ExecuteEnv.java

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.service;

import org.apache.doris.common.Config;
import org.apache.doris.common.io.DiskUtils;
import org.apache.doris.qe.ConnectScheduler;
import org.apache.doris.qe.MultiLoadMgr;

import com.google.common.base.Strings;

import java.util.ArrayList;
import java.util.List;

// Execute environment, used to save other module, need to singleton
public class ExecuteEnv {
    private static volatile ExecuteEnv INSTANCE;
    private MultiLoadMgr multiLoadMgr;
    private ConnectScheduler scheduler;
    private long startupTime;
    private long processUUID;

    private List<FeDiskInfo> diskInfos;

    private ExecuteEnv() {
        multiLoadMgr = new MultiLoadMgr();
        scheduler = new ConnectScheduler(Config.qe_max_connection, Config.arrow_flight_max_connections);
        startupTime = System.currentTimeMillis();
        processUUID = System.currentTimeMillis();
        String logDir = Strings.isNullOrEmpty(Config.sys_log_dir) ? System.getenv("LOG_DIR") :
                Config.sys_log_dir;
        diskInfos = new ArrayList<FeDiskInfo>() {{
                add(new FeDiskInfo("meta", Config.meta_dir, DiskUtils.df(Config.meta_dir)));
                add(new FeDiskInfo("log", logDir, DiskUtils.df(logDir)));
                add(new FeDiskInfo("audit-log", Config.audit_log_dir, DiskUtils.df(Config.audit_log_dir)));
                add(new FeDiskInfo("temp", Config.tmp_dir, DiskUtils.df(Config.tmp_dir)));
                add(new FeDiskInfo("deploy", System.getenv("DORIS_HOME"), DiskUtils.df(System.getenv("DORIS_HOME"))));
            }};
    }

    public static ExecuteEnv getInstance() {
        if (INSTANCE == null) {
            synchronized (ExecuteEnv.class) {
                if (INSTANCE == null) {
                    INSTANCE = new ExecuteEnv();
                }
            }
        }
        return INSTANCE;
    }

    public ConnectScheduler getScheduler() {
        return scheduler;
    }

    public MultiLoadMgr getMultiLoadMgr() {
        return multiLoadMgr;
    }

    public long getStartupTime() {
        return startupTime;
    }

    public long getProcessUUID() {
        return processUUID;
    }

    public List<FeDiskInfo> getDiskInfos() {
        return this.diskInfos;
    }

    public List<FeDiskInfo> refreshAndGetDiskInfo(boolean refresh) {
        for (FeDiskInfo disk : diskInfos) {
            DiskUtils.Df df = DiskUtils.df(disk.getDir());
            if (df != null) {
                disk.setSpaceInfo(df);
            }
        }
        return diskInfos;
    }
}