root/Trunk/SpeechSubmission/VFSpeechSubmission/java/src/speechrecorder/Prompts.java

package speechrecorder;

import java.util.Random;
import java.util.StringTokenizer;
import java.io.*;

/**
 * Localizes the speech submission applet in various languages
 *   
 * <h1>License</h1>
 * <p>Copyright (C) 2007-2011 Ken MacLean
 *
 * <p>This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * <p>This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * <p>You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
class Prompts  {
        //todo need to convert to use .po files...
        /*
         * Class variables
         */
        private String [] promptList;
    private String [] englishPromptList = { 
             "rp-01 When the sunlight strikes raindrops in the air,",
                 "rp-02 they act as a prism and form a rainbow.",
                 "rp-03 The rainbow is a division of white light into many beautiful colors.",
                 "rp-04 These take the shape of a long round arch, with its path high above,",
                 "rp-05 and its two ends apparently beyond the horizon.",
                 "rp-06 There is , according to legend, a boiling pot of gold at one end.",
                 "rp-07 People look, but no one ever finds it.",
                 "rp-08 When a man looks for something beyond his reach,",
                 "rp-09 his friends say he is looking for the pot of gold at the end of the rainbow.",
                 "rp-10 Throughout the centuries people have explained the rainbow in various ways.",
                 "rp-11 Some have accepted it as a miracle without physical explanation.",
                 "rp-12 To the Hebrews it was a token that there would be no more universal floods.",
                 "rp-13 The Greeks used to imagine that it was a sign",
                 "rp-14 from the gods to foretell war or heavy rain.",
                 "rp-15 The Norsemen considered the rainbow as a bridge",
                 "rp-16 over which the gods passed from earth to their home in the sky.",
                 "rp-17 Others have tried to explain the phenomenon physically.",
                 "rp-18 Aristotle thought that the rainbow was caused by",
                 "rp-19 reflection of the sun's rays by the rain.",
                 "rp-20 Since then physicists have found that it is not reflection,",
                 "rp-21 but refraction by the raindrops which causes the rainbows.",
                 "rp-22 Many complicated ideas about the rainbow have been formed.",
                 "rp-23 The difference in the rainbow depends considerably upon the size of the drops,",
                 "rp-24 and the width of the colored band increases as the size of the drops increases.",
                 "rp-25 The actual primary rainbow observed is said to be the effect of",
                 "rp-26 super-imposition of a number of bows.",
                 "rp-27 If the red of the second bow falls upon the green of the first,",
                 "rp-28 the result is to give a bow with an abnormally wide yellow band,",
                 "rp-29 since red and green light when mixed form yellow.",
                 "rp-30 This is a very common type of bow, one showing mainly red and yellow,",
                 "rp-31 with little or no green or blue." ,
                 "ar-01 Once there was a young rat named Arthur who never could make up his mind.",
                 "ar-02 Whenever his friends asked him if he would like to go out with them,",
                 "ar-03 he would only answer, \"I don't know;\" he wouldn't say yes or no either.",
                 "ar-04 He would always shirk making a choice. His Aunt Helen said to him,",
                 "ar-05 \"Now look here! No one is going to care for you if you carry on like this.\"",
                 "ar-06 You have no more mind than a blade of grass.",
                 "ar-07 One rainy day the rats heard a great noise in the loft.",
                 "ar-08 The pine rafters were all rotten, so that the barn was rather unsafe.",
                 "ar-09 At last the joists gave way and fell to the ground.",
                 "ar-10 The walls shook, and all the rats' hair stood on end with fear and horror.",
                 "ar-11 \"This won't do,\" said the captain; \"I'll send out scouts to search for a new home.\"",
                 "ar-12 Within five hours the ten scouts came back and said,",
                 "ar-13 We found a stone house where there is room for us all.",
                 "ar-14 There is a kindly horse named Nelly, a cow, a calf, and a garden with an elm tree.",
                 "ar-15 The rats crawled out of their little houses and stood on the floor in a long line.",
                 "ar-16 Just then the old rat saw Arthur. Stop. he ordered coarsely.",
                 "ar-17 \"You are coming, of course.\" \"I'm not certain,\" said Arthur, undaunted,",
                 "ar-18 \"The roof may not come down yet.\"",
                 "ar-19 \"Well,\" said the old rat, \"we can't wait for you to join us. Right about face! March!\"",
                 "ar-20 Arthur stood and watched them hurry away.",
                 "ar-21 \"I think I'll go tomorrow,\" he said calmly to himself, \"but then again I don't know;\"",
                 "ar-22 \"it's so nice and snug here,\".  That night there was a big crash.",
                 "ar-23 In the foggy morning some men with some boys and girls rode up and looked at the barn.",
                 "ar-24 One of them moved a board and saw a rat quite dead, half in and half out of his hole.",
         };

    private String [][] promptSubset; 

