Qsmtp
Class Qsmtp

java.lang.Object
  |
  +--Qsmtp.Qsmtp

All Implemented Interfaces:

java.lang.Runnable

public class Qsmtp

extends java.lang.Object

implements java.lang.Runnable

SMTP mailer class, used to send email messages (with optional HTML MIME attachments) through direct TCP/IP communication with Internet SMTP mail servers.

The Qsmtp constructors take an address for a SMTP mail server, and all messages subsequently sent out by the Qstmp object are handled by that SMTP server.

Once created, a Qsmtp object can be used to send any number of messages through that mail server. Each call to sendmsg or sendHTMLmsg opens a separate SMTP connection to the designated mail server and transmits a single message.

Because this class opens a socket to a potentially remote TCP/IP server, this class may not function properly when used within an applet.

Field Summary

private java.net.InetAddress	address
private java.lang.Thread	backgroundThread
(package private) static boolean	debug
(package private) static int	DEFAULT_PORT
(package private) static java.lang.String	EOL
private java.lang.String	hostid
private int	port
private java.util.Vector	queuedMessages
private boolean	threaded

Constructor Summary

Qsmtp(java.net.InetAddress address)

Qsmtp(java.net.InetAddress address, int port)

Qsmtp(java.lang.String hostid)

Qsmtp(java.lang.String hostid, int port)

Method Summary

private void	dispatchMessage(Qsmtp.messageObject msgObj) This method handles the actual mail-out
static java.lang.String	formatDate(java.util.Date date) This method returns a properly mail-formatted date string.
void	goThreaded() After this method is called, all further sendmsg() calls will not directly send mail themselves, but will rather queue the mail for sending by a back-ground thread.
void	run() Main worker routine for the background thread which handles mail-outs.
void	sendHTMLmsg(java.lang.String from_address, java.util.Vector to_addresses, java.lang.String subject, java.lang.String htmlBody, java.lang.String htmlFilename, java.lang.String textBody) Sends a message with a MIME-attached HTML message
void	sendmsg(java.lang.String from_address, java.util.Vector to_addresses, java.lang.String subject, java.lang.String message) Sends a plain ASCII mail message
void	sendmsg(java.lang.String from_address, java.util.Vector to_addresses, java.lang.String subject, java.lang.String message, java.util.Vector extraHeaders) Sends a mail message with some custom-specified envelope headers.
void	stopThreaded() Calling this method turns off the background thread and returns Qsmtp to normal blocking operation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

debug

static final boolean debug

See Also:

Constant Field Values

DEFAULT_PORT

static final int DEFAULT_PORT

See Also:

Constant Field Values

EOL

static final java.lang.String EOL

See Also:

Constant Field Values

hostid

private java.lang.String hostid

address

private java.net.InetAddress address

port

private int port

queuedMessages

private java.util.Vector queuedMessages

threaded

private boolean threaded

backgroundThread

private java.lang.Thread backgroundThread

Constructor Detail

Qsmtp

public Qsmtp(java.lang.String hostid)

Qsmtp

public Qsmtp(java.lang.String hostid,
             int port)

Qsmtp

public Qsmtp(java.net.InetAddress address)

Qsmtp

public Qsmtp(java.net.InetAddress address,
             int port)

Method Detail

goThreaded

public void goThreaded()

After this method is called, all further sendmsg() calls will not directly send mail themselves, but will rather queue the mail for sending by a back-ground thread.

One result of this is that after this is called, the sendmsg() methods will never throw Protcol or IO Exceptions, and no success/failure results will be returned.

If this method is called while an previous background thread that was ordered to stop by stopThreaded() is still shutting down, this method will block until the old background thread dies and the new background thread can be established.

stopThreaded

public void stopThreaded()

Calling this method turns off the background thread and returns Qsmtp to normal blocking operation.

sendmsg

public void sendmsg(java.lang.String from_address,
                    java.util.Vector to_addresses,
                    java.lang.String subject,
                    java.lang.String message)
             throws java.io.IOException

Sends a plain ASCII mail message

Parameters:

from_address - Who is sending this message?

to_addresses - Vector of string addresses to send this message to

subject - Subject for this message

message - The text for the mail message

Throws:

java.io.IOException

sendHTMLmsg

public void sendHTMLmsg(java.lang.String from_address,
                        java.util.Vector to_addresses,
                        java.lang.String subject,
                        java.lang.String htmlBody,
                        java.lang.String htmlFilename,
                        java.lang.String textBody)
                 throws java.io.IOException

Sends a message with a MIME-attached HTML message

In a perfect world, we'd do a generic MIME-capable mail system here, but as it is, we only support HTML.

Parameters:

from_address - Who is sending this message?

to_addresses - Vector of string addresses to send this message to

subject - Subject for this message

htmlBody - A string containing the HTML document to be sent

htmlFilename - The name to label the HTML document with, will show up in mail clients

textBody - The text for the non-HTML part of the mail message

Throws:

java.io.IOException

sendmsg

public void sendmsg(java.lang.String from_address,
                    java.util.Vector to_addresses,
                    java.lang.String subject,
                    java.lang.String message,
                    java.util.Vector extraHeaders)
             throws java.io.IOException

Sends a mail message with some custom-specified envelope headers. Used internally by the other Qsmtp sendmsg and sendHTMLmsg methods.

Parameters:

from_address - Who is sending this message?

to_addresses - Vector of string addresses to send this message to

subject - Subject for this message

message - The text for the mail message

extraHeaders - Vector of string headers to include in the message's envelope

Throws:

java.io.IOException

run

public void run()

Main worker routine for the background thread which handles mail-outs.

Specified by:

run in interface java.lang.Runnable

dispatchMessage

private void dispatchMessage(Qsmtp.messageObject msgObj)
                      throws java.io.IOException

This method handles the actual mail-out

Throws:

java.io.IOException

formatDate

public static java.lang.String formatDate(java.util.Date date)

This method returns a properly mail-formatted date string.