public static Xpp3Dom merge()

in src/main/java/org/apache/maven/shared/utils/xml/Xpp3DomUtils.java [56:98]
38 lines of code
13 McCabe index (conditional complexity)

    public static Xpp3Dom merge(Xpp3Dom dominant, Xpp3Dom recessive, Boolean childMergeOverride) {
        if (recessive == null || isCombineSelfOverride(dominant)) {
            return dominant;
        }

        if (isEmpty(dominant.getValue())) {
            dominant.setValue(recessive.getValue());
        }

        for (String attr : recessive.getAttributeNames()) {
            if (isEmpty(dominant.getAttribute(attr))) {
                dominant.setAttribute(attr, recessive.getAttribute(attr));
            }
        }

        if (recessive.getChildCount() > 0) {
            boolean mergeChildren = isMergeChildren(dominant, childMergeOverride);

            if (mergeChildren) {
                Map<String, Iterator<Xpp3Dom>> commonChildren = getCommonChildren(dominant, recessive);
                for (Xpp3Dom recessiveChild : recessive) {
                    Iterator<Xpp3Dom> it = commonChildren.get(recessiveChild.getName());
                    if (it == null) {
                        dominant.addChild(new Xpp3Dom(recessiveChild));
                    } else if (it.hasNext()) {
                        Xpp3Dom dominantChild = it.next();
                        merge(dominantChild, recessiveChild, childMergeOverride);
                    }
                }
            } else {
                Xpp3Dom[] dominantChildren = dominant.getChildren();
                dominant.childList.clear();
                for (Xpp3Dom child : recessive) {
                    dominant.addChild(new Xpp3Dom(child));
                }

                for (Xpp3Dom aDominantChildren : dominantChildren) {
                    dominant.addChild(aDominantChildren);
                }
            }
        }
        return dominant;
    }