com.att.api.speech.controller.TextToSpeechController.java Source code

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Here is the source code for com.att.api.speech.controller.TextToSpeechController.java

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/*
 * Copyright 2015 AT&T
 *
 * 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.att.api.speech.controller;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.codec.binary.Base64;
import org.json.JSONObject;

import com.att.api.controller.APIController;
import com.att.api.oauth.OAuthToken;
import com.att.api.speech.service.TtsService;

public class TextToSpeechController extends APIController {

    private static final long serialVersionUID = 161244360288778547L;

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        final JSONObject jresponse = new JSONObject();
        try {

            final OAuthToken token = this.getFileToken();
            final TtsService srvc = new TtsService(appConfig.getApiFQDN(), token);

            final String contentType = request.getParameter("contentType");
            final String plaintext = request.getParameter("plaintext");
            final String ssml = request.getParameter("ssml");
            final String xArg = request.getParameter("x_arg");
            String speechText = null;
            if (contentType.equals("text/plain")) {
                speechText = plaintext;
                if (speechText.length() > 250) {
                    throw new Exception("Character limited of 250 reached");
                }
            } else {
                speechText = ssml;
            }
            final byte[] wavBytes = srvc.sendRequest(contentType, speechText, xArg);

            JSONObject jaudio = new JSONObject().put("type", "audio/wav").put("base64",
                    new String(Base64.encodeBase64(wavBytes)));
            jresponse.put("success", true).put("audio", jaudio);
        } catch (Exception e) {
            jresponse.put("success", false).put("text", e.getMessage());
        }

        response.setContentType("text/html");
        PrintWriter writer = response.getWriter();
        writer.print(jresponse);
        writer.flush();
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doPost(request, response);
    }
}

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