code: /*
   * Copyright (C) 2009 The Android Open Source Project
   *
   * 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.svox.pico;
  
  import java.io.File;
  
  import android.app.Activity;
  import android.content.Intent;
  import android.os.Bundle;
  import android.os.Environment;
  import android.speech.tts.TextToSpeech;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  
  /*
   * Checks if the voice data for the SVOX Pico Engine is present on the
   * sd card.
   */
  public class CheckVoiceData extends Activity {
  
      // The following constants are the same path constants as the ones defined
      // in external/svox/pico/tts/com_svox_picottsengine.cpp
      private final static String PICO_LINGWARE_PATH =
              Environment.getExternalStorageDirectory() + "/svox/";
      private final static String PICO_SYSTEM_LINGWARE_PATH = "/system/tts/lang_pico/";
  
      private final static String[] dataFiles = {
              "de-DE_gl0_sg.bin", "de-DE_ta.bin", "en-GB_kh0_sg.bin", "en-GB_ta.bin",
              "en-US_lh0_sg.bin", "en-US_ta.bin", "es-ES_ta.bin", "es-ES_zl0_sg.bin",
              "fr-FR_nk0_sg.bin", "fr-FR_ta.bin", "it-IT_cm0_sg.bin", "it-IT_ta.bin"
      };
  
      private final static String[] dataFilesInfo = {
          "deu-DEU", "deu-DEU", "eng-GBR", "eng-GBR", "eng-USA", "eng-USA",
          "spa-ESP", "spa-ESP", "fra-FRA", "fra-FRA", "ita-ITA", "ita-ITA"
      };
  
      private final static String[] supportedLanguages = {
          "deu-DEU", "eng-GBR", "eng-USA", "spa-ESP", "fra-FRA", "ita-ITA"
      };
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          int result = TextToSpeech.Engine.CHECK_VOICE_DATA_PASS;
          boolean foundMatch = false;
  
          ArrayList<String> available = new ArrayList<String>();
          ArrayList<String> unavailable = new ArrayList<String>();
  
          HashMap<String, Boolean> languageCountry = new HashMap<String, Boolean>();
  
          Bundle bundle = getIntent().getExtras();
          if (bundle != null){
              ArrayList<String> langCountryVars = bundle.getStringArrayList(
                      TextToSpeech.Engine.EXTRA_CHECK_VOICE_DATA_FOR);
              if (langCountryVars != null){
                  for (int i = 0; i < langCountryVars.size(); i++){
                      if (langCountryVars.get(i).length() > 0){
                          languageCountry.put(langCountryVars.get(i), true);
                      }
                  }
              }
          }
  
          // Check for files
          for (int i = 0; i < supportedLanguages.length; i++){
              if ((languageCountry.size() < 1) ||
                  (languageCountry.containsKey(supportedLanguages[i]))){
                  if (!fileExists(dataFiles[2 * i]) ||
                      !fileExists(dataFiles[(2 * i) + 1])){
                      result = TextToSpeech.Engine.CHECK_VOICE_DATA_MISSING_DATA;
                      unavailable.add(supportedLanguages[i]);
                  } else {
                      available.add(supportedLanguages[i]);
                      foundMatch = true;
                  }
              }
          }
  
          if ((languageCountry.size() > 0) && !foundMatch){
              result = TextToSpeech.Engine.CHECK_VOICE_DATA_FAIL;
          }
  
          // Put the root directory for the sd card data + the data filenames
          Intent returnData = new Intent();
          returnData.putExtra(TextToSpeech.Engine.EXTRA_VOICE_DATA_ROOT_DIRECTORY, PICO_LINGWARE_PATH);
          returnData.putExtra(TextToSpeech.Engine.EXTRA_VOICE_DATA_FILES, dataFiles);
          returnData.putExtra(TextToSpeech.Engine.EXTRA_VOICE_DATA_FILES_INFO, dataFilesInfo);
  
          returnData.putStringArrayListExtra(TextToSpeech.Engine.EXTRA_AVAILABLE_VOICES, available);
          returnData.putStringArrayListExtra(TextToSpeech.Engine.EXTRA_UNAVAILABLE_VOICES, unavailable);
          setResult(result, returnData);
          finish();
      }
  
      private boolean fileExists(String filename){
          File tempFile = new File(PICO_LINGWARE_PATH + filename);
          File tempFileSys = new File(PICO_SYSTEM_LINGWARE_PATH + filename);
          if ((!tempFile.exists()) && (!tempFileSys.exists())) {
              return false;
          }
          return true;
      }
  
  }
  