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How to attach custom/existing screenshot in allure report?

Generally, I am using below code to take a screenshot and attach in allure report :
#Attachment(value = "Page Screenshot", type = "image/png")
public static byte[] saveScreenshotPNG(WebDriver driver) {
return ((TakesScreenshot)driver).getScreenshotAs(OutputType.BYTES);
}
But now my need is I have already some screenshot on my desktop and want to attach it with an allure report. is that possible?

You can take the existing image and convert it to byte[]. getScreenshotAs() decodes the screenshot string so you might need to do it as well
Java
#Attachment(value = "Page Screenshot", type = "image/png")
public static byte[] saveScreenshotPNG(String path) {
File file = new File(path);
BufferedImage bufferedImage = ImageIO.read(file);
byte[] image = null;
try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
ImageIO.write(bufferedImage, "png", bos);
image = bos.toByteArray();
} catch (Exception e) { }
// if decoding is not necessary just return image
return image != null ? Base64.getMimeDecoder().decode(image) : null;
}
Python
with open(path, 'rb') as image:
file = image.read()
byte_array = bytearray(file)
allure.attach(byte_array, name="Screenshot", attachment_type=AttachmentType.PNG)

Skia error when trying to retrieve a bitmap downloaded from Google Sign-in

So, I am downloading the profile picture from the Google SIgn-in api and I save it to a hidden file. The problem is that when I try to retrieve it, it throws me: D/skia: --- Failed to create image decoder with message 'unimplemented'. However when I retrieve an image from FireBaseStorage and save that one to the hidden file I can retrieve it whithout any problems.
I tried BitmapFactory.decodeByteArray(), but then I had a message telling me skia wasn't able to decode the file and it returned null.
The method I use to retrieve the profile picture and call the method that will save the file
private void getUsersPic() {
Bitmap profilePic;
try {
InputStream in = new URL(AppData.getUser().getPicture()).openConnection().getInputStream();
profilePic = BitmapFactory.decodeStream(in);
int size = profilePic.getRowBytes()*profilePic.getHeight();
ByteBuffer b = ByteBuffer.allocate(size);
byte[] bytes = new byte[size];
profilePic.copyPixelsToBuffer(b);
b.position(0);
b.get(bytes, 0, bytes.length);
SaveBitmapToFile.saveBitmap(bytes , AppData.getUser().getName()+AppData.getUser().getLastName());
} catch(Exception e) {
System.out.println("Get profile pic: "+e.toString());
}
}
Save the file
public static void saveBitmap(byte[] bitmap, String key) {
String path = AppData.getAppContext().getFilesDir()+"/.image"+"/";
File fileDir = new File(path);
if(!fileDir.isDirectory())
fileDir.mkdirs();
try {
File bitmapDir = new File(fileDir+"/"+key);
bitmapDir.createNewFile();
FileOutputStream stream = new FileOutputStream(bitmapDir);
stream.write(bitmap);
stream.close();
} catch (IOException e) {
System.out.println("Problem creating file "+e.toString()+ " Directory: "+fileDir);
}
}
Retrieve and return a bitmap
public static Bitmap getBitmap(String key) {
File file = new File(AppData.getAppContext().getFilesDir()+"/.image/"+key);
try {
BufferedInputStream buf = new BufferedInputStream(new FileInputStream(file));
return BitmapFactory.decodeStream(buf);//BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
} catch(Exception e) {
System.out.println("Exception getting bitmap: "+e.toString());
return null;
}
}
The last method should return a Bitmap and it is doing it. It is just not working when the image comes from the Google Sign-in api.

As pskink said in the comment of the post, I had to use compress() instead of copyPixelToBuffer(). Here is my updated method:
private void getUsersPic() {
Bitmap profilePic;
try {
InputStream in = new URL(AppData.getUser().getPicture()).openConnection().getInputStream();
profilePic = BitmapFactory.decodeStream(in);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
profilePic.compress(Bitmap.CompressFormat.PNG, 100, stream);
SaveBitmapToFile.saveBitmap(stream.toByteArray() , AppData.getUser().getName()+AppData.getUser().getLastName());
} catch(Exception e) {
System.out.println("Get profile pic: "+e.toString());
}
}

Handling Images,Video and audio types using hbase

Anybody have any idea about,How to handle unstructured data like Audio,Video and Images using Hbase.I tried for this alot but i didn't get any idea.please any help is appreciated.

Option 1: convert image to byte array and you can prepare put request and insert to table. Similarly audio and video files also can be achieved.
See https://docs.oracle.com/javase/7/docs/api/javax/imageio/package-summary.html
import javax.imageio.ImageIO;
/* * Convert an image to a byte array
*/
private byte[] convertImageToByteArray (String ImageName)throws IOException {
byte[] imageInByte;
BufferedImage originalImage = ImageIO.read(new File(ImageName));
// convert BufferedImage to byte array
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(originalImage, "jpg", baos);
imageInByte = baos.toByteArray();
baos.close();
return imageInByte;
}
Option 2 : You can do that in below way using Apache commons lang API. probably this is best option than above which will be applicable to all objects including image/audio/video etc.. This can be used NOT ONLY for hbase you can save it in hdfs as well
See my answer for more details.
For ex : byte[] mediaInBytes = org.apache.commons.lang.SerializationUtils.serialize(Serializable obj)
for deserializing, you can do this static Object deserialize(byte[] objectData)
see the doc in above link..
Example usage of the SerializationUtils
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.commons.lang.SerializationUtils;
public class SerializationUtilsTest {
public static void main(String[] args) {
try {
// File to serialize object to it can be your image or any media file
String fileName = "testSerialization.ser";
// New file output stream for the file
FileOutputStream fos = new FileOutputStream(fileName);
// Serialize String
SerializationUtils.serialize("SERIALIZE THIS", fos);
fos.close();
// Open FileInputStream to the file
FileInputStream fis = new FileInputStream(fileName);
// Deserialize and cast into String
String ser = (String) SerializationUtils.deserialize(fis);
System.out.println(ser);
fis.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
Note :jar of apache commons lang always available in hadoop cluster.(not external dependency)

