speech: move samples out of branch (#2324)

speech/beta/src/main/java/com/example/speech/SpeechAdaptation.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License 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.example.speech;
+
+// [START speech_adaptation_beta]
+import com.google.cloud.speech.v1p1beta1.RecognitionAudio;
+import com.google.cloud.speech.v1p1beta1.RecognitionConfig;
+import com.google.cloud.speech.v1p1beta1.RecognizeRequest;
+import com.google.cloud.speech.v1p1beta1.RecognizeResponse;
+import com.google.cloud.speech.v1p1beta1.SpeechClient;
+import com.google.cloud.speech.v1p1beta1.SpeechContext;
+import com.google.cloud.speech.v1p1beta1.SpeechRecognitionAlternative;
+import com.google.cloud.speech.v1p1beta1.SpeechRecognitionResult;
+
+import java.io.IOException;
+
+public class SpeechAdaptation {
+
+  public void speechAdaptation() throws IOException {
+    String uriPath = "gs://cloud-samples-data/speech/brooklyn_bridge.mp3";
+    speechAdaptation(uriPath);
+  }
+
+  public static void speechAdaptation(String uriPath) throws IOException {
+    // Initialize client that will be used to send requests. This client only needs to be created
+    // once, and can be reused for multiple requests. After completing all of your requests, call
+    // the "close" method on the client to safely clean up any remaining background resources.
+    try (SpeechClient speechClient = SpeechClient.create()) {
+
+      // Provides "hints" to the speech recognizer to favor specific words and phrases in the
+      // results.
+      // https://cloud.google.com/speech-to-text/docs/reference/rpc/google.cloud.speech.v1p1beta1#google.cloud.speech.v1p1beta1.SpeechContext
+      SpeechContext speechContext =
+          SpeechContext.newBuilder().addPhrases("Brooklyn Bridge").setBoost(20.0F).build();
+      // Configure recognition config to match your audio file.
+      RecognitionConfig config =
+          RecognitionConfig.newBuilder()
+              .setEncoding(RecognitionConfig.AudioEncoding.MP3)
+              .setSampleRateHertz(44100)
+              .setLanguageCode("en-US")
+              .addSpeechContexts(speechContext)
+              .build();
+      // Set the path to your audio file
+      RecognitionAudio audio = RecognitionAudio.newBuilder().setUri(uriPath).build();
+
+      // Make the request
+      RecognizeRequest request =
+          RecognizeRequest.newBuilder().setConfig(config).setAudio(audio).build();
+
+      // Display the results
+      RecognizeResponse response = speechClient.recognize(request);
+      for (SpeechRecognitionResult result : response.getResultsList()) {
+        // First alternative is the most probable result
+        SpeechRecognitionAlternative alternative = result.getAlternativesList().get(0);
+        System.out.printf("Transcript: %s\n", alternative.getTranscript());
+      }
+    }
+  }
+}
+// [END speech_adaptation_beta]

speech/beta/src/test/java/com/example/speech/SpeechAdaptationTest.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License 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.example.speech;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+@RunWith(JUnit4.class)
+@SuppressWarnings("checkstyle:abbreviationaswordinname")
+public class SpeechAdaptationTest {
+  private static final String AUDIO_FILE = "gs://cloud-samples-data/speech/brooklyn_bridge.mp3";
+  private ByteArrayOutputStream bout;
+  private PrintStream out;
+
+  @Before
+  public void setUp() {
+    bout = new ByteArrayOutputStream();
+    out = new PrintStream(bout);
+    System.setOut(out);
+  }
+
+  @After
+  public void tearDown() {
+    System.setOut(null);
+  }
+
+  @Test
+  public void testTranscribeContextClasses() throws IOException {
+    SpeechAdaptation.speechAdaptation(AUDIO_FILE);
+    String got = bout.toString();
+    assertThat(got).contains("Transcript:");
+  }
+}