Android Open Source - Music2SD Mount Manager

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License

The source code is released under:

Copyright (c) 2014, Lepidus Development LLC All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions ...

Java Source Code

package com.lepidusdevelopment.music2sd;
/*from  ww  w  . j a  v  a 2s.com*/
/**
 * Copyright (c) 2014, Lepidus Development LLC
 * 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.
 * 
 * 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
 */

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import android.content.Context;
import android.os.AsyncTask;

public class MountManager {
  private final Context _context;
  
  private List<Mount> _mounts = null;
  private MountManagerListener _delegate = null;
  
  public MountManager(Context context) {
    this._context = context;
  }
  
  public void setFoundMountPointListener(MountManagerListener delegate) {
    _delegate = delegate;
  }
  
  public void getMountPoints() {
    (new RuntimeHelper("mounts")).execute();
  }
  
  public void getDebugInfo() {
    (new RuntimeHelper("debug")).execute();    
  }
  
  private void generateMountPoints() {
    if (_delegate != null) {
      _delegate.hasFoundMountPoints(_mounts);
    }
  }
  
  // - Threaded Asynchronous Task to handle runtime processes.
  private class RuntimeHelper extends AsyncTask<String, Void, List<Mount>> {
    private final String _tag;
    
    RuntimeHelper(String tag) {
      _tag = tag;
    }
    
    @Override
    protected List<Mount> doInBackground(String... params) {
      List<Mount> results = new ArrayList<Mount>();
      
      Runtime runtime = Runtime.getRuntime();
        Process proc = null;
        
        try {
            proc = runtime.exec("mount");
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        
        if (proc != null) {
          InputStream is = proc.getInputStream();
          InputStreamReader isr = new InputStreamReader(is);
          BufferedReader br = new BufferedReader(isr);
          String line;
          try {
              while ((line = br.readLine()) != null) {
                results.add(new Mount(_context, line));
              }
          } catch (IOException e) {
              e.printStackTrace();
          }
        }
        
      return results;
    }
    
    protected void onPostExecute(List<Mount> result) {
      if (_tag == "mounts") {
        List<Mount> cleanedResults = new ArrayList<Mount>();
        Iterator<Mount> mounts = result.iterator();
        
        while(mounts.hasNext()) {
          Mount mount = mounts.next();
          mount.generateName();
          
          if (mount.name != null) {
            mount.getSpaceInformation();
            cleanedResults.add(mount);
          }
        }
        
        _mounts = cleanedResults;
        generateMountPoints();
      }
      else {
        if (_delegate != null) {
          _delegate.hasFoundMountPointsDebugInfo(System.getenv("EXTERNAL_STORAGE"), System.getenv("SECONDARY_STORAGE"), result);
        }
      }
    }
  }
}

Java Source Code List

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