Decoding QRCode with zxing. Java

I generated a QRCode using zxing library.
QRCode qrcode = QRCode.from("Encoding string").withSize(17,17).to(ImageType.PNG);
ByteArrayOutputStream out = QRCode.from(output.toString()).withSize(10, 10).to(ImageType.PNG).stream();
FileOutputStream fout = new FileOutputStream(new File("D:\\QR_Code.JPG"));
fout.write(out.toByteArray());
fout.flush();
fout.close();
It works fine but now I want to decode generated QRCode. Is it possible to decode QRCode from an image with zxing? If so, can you give me a hint how to do it because I haven't found appropriate class or method. Thanks in advance.

Here is what you can do:
You'll need an instance of QRCodeReader to decode qrcode data from a BinaryBitmap
You need to instanciate a HybridBinarizer and pass it as a constructor argument to create your BinaryBitmap
The HybridBinarizer needs an instance of LuminanceSource
Take a look at BufferedImageLuminanceSource
Here is an example that would decode data from a buffered image:
public static String qrDecodeFromImage(BufferedImage img) {
if(img!=null) {
LuminanceSource bfImgLuminanceSource = new BufferedImageLuminanceSource(img);
BinaryBitmap binaryBmp = new BinaryBitmap(new HybridBinarizer(bfImgLuminanceSource));
QRCodeReader qrReader = new QRCodeReader();
Result result;
try {
result = qrReader.decode(binaryBmp);
return result.getText();
} catch (NotFoundException e) {} catch (ChecksumException e) {} catch (FormatException e) {}
}
return null;
}

You'll need to have the ZXing project included in your project(source, etc).
Then you can use all sorts of ZXing classes to performing decoding/encoding, etc:
Look into these classes: BinaryBitmap, QRCodeReader, ParsedResult, ResultParser and give this a try:
Bitmap b = ...;//TODO: create a bitmap from your source...
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(new RGBLuminanceSource(b)));
Result result = null;
QRCodeReader reader = new QRCodeReader();
try {
result = reader.decode(bitmap);
ParsedResult parsedResult = ResultParser.parseResult(result);
//TODO: use parsedResult
}
catch(OutOfMemoryError e) {
}
catch(Exception e) {
}

Converting base-64 string to image in pure java

I need to send pictures from raspberry pi (written in python) to server (in java). I have read that the easiest way is to encode image to base64 send it and decode on the server side.
Now I have a generated base64 txt file from png.
I need a program to decode it.
I have folder in which I have my base64 code(64kb in one line of txt file)
encoding program that looks like
import urllib
encoded = urllib.quote(open("/home/wojtek/Desktop/wideo/nazdjecia/test_image1.png", "rb").read().encode("base64"))
print encoded
f = open("path/obr.txt",'w')
f.write(encoded)
f.close()
print "done"
and program that looks like this
public class JavaApplication2 {
public static BufferedImage decodeToImage(String imageString)
{
BufferedImage image = null;
byte[] imageByte;
try
{
BASE64Decoder decoder = new BASE64Decoder();
imageByte = decoder.decodeBuffer(imageString);
ByteArrayInputStream bis = new ByteArrayInputStream(imageByte);
image = ImageIO.read(bis);
bis.close();
}
catch (Exception e)
{
e.printStackTrace();
}
return image;
}
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
try {
BufferedReader in = new BufferedReader(new FileReader("/filepath/obr.txt"));
String str;
str = in.readLine();
NewJFrame gui = new NewJFrame();
gui.setVisible(true);
BufferedImage im = decodeToImage(str);
ImageIcon ico = new ImageIcon(im);
gui.imgset(ico );
// str is one line of text; readLine() strips the newline character(s)
in.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
when I try to decode it with java it crashes
Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar
javax.imageio.IIOException: Error skipping PNG metadata at
com.sun.imageio.plugins.png.PNGImageReader.readMetadata(PNGImageReader.java:680)
at
com.sun.imageio.plugins.png.PNGImageReader.readImage(PNGImageReader.java:1229)
at
com.sun.imageio.plugins.png.PNGImageReader.read(PNGImageReader.java:1577)
at javax.imageio.ImageIO.read(ImageIO.java:1448) at
javax.imageio.ImageIO.read(ImageIO.java:1352) at
javaapplication2.JavaApplication2.decodeToImage(JavaApplication2.java:33)
at javaapplication2.JavaApplication2.main(JavaApplication2.java:55)
Caused by: java.io.EOFException at
javax.imageio.stream.ImageInputStreamImpl.readInt(ImageInputStreamImpl.java:251)
at
com.sun.imageio.plugins.png.PNGImageReader.readMetadata(PNGImageReader.java:666)
... 6 more java.lang.NullPointerException at
javax.swing.ImageIcon.(ImageIcon.java:228) at
javaapplication2.JavaApplication2.main(JavaApplication2.java:56)
what am I doing wrong... :(