MultipartHttpToMapTransformer aux

MultipartHttpToMapTransformeraux.java

protected Map<String, String> parseHeaders(String headerPart)
	{
		Map<String, String> headers = new HashMap<String, String>();
		char buffer[] = new char[1024];
		boolean done = false;
		int j = 0;
		int i;
		String header, headerName, headerValue;
		try
		{
			while (!done)
			{
				i = 0;
				// Copy a single line of characters into the buffer,
				// omitting trailing CRLF.
				while (i < 2 || buffer[i - 2] != '\r' || buffer[i - 1] != '\n')
				{
					buffer[i++] = headerPart.charAt(j++);
				}
				header = new String(buffer, 0, i - 2);
				if (header.equals(""))
				{
					done = true;
				}
				else
				{
					if (header.indexOf(':') == -1)
					{
						// This header line is malformed, skip it.
						continue;
					}
					headerName = header.substring(0, header.indexOf(':'))
						.trim().toLowerCase();
					headerValue =
						header.substring(header.indexOf(':') + 1).trim();
					if ((String)headers.get(headerName.toLowerCase()) != null)
					{
						// More that one heder of that name exists,
						// append to the list.
						headers.put(headerName,
							headers.get(headerName.toLowerCase()) + ','
							+ headerValue);
					}
					else
					{
						headers.put(headerName, headerValue);
					}
				}
			}
		}
		catch (IndexOutOfBoundsException e)
		{
			if (logger.isDebugEnabled()) {
				logger.debug("Headers were malformed. continue with all that was parsed.");
			}
		}
		return headers;
	}