File	Doc	Category	Size	Date	Package
MimeBodyPart.java	API Doc	JavaMail 1.4.3	49063	Tue Nov 17 10:38:12 GMT 2009	javax.mail.internet

MimeBodyPart

• java.lang.Object
  • javax.mail.BodyPart

Fields Summary
private static boolean	setDefaultTextCharset
private static boolean	setContentTypeFileName
private static boolean	encodeFileName
private static boolean	decodeFileName
static boolean	cacheMultipart
protected DataHandler	dh The DataHandler object representing this Part's content.
protected byte[]	content Byte array that holds the bytes of the content of this Part.
protected InputStream	contentStream If the data for this body part was supplied by an InputStream that implements the SharedInputStream interface, contentStream is another such stream representing the content of this body part. In this case, content will be null.
protected InternetHeaders	headers The InternetHeaders object that stores all the headers of this body part.
private Object	cachedContent If our content is a Multipart of Message object, we save it the first time it's created by parsing a stream so that changes to the contained objects will not be lost.

Constructors Summary
public MimeBodyPart() An empty MimeBodyPart object is created. This body part maybe filled in by a client constructing a multipart message. super(); headers = new InternetHeaders();
public MimeBodyPart(InputStream is) Constructs a MimeBodyPart by reading and parsing the data from the specified input stream. The parser consumes data till the end of the given input stream. The input stream must start at the beginning of a valid MIME body part and must terminate at the end of that body part. Note that the "boundary" string that delimits body parts must not be included in the input stream. The intention is that the MimeMultipart parser will extract each body part's bytes from a multipart stream and feed them into this constructor, without the delimiter strings. param is the body part Input Stream if (!(is instanceof ByteArrayInputStream) && !(is instanceof BufferedInputStream) && !(is instanceof SharedInputStream)) is = new BufferedInputStream(is); headers = new InternetHeaders(is); if (is instanceof SharedInputStream) { SharedInputStream sis = (SharedInputStream)is; contentStream = sis.newStream(sis.getPosition(), -1); } else { try { content = ASCIIUtility.getBytes(is); } catch (IOException ioex) { throw new MessagingException("Error reading input stream", ioex); } }
public MimeBodyPart(InternetHeaders headers, byte[] content) Constructs a MimeBodyPart using the given header and content bytes. Used by providers. param headers The header of this part param content bytes representing the body of this part. super(); this.headers = headers; this.content = content;

Methods Summary
public void	addHeader(java.lang.String name, java.lang.String value) Add this value to the existing values for this header_name. Note that RFC 822 headers must contain only US-ASCII characters, so a header that contains non US-ASCII characters must be encoded as per the rules of RFC 2047. param name header name param value header value see javax.mail.internet.MimeUtility headers.addHeader(name, value);
public void	addHeaderLine(java.lang.String line) Add a header line to this body part headers.addHeaderLine(line);
public void	attachFile(java.io.File file) Use the specified file to provide the data for this part. The simple file name is used as the file name for this part and the data in the file is used as the data for this part. The encoding will be chosen appropriately for the file data. param file the File object to attach exception IOException errors related to accessing the file exception MessagingException message related errors since JavaMail 1.4 FileDataSource fds = new FileDataSource(file); this.setDataHandler(new DataHandler(fds)); this.setFileName(fds.getName());
public void	attachFile(java.lang.String file) Use the specified file to provide the data for this part. The simple file name is used as the file name for this part and the data in the file is used as the data for this part. The encoding will be chosen appropriately for the file data. param file the name of the file to attach exception IOException errors related to accessing the file exception MessagingException message related errors since JavaMail 1.4 File f = new File(file); attachFile(f);
public java.util.Enumeration	getAllHeaderLines() Get all header lines as an Enumeration of Strings. A Header line is a raw RFC 822 header line, containing both the "name" and "value" field. return headers.getAllHeaderLines();
public java.util.Enumeration	getAllHeaders() Return all the headers from this Message as an Enumeration of Header objects. return headers.getAllHeaders();
