SyncContacts.java :  » UnTagged » easy-p-sync » EasyPSync » app » Android Open Source

package easypsync.app;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;

import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.provider.ContactsContract;
import android.util.Log;

public class SyncContacts {
  Context context;

  FileWriter fileWriter;
  
  String outputFilePath;
  
  private final String TAG = SyncContacts.class.getName();

  public SyncContacts(Context context) {
    this.context = context;
  }

  public void sync() {
    openOutputFile();
    AssetFileDescriptor fd;
    try {
      Cursor cursor = context.getContentResolver().query(
          ContactsContract.Contacts.CONTENT_URI,
          null,
          null,
          null,
          null);
      while (cursor.moveToNext()) {
        String lookupKey = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
        Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);

        fd = context.getContentResolver().openAssetFileDescriptor(uri, "r");
        FileInputStream fis = fd.createInputStream();
        byte[] buf = new byte[(int) fd.getDeclaredLength()];
        if (0 < fis.read(buf)) {
          String vCard = new String(buf);
//          if (Log.isLoggable(TAG, Log.DEBUG))
//            Log.d(TAG, vCard);
          writeToOutputFile(vCard);
        }
        fis.close();
      }
      cursor.close();
  
    } catch (FileNotFoundException e) {
      Log.e(TAG, "File not found", e);
    } catch (IOException e) {
      Log.e(TAG, "IO", e);
    }

    closeOutputFile();
    transferFile();
  }

  private void openOutputFile() {
    File root = Environment.getExternalStorageDirectory();
//    Log.i(TAG, root.getAbsolutePath());
    if (!root.canWrite()) {
      Log.e(TAG, "CANNOT WRITE");
    }
    File subdir = new File(root, "pimBackup");
    subdir.mkdirs();
    File f = new File(subdir, "contacts.vcs");
    outputFilePath = f.getAbsolutePath();
    try {
      f.createNewFile();
      fileWriter = new FileWriter(f);
    } catch (IOException e) {
      Log.e(TAG, "IO when creating contacts file", e);
    }

    
  }
  
  private void closeOutputFile() {
    try {
      fileWriter.close();
    } catch (IOException e) {
    }
  }
  
  private void writeToOutputFile(String text) {
    try {
      fileWriter.write(text);
    } catch (IOException e) {
      Log.e(TAG, "Could not write to contacts file", e);
    }
  }
  
  private void transferFile() {
    SMBTransfer.transferFile(outputFilePath, "contacts.vcs");
  }
}