Android Open Source - SimpleLogViewer Log Parser Imp

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Back to project page SimpleLogViewer.

License

The source code is released under:

Apache License

Java Source Code

package com.emelabs.logviewer;
//  w w w.j  a  v  a2  s.c  om
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import android.util.Log;

public class LogParserImp implements LogParser{
  
  private static final String TAG = "LogParserImp";
  
  private static final SimpleDateFormat formatter = new SimpleDateFormat("MM-dd HH:mm:ss.SSS", Locale.getDefault());
  
  /**
   * Priorities definition
   */
  private static Map<String, Integer> priorities = new HashMap<String, Integer>();
  static{
    priorities.put("V", Log.VERBOSE);
    priorities.put("D", Log.DEBUG);
    priorities.put("I", Log.INFO);
    priorities.put("W", Log.WARN);
    priorities.put("E", Log.ERROR);
  }
  
  
  public int getPriority(String priorityKey){
    return priorities.get(priorityKey);
  }
  
  public int getPriorityByName(String priorityName){
    return getPriority(priorityName.substring(0,1));
  }
  
  public boolean isException(String priorityName){
    return priorityName.equals("E");
  }

  
  /**
   *  Line : Priority | date | Tag | message
   *  Line example: V | 01-17 16:22:54.053 | MainActivity - [onStart] entering...
   */
  @Override
  public List<Item> parseFile(File file) {
    List<Item> itemsList = new ArrayList<Item>();
    try {
      BufferedReader reader = new BufferedReader(new FileReader(file));
      String line;
      while((line = reader.readLine()) != null){
        try {
          Log.d(TAG, "[onCreate] line:" + line);
          String[] split = line.split("\\|");
          
          String strPriority = split[0].trim();
          
          String strDate = split[1].trim();

          String text = split[2];
          
          int pos = text.indexOf("-");
          String tag = text.substring(0, pos).trim();
          String message = text.substring(pos+2).trim();
          
          Log.d(TAG, "priority:" + strPriority + " | date:" + strDate + " | tag:" + tag + " | message:" + message);
          
          if(isException(strPriority)){
            line = reader.readLine();
            message += "\n" + line;
            
            while((line = reader.readLine()).trim().startsWith("at")){
              message += "\n" + line;
            }
          }
          Item item = new Item(getPriority(strPriority), strPriority, formatter.parse(strDate), tag, message);
          itemsList.add(item);          
          
        } catch (ParseException e) {
          Log.e(TAG, "[onCreate] with line:[" + line + "]", e);
        } catch (Exception e) {
          Log.e(TAG, "[onCreate] with line:[" + line + "]", e);
        }
      }
      
      reader.close();

    } catch (FileNotFoundException e) {
      Log.e(TAG, "[onCreate]", e);
    } catch (IOException e) {
      Log.e(TAG, "[onCreate]", e);
    }
    return itemsList;
  }
}

Java Source Code List

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