Logger.java :  » App » mapsforge » org » mapsforge » android » maps » Android Open Source

/*
 * Copyright 2010, 2011 mapsforge.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.mapsforge.android.maps;

import android.util.Log;

/**
 * Class used for logging text to the console.
 */
final class Logger {
  /**
   * Log a simple string message with debug level.
   * 
   * @param str
   *            the log message to be printed.
   */
  static void d(String str) {
    Log.d("osm", Thread.currentThread().getName() + ": " + str);
  }

  /**
   * Log an exception message and its complete stack trace.
   * 
   * @param e
   *            the exception which should be printed.
   */
  static void e(Exception e) {
    StringBuilder stringBuilder = new StringBuilder(512);
    stringBuilder.append("Exception in thread \"" + Thread.currentThread().getName()
        + "\" " + e.toString());
    StackTraceElement[] stack = e.getStackTrace();
    for (int i = 0; i < stack.length; ++i) {
      stringBuilder.append("\n\tat ").append(stack[i].getMethodName()).append("(")
          .append(stack[i].getFileName()).append(":")
          .append(stack[i].getLineNumber()).append(")");
    }
    Log.e("osm", stringBuilder.toString());
  }

  /**
   * Empty private constructor to prevent object creation.
   */
  private Logger() {
    // do nothing
  }
}