public java.lang.Object	getContent() Return the content as a Java object. The type of the object returned is of course dependent on the content itself. For example, the native format of a text/plain content is usually a String object. The native format for a "multipart" content is always a Multipart subclass. For content types that are unknown to the DataHandler system, an input stream is returned as the content. This implementation obtains the content from the DataHandler. That is, it invokes getDataHandler().getContent(); If the content is a Multipart or Message object and was created by parsing a stream, the object is cached and returned in subsequent calls so that modifications to the content will not be lost. return Object exception MessagingException exception IOException this is typically thrown by the DataHandler. Refer to the documentation for javax.activation.DataHandler for more details. if (cachedContent != null) return cachedContent; Object c; try { c = getDataHandler().getContent(); } catch (FolderClosedIOException fex) { throw new FolderClosedException(fex.getFolder(), fex.getMessage()); } catch (MessageRemovedIOException mex) { throw new MessageRemovedException(mex.getMessage()); } if (cacheMultipart && (c instanceof Multipart || c instanceof Message) && (content != null || contentStream != null)) { cachedContent = c; } return c;
public java.lang.String	getContentID() Returns the value of the "Content-ID" header field. Returns null if the field is unavailable or its value is absent. This implementation uses getHeader(name) to obtain the requisite header field. return getHeader("Content-Id", null);
public java.lang.String[]	getContentLanguage() Get the languages specified in the Content-Language header of this MimePart. The Content-Language header is defined by RFC 1766. Returns null if this header is not available or its value is absent. This implementation uses getHeader(name) to obtain the requisite header field. return getContentLanguage(this);
static java.lang.String[]	getContentLanguage(javax.mail.internet.MimePart part) String s = part.getHeader("Content-Language", null); if (s == null) return null; // Tokenize the header to obtain the Language-tags (skip comments) HeaderTokenizer h = new HeaderTokenizer(s, HeaderTokenizer.MIME); Vector v = new Vector(); HeaderTokenizer.Token tk; int tkType; while (true) { tk = h.next(); // get a language-tag tkType = tk.getType(); if (tkType == HeaderTokenizer.Token.EOF) break; // done else if (tkType == HeaderTokenizer.Token.ATOM) v.addElement(tk.getValue()); else // invalid token, skip it. continue; } if (v.size() == 0) return null; String[] language = new String[v.size()]; v.copyInto(language); return language;
public java.lang.String	getContentMD5() Return the value of the "Content-MD5" header field. Returns null if this field is unavailable or its value is absent. This implementation uses getHeader(name) to obtain the requisite header field. return getHeader("Content-MD5", null);
protected java.io.InputStream	getContentStream() Produce the raw bytes of the content. This method is used when creating a DataHandler object for the content. Subclasses that can provide a separate input stream for just the Part content might want to override this method. see #content see MimeMessage#getContentStream if (contentStream != null) return ((SharedInputStream)contentStream).newStream(0, -1); if (content != null) return new ByteArrayInputStream(content); throw new MessagingException("No content");
public java.lang.String	getContentType() Returns the value of the RFC 822 "Content-Type" header field. This represents the content type of the content of this body part. 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 body part String s = getHeader("Content-Type", null); if (s == null) s = "text/plain"; return s;
public javax.activation.DataHandler	getDataHandler() Return a DataHandler for this body part's content. The implementation provided here works just like the the implementation in MimeMessage. see MimeMessage#getDataHandler if (dh == null) dh = new MimePartDataHandler(new MimePartDataSource(this)); return dh;
public java.lang.String	getDescription() Returns the "Content-Description" header field of this body part. 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 return getDescription(this);
static java.lang.String	getDescription(javax.mail.internet.MimePart part) String rawvalue = part.getHeader("Content-Description", null); if (rawvalue == null) return null; try { return MimeUtility.decodeText(MimeUtility.unfold(rawvalue)); } catch (UnsupportedEncodingException ex) { return rawvalue; }
static java.lang.String	getDisposition(javax.mail.internet.MimePart part) String s = part.getHeader("Content-Disposition", null); if (s == null) return null; ContentDisposition cd = new ContentDisposition(s); return cd.getDisposition();
