TTS Synthesize using POST, fixes #635 and #602

Author: germanattanasio

text-to-speech/src/main/java/com/ibm/watson/developer_cloud/text_to_speech/v1/TextToSpeech.java

@@ -18,6 +18,7 @@
 import java.util.List;
 
 import com.google.gson.Gson;
+import com.google.gson.JsonObject;
 import com.google.gson.reflect.TypeToken;
 import com.ibm.watson.developer_cloud.http.HttpMediaType;
 import com.ibm.watson.developer_cloud.http.RequestBuilder;
@@ -216,9 +217,12 @@ public ServiceCall<InputStream> synthesize(final String text, final Voice voice,
     Validator.isTrue((text != null) && !text.isEmpty(), "text cannot be null or empty");
     Validator.isTrue(voice != null, "voice cannot be null or empty");
 
-    String modifiedText = text.replace(";", "%3B");
-    final RequestBuilder request = RequestBuilder.get(PATH_SYNTHESIZE);
-    request.query(TEXT, modifiedText);
+    final RequestBuilder request = RequestBuilder.post(PATH_SYNTHESIZE);
+
+    JsonObject jsonText = new JsonObject();
+    jsonText.addProperty(TEXT, text);
+    request.bodyJson(jsonText);
+    
     request.query(VOICE, voice.getName());
     request.query(ACCEPT, audioFormat != null ? audioFormat : AudioFormat.WAV);
 

text-to-speech/src/test/java/com/ibm/watson/developer_cloud/text_to_speech/v1/TextToSpeechIT.java

@@ -102,7 +102,7 @@ public void testGetVoice() {
    */
   @Test
   public void testSynthesize() throws IOException {
-    String text = "This is an integration test";
+    String text = "This is an integration test; 1,2 !, @, #, $, %, ^, 20.";
     InputStream result = service.synthesize(text, Voice.EN_LISA, AudioFormat.WAV).execute();
     writeInputStreamToFile(result, File.createTempFile("tts-audio", "wav"));
   }

text-to-speech/src/test/java/com/ibm/watson/developer_cloud/text_to_speech/v1/TextToSpeechTest.java

@@ -196,10 +196,9 @@ public void testSynthesize() throws IOException, InterruptedException {
         service.synthesize(text, Voice.EN_LISA, new AudioFormat(HttpMediaType.AUDIO_PCM + "; rate=16000")).execute();
     final RecordedRequest request = server.takeRequest();
     final HttpUrl requestUrl = HttpUrl.parse("http://www.example.com" + request.getPath());
-    String modifiedText = text.replace(";", "%3B");
 
+    assertEquals(request.getBody().readUtf8(),"{\"text\":\""+text+"\"}");
     assertEquals(SYNTHESIZE_PATH, requestUrl.encodedPath());
-    assertEquals(modifiedText, requestUrl.queryParameter("text"));
     assertEquals(Voice.EN_LISA.getName(), requestUrl.queryParameter("voice"));
     assertEquals(HttpMediaType.AUDIO_PCM + "; rate=16000", requestUrl.queryParameter("accept"));
     assertNotNull(in);