visitorauthenticator.java

Java p2p程序设计2002年版

/*
 * VisitorAuthenticator.java
 *
 * Created on September 23, 2001, 11:16 PM
 */

package com.sams.jxta.groups;
import net.jxta.membership.*;
import net.jxta.credential.AuthenticationCredential;
import net.jxta.peergroup.*;
import net.jxta.protocol.*;
import net.jxta.service.*;
import net.jxta.exception.*;
import net.jxta.peer.*;
import net.jxta.document.*;
import net.jxta.credential.*;
//import net.jxta.id.IDFactory;


/**
 * This class is used to authenticate the user into the group. 
 * We only allow the user into the group
 * if they give us a user name and are
 * in a compatible debug mode.
 *
 * @author  Daniel Brookshier
 * @version
 */
public class VisitorAuthenticator implements Authenticator {
   protected String visitorName = "";
   private String password = "";
   protected boolean debug = false;
   protected boolean allowDebug = true;
  
   MembershipService source;
   AuthenticationCredential application;
   
   
   
   VisitorAuthenticator( MembershipService source, AuthenticationCredential application ) {
      this.source = source;
      this.application = application;
      System.out.println(this.getClass().getName()+" **** VisitorAuthenticator()");
   }
   
   
   /**
    * Return the Authentication Credential associated with this authenticator if any.
    */
   public AuthenticationCredential getAuthenticationCredential(){
      return application;
   }
   
   /**
    *Returns the name of this authentication method.
    **/
   public String getMethodName(){
      return "VisitorAuthenticator";
   }
   public void setVisitorName(String visitorName ){
      this.visitorName = visitorName;
   }
   public String getVisitorName(){
      return visitorName;
   }
   /**
    * Returns the service which generated this authenticator.
    */
   public MembershipService getSourceService() {
      return source;
   }
   /**
    * Returns true if this Authenticator has been satisfied and is ready for the join operation.
    * We are only worried about the user name and if we are allowing debug users. 
    */
   public boolean isReadyForJoin() {
      System.out.println(this.getClass().getName()+" **** isReadyForJoin()");
      if (!getAllowDebugMode() && getDebugMode()){
         return false;
      }else if(getVisitorName() == null || getVisitorName().length() == 0){
         return false;
      }else{
         return true;
      }
   }
   public void setPassword(String password){
      this.password = password;
   }
   public void setDebugMode(boolean debug){
      this.debug = debug;
   }
   public boolean getDebugMode(){
      return debug;
   }
   /**
    * Set to false to prevent debug users.
    */
   protected void setAllowDebugMode(boolean allowDebug){
      this.allowDebug = allowDebug;
   }
   /**
    * The state of the group to allow debug users.
    */
   protected boolean getAllowDebugMode(){
      return allowDebug;
   }
   
}