Android Open Source - Operation-Valkyrie Filter Internal Storage

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License

The source code is released under:

Terms and conditions Preamble: This Agreement, signed on Jun 10, 2012 [hereinafter: Effective Date] governs the relationship between the Enduser, a private person, (hereinafter: Licensee) and Paul N...

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Java Source Code

package valkyrie.filter;
//from   w  w  w  .  ja v a2  s .  c o  m
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;

import android.content.Context;
import android.util.Log;

/**
 * 
 * COPYRIGHT: Paul Neuhold, Laurenz Theuerkauf, Alexander Ritz, Jakob Schweighofer, Milo Tischler
 * ? Milo Tischler, Jakob Schweighofer, Alexander Ritz, Paul Neuhold, Laurenz Theuerkauf 
 *
 */

/**
 * Filters can access their internal storage folder by their FilterInternalStorage object
 */
public class FilterInternalStorage {
  private static final String TAG = "FilterInternalStorage";
  
  private String filterPath = null;
  private Context context = null;
  private File filterFolder = null;
  
  /**
   * Initialize internal storage folder for the filter
   * 
   * @param IFilter filter
   * @param Context context
   */
  public FilterInternalStorage(IFilter filter, Context context) {
    this.filterPath = new String(filter.getClass().getSimpleName());
    this.context = context;
    this.filterFolder = this.context.getDir(this.filterPath, Context.MODE_PRIVATE);
    
    Log.i(TAG, "New internal storage folder for filter: " + filter.getClass().getSimpleName());
  }
  
  /**
   * Opens a FileOutputStream to a file inside the filter folder
   * 
   * @param String fileName
   * @return FileOutputStream
   * @throws FileNotFoundException
   */
  public FileOutputStream openFileOutput(String fileName) throws FileNotFoundException {        
    return new FileOutputStream(this.filterFolder.getPath() + "/" + fileName);
  }
  
  /**
   * Opens a FileInputStream to a file inside the filter folder
   * 
   * @param String fileName
   * @return FileInputStream
   * @throws FileNotFoundException
   */
  public FileInputStream openFileInput(String fileName) throws FileNotFoundException {
    return new FileInputStream(this.filterFolder.getPath() + "/" + fileName);
  }
  
  /**
   * Checks if the filter folder in the internal storage exists
   * 
   * @return true if the root folder exists
   */
  public boolean rootFolderExists() {    
    if(this.filterFolder.isDirectory() && this.filterFolder.exists()) {
      return true;
    }
    
    return false;
  }
}

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