public final Object internalGetCharacterData()

in mixins/core-mixins/src/main/java/org/apache/axiom/core/impl/mixin/CoreParentNodeMixin.java [354:424]
62 lines of code
19 McCabe index (conditional complexity)

    public final Object internalGetCharacterData(ElementAction elementAction)
            throws CoreModelException {
        if (getState() == COMPACT) {
            return content;
        } else {
            Object textContent = null;
            StringBuilder buffer = null;
            int depth = 0;
            CoreChildNode child = coreGetFirstChild();
            boolean visited = false;
            while (child != null) {
                if (visited) {
                    visited = false;
                } else if (child instanceof CoreElement) {
                    switch (elementAction) {
                        case RETURN_NULL:
                            return null;
                        case RECURSE:
                            CoreChildNode firstChild = ((CoreElement) child).coreGetFirstChild();
                            if (firstChild != null) {
                                child = firstChild;
                                depth++;
                                continue;
                            }
                        // Fall through
                        case SKIP:
                            // Just continue
                    }
                } else {
                    if (child instanceof CoreCharacterDataNode
                            || child instanceof CoreCDATASection) {
                        Object textValue =
                                ((CoreCharacterDataContainer) child).coreGetCharacterData();
                        if (textValue instanceof CharacterData
                                || ((String) textValue).length() != 0) {
                            if (textContent == null) {
                                // This is the first non empty text node. Just save the string.
                                textContent = textValue;
                            } else {
                                // We've already seen a non empty text node before. Concatenate
                                // using
                                // a StringBuilder.
                                if (buffer == null) {
                                    // This is the first text node we need to append. Initialize the
                                    // StringBuilder.
                                    buffer = new StringBuilder(textContent.toString());
                                }
                                buffer.append(textValue.toString());
                            }
                        }
                    }
                }
                CoreChildNode nextSibling = child.coreGetNextSibling();
                if (depth > 0 && nextSibling == null) {
                    depth--;
                    child = (CoreChildNode) child.coreGetParent();
                    visited = true;
                } else {
                    child = nextSibling;
                }
            }
            if (textContent == null) {
                // We didn't see any text nodes. Return an empty string.
                return "";
            } else if (buffer != null) {
                return buffer.toString();
            } else {
                return textContent;
            }
        }
    }