Android Open Source - EasyQuranMemorizer Reciter Data Manger

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Back to project page EasyQuranMemorizer.
License

The source code is released under:
MIT License
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Java Source Code

package com.google.easyquranmemorizerhelper;
/*from  w w  w .ja  v a 2s.com*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;

import android.content.Context;
import android.content.res.AssetManager;

/**
 * This class manages the list of all reciters and urls from which audio can be
 * downloaded.
 * 
 * @author Shoaib Khan
 * 
 */
public class ReciterDataManger {

  private Context myContext;
  private LinkedHashMap<String, String> reciterUrlList;

  public ReciterDataManger(Context myContext) {
    this.myContext = myContext;

    reciterUrlList = new LinkedHashMap<String, String>();
    populateList();

  }

  public ArrayList<String> getReciterList() {
    ArrayList<String> reciterList = new ArrayList<String>();
    for (String string : reciterUrlList.keySet()) {
      reciterList.add(string);
    }
    return reciterList;
  }

  public HashMap<String, String> getReciterUrlList() {
    return reciterUrlList;
  }

  /**
   * This function load the CONSTANT.RECITER_LIST file which contains
   * recitername and url containing audio. It populate the hashMap
   * reciterUrlList
   */
  private void populateList() {
    AssetManager assetManager = myContext.getAssets();
    InputStream is;
    try {
      is = assetManager.open(CONSTANT.RECITER_LIST);
      BufferedReader in = new BufferedReader(new InputStreamReader(is));
      String line = null;
      while ((line = in.readLine()) != null) {
        String tmp[] = line.split("===");
        String reciterName = tmp[0].trim();
        String reciterUrl = tmp[1].trim();
        reciterUrlList.put(reciterName, reciterUrl);
        // System.out.println(reciterName + "," + reciterUrl);
      }
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
  }

  /**
   * This function searches for all the reciter whose recitation has already
   * been downloaded for surah given as prameter. It scans the download
   * location and determines the same.
   * 
   * @param surah
   * @return
   */
  public ArrayList<String> getDownloadedReciterList(final Surah surah) {
    ArrayList<String> authorList = new ArrayList<String>();
    ArrayList<String> pathList = ExternalStorage.getSdAndExternalStorage();

    // Searching for all possible audio it could be in externalStorage or sd
    // card.
    for (String string : pathList) {
      File path = new File(string + "/"
          + CONSTANT.APPLICATIONROOTDIRECTORYLOCATION);
      if (!path.exists())
        continue;
      path = new File(string + "/" + CONSTANT.AUDIODIRECTORYLOCATION);

      // If Audio Directory does not exists then return;
      if (!path.exists())
        continue;

      path = new File(string + "/" + CONSTANT.AUDIODIRECTORYLOCATION
          + "/" + surah.getSurahNumber());

      if (!path.exists() || path.isFile() || !path.canRead())
        continue;

      File[] files = path.listFiles();
      for (int i = 0; i < files.length; i++) {

        String reciterName = files[i].getName();
        if (files[i].isFile() || !files[i].canRead())
          continue;
        File[] tmp = files[i].listFiles(new FilenameFilter() {

          // This filters scans all the files and checks if all the
          // files are .mp3 and their count is equal to total verse of
          // the surah
          @Override
          public boolean accept(File file, String match) {
            String[] reTmp = match.split("\\.");
            if (reTmp == null || reTmp.length != 2
                || !reTmp[1].equals("mp3"))
              return false;

            int number = Integer.parseInt(reTmp[0]);
            if (number < 0 || number > surah.getVerseCount())
              return false;

            return true;

          }
        });
        if (tmp != null && tmp.length == surah.getVerseCount())
          if (!authorList.contains(reciterName))
            authorList.add(reciterName);
      }
    }

    return authorList;

  }
  /**
   * Returns Reciter List whose audio has not yet been downloaded.
   * @param surah
   * @return
   */

  public ArrayList<String> getNotDownloadedReciterList(final Surah surah) {
    ArrayList<String> all = getReciterList();
    ArrayList<String> present = getDownloadedReciterList(surah);
    for (String string : present) {
      all.remove(string);
    }
    return all;
  }
}
Java Source Code List
