File	Doc	Category	Size	Date	Package
MimePartDataSource.java	API Doc	Glassfish v2 API	6769	Mon May 14 15:28:50 BST 2007	javax.mail.internet

MimePartDataSource

• java.lang.Object

Fields Summary
protected MimePart	part The MimePart that provides the data for this DataSource.
private MessageContext	context
private static boolean	ignoreMultipartEncoding

Constructors Summary
public MimePartDataSource(MimePart part) Constructor, that constructs a DataSource from a MimePart. try { String s = System.getProperty("mail.mime.ignoremultipartencoding"); // default to true ignoreMultipartEncoding = s == null || !s.equalsIgnoreCase("false"); } catch (SecurityException sex) { // ignore it } this.part = part;

Methods Summary
public java.lang.String	getContentType() Returns the content-type of this DataSource. This implementation just invokes the getContentType method on the MimePart. try { return part.getContentType(); } catch (MessagingException mex) { // would like to be able to reflect the exception to the // application, but since we can't do that we return a // generic "unknown" value here and hope for another // exception later. return "application/octet-stream"; }
public java.io.InputStream	getInputStream() Returns an input stream from this MimePart. This method applies the appropriate transfer-decoding, based on the Content-Transfer-Encoding attribute of this MimePart. Thus the returned input stream is a decoded stream of bytes. This implementation obtains the raw content from the Part using the getContentStream() method and decodes it using the MimeUtility.decode() method. see javax.mail.internet.MimeMessage#getContentStream see javax.mail.internet.MimeBodyPart#getContentStream see javax.mail.internet.MimeUtility#decode return decoded input stream InputStream is; try { if (part instanceof MimeBodyPart) is = ((MimeBodyPart)part).getContentStream(); else if (part instanceof MimeMessage) is = ((MimeMessage)part).getContentStream(); else throw new MessagingException("Unknown part"); String encoding = restrictEncoding(part.getEncoding(), part); if (encoding != null) return MimeUtility.decode(is, encoding); else return is; } catch (MessagingException mex) { throw new IOException(mex.getMessage()); }
public synchronized javax.mail.MessageContext	getMessageContext() Return the MessageContext for the current part. since JavaMail 1.1 if (context == null) context = new MessageContext(part); return context;
public java.lang.String	getName() DataSource method to return a name. This implementation just returns an empty string. try { if (part instanceof MimeBodyPart) return ((MimeBodyPart)part).getFileName(); } catch (MessagingException mex) { // ignore it } return "";
public java.io.OutputStream	getOutputStream() DataSource method to return an output stream. This implementation throws the UnknownServiceException. throw new UnknownServiceException();
private static java.lang.String	restrictEncoding(java.lang.String encoding, javax.mail.internet.MimePart part) Restrict the encoding to values allowed for the Content-Type of the specified MimePart. Returns either the original encoding or null. if (!ignoreMultipartEncoding || encoding == null) return encoding; if (encoding.equalsIgnoreCase("7bit") || encoding.equalsIgnoreCase("8bit") || encoding.equalsIgnoreCase("binary")) return encoding; // these encodings are always valid String type = part.getContentType(); if (type == null) return encoding; try { /* * multipart and message types aren't allowed to have * encodings except for the three mentioned above. * If it's one of these types, ignore the encoding. */ ContentType cType = new ContentType(type); if (cType.match("multipart/*") || cType.match("message/*")) return null; } catch (ParseException pex) { // ignore it } return encoding;