DiskUsageMonitor

DiskUsageMonitor

import java.io.File;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;

public class DiskUsageMonitor {

    public List<DiskUsage> getDiskUsage() {
        List<DiskUsage> diskUsages = new ArrayList<>();

        // 모든 파일시스템 root 가져오기
        File[] roots = File.listRoots();

        for (File root : roots) {
            DiskUsage usage = new DiskUsage();
            usage.setPath(root.getAbsolutePath());
            usage.setTotalSpace(formatSize(root.getTotalSpace()));
            usage.setUsableSpace(formatSize(root.getUsableSpace()));
            usage.setUsedSpace(formatSize(root.getTotalSpace() - root.getUsableSpace()));
            usage.setUsagePercentage(calculateUsagePercentage(root));

            diskUsages.add(usage);
        }

        return diskUsages;
    }

    private String formatSize(long size) {
        if (size <= 0) return "0";
        final String[] units = new String[] { "B", "KB", "MB", "GB", "TB" };
        int digitGroups = (int) (Math.log10(size) / Math.log10(1024));
        return new DecimalFormat("#,##0.#").format(size / Math.pow(1024, digitGroups))
                + " " + units[digitGroups];
    }

    private double calculateUsagePercentage(File root) {
        long total = root.getTotalSpace();
        long free = root.getUsableSpace();
        if (total == 0) return 0.0;
        return ((double) (total - free) / total) * 100;
    }
}

class DiskUsage {
    private String path;
    private String totalSpace;
    private String usableSpace;
    private String usedSpace;
    private double usagePercentage;

    // Getters and Setters
    public String getPath() { return path; }
    public void setPath(String path) { this.path = path; }

    public String getTotalSpace() { return totalSpace; }
    public void setTotalSpace(String totalSpace) { this.totalSpace = totalSpace; }

    public String getUsableSpace() { return usableSpace; }
    public void setUsableSpace(String usableSpace) { this.usableSpace = usableSpace; }

    public String getUsedSpace() { return usedSpace; }
    public void setUsedSpace(String usedSpace) { this.usedSpace = usedSpace; }

    public double getUsagePercentage() { return usagePercentage; }
    public void setUsagePercentage(double usagePercentage) {
        this.usagePercentage = Math.round(usagePercentage * 100.0) / 100.0;
    }

    @Override
    public String toString() {
        return "DiskUsage{" +
                "path='" + path + '\'' +
                ", totalSpace='" + totalSpace + '\'' +
                ", usableSpace='" + usableSpace + '\'' +
                ", usedSpace='" + usedSpace + '\'' +
                ", usagePercentage=" + usagePercentage + '%' +
                '}';
    }
}