public java.lang.String	getDisposition() Returns the value of the "Content-Disposition" header field. This represents the disposition of this part. The disposition describes how the part should be presented to the user. If the Content-Disposition field is unavailable, null is returned. This implementation uses getHeader(name) to obtain the requisite header field. see #headers return getDisposition(this);
public java.lang.String	getEncoding() Returns the content transfer encoding from 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 return getEncoding(this);
static java.lang.String	getEncoding(javax.mail.internet.MimePart part) String s = part.getHeader("Content-Transfer-Encoding", null); if (s == null) return null; s = s.trim(); // get rid of trailing spaces // quick check for known values to avoid unnecessary use // of tokenizer. if (s.equalsIgnoreCase("7bit") || s.equalsIgnoreCase("8bit") || s.equalsIgnoreCase("quoted-printable") || s.equalsIgnoreCase("binary") || s.equalsIgnoreCase("base64")) return s; // Tokenize the header to obtain the encoding (skip comments) HeaderTokenizer h = new HeaderTokenizer(s, HeaderTokenizer.MIME); HeaderTokenizer.Token tk; int tkType; for (;;) { tk = h.next(); // get a token tkType = tk.getType(); if (tkType == HeaderTokenizer.Token.EOF) break; // done else if (tkType == HeaderTokenizer.Token.ATOM) return tk.getValue(); else // invalid token, skip it. continue; } return s;
public java.lang.String	getFileName() Get the filename associated with this body part. Returns the value of the "filename" parameter from the "Content-Disposition" header field of this body part. If its not available, returns the value of the "name" parameter from the "Content-Type" header field of this body part. Returns null if both are absent. If the mail.mime.encodefilename System property is set to true, the {@link MimeUtility#decodeText MimeUtility.decodeText} method will be used to decode the filename. While such encoding is not supported by the MIME spec, many mailers use this technique to support non-ASCII characters in filenames. The default value of this property is false. return filename return getFileName(this);
static java.lang.String	getFileName(javax.mail.internet.MimePart part) String filename = null; String s = part.getHeader("Content-Disposition", null); if (s != null) { // Parse the header .. ContentDisposition cd = new ContentDisposition(s); filename = cd.getParameter("filename"); } if (filename == null) { // Still no filename ? Try the "name" ContentType parameter s = part.getHeader("Content-Type", null); if (s != null) { try { ContentType ct = new ContentType(s); filename = ct.getParameter("name"); } catch (ParseException pex) { } // ignore it } } if (decodeFileName && filename != null) { try { filename = MimeUtility.decodeText(filename); } catch (UnsupportedEncodingException ex) { throw new MessagingException("Can't decode filename", ex); } } return filename;
public java.lang.String[]	getHeader(java.lang.String name) Get all the headers for this header_name. Note that certain headers may be encoded as per RFC 2047 if they contain non US-ASCII characters and these should be decoded. param name name of header return array of headers see javax.mail.internet.MimeUtility return headers.getHeader(name);
public java.lang.String	getHeader(java.lang.String name, java.lang.String delimiter) Get all the headers for this header name, returned as a single String, with headers separated by the delimiter. If the delimiter is null, only the first header is returned. param name the name of this header param delimiter delimiter between fields in returned string return the value fields for all headers with this name exception MessagingException return headers.getHeader(name, delimiter);
public java.io.InputStream	getInputStream() Return a decoded input stream for this body part's "content". This implementation obtains the input stream from the DataHandler. That is, it invokes getDataHandler().getInputStream(); return an InputStream exception MessagingException exception IOException this is typically thrown by the DataHandler. Refer to the documentation for javax.activation.DataHandler for more details. see #getContentStream see javax.activation.DataHandler#getInputStream return getDataHandler().getInputStream();
public int	getLineCount() 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. This implementation returns -1. return number of lines, or -1 if not known return -1;
public java.util.Enumeration	getMatchingHeaderLines(java.lang.String[] names) Get matching header lines as an Enumeration of Strings. A Header line is a raw RFC 822 header line, containing both the "name" and "value" field. return headers.getMatchingHeaderLines(names);
public java.util.Enumeration	getMatchingHeaders(java.lang.String[] names) Return matching headers from this Message as an Enumeration of Header objects. return headers.getMatchingHeaders(names);
