public static void main()

in code_examples/java_examples/image/java-detect-faces.java [23:62]

• 30 lines of code
• 4 McCabe index (conditional complexity)

   public static void main(String[] args) throws Exception {

      String photo = "input.jpg";
      String bucket = "bucket";

      AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient();


      DetectFacesRequest request = new DetectFacesRequest()
         .withImage(new Image()
            .withS3Object(new S3Object()
               .withName(photo)
               .withBucket(bucket)))
         .withAttributes(Attribute.ALL);
      // Replace Attribute.ALL with Attribute.DEFAULT to get default values.

      try {
         DetectFacesResult result = rekognitionClient.detectFaces(request);
         List < FaceDetail > faceDetails = result.getFaceDetails();

         for (FaceDetail face: faceDetails) {
            if (request.getAttributes().contains("ALL")) {
               AgeRange ageRange = face.getAgeRange();
               System.out.println("The detected face is estimated to be between "
                  + ageRange.getLow().toString() + " and " + ageRange.getHigh().toString()
                  + " years old.");
               System.out.println("Here's the complete set of attributes:");
            } else { // non-default attributes have null values.
               System.out.println("Here's the default set of attributes:");
            }

            ObjectMapper objectMapper = new ObjectMapper();
            System.out.println(objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(face));
         }

      } catch (AmazonRekognitionException e) {
         e.printStackTrace();
      }

   }