com.tvd12.ezyhttp.server.management.MetricsController Maven / Gradle / Ivy

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Provider managment APIs for ezyhttp server
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package com.tvd12.ezyhttp.server.management;

import com.tvd12.ezyfox.annotation.EzyFeature;
import com.tvd12.ezyfox.monitor.EzyCpuMonitor;
import com.tvd12.ezyfox.monitor.EzyGcMonitor;
import com.tvd12.ezyfox.monitor.EzyMemoryMonitor;
import com.tvd12.ezyfox.monitor.EzyThreadsMonitor;
import com.tvd12.ezyfox.monitor.data.EzyThreadsDetail;
import com.tvd12.ezyhttp.server.core.annotation.Api;
import com.tvd12.ezyhttp.server.core.annotation.Authenticated;
import com.tvd12.ezyhttp.server.core.annotation.Controller;
import com.tvd12.ezyhttp.server.core.annotation.DoGet;
import com.tvd12.ezyhttp.server.core.handler.ManagementController;
import com.tvd12.ezyhttp.server.management.data.CpuPoint;
import com.tvd12.ezyhttp.server.management.data.DiskPoint;
import com.tvd12.ezyhttp.server.management.data.MemoryPoint;
import com.tvd12.ezyhttp.server.management.data.ThreadCountPoint;
import com.tvd12.ezyhttp.server.management.monitor.SystemMonitor;

import java.io.File;

import static com.tvd12.ezyhttp.server.management.constant.ManagementConstants.DEFAULT_FEATURE_NAME;

@Api
@Authenticated
@Controller
public class MetricsController implements ManagementController {

    private final long startTime = System.currentTimeMillis();

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/start-time")
    public long getStartTime() {
        return startTime;
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/live-time")
    public long getLiveTime() {
        long current = System.currentTimeMillis();
        return (current - startTime) / 1000;
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/active-threads")
    public EzyThreadsDetail activeThreadsGet() {
        return SystemMonitor.getInstance()
            .getThreadsMonitor()
            .getThreadsDetails();
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/thread-count")
    public ThreadCountPoint threadsGet() {
        EzyThreadsMonitor threadsMonitor = SystemMonitor.getInstance()
            .getThreadsMonitor();
        int threadCount = threadsMonitor.getThreadCount();
        int daemonThreadCount = threadsMonitor.getDaemonThreadCount();
        return ThreadCountPoint.builder()
            .threadCount(threadCount)
            .daemonThreadCount(daemonThreadCount)
            .build();
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/cpu-usage")
    public CpuPoint cpuUsageGet() {
        SystemMonitor monitor = SystemMonitor.getInstance();
        EzyGcMonitor gcMonitor = monitor.getGcMonitor();
        EzyCpuMonitor cpuMonitor = monitor.getCpuMonitor();
        return CpuPoint.builder()
            .systemCpuLoad(cpuMonitor.getSystemCpuLoad())
            .processCpuLoad(cpuMonitor.getProcessCpuLoad())
            .processGcActivity(gcMonitor.getProcessGcActivity())
            .build();
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/memory-usage")
    public MemoryPoint memoryUsageGet() {
        EzyMemoryMonitor memoryMonitor = SystemMonitor.getInstance()
            .getMemoryMonitor();
        return MemoryPoint.builder()
            .maxMemory(memoryMonitor.getMaxMemory())
            .freeMemory(memoryMonitor.getFreeMemory())
            .totalMemory(memoryMonitor.getTotalMemory())
            .build();
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/disk-space")
    public DiskPoint freeDiskSpaceGet() {
        File file = new File("/");
        return DiskPoint.builder()
            .freeSpace(file.getFreeSpace())
            .totalSpace(file.getTotalSpace())
            .usableSpace(file.getUsableSpace())
            .build();
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/total-request")
    public long totalRequestGet() {
        return SystemMonitor.getInstance().getRequestCount();
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/request-per-second")
    public long requestPerSecondGet() {
        return SystemMonitor.getInstance().getRequestPerSecond();
    }

    @EzyFeature(DEFAULT_FEATURE_NAME)
    @DoGet("/management/response-per-second")
    public long responsePerSecondGet() {
        return SystemMonitor.getInstance().getRequestPerSecond();
    }
}