import java.io.File;

import java.io.IOException;

import java.nio.file.Files;

import java.util.HashMap;

import java.util.Map;

class FileMetricsCollector {

public static class FileMetrics {

public long fileSize;

public int fileCount;

public long lastModified;

public FileMetrics(long fileSize, int fileCount, long lastModified) {

this.fileSize = fileSize;

this.fileCount = fileCount;

this.lastModified = lastModified;

}

}

public static FileMetrics collectMetrics(String directoryPath) {

File directory = new File(directoryPath);

FileMetrics metrics = new FileMetrics(0, 0, 0);

if (!directory.exists()) {

System.err.println("Directory not found: " + directoryPath);

return metrics; // Return default metrics if directory doesn't exist

}

if (!directory.isDirectory()) {

System.err.println("Not a directory: " + directoryPath);

return metrics; // Return default metrics if it's not a directory

}

File[] files = directory.listFiles();

if (files == null) {

System.err.println("Failed to list files in: " + directoryPath);

return metrics; // Return default metrics if listing files fails

}

metrics.fileCount = files.length;

long totalSize = 0;

for (File file : files) {

if (file.isFile()) {

try {

totalSize += file.length();

} catch (IOException e) {

System.err.println("Error getting file size for " + file.getName() + ": " + e.getMessage());

//Handle the exception, perhaps log it, but continue to the next file

continue;

}

}

}

metrics.fileSize = totalSize;

metrics.lastModified = directory.lastModified();

return metrics;

}

public static void main(String[] args) {

// Example Usage:

String directoryPath = "./temp_files"; // Replace with your directory path

// Create a temporary directory for testing

File tempDir = new File(directoryPath);

if (!tempDir.exists()) {

tempDir.mkdir();

try {

Files.write(tempDir.toPath(), "test file".getBytes());

} catch (IOException e) {

System.err.println("Error creating test file: " + e.getMessage());

}

}

FileMetrics metrics = collectMetrics(directoryPath);

System.out.println("File Metrics:");

System.out.println("Total Files: " + metrics.fileCount);

System.out.println("Total Size: " + metrics.fileSize);

System.out.println("Last Modified: " + metrics.lastModified);

}

}