priority.java

JAVA实现的一个类库

package  cn.edu.nju.software.sd.cll;
 /**
  * Priority class
  * Father of the Level class
  * @author SuSE
  *
  */
public class Priority {

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    public final static int FATAL_INT = 50000;

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    public final static int ERROR_INT = 40000;

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    public final static int WARNING_INT = 30000;

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    public final static int INFO_INT = 20000;

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    public final static int DEBUG_INT = 10000;

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    public final static int OFF_INT = Integer.MAX_VALUE;
    public final static int ALL_INT = Integer.MIN_VALUE;

 
private int levelNo;
  
private String levelStr;
    
    
 

   final static public Priority FATAL = new Level(FATAL_INT, "FATAL");

  /**
   * @deprecated Use {@link Level#ERROR} instead.
   */
  final static public Priority ERROR = new Level(ERROR_INT, "ERROR");

  /**
   * @deprecated Use {@link Level#WARN} instead.
   */
   public final static Priority WARNING  = new Level(WARNING_INT, "WARN");

  /**
   * @deprecated Use {@link Level#INFO} instead.
   */
  final static public Priority INFO  = new Level(INFO_INT, "INFO");

  /**
   * @deprecated Use {@link Level#DEBUG} instead.
   */
  final static public Priority DEBUG = new Level(DEBUG_INT, "DEBUG");


  protected Priority() {
      levelNo = DEBUG_INT;
      levelStr = "DEBUG";
     
  }

  /**
     Instantiate a level object.
   */
  protected
  Priority(int levelNo, String levelStr   ) {
    this.levelNo= levelNo;
    this.levelStr = levelStr;
    
  }
 

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  /**
   * to compare the level of two priorities.
   */
  public
  boolean isGreaterOrEqual(Priority r) {
    return levelNo >= r.levelNo;
  }
/**
 * getAllPossiblePriorities function
 * (Not used here.)
 * @return
 */
  public
  static
  Priority[] getAllPossiblePriorities() {
    return new Priority[] {Priority.FATAL, Priority.ERROR, Level.WARNING, 
			   Priority.INFO, Priority.DEBUG};
  }
  
 

  /**
   * Whether the two priorities are of the same level.
   */
  public
  boolean equals(Object o) {
    if(o instanceof Priority) {
      Priority r = (Priority) o;
      return (this.levelNo == r.levelNo);
    } else {
      return false;
    }
  }


   /**
    * toInt function
    * get the int value of Level
    * @return
    */
    public final int toInt () {
        return levelNo;
    }
 /**
  * toString function
  * get the String value of Level;
  */
    @Override
  final
  public
  String toString() {
    return levelStr;
  }

  /**
   * toPriority function
   * get the Level by String value
   * @param sArg
   * @return
   */
    public Priority toPriority (String sArg) {
        return Level.toLevel(sArg);
    }

/**
 * toPriority function
 * get the Level by int value
 * @param val
 * @return
 */
    public Priority toPriority (int val) {
       return Level.toLevel(val);
    }

   

}