Utils.java

package org.sikuli.recorder;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class Utils {
	public static void stream2file(InputStream inputStream, File outFile) throws IOException {
		OutputStream out = new FileOutputStream(outFile);		
		int read = 0;
		byte[] bytes = new byte[1024];

		while ((read = inputStream.read(bytes)) != -1) {
			out.write(bytes, 0, read);
		}
	}



	public static File createTempDirectory() throws IOException{
		final File temp;

		temp = File.createTempFile("temp", Long.toString(System.nanoTime()));

		if(!(temp.delete())){
			throw new IOException("Could not delete temp file: " + temp.getAbsolutePath());
		}

		if(!(temp.mkdir())){
			throw new IOException("Could not create temp directory: " + temp.getAbsolutePath());
		}

		return (temp);
	}


	public static void deleteFilesInFolder(File folder){
		File[] files = folder.listFiles();
		if(files!=null) { //some JVMs return null for empty dirs
			for(File f: files) {
				if(f.isDirectory()) {
					deleteFolder(f);
				} else {
					f.delete();
				}
			}
		}
	}
	
	public static void deleteFolder(File folder) {
		File[] files = folder.listFiles();
		if(files!=null) { //some JVMs return null for empty dirs
			for(File f: files) {
				if(f.isDirectory()) {
					deleteFolder(f);
				} else {
					f.delete();
				}
			}
		}
		folder.delete();
	}


	public static void copyFolder(File src, File dest)
			throws IOException{

		if(src.isDirectory()){

			//if directory not exists, create it
			if(!dest.exists()){
				dest.mkdir();
				//System.out.println("Directory copied from " 
				//		+ src + "  to " + dest);
			}

			//list all the directory contents
			String files[] = src.list();

			for (String file : files) {
				//construct the src and dest file structure
				File srcFile = new File(src, file);
				File destFile = new File(dest, file);
				//recursive copy
				copyFolder(srcFile,destFile);
			}

		}else{
			//if file, then copy it
			//Use bytes stream to support all file types
			InputStream in = new FileInputStream(src);
			OutputStream out = new FileOutputStream(dest); 

			byte[] buffer = new byte[1024];

			int length;
			//copy the file content in bytes 
			while ((length = in.read(buffer)) > 0){
				out.write(buffer, 0, length);
			}

			in.close();
			out.close();
			//System.out.println("File copied from " + src + " to " + dest);
		}
	}
}