Android Open Source - VisEQ Installation

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License

The source code is released under:

Copyright (c) 2012, Spotify AB All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:...

If you think the Android project VisEQ 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

/*
 Copyright (c) 2012, Spotify AB/*  w w  w  .j  a va 2 s  .c o  m*/
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright
 notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
 * Neither the name of Spotify AB nor the names of its contributors may 
 be used to endorse or promote products derived from this software 
 without specific prior written permission.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED. IN NO EVENT SHALL SPOTIFY AB BE LIABLE FOR ANY DIRECT, INDIRECT,
 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
 OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * Save the username to disc for login.
 * 
 * Should use settings instead
 */
package com.lsu.vizeq;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;

import android.content.Context;

public class Installation {
  private static String sID = null;
  private static final String INSTALLATION = "INSTALLATION";

  public synchronized static String id(Context context) {
    if (sID == null) {
      File installation = new File(context.getFilesDir(), INSTALLATION);
      try {
        sID = readInstallationFile(installation);
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    }
    return sID;
  }

  private static String readInstallationFile(File installation) throws IOException {
    RandomAccessFile f = new RandomAccessFile(installation, "r");
    byte[] bytes = new byte[(int) f.length()];
    f.readFully(bytes);
    f.close();
    return new String(bytes);
  }

  public static void writeInstallationFile(Context context, String username) {
    File installation = new File(context.getFilesDir(), INSTALLATION);
    FileOutputStream out;
    try {
      out = new FileOutputStream(installation);
      out.write(username.getBytes());
      out.close();
    } catch (IOException e) {
      throw new RuntimeException("Could not write username id to disk");
    }
  }
}

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