Upload an image from Android to Amazon S3?

Question

I need to upload a bitmap to Amazon S3. I have never used S3, and the docs are proving less than helpful as I can\'t see anything to cover this specific requirement. Unfortunate

Answer 1

you can use the below mentioned class to Upload data to amazon s3 buckets.

public class UploadAmazonS3{

private CognitoCachingCredentialsProvider credentialsProvider = null;
private AmazonS3Client s3Client = null;
private TransferUtility transferUtility = null;
private static UploadAmazonS3 uploadAmazonS3;

/**
 * Creating single tone object by defining private.
 * 

 *     At the time of creating
 * 
*/
private UploadAmazonS3(Context context, String canito_pool_id)
{
    /**
     * Creating the object of the getCredentialProvider object. */
    credentialsProvider=getCredentialProvider(context,canito_pool_id);
    /**
     * Creating the object  of the s3Client */
    s3Client=getS3Client(context,credentialsProvider);

    /**
     * Creating the object of the TransferUtility of the Amazone.*/
    transferUtility=getTransferUtility(context,s3Client);

}

public static UploadAmazonS3 getInstance(Context context, String canito_pool_id)
{
    if(uploadAmazonS3 ==null)
    {
        uploadAmazonS3 =new UploadAmazonS3(context,canito_pool_id);
        return uploadAmazonS3;
    }else
    {
        return uploadAmazonS3;
    }

}

/**
 * 
Upload_data
 * 

 *     Method is use to upload data in the amazone server.
 *
 * 
*/

public void uploadData(final String bukkate_name, final File file, final Upload_CallBack callBack)
{
    Utility.printLog("in amazon upload class uploadData "+file.getName());

    if(transferUtility!=null&&file!=null)
    {
        TransferObserver observer=transferUtility.upload(bukkate_name,file.getName(),file);
        observer.setTransferListener(new TransferListener()
        {
            @Override
            public void onStateChanged(int id, TransferState state)
            {
                if(state.equals(TransferState.COMPLETED))
                {
                    callBack.sucess(com.tarha_taxi.R.string.AMAZON_END_POINT_LINK+bukkate_name+"/"+file.getName());
                }
            }

            @Override
            public void onProgressChanged(int id, long bytesCurrent, long bytesTotal)
            {

            }
            @Override
            public void onError(int id, Exception ex)
            {
                callBack.error(id+":"+ex.toString());

            }
        });
    }else
    {
        callBack.error("Amamzones3 is not intialize or File is empty !");
    }
}

/**
 * This method is used to get the CredentialProvider and we provide only context as a parameter.
 * @param context Here, we are getting the context from calling Activity.*/
private CognitoCachingCredentialsProvider getCredentialProvider(Context context,String pool_id)
{
    if (credentialsProvider == null)
    {
        credentialsProvider = new CognitoCachingCredentialsProvider(
                context.getApplicationContext(),
                pool_id, // Identity Pool ID
                AMAZON_REGION // Region
        );
    }
    return credentialsProvider;
}

/**
 * This method is used to get the AmazonS3 Client
 * and we provide only context as a parameter.
 * and from here we are calling getCredentialProvider() function.
 * @param context Here, we are getting the context from calling Activity.*/
private AmazonS3Client getS3Client(Context context,CognitoCachingCredentialsProvider cognitoCachingCredentialsProvider)
{
    if (s3Client == null)
    {
        s3Client = new AmazonS3Client(cognitoCachingCredentialsProvider);
        s3Client.setRegion(Region.getRegion(AMAZON_REGION));
        s3Client.setEndpoint(context.getString(com.tarha_taxi.R.string.AMAZON_END_POINT_LINK));
    }
    return s3Client;
}

/**
 * This method is used to get the Transfer Utility
 * and we provide only context as a parameter.
 * and from here we are, calling getS3Client() function.
 * @param context Here, we are getting the context from calling Activity.*/
private TransferUtility getTransferUtility(Context context,AmazonS3Client amazonS3Client)
{
    if (transferUtility == null)
    {
        transferUtility = new TransferUtility(amazonS3Client,context.getApplicationContext());
    }
    return transferUtility;
}

/**
 * Interface for the sucess callback fro the Amazon uploading .
 * */
public interface Upload_CallBack
{
    /**
     *Method for sucess .
     * @param sucess it is true on sucess and false for falure.*/
    void sucess(String sucess);
    /**
     * Method for falure.
     * @param errormsg contains the error message.*/
    void error(String errormsg);

}

}

use the below method to access the above calss :

 private void uploadToAmazon() {
    dialogL.show();
    UploadAmazonS3 amazonS3 = UploadAmazonS3.getInstance(getActivity(), getString(R.string.AMAZON_POOL_ID));
    amazonS3.uploadData(getString(R.string.BUCKET_NAME), Utility.renameFile(VariableConstants.TEMP_PHOTO_FILE_NAME, phone.getText().toString().substring(1) + ".jpg"), new UploadAmazonS3.Upload_CallBack() {
        @Override
        public void sucess(String sucess) {
            if (Utility.isNetworkAvailable(getActivity())) {
                dialogL.dismiss();
                /**
                 * to set the image into image view and
                 * add the write the image in the file
                 */
                activity.user_image.setTag(setTarget(progress_bar));
                Picasso.with(getActivity()).load(getString(R.string.AMAZON_IMAGE_LINK) + phone.getText().toString().substring(1) + ".jpg").
                        networkPolicy(NetworkPolicy.NO_CACHE).memoryPolicy(MemoryPolicy.NO_CACHE).into((Target) activity.user_image.getTag());

                Utility.printLog("amazon upload success ");
                new BackgroundForUpdateProfile().execute();
            } else {
                dialogL.dismiss();
                Utility.showToast(getActivity(), getResources().getString(R.string.network_connection_fail));
            }
        }

        @Override
        public void error(String errormsg) {
            dialogL.dismiss();
            Utility.showToast(getActivity(), getResources().getString(R.string.network_connection_fail));
        }
    });
}