基于JAINSIP的一个proxy源码

				/*				 * ContactTag.java				 *				 * Created on October 4, 2002, 7:17 PM				 */								package gov.nist.sip.instantmessaging.presence.cpimparser;								/**				 *				 * @author  deruelle				 * @version 1.0				 */				public class ContactTag  {								    private float priority;				    private String contact;				    				    /** Creates new ContactTag */				    public ContactTag() {				         priority=-1;				         contact=null;				    }				    				    public void setPriority(float priority) {				        this.priority=priority;				    }				    				    public float getPriority() {				        return priority;				    }								    public void setContact(String contact) {				        this.contact=contact;				    }				    				    public String getContact() {				        return contact;				    }				    				    				    public String toString() {				        String result="				        if (priority!=-1)				            result+="priority=\""+priority+"\"";				        result+=" >";				        if (contact!=null)				            result+=contact;				        result+="\n";				        return result;				    }				    				}