Android Open Source - droidparts-battery-widget Local Storage

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Back to project page droidparts-battery-widget.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (C) 2012 Herbert Straub, herbert@linuxhacker.at
 *//www  . ja  v a 2  s. com
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package at.linuxhacker.battery;
import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;


import android.os.Environment;
import android.util.Log;
import at.linuxhacker.battery_widget.BatteryWidget;

/*
 * Idea: 
 * Write own application LogClass oder use Log4j?
 * 
 * http://stackoverflow.com/questions/6757179/how-to-write-exception-in-log-file-using-android
 * 
 */


public class LocalStorage {
  static final private String DIRNAME = "QuickBattery";
  private String directoryname = null;
  
  public LocalStorage() {
    this.directoryname = Environment.getExternalStorageDirectory( ) 
        + File.separator + LocalStorage.DIRNAME;
    File directory = new File( this.directoryname );
    directory.mkdirs( );
  }
  
  
  public void writeExceptionLog ( Exception e ) {
    Date now = new Date( );
    SimpleDateFormat format = new SimpleDateFormat( "yyyy-MM-dd_HHmmss" );
    String filename = "exception_" + new String( format.format( now ) )
        + ".txt";
    String fullPathname = this.directoryname + File.separator + filename;
    File file = new File( fullPathname );
    try {
    PrintWriter writer = new PrintWriter( new FileWriter( file ) );
    writer.println( "Exception in Thread: " + Thread.currentThread( ).getName( )
        + " Date: " + format.format( now ) );
    writer.print( Log.getStackTraceString( e ) );
    writer.close( );
    } catch ( Exception x ) {
      Log.e( BatteryWidget.TAG, "Cannot write Exception File: " + x );
    }
  }

}

Java Source Code List