public java.util.Enumeration	getNonMatchingHeaderLines(java.lang.String[] names) Get non-matching header lines as an Enumeration of Strings. A Header line is a raw RFC 822 header line, containing both the "name" and "value" field. return headers.getNonMatchingHeaderLines(names);
public java.util.Enumeration	getNonMatchingHeaders(java.lang.String[] names) Return non-matching headers from this Message as an Enumeration of Header objects. return headers.getNonMatchingHeaders(names);
public java.io.InputStream	getRawInputStream() Return an InputStream to the raw data with any Content-Transfer-Encoding intact. This method is useful if the "Content-Transfer-Encoding" header is incorrect or corrupt, which would prevent the getInputStream method or getContent method from returning the correct data. In such a case the application may use this method and attempt to decode the raw data itself. This implementation simply calls the getContentStream method. see #getInputStream see #getContentStream since JavaMail 1.2 return getContentStream();
public int	getSize() Return the size of the content of this body part 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. This implementation returns the size of the content array (if not null), or, if contentStream is not null, and the available method returns a positive number, it returns that number as the size. Otherwise, it returns -1. return size in bytes, or -1 if not known if (content != null) return content.length; if (contentStream != null) { try { int size = contentStream.available(); // only believe the size if it's greate than zero, since zero // is the default returned by the InputStream class itself if (size > 0) return size; } catch (IOException ex) { // ignore it } } return -1;
static void	invalidateContentHeaders(javax.mail.internet.MimePart part) part.removeHeader("Content-Type"); part.removeHeader("Content-Transfer-Encoding");
static boolean	isMimeType(javax.mail.internet.MimePart part, java.lang.String mimeType) // XXX - lots of room for optimization here! try { ContentType ct = new ContentType(part.getContentType()); return ct.match(mimeType); } catch (ParseException ex) { return part.getContentType().equalsIgnoreCase(mimeType); }
public boolean	isMimeType(java.lang.String mimeType) Is this Part of the specified MIME type? This method compares only the primaryType and subType. The parameters of the content types are ignored. For example, this method will return true when comparing a Part of content type "text/plain" with "text/plain; charset=foobar". If the subType of mimeType is the special character '*', then the subtype is ignored during the comparison. return isMimeType(this, mimeType);
public void	removeHeader(java.lang.String name) Remove all headers with this name. headers.removeHeader(name);
public void	saveFile(java.io.File file) Save the contents of this part in the specified file. The content is decoded and saved, without any of the MIME headers. param file the File object to write to exception IOException errors related to accessing the file exception MessagingException message related errors since JavaMail 1.4 OutputStream out = null; InputStream in = null; try { out = new BufferedOutputStream(new FileOutputStream(file)); in = this.getInputStream(); byte[] buf = new byte[8192]; int len; while ((len = in.read(buf)) > 0) out.write(buf, 0, len); } finally { // close streams, but don't mask original exception, if any try { if (in != null) in.close(); } catch (IOException ex) { } try { if (out != null) out.close(); } catch (IOException ex) { } }
public void	saveFile(java.lang.String file) Save the contents of this part in the specified file. The content is decoded and saved, without any of the MIME headers. param file the name of the file to write to exception IOException errors related to accessing the file exception MessagingException message related errors since JavaMail 1.4 File f = new File(file); saveFile(f);
public void	setContent(java.lang.Object o, java.lang.String type) A convenience method for setting this body part's content. The content is wrapped in a DataHandler object. Note that a DataContentHandler class for the specified type should be available to the JavaMail implementation for this to work right. That is, to do setContent(foobar, "application/x-foobar"), a DataContentHandler for "application/x-foobar" should be installed. Refer to the Java Activation Framework for more information. param o the content object param type Mime type of the object exception IllegalWriteException if the underlying implementation does not support modification of existing values exception IllegalStateException if this body part is obtained from a READ_ONLY folder. if (o instanceof Multipart) { setContent((Multipart)o); } else { setDataHandler(new DataHandler(o, type)); }
