com.github.shoothzj.test.zookeeper.ZkUtil Maven / Gradle / Ivy

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package com.github.shoothzj.test.zookeeper;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;

public class ZkUtil {
    private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(ZkUtil.class);

    public static List getZkStats(String host, int port) throws Exception {
        Socket sock = new Socket(host, port);
        BufferedReader reader = null;
        try {
            OutputStream outStream = sock.getOutputStream();
            outStream.write("stat".getBytes(StandardCharsets.UTF_8));
            outStream.flush();
            reader = new BufferedReader(new InputStreamReader(sock.getInputStream()));
            List res = new ArrayList<>();
            while (true) {
                String line = reader.readLine();
                if (line == null) {
                    break;
                }
                res.add(line);
            }
            return res;
        } finally {
            sock.close();
            if (reader != null) {
                reader.close();
            }
        }
    }
}