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_ID', '')
    access_key = os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_SECRET', '')
    # The project name. Replace it with your actual project name.
    project_name = 'ali-project-test'
    # The Logstore name. Replace it with your actual Logstore name.
    logstore_name = 'test-logstore'
    # The ID of the Consume Processor.
    processor = "processor-test"
    init_cursor = 'end'
    log_group_count = 10

    # Create a Simple Log Service client.
    client = LogClient(endpoint, access_key_id, access_key)

    cursor_map = {}
    # List the shards of the logstore.
    res = client.list_shards(project_name, logstore_name)
    res.log_print()
    shards = res.shards

    # Get the initial cursor.
    for shard in shards:
        shard_id = shard.get('shardID')
        res = client.get_cursor(project_name, logstore_name, shard_id, init_cursor)
        cursor_map[shard_id] = res.get_cursor()

    # Read data from each shard in a loop.
    while True:
        for shard in shards:
            shard_id = shard.get('shardID')
            res = client.pull_logs(project_name, logstore_name, shard_id, cursor_map.get(shard_id), log_group_count,
                                   processor=processor)
            res.log_print()
            if cursor_map[shard_id] == res.next_cursor:
                # only for debug
                time.sleep(3)
            else:
                cursor_map[shard_id] = res.next_cursor

if __name__ == '__main__':
    main()

ListShardResponse:
headers: {'Server': 'AliyunSLS', 'Content-Type': 'application/json', 'Content-Length': '335', 'Connection': 'keep-alive', 'Access-Control-Allow-Origin': '*', 'Date': 'Wed, 26 Feb 2025 09:46:17 GMT', 'x-log-time': '1740563177', 'x-log-requestid': '67BEE2E9132069E22A1F967D'}
res: [{'shardID': 0, 'status': 'readwrite', 'inclusiveBeginKey': '00000000000000000000000000000000', 'exclusiveEndKey': '80000000000000000000000000000000', 'createTime': 1737010019}, {'shardID': 1, 'status': 'readwrite', 'inclusiveBeginKey': '80000000000000000000000000000000', 'exclusiveEndKey': 'ffffffffffffffffffffffffffffffff', 'createTime': 1737010019}]
PullLogResponse
next_cursor MTczNz********c3ODgyMjQ0MQ==
log_count 0
headers: {'Server': 'AliyunSLS', 'Content-Type': 'application/x-protobuf', 'Content-Length': '1', 'Connection': 'keep-alive', 'Access-Control-Allow-Origin': '*', 'Date': 'Wed, 26 Feb 2025 09:46:17 GMT', 'x-log-cursor-time': '0', 'x-log-end-of-cursor': '1', 'x-log-failedlines': '0', 'x-log-rawdatacount': '0', 'x-log-rawdatalines': '0', 'x-log-rawdatasize': '0', 'x-log-read-last-cursor': '0', 'x-log-resultlines': '0', 'x-log-time': '1740563177', 'x-log-bodyrawsize': '0', 'x-log-compresstype': 'gzip', 'x-log-count': '0', 'x-log-cursor': 'MTczNzAx********ODgyMjQ0MQ==', 'x-log-requestid': '67BEE2E974CA9ABCE7DDC7D6'}
detail: []
PullLogResponse
next_cursor MTczNz********c3OTg5NzE3NA==
log_count 0
headers: {'Server': 'AliyunSLS', 'Content-Type': 'application/x-protobuf', 'Content-Length': '1', 'Connection': 'keep-alive', 'Access-Control-Allow-Origin': '*', 'Date': 'Wed, 26 Feb 2025 09:46:21 GMT', 'x-log-cursor-time': '0', 'x-log-end-of-cursor': '1', 'x-log-failedlines': '0', 'x-log-rawdatacount': '0', 'x-log-rawdatalines': '0', 'x-log-rawdatasize': '0', 'x-log-read-last-cursor': '0', 'x-log-resultlines': '0', 'x-log-time': '1740563181', 'x-log-bodyrawsize': '0', 'x-log-compresstype': 'gzip', 'x-log-count': '0', 'x-log-cursor': 'MTczNzAx********OTg5NzE3NA==', 'x-log-requestid': '67BEE2EDF2B58CF1756526EF'}
detail: []
PullLogResponse
... ...

go get -u github.com/aliyun/aliyun-log-go-sdk

package main

import (
	"fmt"
	"os"
	"time"

	sls "github.com/aliyun/aliyun-log-go-sdk"
)

func main() {
	client := &sls.Client{
		AccessKeyID:     os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_ID"),
		AccessKeySecret: os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"),
		Endpoint:        "cn-chengdu.log.aliyuncs.com",
	}

	project := "ali-project-test"
	logstore := "test-logstore"
	initCursor := "end"
    // The ID of the Consume Processor.
	consumeProcessor := "ali-test-consume-processor"
	shards, err := client.ListShards(project, logstore)
	if err != nil {
		fmt.Println("ListShards error", err)
		return
	}

	shardCursorMap := map[int]string{}
	for _, shard := range shards {
		cursor, err := client.GetCursor(project, logstore, shard.ShardID, initCursor)
		if err != nil {
			fmt.Println("GetCursor error", shard.ShardID, err)
			return
		}
		shardCursorMap[shard.ShardID] = cursor
	}

	for {
		for _, shard := range shards {
			pullLogRequest := &sls.PullLogRequest{
				Project:          project,
				Logstore:         logstore,
				ShardID:          shard.ShardID,
				LogGroupMaxCount: 10,
				Processor:        consumeProcessor,
				Cursor:           shardCursorMap[shard.ShardID],
			  }
			lg, nextCursor, err := client.PullLogsV2(pullLogRequest)
			fmt.Println("shard: ", shard.ShardID, "loggroups: ", len(lg.LogGroups), "nextCursor: ", nextCursor)
			if err != nil {
				fmt.Println("PullLogsV2 error", shard.ShardID, err)
				return
			}
			shardCursorMap[shard.ShardID] = nextCursor
			if len(lg.LogGroups) == 0 {
				// only for debug
				time.Sleep(time.Duration(3) * time.Second)
			}
		}
	}
}

shard:  0 loggroups:  41 nextCursor:  MTY5Mz*******TIxNjcxMDcwMQ==
shard:  1 loggroups:  49 nextCursor:  MTY5Mz*******DYwNDIyNDQ2Mw==
shard:  0 loggroups:  43 nextCursor:  MTY5Mz*******TIxNjcxMDcwMQ==
shard:  1 loggroups:  39 nextCursor:  MTY5Mz*******DYwNDIyNDQ2Mw==
... ...