/*
* Copyright 2010-2012 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws.demo.s3uploader;
import java.net.URL;
import java.util.Date;
import com.amazonaws.demo.s3uploader.R;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.GeneratePresignedUrlRequest;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.amazonaws.services.s3.model.ResponseHeaderOverrides;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
public class S3UploaderActivity extends Activity {
private AmazonS3Client s3Client = new AmazonS3Client(
new BasicAWSCredentials(Constants.ACCESS_KEY_ID,
Constants.SECRET_KEY));
private Button selectPhoto = null;
private Button showInBrowser = null;
private static final int PHOTO_SELECTED = 1;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
selectPhoto = (Button) findViewById(R.id.select_photo_button);
selectPhoto.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Start the image picker.
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, PHOTO_SELECTED);
}
});
showInBrowser = (Button) findViewById(R.id.show_in_browser_button);
showInBrowser.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
new S3GeneratePresignedUrlTask().execute();
}
});
}
// This method is automatically called by the image picker when an image is
// selected.
protected void onActivityResult(int requestCode, int resultCode,
Intent imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch (requestCode) {
case PHOTO_SELECTED:
if (resultCode == RESULT_OK) {
Uri selectedImage = imageReturnedIntent.getData();
new S3PutObjectTask().execute(selectedImage);
}
}
}
// Display an Alert message for an error or failure.
protected void displayAlert(String title, String message) {
AlertDialog.Builder confirm = new AlertDialog.Builder(this);
confirm.setTitle(title);
confirm.setMessage(message);
confirm.setNegativeButton(
S3UploaderActivity.this.getString(R.string.ok),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
confirm.show().show();
}
protected void displayErrorAlert(String title, String message) {
AlertDialog.Builder confirm = new AlertDialog.Builder(this);
confirm.setTitle(title);
confirm.setMessage(message);
confirm.setNegativeButton(
S3UploaderActivity.this.getString(R.string.ok),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
S3UploaderActivity.this.finish();
}
});
confirm.show().show();
}
private class S3PutObjectTask extends AsyncTask<Uri, Void, S3TaskResult> {
ProgressDialog dialog;
protected void onPreExecute() {
dialog = new ProgressDialog(S3UploaderActivity.this);
dialog.setMessage(S3UploaderActivity.this
.getString(R.string.uploading));
dialog.setCancelable(false);
dialog.show();
}
protected S3TaskResult doInBackground(Uri... uris) {
if (uris == null || uris.length != 1) {
return null;
}
// The file location of the image selected.
Uri selectedImage = uris[0];
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String filePath = cursor.getString(columnIndex);
cursor.close();
S3TaskResult result = new S3TaskResult();
// Put the image data into S3.
try {
s3Client.createBucket(Constants.getPictureBucket());
// Content type is determined by file extension.
PutObjectRequest por = new PutObjectRequest(
Constants.getPictureBucket(), Constants.PICTURE_NAME,
new java.io.File(filePath));
s3Client.putObject(por);
} catch (Exception exception) {
result.setErrorMessage(exception.getMessage());
}
return result;
}
protected void onPostExecute(S3TaskResult result) {
dialog.dismiss();
if (result.getErrorMessage() != null) {
displayErrorAlert(
S3UploaderActivity.this
.getString(R.string.upload_failure_title),
result.getErrorMessage());
}
}
}
private class S3GeneratePresignedUrlTask extends
AsyncTask<Void, Void, S3TaskResult> {
protected S3TaskResult doInBackground(Void... voids) {
S3TaskResult result = new S3TaskResult();
try {
// Ensure that the image will be treated as such.
ResponseHeaderOverrides override = new ResponseHeaderOverrides();
override.setContentType("image/jpeg");
// Generate the presigned URL.
// Added an hour's worth of milliseconds to the current time.
Date expirationDate = new Date(
System.currentTimeMillis() + 3600000);
GeneratePresignedUrlRequest urlRequest = new GeneratePresignedUrlRequest(
Constants.getPictureBucket(), Constants.PICTURE_NAME);
urlRequest.setExpiration(expirationDate);
urlRequest.setResponseHeaders(override);
URL url = s3Client.generatePresignedUrl(urlRequest);
result.setUri(Uri.parse(url.toURI().toString()));
} catch (Exception exception) {
result.setErrorMessage(exception.getMessage());
}
return result;
}
protected void onPostExecute(S3TaskResult result) {
if (result.getErrorMessage() != null) {
displayErrorAlert(
S3UploaderActivity.this
.getString(R.string.browser_failure_title),
result.getErrorMessage());
} else if (result.getUri() != null) {
// Display in Browser.
startActivity(new Intent(Intent.ACTION_VIEW, result.getUri()));
}
}
}
private class S3TaskResult {
String errorMessage = null;
Uri uri = null;
public String getErrorMessage() {
return errorMessage;
}
public void setErrorMessage(String errorMessage) {
this.errorMessage = errorMessage;
}
public Uri getUri() {
return uri;
}
public void setUri(Uri uri) {
this.uri = uri;
}
}
}