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/*
* @(#)MultipartReport.java 1.7 07/05/04
*/
package com.sun.mail.dsn;
import java.io.*;
import java.util.Vector;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.*;
/**
* A multipart/report message content, as defined in
* <A HREF="http://www.ietf.org/rfc/rfc3462.txt">RFC 3462</A>.
* A multipart/report content is a container for mail reports
* of any kind, and is most often used to return a delivery
* status report. This class only supports that most common
* usage. <p>
*
* A MultipartReport object is a special type of MimeMultipart
* object with a restricted set of body parts. A MultipartReport
* object contains:
* <ul>
* <li>[Required] A human readable text message describing the
* reason the report was generated.</li>
* <li>[Required] A {@link DeliveryStatus} object containing the
* details for why the report was generated.</li>
* <li>[Optional] A returned copy of the entire message, or just
* its headers, which caused the generation of this report.
* </ul>
* Many of the normal MimeMultipart operations are restricted to
* ensure that the MultipartReport object always follows this
* structure.
*/
public class MultipartReport extends MimeMultipart {
protected boolean constructed; // true when done with constructor
/**
* Construct a multipart/report object with no content.
*/
public MultipartReport() throws MessagingException {
super("report");
// always at least two body parts
MimeBodyPart mbp = new MimeBodyPart();
setBodyPart(mbp, 0);
mbp = new MimeBodyPart();
setBodyPart(mbp, 1);
constructed = true;
}
/**
* Construct a multipart/report object with the specified plain
* text and delivery status to be returned to the user.
*/
public MultipartReport(String text, DeliveryStatus status)
throws MessagingException {
super("report");
ContentType ct = new ContentType(contentType);
ct.setParameter("report-type", "delivery-status");
contentType = ct.toString();
MimeBodyPart mbp = new MimeBodyPart();
mbp.setText(text);
setBodyPart(mbp, 0);
mbp = new MimeBodyPart();
mbp.setContent(status, "message/delivery-status");
setBodyPart(mbp, 1);
constructed = true;
}
/**
* Construct a multipart/report object with the specified plain
* text, delivery status, and original message to be returned to the user.
*/
public MultipartReport(String text, DeliveryStatus status,
MimeMessage msg) throws MessagingException {
this(text, status);
if (msg != null) {
MimeBodyPart mbp = new MimeBodyPart();
mbp.setContent(msg, "message/rfc822");
setBodyPart(mbp, 2);
}
}
/**
* Construct a multipart/report object with the specified plain
* text, delivery status, and headers from the original message
* to be returned to the user.
*/
public MultipartReport(String text, DeliveryStatus status,
InternetHeaders hdr) throws MessagingException {
this(text, status);
if (hdr != null) {
MimeBodyPart mbp = new MimeBodyPart();
mbp.setContent(new MessageHeaders(hdr), "text/rfc822-headers");
setBodyPart(mbp, 2);
}
}
/**
* Constructs a MultipartReport object and its bodyparts from the
* given DataSource. <p>
*
* @param ds DataSource, can be a MultipartDataSource
*/
public MultipartReport(DataSource ds) throws MessagingException {
super(ds);
parse();
constructed = true;
/*
* Can't fail to construct object because some programs just
* want to treat this as a Multipart and examine the parts.
*
if (getCount() < 2 || getCount() > 3) // XXX allow extra parts
throw new MessagingException(
"Wrong number of parts in multipart/report: " + getCount());
*/
}
/**
* Get the plain text to be presented to the user, if there is any.
* Rarely, the message may contain only HTML text, or no text at
* all. If the text body part of this multipart/report object is
* of type text/plain, or if it is of type multipart/alternative
* and contains a text/plain part, the text from that part is
* returned. Otherwise, null is return and the {@link #getTextBodyPart
* getTextBodyPart} method may be used to extract the data.
*/
public synchronized String getText() throws MessagingException {
try {
BodyPart bp = getBodyPart(0);
if (bp.isMimeType("text/plain"))
return (String)bp.getContent();
if (bp.isMimeType("multipart/alternative")) {
Multipart mp = (Multipart)bp.getContent();
for (int i = 0; i < mp.getCount(); i++) {
bp = mp.getBodyPart(i);
if (bp.isMimeType("text/plain"))
return (String)bp.getContent();
}
}
} catch (IOException ex) {
throw new MessagingException("Exception getting text content", ex);
}
return null;
}
/**
* Set the message to be presented to the user as just a text/plain
* part containing the specified text.
*/
public synchronized void setText(String text) throws MessagingException {
MimeBodyPart mbp = new MimeBodyPart();
mbp.setText(text);
setBodyPart(mbp, 0);
}
/**
* Return the body part containing the message to be presented to
* the user, usually just a text/plain part.
