Jetty example source code file (MailSessionReference.java)

This example Jetty source code file (MailSessionReference.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Jetty tags/keywords

hashtable, mailsessionreference, naming, passwordauthentication, passwordauthenticator, passwordauthenticator, properties, reference, reference, runtimeexception, sessionreference, string, string, stringrefaddr, stringrefaddr, util

The Jetty MailSessionReference.java source code

// ========================================================================
// $Id: MailSessionReference.java 1386 2006-12-08 17:53:22Z janb $
// Copyright 1999-2004 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at 
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========================================================================

package org.mortbay.naming.factories;


import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;


import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;

import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NamingException;
import javax.naming.RefAddr;
import javax.naming.Reference;
import javax.naming.Referenceable;
import javax.naming.StringRefAddr;
import javax.naming.spi.ObjectFactory;

import org.mortbay.jetty.security.Password;

/**
 * MailSessionReference
 * 
 * This is a subclass of javax.mail.Reference and an ObjectFactory for javax.mail.Session objects.
 * 
 * The subclassing of Reference allows all of the setup for a javax.mail.Session
 * to be captured without necessitating first instantiating a Session object. The
 * reference is bound into JNDI and it is only when the reference is looked up that
 * this object factory will create an instance of javax.mail.Session using the
 * information captured in the Reference.
 *
 */
public class MailSessionReference extends Reference implements ObjectFactory
{
 

    public static class PasswordAuthenticator extends Authenticator
    {
        PasswordAuthentication passwordAuthentication;
        private String user;
        private String password;

        public PasswordAuthenticator()
        {
            
        }
        
        public PasswordAuthenticator(String user, String password)
        {
            passwordAuthentication = new PasswordAuthentication (user, (password.startsWith(Password.__OBFUSCATE)?Password.deobfuscate(password):password));
        }

        public PasswordAuthentication getPasswordAuthentication()
        {
            return passwordAuthentication;
        }
        
        public void setUser (String user)
        {
            this.user = user;
        }
        public String getUser ()
        {
            return this.user;
        }
        
        public String getPassword ()
        {
            return this.password;
        }

        public void setPassword(String password)
        {
            this.password = password;
        }

       
    };
    
    
  

    
    /**
     * 
     */
    public MailSessionReference()
    {
       super ("javax.mail.Session", MailSessionReference.class.getName(), null); 
    }


    /** 
     * Create a javax.mail.Session instance based on the information passed in the Reference
     * @see javax.naming.spi.ObjectFactory#getObjectInstance(java.lang.Object, javax.naming.Name, javax.naming.Context, java.util.Hashtable)
     * @param ref the Reference
     * @param arg1 not used
     * @param arg2 not used
     * @param arg3 not used
     * @return
     * @throws Exception
     */
    public Object getObjectInstance(Object ref, Name arg1, Context arg2, Hashtable arg3) throws Exception
    {
        if (ref == null)
        return null;
        
        Reference reference = (Reference)ref;
        

        Properties props = new Properties();
        String user = null;
        String password = null;
        
        Enumeration refs = reference.getAll();
        while (refs.hasMoreElements())
        {
            RefAddr refAddr = (RefAddr)refs.nextElement();
            String name = refAddr.getType();           
            String value =  (String)refAddr.getContent();
            if (name.equalsIgnoreCase("user"))
                user = value;
            else if (name.equalsIgnoreCase("pwd"))
                password = value;
            else
                props.put(name, value);
        }

        if (password == null)
            return Session.getInstance(props);
        else
            return Session.getInstance(props, new PasswordAuthenticator(user, password));
    }
    
    
    public void setUser (String user)
    {
       StringRefAddr addr =  (StringRefAddr)get("user");
       if (addr != null)
       {
         throw new RuntimeException ("user already set on SessionReference, can't be changed");
       }
       add(new StringRefAddr("user", user));
    }
    
    public void setPassword (String password)
    {
        StringRefAddr addr = (StringRefAddr)get("pwd");
        if (addr != null)
            throw new RuntimeException ("password already set on SessionReference, can't be changed");
        add(new StringRefAddr ("pwd", password));
    }
    
    public void setProperties (Properties properties)
    {
        Iterator entries = properties.entrySet().iterator();
        while (entries.hasNext())
        {
            Map.Entry e = (Map.Entry)entries.next();
            StringRefAddr sref = (StringRefAddr)get((String)e.getKey());
            if (sref != null)
                throw new RuntimeException ("property "+e.getKey()+" already set on Session reference, can't be changed");
            add(new StringRefAddr((String)e.getKey(), (String)e.getValue()));
        }
    }
    
  
    
}