public void	setContent(javax.mail.Multipart mp) This method sets the body part's content to a Multipart object. param mp The multipart object that is the Message's content exception IllegalWriteException if the underlying implementation does not support modification of existing values. exception IllegalStateException if this body part is obtained from a READ_ONLY folder. setDataHandler(new DataHandler(mp, mp.getContentType())); mp.setParent(this);
public void	setContentID(java.lang.String cid) Set the "Content-ID" header field of this body part. If the cid parameter is null, any existing "Content-ID" is removed. exception IllegalWriteException if the underlying implementation does not support modification exception IllegalStateException if this body part is obtained from a READ_ONLY folder. exception MessagingException since JavaMail 1.3 if (cid == null) removeHeader("Content-ID"); else setHeader("Content-ID", cid);
public void	setContentLanguage(java.lang.String[] languages) Set the Content-Language header of this MimePart. The Content-Language header is defined by RFC 1766. param languages array of language tags setContentLanguage(this, languages);
static void	setContentLanguage(javax.mail.internet.MimePart part, java.lang.String[] languages) StringBuffer sb = new StringBuffer(languages[0]); for (int i = 1; i < languages.length; i++) sb.append(',").append(languages[i]); part.setHeader("Content-Language", sb.toString());
public void	setContentMD5(java.lang.String md5) Set the "Content-MD5" header field of this body part. exception IllegalWriteException if the underlying implementation does not support modification exception IllegalStateException if this body part is obtained from a READ_ONLY folder. setHeader("Content-MD5", md5);
public void	setDataHandler(javax.activation.DataHandler dh) This method provides the mechanism to set this body part'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 body part is obtained from a READ_ONLY folder. this.dh = dh; cachedContent = null; MimeBodyPart.invalidateContentHeaders(this);
public void	setDescription(java.lang.String description) Set the "Content-Description" header field for this body part. 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. Note that if the charset encoding process fails, a MessagingException is thrown, and an UnsupportedEncodingException is included in the chain of nested exceptions within the MessagingException. param description content description exception IllegalWriteException if the underlying implementation does not support modification exception IllegalStateException if this body part is obtained from a READ_ONLY folder. exception MessagingException otherwise; an UnsupportedEncodingException may be included in the exception chain if the charset conversion fails. setDescription(description, null);
public void	setDescription(java.lang.String description, java.lang.String charset) Set the "Content-Description" header field for this body part. 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. Note that if the charset encoding process fails, a MessagingException is thrown, and an UnsupportedEncodingException is included in the chain of nested exceptions within the MessagingException. param description Description param charset Charset for encoding exception IllegalWriteException if the underlying implementation does not support modification exception IllegalStateException if this body part is obtained from a READ_ONLY folder. exception MessagingException otherwise; an UnsupportedEncodingException may be included in the exception chain if the charset conversion fails. setDescription(this, description, charset);
static void	setDescription(javax.mail.internet.MimePart part, java.lang.String description, java.lang.String charset) if (description == null) { part.removeHeader("Content-Description"); return; } try { part.setHeader("Content-Description", MimeUtility.fold(21, MimeUtility.encodeText(description, charset, null))); } catch (UnsupportedEncodingException uex) { throw new MessagingException("Encoding error", uex); }
static void	setDisposition(javax.mail.internet.MimePart part, java.lang.String disposition) if (disposition == null) part.removeHeader("Content-Disposition"); else { String s = part.getHeader("Content-Disposition", null); if (s != null) { /* A Content-Disposition header already exists .. * * Override disposition, but attempt to retain * existing disposition parameters */ ContentDisposition cd = new ContentDisposition(s); cd.setDisposition(disposition); disposition = cd.toString(); } part.setHeader("Content-Disposition", disposition); }
