public void startElement()

in fop-core/src/main/java/org/apache/fop/render/intermediate/extensions/DocumentNavigationHandler.java [77:191]
115 lines of code
26 McCabe index (conditional complexity)

    public void startElement(String uri, String localName, String qName, Attributes attributes)
            throws SAXException {
        boolean handled = false;
        if (EL_ID.equals(localName)) {
            String idref = attributes.getValue(NAME);
            if (unresolvedIds.containsKey(idref)) {
                GoToXYAction action = new GoToXYAction(idref);
                action.setPageIndex(navHandler.getPageIndex());
                action.setTargetLocation(new Point(0, 0));
                unresolvedIds.put(idref, action);
            }
            handled = true;
        }
        if (NAMESPACE.equals(uri)) {
            if (BOOKMARK_TREE.getLocalName().equals(localName)) {
                if (!objectStack.isEmpty()) {
                    throw new SAXException(localName + " must be the root element!");
                }
                BookmarkTree bookmarkTree = new BookmarkTree();
                objectStack.push(bookmarkTree);
            } else if (BOOKMARK.getLocalName().equals(localName)) {
                String title = attributes.getValue("title");
                String s = attributes.getValue("starting-state");
                boolean show = !"hide".equals(s);
                Bookmark b = new Bookmark(title, show, null);
                Object o = objectStack.peek();
                if (o instanceof AbstractAction) {
                    AbstractAction action = (AbstractAction)objectStack.pop();
                    o = objectStack.peek();
                    ((Bookmark)o).setAction(action);
                }
                if (o instanceof BookmarkTree) {
                    ((BookmarkTree)o).addBookmark(b);
                } else {
                    ((Bookmark)o).addChildBookmark(b);
                }
                objectStack.push(b);
            } else if (NAMED_DESTINATION.getLocalName().equals(localName)) {
                if (!objectStack.isEmpty()) {
                    throw new SAXException(localName + " must be the root element!");
                }
                String name = attributes.getValue("name");
                NamedDestination dest = new NamedDestination(name, null);
                objectStack.push(dest);
            } else if (LINK.getLocalName().equals(localName)) {
                if (!objectStack.isEmpty()) {
                    throw new SAXException(localName + " must be the root element!");
                }
                Rectangle targetRect = XMLUtil.getAttributeAsRectangle(attributes, "rect");
                structureTreeElement = structureTreeElements.get(attributes.getValue(
                        InternalElementMapping.URI, InternalElementMapping.STRUCT_REF));
                Link link = new Link(null, targetRect);
                objectStack.push(link);
            } else if (GOTO_XY.getLocalName().equals(localName)) {
                String idref = attributes.getValue("idref");
                GoToXYAction action;
                if (idref != null) {
                    action = new GoToXYAction(idref);
                } else {
                    String id = attributes.getValue("id");
                    int pageIndex = XMLUtil.getAttributeAsInt(attributes, "page-index");
                    int pageIndexRelative = XMLUtil.getAttributeAsInt(attributes, "page-index-relative", 0);
                    final Point location;
                    if (pageIndex < 0) {
                        location = null;
                        unresolvedIds.put(id, null);
                    } else {
                        if (hasNavigation() && !inBookmark() && pageIndexRelative >= 0) {
                            int currentPageIndex = navHandler.getPageIndex();
                            if (currentPageIndex >= 0) {
                                pageIndex = currentPageIndex;
                            }
                        }
                        final int x = XMLUtil
                                .getAttributeAsInt(attributes, "x");
                        final int y = XMLUtil
                                .getAttributeAsInt(attributes, "y");
                        location = new Point(x, y);
                        unresolvedIds.remove(id);
                    }
                    action = new GoToXYAction(id, pageIndex, location,
                            new PageIndexRelative(pageIndex, pageIndexRelative));
                }
                if (structureTreeElement != null) {
                    action.setStructureTreeElement(structureTreeElement);
                }
                objectStack.push(action);
            } else if (GOTO_URI.getLocalName().equals(localName)) {
                String id = attributes.getValue("id");
                String gotoURI = attributes.getValue("uri");
                String showDestination = attributes.getValue("show-destination");
                boolean newWindow = "new".equals(showDestination);
                URIAction action = new URIAction(gotoURI, newWindow);
                if (id != null) {
                    action.setID(id);
                }
                if (structureTreeElement != null) {
                    action.setStructureTreeElement(structureTreeElement);
                }
                objectStack.push(action);
            } else {
                throw new SAXException(
                        "Invalid element '" + localName + "' in namespace: " + uri);
            }
            handled = true;
        }
        if (!handled) {
            if (NAMESPACE.equals(uri)) {
                throw new SAXException("Unhandled element '" + localName + "' in namespace: "
                        + uri);
            } else {
                log.warn("Unhandled element '" + localName + "' in namespace: " + uri);
            }
        }
    }