PartImpl getNextPart()

in axiom-api/src/main/java/org/apache/axiom/mime/MultipartBody.java [243:308]
59 lines of code
16 McCabe index (conditional complexity)

    PartImpl getNextPart() {
        if (currentPart != null) {
            currentPart.fetch();
        }
        if (parser.getState() == EntityState.T_END_MULTIPART) {
            currentPart = null;
        } else {
            String partContentID = null;
            boolean isRootPart;

            try {
                checkParserState(parser.next(), EntityState.T_START_HEADER);
                
                List<Header> headers = new ArrayList<Header>();
                while (parser.next() == EntityState.T_FIELD) {
                    Field field = parser.getField();
                    String name = field.getName();
                    String value = field.getBody();
                    
                    if (log.isDebugEnabled()){
                        log.debug("addHeader: (" + name + ") value=(" + value +")");
                    }
                    headers.add(new Header(name, value));
                    if (partContentID == null && name.equalsIgnoreCase("Content-ID")) {
                        partContentID = normalizeContentID(value);
                    }
                }
                
                checkParserState(parser.next(), EntityState.T_BODY);
                
                if (rootPartContentID == null) {
                    isRootPart = firstPart == null;
                } else {
                    isRootPart = rootPartContentID.equals(partContentID);
                }
                
                PartImpl part = new PartImpl(this, isRootPart ? MemoryBlob.FACTORY : attachmentBlobFactory, partContentID, headers, parser);
                if (currentPart == null) {
                    firstPart = part;
                } else {
                    currentPart.setNextPart(part);
                }
                currentPart = part;
            } catch (IOException ex) {
                throw new MIMEException(ex);
            } catch (MimeException ex) {
                throw new MIMEException(ex);
            }

            partCount++;
            if (partContentID != null) {
                if (partMap.containsKey(partContentID)) {
                    throw new MIMEException(
                            "Two MIME parts with the same Content-ID not allowed.");
                }
                partMap.put(partContentID, currentPart);
            }
            if (isRootPart) {
                rootPart = currentPart;
            }
            if (partCreationListener != null) {
                partCreationListener.partCreated(currentPart);
            }
        }
        return currentPart;
    }