public void	setDisposition(java.lang.String disposition) Set the "Content-Disposition" header field of this body part. If the disposition is null, any existing "Content-Disposition" header field is removed. exception IllegalWriteException if the underlying implementation does not support modification exception IllegalStateException if this body part is obtained from a READ_ONLY folder. setDisposition(this, disposition);
static void	setEncoding(javax.mail.internet.MimePart part, java.lang.String encoding) part.setHeader("Content-Transfer-Encoding", encoding);
public void	setFileName(java.lang.String filename) Set the filename associated with this body part, if possible. Sets the "filename" parameter of the "Content-Disposition" header field of this body part. For compatibility with older mailers, the "name" parameter of the "Content-Type" header is also set. If the mail.mime.encodefilename System property is set to true, the {@link MimeUtility#encodeText MimeUtility.encodeText} method will be used to encode the filename. While such encoding is not supported by the MIME spec, many mailers use this technique to support non-ASCII characters in filenames. The default value of this property is false. exception IllegalWriteException if the underlying implementation does not support modification exception IllegalStateException if this body part is obtained from a READ_ONLY folder. setFileName(this, filename);
static void	setFileName(javax.mail.internet.MimePart part, java.lang.String name) if (encodeFileName && name != null) { try { name = MimeUtility.encodeText(name); } catch (UnsupportedEncodingException ex) { throw new MessagingException("Can't encode filename", ex); } } // Set the Content-Disposition "filename" parameter String s = part.getHeader("Content-Disposition", null); ContentDisposition cd = new ContentDisposition(s == null ? Part.ATTACHMENT : s); cd.setParameter("filename", name); part.setHeader("Content-Disposition", cd.toString()); /* * Also attempt to set the Content-Type "name" parameter, * to satisfy ancient MUAs. XXX - This is not RFC compliant. */ if (setContentTypeFileName) { s = part.getHeader("Content-Type", null); if (s != null) { try { ContentType cType = new ContentType(s); cType.setParameter("name", name); part.setHeader("Content-Type", cType.toString()); } catch (ParseException pex) { } // ignore it } }
public void	setHeader(java.lang.String name, java.lang.String value) Set the value for this header_name. Replaces all existing header values with this new value. Note that RFC 822 headers must contain only US-ASCII characters, so a header that contains non US-ASCII characters must be encoded as per the rules of RFC 2047. param name header name param value header value see javax.mail.internet.MimeUtility headers.setHeader(name, value);
public void	setText(java.lang.String text) Convenience method that sets the given String as this part's content, with a MIME type of "text/plain". If the string contains non US-ASCII characters, it will be encoded using the platform's default charset. The charset is also used to set the "charset" parameter. Note that there may be a performance penalty if text is large, since this method may have to scan all the characters to determine what charset to use. If the charset is already known, use the setText method that takes the charset parameter. param text the text content to set exception MessagingException if an error occurs see #setText(String text, String charset) setText(text, null);
public void	setText(java.lang.String text, java.lang.String charset) Convenience method that sets the given String as this part's content, with a MIME type of "text/plain" and the specified charset. The given Unicode string will be charset-encoded using the specified charset. The charset is also used to set the "charset" parameter. param text the text content to set param charset the charset to use for the text exception MessagingException if an error occurs setText(this, text, charset, "plain");
public void	setText(java.lang.String text, java.lang.String charset, java.lang.String subtype) Convenience method that sets the given String as this part's content, with a primary MIME type of "text" and the specified MIME subtype. The given Unicode string will be charset-encoded using the specified charset. The charset is also used to set the "charset" parameter. param text the text content to set param charset the charset to use for the text param subtype the MIME subtype to use (e.g., "html") exception MessagingException if an error occurs since JavaMail 1.4 setText(this, text, charset, subtype);
static void	setText(javax.mail.internet.MimePart part, java.lang.String text, java.lang.String charset, java.lang.String subtype) if (charset == null) { if (MimeUtility.checkAscii(text) != MimeUtility.ALL_ASCII) charset = MimeUtility.getDefaultMIMECharset(); else charset = "us-ascii"; } // XXX - should at least ensure that subtype is an atom part.setContent(text, "text/" + subtype + "; charset=" + MimeUtility.quote(charset, HeaderTokenizer.MIME));