*/
public synchronized MimeBodyPart getTextBodyPart()
throws MessagingException {
return (MimeBodyPart)getBodyPart(0);
}
/**
* Set the body part containing the text to be presented to the
* user. Usually this a text/plain part, but it might also be
* a text/html part or a multipart/alternative part containing
* text/plain and text/html parts. Any type is allowed here
* but these types are most common.
*/
public synchronized void setTextBodyPart(MimeBodyPart mbp)
throws MessagingException {
setBodyPart(mbp, 0);
}
/**
* Get the delivery status associated with this multipart/report.
*/
public synchronized DeliveryStatus getDeliveryStatus()
throws MessagingException {
if (getCount() < 2)
return null;
BodyPart bp = getBodyPart(1);
if (!bp.isMimeType("message/delivery-status"))
return null;
try {
return (DeliveryStatus)bp.getContent();
} catch (IOException ex) {
throw new MessagingException("IOException getting DeliveryStatus",
ex);
}
}
/**
* Set the delivery status associated with this multipart/report.
*/
public synchronized void setDeliveryStatus(DeliveryStatus status)
throws MessagingException {
MimeBodyPart mbp = new MimeBodyPart();
mbp.setContent(status, "message/delivery-status");
setBodyPart(mbp, 2);
ContentType ct = new ContentType(contentType);
ct.setParameter("report-type", "delivery-status");
contentType = ct.toString();
}
/**
* Get the original message that is being returned along with this
* multipart/report. If no original message is included, null is
* returned. In some cases only the headers of the original
* message will be returned as an object of type MessageHeaders.
*/
public synchronized MimeMessage getReturnedMessage()
throws MessagingException {
if (getCount() < 3)
return null;
BodyPart bp = getBodyPart(2);
if (!bp.isMimeType("message/rfc822") &&
!bp.isMimeType("text/rfc822-headers"))
return null;
try {
return (MimeMessage)bp.getContent();
} catch (IOException ex) {
throw new MessagingException("IOException getting ReturnedMessage",
ex);
}
}
/**
* Set the original message to be returned as part of the
* multipart/report. If msg is null, any previously set
* returned message or headers is removed.
*/
public synchronized void setReturnedMessage(MimeMessage msg)
throws MessagingException {
if (msg == null) {
BodyPart part = (BodyPart)parts.elementAt(2);
super.removeBodyPart(2);
return;
}
MimeBodyPart mbp = new MimeBodyPart();
if (msg instanceof MessageHeaders)
mbp.setContent(msg, "text/rfc822-headers");
else
mbp.setContent(msg, "message/rfc822");
setBodyPart(mbp, 2);
}
private synchronized void setBodyPart(BodyPart part, int index)
throws MessagingException {
if (parts == null) // XXX - can never happen?
parts = new Vector();
if (index < parts.size())
super.removeBodyPart(index);
super.addBodyPart(part, index);
}
// Override Multipart methods to preserve integrity of multipart/report.
/**
* Set the subtype. Throws MessagingException.
*
* @param subtype Subtype
* @exception MessagingException always; can't change subtype
*/
public synchronized void setSubType(String subtype)
throws MessagingException {
throw new MessagingException("Can't change subtype of MultipartReport");
}
/**
* Remove the specified part from the multipart message.
* Not allowed on a multipart/report object.
*
* @param part The part to remove
* @exception MessagingException always
*/
public boolean removeBodyPart(BodyPart part) throws MessagingException {
throw new MessagingException(
"Can't remove body parts from multipart/report");
}
/**
* Remove the part at specified location (starting from 0).
* Not allowed on a multipart/report object.
*
* @param index Index of the part to remove
* @exception MessagingException always
*/
public void removeBodyPart(int index) throws MessagingException {
throw new MessagingException(
"Can't remove body parts from multipart/report");
}
/**
* Adds a Part to the multipart.
* Not allowed on a multipart/report object.
*
* @param part The Part to be appended
* @exception MessagingException always
*/
public synchronized void addBodyPart(BodyPart part)
throws MessagingException {
// Once constructor is done, don't allow this anymore.
if (!constructed)
super.addBodyPart(part);
else
throw new MessagingException(
"Can't add body parts to multipart/report 1");
}
/**
* Adds a BodyPart at position <code>index</code>.
* Not allowed on a multipart/report object.
*
* @param part The BodyPart to be inserted
* @param index Location where to insert the part
* @exception MessagingException always
*/
public synchronized void addBodyPart(BodyPart part, int index)
throws MessagingException {
throw new MessagingException(
"Can't add body parts to multipart/report 2");
}
}
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