import java.io.*;
import java.util.*;
import java.net.*;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.PropertiesCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.GetObjectRequest;
import com.amazonaws.services.s3.model.ListObjectsRequest;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.amazonaws.services.s3.model.Bucket;
import com.amazonaws.services.s3.model.S3Object;
import com.amazonaws.services.s3.model.ObjectListing;
import com.amazonaws.services.s3.model.S3ObjectSummary;
import com.amazonaws.auth.BasicAWSCredentials;
import org.apache.commons.codec.binary.Base64;

public class SampleS3 {
 public static void main(String[] args) throws IOException, java.net.URISyntaxException {
  System.out.println("Start of SampleS3.java\n");

	String accessKey="";
	String secretKey="";
	String key = "MyObjectKey";
	String bucketName = "";

try{  
         FileInputStream fis = new FileInputStream("SampleS3.properties");  
         Properties prop = new Properties();  
             prop.load(fis);  
             accessKey = prop.getProperty("accessKey");  
             secretKey = prop.getProperty("secretKey");   
             fis.close();  
      /* code to use values read from the file*/  
       }catch(Exception e){  
         System.out.println("Failed to read from SampleS3.properties file.");  
       }  

        AmazonS3 s3 = new AmazonS3Client(new BasicAWSCredentials(accessKey, secretKey));
        System.out.println("===========================================");
        System.out.println("Getting Started with Amazon S3");
        System.out.println("===========================================\n");
            /*
 *              * List the buckets in your account
 *                           */
            System.out.println("Listing buckets");
            for (Bucket bucket : s3.listBuckets()) {
                System.out.println(" - " + bucket.getName());
		bucketName = bucket.getName();
            }
            System.out.println();

	File f = new File("Dropbox");

		File[] files = f.listFiles();
		for (File file : files) {
			if (file.isDirectory()) {
			System.out.println("\nDirectory skipped = " + file.getCanonicalPath());
			// Skipping	
			} else {
			s3.putObject(new PutObjectRequest(bucketName, file.toString(), new File(file.toString())));
		System.out.println("\nFile copied = " + file.getCanonicalPath());		
		}
	}
 }
}