* * Used by providers. * * @param headers The header of this part * @param content bytes representing the body of this part. */ public SunV3BodyPart(InternetHeaders headers, byte[] content) throws MessagingException { super(headers, content); } /** * Return the size of the content of this BodyPart in bytes. * Return -1 if the size cannot be determined.
* * Note that this number may not be an exact measure of the * content size and may or may not account for any transfer * encoding of the content.
* * @return size in bytes */ public int getSize() throws MessagingException { String s = getHeader("X-Sun-Content-Length", null); try { return Integer.parseInt(s); } catch (NumberFormatException ex) { return -1; } } /** * Return the number of lines for the content of this Part. * Return -1 if this number cannot be determined.
* * Note that this number may not be an exact measure of the * content length and may or may not account for any transfer * encoding of the content. */ public int getLineCount() throws MessagingException { String s = getHeader("X-Sun-Content-Lines", null); try { return Integer.parseInt(s); } catch (NumberFormatException ex) { return -1; } } /* * This is just enough to get us going. * * For more complete transformation from V3 to MIME, refer to * sun_att.c from the Sun IMAP server code. */ static class MimeV3Map { String mime; String v3; MimeV3Map(String mime, String v3) { this.mime = mime; this.v3 = v3; } private static MimeV3Map[] mimeV3Table = new MimeV3Map[] { new MimeV3Map("text/plain", "text"), new MimeV3Map("text/plain", "default"), new MimeV3Map("multipart/x-sun-attachment", "X-sun-attachment"), new MimeV3Map("application/postscript", "postscript-file"), new MimeV3Map("image/gif", "gif-file") // audio-file // cshell-script }; // V3 Content-Type to MIME Content-Type static String toMime(String s) { for (int i = 0; i < mimeV3Table.length; i++) { if (mimeV3Table[i].v3.equalsIgnoreCase(s)) return mimeV3Table[i].mime; } return "application/x-" + s; } // MIME Content-Type to V3 Content-Type static String toV3(String s) { for (int i = 0; i < mimeV3Table.length; i++) { if (mimeV3Table[i].mime.equalsIgnoreCase(s)) return mimeV3Table[i].v3; } return s; } } /** * Returns the value of the RFC822 "Content-Type" header field. * This represents the content-type of the content of this * BodyPart. This value must not be null. If this field is * unavailable, "text/plain" should be returned.
*
* This implementation uses getHeader(name)
* to obtain the requisite header field.
*
* @return Content-Type of this BodyPart
*/
public String getContentType() throws MessagingException {
String ct = getHeader("Content-Type", null);
if (ct == null)
ct = getHeader("X-Sun-Data-Type", null);
if (ct == null)
ct = "text/plain";
else if (ct.indexOf('/') < 0)
ct = MimeV3Map.toMime(ct);
return ct;
}
/**
* Returns the value of the "Content-Transfer-Encoding" header
* field. Returns null if the header is unavailable
* or its value is absent.
*
* This implementation uses getHeader(name)
* to obtain the requisite header field.
*
* @see #headers
*/
public String getEncoding() throws MessagingException {
String enc = super.getEncoding();
if (enc == null)
enc = getHeader("X-Sun-Encoding-Info", null);
return enc;
}
/**
* Returns the "Content-Description" header field of this BodyPart.
* This typically associates some descriptive information with
* this part. Returns null if this field is unavailable or its
* value is absent.
* * If the Content-Description field is encoded as per RFC 2047, * it is decoded and converted into Unicode. If the decoding or * conversion fails, the raw data is returned as-is
*
* This implementation uses getHeader(name)
* to obtain the requisite header field.
*
* @return content-description
*/
public String getDescription() throws MessagingException {
String desc = super.getDescription();
if (desc == null)
desc = getHeader("X-Sun-Data-Description", null);
return desc;
}
/**
* Set the "Content-Description" header field for this BodyPart.
* If the description parameter is null, then any
* existing "Content-Description" fields are removed.
*
* If the description contains non US-ASCII characters, it will
* be encoded using the platform's default charset. If the
* description contains only US-ASCII characters, no encoding
* is done and it is used as-is.
*
* @param description content-description
* @exception IllegalWriteException if the underlying
* implementation does not support modification
* @exception IllegalStateException if this BodyPart is
* obtained from a READ_ONLY folder.
*/
public void setDescription(String description) throws MessagingException {
throw new MethodNotSupportedException("SunV3BodyPart not writable");
}
/**
* Set the "Content-Description" header field for this BodyPart.
* If the description parameter is null, then any
* existing "Content-Description" fields are removed.
* * If the description contains non US-ASCII characters, it will * be encoded using the specified charset. If the description * contains only US-ASCII characters, no encoding is done and * it is used as-is * * @param description Description * @param charset Charset for encoding * @exception IllegalWriteException if the underlying * implementation does not support modification * @exception IllegalStateException if this BodyPart is * obtained from a READ_ONLY folder. */ public void setDescription(String description, String charset) throws MessagingException { throw new MethodNotSupportedException("SunV3BodyPart not writable"); } /** * Get the filename associated with this BodyPart.
*
* Returns the value of the "filename" parameter from the
* "Content-Disposition" header field of this BodyPart. If its
* not available, returns the value of the "name" parameter from
* the "Content-Type" header field of this BodyPart.
* Returns null if both are absent.
*
* @return filename
*/
public String getFileName() throws MessagingException {
String name = super.getFileName();
if (name == null)
name = getHeader("X-Sun-Data-Name", null);
return name;
}
/**
* Set the filename associated with this BodyPart, if possible.
* * Sets the "filename" parameter of the "Content-Disposition" * header field of this BodyPart. * * @exception IllegalWriteException if the underlying * implementation does not support modification * @exception IllegalStateException if this BodyPart is * obtained from a READ_ONLY folder. */ public void setFileName(String filename) throws MessagingException { throw new MethodNotSupportedException("SunV3BodyPart not writable"); } /** * This method provides the mechanism to set this BodyPart's content. * The given DataHandler object should wrap the actual content. * * @param dh The DataHandler for the content * @exception IllegalWriteException if the underlying * implementation does not support modification * @exception IllegalStateException if this BodyPart is * obtained from a READ_ONLY folder. */ public void setDataHandler(DataHandler dh) throws MessagingException { throw new MethodNotSupportedException("SunV3BodyPart not writable"); } /** * Output the BodyPart as a RFC822 format stream. * * @exception MessagingException * @exception IOException if an error occurs writing to the * stream or if an error is generated * by the javax.activation layer. * @see javax.activation.DataHandler#writeTo() */ public void writeTo(OutputStream os) throws IOException, MessagingException { throw new MethodNotSupportedException("SunV3BodyPart writeTo"); } /** * This is the method that has the 'smarts' to query the 'content' * and update the appropriate headers. Typical headers that get * set here are: Content-Type, Content-Encoding, boundary (for * multipart). Now, the tricky part here is when to actually * activate this method: * * - A Message being crafted by a mail-application will certainly * need to activate this method at some point to fill up its internal * headers. Typically this is triggered off by our writeTo() method. * * - A message read-in from a MessageStore will have obtained * all its headers from the store, and so does'nt need this. * However, if this message is editable and if any edits have * been made to either the content or message-structure, we might * need to resync our headers. Typically this is triggered off by * the Message.saveChanges() methods. */ protected void updateHeaders() throws MessagingException { throw new MethodNotSupportedException("SunV3BodyPart updateHeaders"); } }