Java Document.createMIMEEntity方法代码示例

import lotus.domino.Document; //导入方法依赖的package包/类
/**
 * Save state. Imported from org.openntf.domino
 * 
 * @param object
 *            the object
 * @param doc
 *            the doc
 * @param itemName
 *            the item name
 * @param compress
 *            the compress
 * @throws Throwable
 *             the throwable
 */
public static void saveState(Serializable object, Document doc, String itemName, boolean compress, Map<String, String> headers) throws Throwable {
	Session session=doc.getParentDatabase().getParent();
	boolean convertMime = session.isConvertMime();
	session.setConvertMime(false);

	ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
	ObjectOutputStream objectStream = compress ? new ObjectOutputStream(new GZIPOutputStream(byteStream)) : new ObjectOutputStream(
			byteStream);
	String contentType = null;

	// Prefer externalization if available
	if(object instanceof Externalizable) {
		((Externalizable)object).writeExternal(objectStream);
		contentType = "application/x-java-externalized-object";
	} else {
		objectStream.writeObject(object);
		contentType = "application/x-java-serialized-object";
	}

	objectStream.flush();
	objectStream.close();

	Stream mimeStream = session.createStream();
	MIMEEntity previousState = doc.getMIMEEntity(itemName);
	MIMEEntity entity = previousState == null ? doc.createMIMEEntity(itemName) : previousState;
	ByteArrayInputStream byteIn = new ByteArrayInputStream(byteStream.toByteArray());
	mimeStream.setContents(byteIn);
	entity.setContentFromBytes(mimeStream, contentType, MIMEEntity.ENC_NONE);
	MIMEHeader contentEncoding = entity.getNthHeader("Content-Encoding");
	if (compress) {
		if (contentEncoding == null) {
			contentEncoding = entity.createHeader("Content-Encoding");
		}
		contentEncoding.setHeaderVal("gzip");
		contentEncoding.recycle();
	} else {
		if (contentEncoding != null) {
			contentEncoding.remove();
			contentEncoding.recycle();
		}
	}
	MIMEHeader javaClass = entity.getNthHeader("X-Java-Class");
	if (javaClass == null) {
		javaClass = entity.createHeader("X-Java-Class");
	}
	javaClass.setHeaderVal(object.getClass().getName());
	javaClass.recycle();

	if(headers != null) {
		for(Map.Entry<String, String> entry : headers.entrySet()) {
			MIMEHeader paramHeader = entity.getNthHeader(entry.getKey());
			if(paramHeader == null) {
				paramHeader = entity.createHeader(entry.getKey());
			}
			paramHeader.setHeaderVal(entry.getValue());
			paramHeader.recycle();
		}
	}

	entity.recycle();
	mimeStream.recycle();

	session.setConvertMime(convertMime);
}
 

import lotus.domino.Document; //导入方法依赖的package包/类
private void writeMimeOutput(Document document, String itemName, Writer writer)
		throws NotesException, IOException {

	MIMEEntity mimeEntity = null;
	MIMEEntity mChild = null;
	String contenttype = null;
	String headers = null;
       MimeEntityHelper helper = null;
	
       if (!document.hasItem(itemName)) {
           // SPR# WJBJ9PE86G: The body item doesn't exist, so create one now
           mimeEntity = document.createMIMEEntity(itemName);
       }
       else {
           helper = new MimeEntityHelper(document, itemName);
           mimeEntity = helper.getFirstMimeEntity();
           if (mimeEntity == null) {
               throw new NullPointerException("Invalid item."); // $NLX-MimeMessageGenerator_InvalidItem-1$
           }
       }
	
	try {
		contenttype = mimeEntity.getContentType();
		headers = mimeEntity.getHeaders();
		// TODO: Is there a better way to output the headers?
		if (!headers.startsWith("MIME-Version:")) { //$NON-NLS-1$
			writer.write("MIME-Version: 1.0"); //$NON-NLS-1$
		}
		// Write MIMEEntity.
		writeMimeEntity(writer, mimeEntity);
		if (contenttype.startsWith(MULTIPART)) {
			mChild = mimeEntity.getFirstChildEntity();
			while (mChild != null) {
				// Write MIMEEntity.
				writeMimeEntity(writer, mChild);
				MIMEEntity mChild2 = mChild.getFirstChildEntity();
				if (mChild2 == null) {
					mChild2 = mChild.getNextSibling();
					if (mChild2 == null) {
						mChild2 = mChild.getParentEntity();
						if (mChild2 != null)
							mChild2 = mChild2.getNextSibling();
					}
				}
				mChild.recycle();
				mChild = mChild2;
			}
		}
		writer.write(mimeEntity.getBoundaryEnd());
	} finally {
           if (helper != null) {
               helper.recycle();
           }
	}
}