parameterizedmessage.java

ALGAE是一个快速创建算法演示的框架。目前支持的算法实现语言包括java和c

package edu.odu.cs.zeil.AlgAE;

import edu.odu.cs.zeil.AlgAE.Message;

import java.util.Vector;


/**
 * ParameterizedMessage.java
 *
 *
 * Created: Thu May 07 12:49:36 1998
 *
 * @author Steven Zeil
 * @version
 */

public class ParameterizedMessage {
  
  Message message;
  Vector params;
  
  public ParameterizedMessage(Message msg, Vector parameters) {
    message = msg;
    params = parameters;
  }
  
  public ParameterizedMessage(Message msg) {
    message = msg;
    params = new Vector();
  }
  
  public ParameterizedMessage(Message msg, int i) {
    message = msg;
    params = new Vector();
    params.addElement(new Integer(i));
  }
  
  public ParameterizedMessage(Message msg, String s) {
    message = msg;
    params = new Vector();
    params.addElement(s);
  }
  
  static private final Class stringClass = ("").getClass();


  public static String decode (String str)
  {
    StringBuffer decoded = new StringBuffer();
    int i = 0;
    int last = str.length();
    if ((last > 0) && (str.charAt(i) == '"'))
      ++i;
    if ((last > i) && (str.charAt(last-1) == '"'))
      --last;
    while ( i < last)
      {
	char ch = str.charAt(i);
	if (ch == '\\')
	  {
	    char c = str.charAt(i+1);
	    int k;
	    if (c >= 'A')
	      k = c - 'A' + 10;
	    else
	      k = c - '0';

	    c = str.charAt(i+2);
	    if (c >= 'A')
	      k = 16*k + c - 'A' + 10;
	    else
	      k = 16*k + c - '0';

	    decoded.append ((char)k);
	    i += 3;
	  }
	else
	  {
	    decoded.append(ch);
	    ++i;
	  }
      }
    return decoded.toString();
  }
  

  public static String encode (String str)
  {
    StringBuffer encoded = new StringBuffer();
    int len = str.length();

    if (len == 0)
      return "" + '"' + '"';
    else
      {
	if ((len > 0) && (str.charAt(0) != '"'))
	  encoded.append ('"');
	    
	for (int i = 0; i < len; ++i)
	  {
	   char ch = str.charAt(i);
	   if ((ch < ' ') || (ch > 'z') || (ch == '\\') || (ch == '"'))
	     {
	      encoded.append ('\\');
	      int k = ch / 16;
	      encoded.append ((k > 9) ? (char)('A' - 10 + k) : (char)('0' + k));
	      k = ch % 16;
	      encoded.append ((k > 9) ? (char)('A' - 10 + k) : (char)('0' + k));
	     }
	   else
	     encoded.append (ch);
	  }
	    
	if ((len > 0) && (str.charAt(len-1) != '"'))
	  encoded.append ('"');
	    
	return encoded.toString();
      }
  }
    




  public String toString()
  {
    StringBuffer str = new StringBuffer(20);
    str.append(message.getMessageKind());
    for (int i = 0; i < params.size(); ++i)
      {
	str.append (' ');
	Object param = params.elementAt(i);
	if (param.getClass() == stringClass)
	  {
	    str.append (encode((String)param));
	  }
	else
	  str.append (param.toString());
      }
    return str.toString();
  }
  
  /**
     * Get the value of message.
     * @return Value of message.
     */
  public Message getMessage() {return message;}
  
  /**
     * Set the value of message.
     * @param v  Value to assign to message.
     */
  public void setMessage(Message  v) {message = v;}
  

  /**
     * Get the value of params.
     * @return Value of params.
     */
  public Vector getParams() {return params;}
  
  /**
     * Set the value of params.
     * @param v  Value to assign to params.
     */
  public void setParams(Vector  v) {params = v;}
  
} // ParameterizedMessage