protected void	updateHeaders() Examine the content of this body part and update the appropriate MIME headers. Typical headers that get set here are Content-Type and Content-Transfer-Encoding. Headers might need to be updated in two cases: - A message being crafted by a mail application will certainly need to activate this method at some point to fill up its internal headers. - A message read in from a Store will have obtained all its headers from the store, and so doesn't 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. In both cases this method is typically called by the Message.saveChanges method. updateHeaders(this); /* * If we've cached a Multipart or Message object then * we're now committed to using this instance of the * object and we discard any stream data used to create * this object. */ if (cachedContent != null) { dh = new DataHandler(cachedContent, getContentType()); cachedContent = null; content = null; if (contentStream != null) { try { contentStream.close(); } catch (IOException ioex) { } // nothing to do } contentStream = null; }
static void	updateHeaders(javax.mail.internet.MimePart part) DataHandler dh = part.getDataHandler(); if (dh == null) // Huh ? return; if (dh instanceof MimePartDataHandler) return; // can't update it try { String type = dh.getContentType(); boolean composite = false; boolean needCTHeader = part.getHeader("Content-Type") == null; ContentType cType = new ContentType(type); if (cType.match("multipart/*")) { // If multipart, recurse composite = true; Object o; if (part instanceof MimeBodyPart) { MimeBodyPart mbp = (MimeBodyPart)part; o = mbp.cachedContent != null ? mbp.cachedContent : dh.getContent(); } else if (part instanceof MimeMessage) { MimeMessage msg = (MimeMessage)part; o = msg.cachedContent != null ? msg.cachedContent : dh.getContent(); } else o = dh.getContent(); if (o instanceof MimeMultipart) ((MimeMultipart)o).updateHeaders(); else throw new MessagingException("MIME part of type \"" + type + "\" contains object of type " + o.getClass().getName() + " instead of MimeMultipart"); } else if (cType.match("message/rfc822")) { composite = true; // XXX - call MimeMessage.updateHeaders()? } // Content-Transfer-Encoding, but only if we don't // already have one if (!composite) { // not allowed on composite parts if (part.getHeader("Content-Transfer-Encoding") == null) setEncoding(part, MimeUtility.getEncoding(dh)); if (needCTHeader && setDefaultTextCharset && cType.match("text/*") && cType.getParameter("charset") == null) { /* * Set a default charset for text parts. * We really should examine the data to determine * whether or not it's all ASCII, but that's too * expensive so we make an assumption: If we * chose 7bit encoding for this data, it's probably * ASCII. (MimeUtility.getEncoding will choose * 7bit only in this case, but someone might've * set the Content-Transfer-Encoding header manually.) */ String charset; String enc = part.getEncoding(); if (enc != null && enc.equalsIgnoreCase("7bit")) charset = "us-ascii"; else charset = MimeUtility.getDefaultMIMECharset(); cType.setParameter("charset", charset); type = cType.toString(); } } // Now, let's update our own headers ... // Content-type, but only if we don't already have one if (needCTHeader) { /* * Pull out "filename" from Content-Disposition, and * use that to set the "name" parameter. This is to * satisfy older MUAs (DtMail, Roam and probably * a bunch of others). */ String s = part.getHeader("Content-Disposition", null); if (s != null) { // Parse the header .. ContentDisposition cd = new ContentDisposition(s); String filename = cd.getParameter("filename"); if (filename != null) { cType.setParameter("name", filename); type = cType.toString(); } } part.setHeader("Content-Type", type); } } catch (IOException ex) { throw new MessagingException("IOException updating headers", ex); }
public void	writeTo(java.io.OutputStream os) Output the body part as an RFC 822 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 writeTo(this, os, null);
static void	writeTo(javax.mail.internet.MimePart part, java.io.OutputStream os, java.lang.String[] ignoreList) // see if we already have a LOS LineOutputStream los = null; if (os instanceof LineOutputStream) { los = (LineOutputStream) os; } else { los = new LineOutputStream(os); } // First, write out the header Enumeration hdrLines = part.getNonMatchingHeaderLines(ignoreList); while (hdrLines.hasMoreElements()) los.writeln((String)hdrLines.nextElement()); // The CRLF separator between header and content los.writeln(); // Finally, the content. Encode if required. // XXX: May need to account for ESMTP ? os = MimeUtility.encode(os, part.getEncoding()); part.getDataHandler().writeTo(os); os.flush(); // Needed to complete encoding