javamailconnectionfactoryimpl.java

一个java写的加密算法

/*
 * Copyright 2004-2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

package samples.connectors.mailconnector.ra.outbound;

import java.io.*;
import java.util.*;
import java.util.logging.*;
import javax.resource.Referenceable;
import javax.resource.cci.*;
import javax.resource.spi.*;
import javax.resource.ResourceException;
import javax.naming.Reference;

import samples.connectors.mailconnector.api.*;
import samples.connectors.mailconnector.share.*;


/**
 * This implementation class provides an interface for getting a connection 
 * to a Mail Server. It looks up a ConnectionFactory instance in the JNDI 
 * namespace and uses it to get Mail Server connections. 
 */

public class JavaMailConnectionFactoryImpl implements 
    JavaMailConnectionFactory, Serializable, Referenceable
{
    static Logger logger = 
        Logger.getLogger("samples.connectors.mailconnector.ra.outbound");
    ResourceBundle resource = 
        ResourceBundle.getBundle("samples.connectors.mailconnector.ra.outbound.ConnectionFactory");

    private ManagedConnectionFactory mcf;
    private ConnectionManager cm;
  
    // Local variables

    private Reference reference;
    private transient PrintWriter out;
    private transient int milliseconds;


    /**
     * JavaMailConnectionFactoryImpl constructor (no arguments).
     */

    public JavaMailConnectionFactoryImpl() { }

    /**
     * JavaMailConnectionFactoryImpl constructor.
     *
     * @param mcf  the ManagedConnectionFactory that created this 
     *             JavaMailConnectionFactory instance
     * @param cm   the ConnectionManager
     */

    public JavaMailConnectionFactoryImpl(ManagedConnectionFactory mcf, 
                                         ConnectionManager cm) 
    {
        logger.info(" 3. JavaMailConnectionFactoryImpl::Constructor"); 
        this.mcf = mcf;
        if (cm == null) 
	{
            this.cm = new ConnectionManagerImpl();
        } else {
            this.cm = cm;
        }
    }

    /**
     * Gets a connection to the Mail Server.
     * Passes along mail server and user info.
     *
     * @return Connection	Connection instance
     */

    public JavaMailConnection createConnection() 
	throws ResourceException
    {
        JavaMailConnection con = null;

        logger.info(" 3.- JMCFI::createConnection -- Client requested a connection. Get it from Connection Manager"); 
        
	// Use the default values of the Managed connection factory

        con = (JavaMailConnection) cm.allocateConnection(mcf, null);

        logger.info(" 6.- JMCFI::createConnection -- Returning Connection to Client"); 

        return con;
    }


    /**
     * Gets a connection to a Mail Server instance. A component should use 
     * the getConnection variant with a javax.resource.cci.ConnectionSpec 
     * parameter if it needs to pass any resource-adapter-specific security 
     * information and connection parameters.
     *
     * @param properties   connection parameters and security information 
     *                     specified as ConnectionSpec instance
     * @return a JavaMailConnection instance
     */

    public JavaMailConnection createConnection(ConnectionSpec properties) 
	throws ResourceException
    {
        JavaMailConnection con = null;

        logger.info(" 3.- JMCFI::createConnection -- Client requested a connection. Get it from Connection Manager"); 

        ConnectionRequestInfoImpl info =
            new ConnectionRequestInfoImpl(
		    ((ConnectionSpecImpl)properties).getUserName(),
		    ((ConnectionSpecImpl)properties).getPassword(),
		    ((ConnectionSpecImpl)properties).getFolderName(),
		    ((ConnectionSpecImpl)properties).getServerName(),
		    ((ConnectionSpecImpl)properties).getProtocol());


        con = (JavaMailConnection)cm.allocateConnection(mcf, info);

	logger.info(" 6.- JMCFI::createConnection -- Returning Connection to user");

        return con;
    }
   
    /**
     * Sets the log writer for the ConnectionFactory instance. 
     * The log writer is a character output stream to which all logging and 
     * tracing messages for the Connectionfactory instance will be printed.
     *
     * @param out log writer associated with the ConnectionFactory
     */

    public void setLogWriter(PrintWriter out) 
	throws ResourceException
    {
        this.out=out;
    }


    /**
     * Gets the log writer for the ConnectionFactory instance.
     *
     * @return PrintWriter  log writer associated with the ConnectionFactory
     */

    public PrintWriter getLogWriter() 
	throws ResourceException
    {
        return out;
    }


    /**
     * Sets the maximum time in milliseconds that this connection factory will 
     * wait while attempting to connect to a Mail Server. A value of zero 
     * specifies that the timeout is the default system timeout if there is 
     * one; otherwise it specifies that there is no timeout. When a 
     * ConnectionFactory object is created, the timeout is initially zero.
     *
     * @param milliseconds  connection establishment timeout in milliseconds
     */

    public void setTimeout(int milliseconds) 
	throws ResourceException
    {
        this.milliseconds = milliseconds;
    }


    /**
     * Gets the maximum time in milliseconds that this connection factory can 
     * wait while attempting to connect to a Mail Server.
     *
     * @return  connection establishment timeout in milliseconds
     */

    public int getTimeout() 
	throws ResourceException
    {
        return milliseconds;
    }


    /**
     * This method is declared in the javax.resource.Referenceable interface 
     * and should be implemented in order to support JNDI registration.
     *
     * @param reference  a Reference instance
     */

    public void setReference(Reference reference) 
    {
        logger.info("In JavaMailConnectionFactoryImpl::setReference");
        this.reference = reference;
    }


    /**
     * This method is declared in the javax.naming.Referenceable interface 
     * and should be implemented in order to support JNDI registration.
     *
     * @return  a Reference instance
     */

    public Reference getReference() 
    {
        logger.info("In JavaMailConnectionFactoryImpl::getReference");
        return reference;
    }
}