Android Open Source - scanvine-android Util

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License

The source code is released under:

Copyright (c) 2013 Jonathan Evans (http://www.rezendi.com) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Softw...

If you think the Android project scanvine-android listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.scanvine.android.util;
/*  www  . jav  a 2 s . co m*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;

public class Util {
  public static String ConvertUrlToFilename(String url) {
    if (url==null)
      return null;
    String file = url.replace("http://","").replace("https://","").replace("/", "_").replace(" ","_").replace(".","_");
    file = file.replaceAll("[^a-zA-Z0-9_\\-\\s]", "");
    if (file.endsWith("_"))
      file = file.substring(0, file.length()-1);
    return file;
  }
  
  public static boolean AreWeOnline(Context context) {
    ConnectivityManager cm =
            (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
     
    NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
    return activeNetwork != null && activeNetwork.isConnectedOrConnecting();
  }
  
    public static String ConvertStreamToString(InputStream is) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();
        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }

    public static String ConvertFileToString(File file) {
      Log.i("Util", "Converting file at "+file+" to string");
      String retval = null;
      try {
          InputStream inputStream = new FileInputStream(file);
          if ( inputStream != null ) {
              InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
              BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
              String receiveString = "";
              StringBuilder sb = new StringBuilder();
              while ( (receiveString = bufferedReader.readLine()) != null ) {
                  sb.append(receiveString);
              }

              inputStream.close();
              retval = sb.toString();
          }
      }
      catch (FileNotFoundException ex) {
          Log.e("Util", "File not found: " + ex.toString());
      } catch (IOException ex) {
          Log.e("Util", "Can not read file: " + ex.toString());
      }
      return retval;
    }

    public static void WriteToFile(Context context, String filename, String data) {
        try {
          FileOutputStream fos = context.openFileOutput(filename, Context.MODE_PRIVATE);
            OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fos);
            outputStreamWriter.write(data);
            outputStreamWriter.flush();
            outputStreamWriter.close();
        }
        catch (IOException e) {
            Log.e("Exception", "File write failed: " + e.toString());
        } 
    }

}

Java Source Code List