    /**
     * determine which prompt list to use based on ISO 3166 country codes
     * (see http://www.theodora.com/country_digraphs.html)
     *  
     * @param NumberofPrompts
     * @param Language
     */
        public Prompts(int NumberofPrompts, String Language) {
                if (Language.equals("EN")) {
                        promptList = getPromptTextFile("englishPromptList.txt", 1223); // number of prompts needs to be exact or there might be an error on a roll-over
                } else if (Language.equals("NL")) {
                        promptList = getPromptTextFile("nl","dutchPromptList.txt", 947);
                } else if (Language.equals("DE")) {
                        promptList = getPromptTextFile("germanPromptList.txt", 1211);
                } else if (Language.equals("RU")) {
                        promptList = getPromptTextFile("russianPromptList.txt", 81);    
                } else if (Language.equals("IT")) {
                        promptList = getPromptTextFile("it","italianPromptList.txt", 1185);     
                } else if (Language.equals("HB")) {
                        promptList = getPromptTextFile("hebrewPromptList.txt", 55);     
                } else if (Language.equals("PT_BR")) {
                        promptList = getPromptTextFile("brazilianPromptList.txt", 218); 
                } else if (Language.equals("ES")) {
                        promptList = getPromptTextFile("es","spanishPromptList.txt", 43);       
                } else if (Language.equals("FR")) {
                        promptList = getPromptTextFile("frenchPromptList.txt", 865);    
                } else if (Language.equals("EL")) {
                        promptList = getPromptTextFile("el","greekPromptList.txt", 221);                
                } else if (Language.equals("TR")) {
                        promptList = getPromptTextFile("tr","turkishPromptList.txt", 40 );              
                } else if (Language.equals("BG")) {
                        promptList = getPromptTextFile("bg","bulgarianPromptList.txt", 50 );            
                } else {
                System.err.println("getPromptTextFile error accessing prompt file for "+ Language + "using default English prompts");
                        promptList = englishPromptList;
                }
                
                promptSubset = new String [2][NumberofPrompts];
            
                Random randomGenerator = new Random();
                int arrayLength = promptList.length - 1;
                int nextPrompt = randomGenerator.nextInt(arrayLength);
                for (int i=0;i<NumberofPrompts; i++) {
                        if (nextPrompt <= arrayLength) {                
                                getPromptLine(nextPrompt, i);
                        } else {
                                nextPrompt = 0;
                                getPromptLine(nextPrompt, i);
                        }
                        nextPrompt++;
                }
        }
                
        public String [][] getPrompts() {
                return promptSubset;
        }
        
        private void getPromptLine(int nextPrompt, int idx) {
            String promptID;
            StringBuffer prompt = new StringBuffer();
            
                StringTokenizer st = new StringTokenizer(promptList[nextPrompt]);
            String [] words= new String [st.countTokens()];
                int i = 0;
                while (st.hasMoreTokens()) { 
                        words[i] = st.nextToken(); i++; 
                }
                promptID = words[0];
        
                int j = 0;      
            if (words.length > 0) {
                for (i=1; i<words.length; i++,j++) {
                        prompt.append(words[i]);
                        prompt.append(" ");
                }
            }
            promptSubset [0][idx] = promptID;
            promptSubset [1][idx] = prompt.toString();
        }       
        
        private String [] getPromptTextFile(String File, int numberOfPrompts) {
            String [] words= new String [numberOfPrompts];
                try {
                    InputStream is = getClass().getResourceAsStream(File); 
                    InputStreamReader isr = new InputStreamReader(is,"UTF-8" );
                        System.err.println(System.getProperty("line.separator") + "PromptList Character Encoding:" + isr.getEncoding());  // doesn't work ????
                    BufferedReader br = new BufferedReader(isr);
                    String line;
                        int i = 0;    
                    while ((line = br.readLine()) != null) {
                                words[i] = line;
                                i++; 
                    }
                  } catch (IOException io) {
                  System.err.println("getPromptTextFile error accessing text file for "+File + "using default prompts");
                  return englishPromptList;
                  }
                  return words;
        }
        
        private String [] getPromptTextFile(String Prefix, String File, int numberOfPrompts) {
            String [] words= new String [numberOfPrompts];
                try {
                    InputStream is = getClass().getResourceAsStream(File);
                    InputStreamReader isr = new InputStreamReader(is,"UTF-8" );
                    System.err.println(System.getProperty("line.separator") + "PromptList Character Encoding:" + isr.getEncoding());  // doesn't work ????
                    BufferedReader br = new BufferedReader(isr);
                    String line;
                        int i = 0;    
                    while ((line = br.readLine()) != null) {
                                // System.err.println(Prefix + "-" + paddedZeros(i,4) + " " + line); // !!!!!!
                                words[i] = Prefix + "-" + paddedZeros(i,4) + " " + line;
                                i++; 
                    }
                  } catch (IOException io) {
                  System.err.println("getPromptTextFile error accessing text file for "+File + "using default prompts");
                  return englishPromptList;
                  }
                  return words;
        }
        
        public String paddedZeros(int number, int numLength)
        {
                String s = Integer.toString(number);
                if (s.length() > numLength) {
                        return s.substring(0,numLength);
                } else if (s.length() < numLength) { 
                   return "0000000000".substring(0, numLength - s.length ()) + s;
                } else { 
                        return s;
                }
        } 


}