chore: removed try/catch & added exceptions at method signature (#456)

Fixes #446  ☕️

Author: munkhuushmgl

video/src/main/java/beta/video/StreamingShotChangeDetection.java

@@ -28,16 +28,19 @@
 import com.google.cloud.videointelligence.v1p3beta1.StreamingVideoIntelligenceServiceClient;
 import com.google.cloud.videointelligence.v1p3beta1.VideoSegment;
 import com.google.protobuf.ByteString;
+import io.grpc.StatusRuntimeException;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Arrays;
+import java.util.concurrent.TimeoutException;
 
 class StreamingShotChangeDetection {
 
   // Perform streaming video detection for shot changes
-  static void streamingShotChangeDetection(String filePath) {
+  static void streamingShotChangeDetection(String filePath)
+      throws IOException, TimeoutException, StatusRuntimeException {
     // String filePath = "path_to_your_video_file";
 
     try (StreamingVideoIntelligenceServiceClient client =
@@ -92,8 +95,6 @@ static void streamingShotChangeDetection(String filePath) {
           System.out.format("Shot: %fs to %fs\n", startTimeOffset, endTimeOffset);
         }
       }
-    } catch (IOException e) {
-      e.printStackTrace();
     }
   }
 }

video/src/test/java/beta/video/StreamingShotChangeDetectionIT.java

@@ -18,18 +18,24 @@
 
 import static com.google.common.truth.Truth.assertThat;
 
+import io.grpc.StatusRuntimeException;
 import java.io.ByteArrayOutputStream;
+import java.io.IOException;
 import java.io.PrintStream;
+import java.util.concurrent.TimeoutException;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 
-/** Integration (system) tests for {@link StreamingShotChangeDetection}. */
+/**
+ * Integration (system) tests for {@link StreamingShotChangeDetection}.
+ */
 @RunWith(JUnit4.class)
 @SuppressWarnings("checkstyle:abbreviationaswordinname")
 public class StreamingShotChangeDetectionIT {
+
   private ByteArrayOutputStream bout;
   private PrintStream out;
   private PrintStream originalPrintStream;
@@ -50,7 +56,8 @@ public void tearDown() {
   }
 
   @Test
-  public void testStreamingShotChangeDetection() {
+  public void testStreamingShotChangeDetection()
+      throws IOException, TimeoutException, StatusRuntimeException {
     StreamingShotChangeDetection.streamingShotChangeDetection("resources/cat.mp4");
     String got = bout.toString();