import java.io.File;
import java.util.*;

public class DirectoryStructureCopy{
	private String source;
	private String target;
	
	public DirectoryStructureCopy(String source, String target){
		this.source = source;
		this.target = target;
	}
	
	public List<File> getDirectory(File sourceFile){
		List<File> result = new ArrayList<File>();
		//System.out.println(sourceFile.getPath()+" is Directory :"+ sourceFile.isDirectory());
		if(sourceFile.isDirectory()){
			File[] dirFiles = sourceFile.listFiles();
			for(int i=0; i < dirFiles.length; i++){
				if(dirFiles[i].isDirectory()){
					result.add(dirFiles[i]);
					result.addAll(getDirectory(dirFiles[i]));
				}
			}
		}
		
		return result;
	}
	
	public void copyFile(List<File> sourceDirectory, File targetDirectory, String sourceURL){
		if(targetDirectory.isDirectory()){
			for(File file:sourceDirectory){
				String path = file.getAbsolutePath();
				path = path.replace(sourceURL, targetDirectory.getAbsolutePath());
				File newFile = new File(path);
				if((newFile.exists() && newFile.isFile()) || !newFile.exists()){
					newFile.mkdir();
				}
			}
		}
	}
	
	public void directoryCopy(){
		List<File> copyLists= getDirectory(new File(this.source));
		System.out.println("find Directory:");
		for(File file:  copyLists){
			System.out.println(file.getAbsolutePath());
		}
		copyFile(copyLists,new File(this.target), this.source);
	}
	
	
	public static void main(String [] args){
		String sourceURL = args[0];
		String targetURL = args[1];
		DirectoryStructureCopy copyObj = new DirectoryStructureCopy(sourceURL, targetURL);
		copyObj.directoryCopy();
	}
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
}