public void processResource()

in src/main/java/org/apache/maven/plugins/shade/resource/ComponentsXmlResourceTransformer.java [56:121]
48 lines of code
10 McCabe index (conditional complexity)

    public void processResource(String resource, InputStream is, List<Relocator> relocators, long time)
            throws IOException {
        Xpp3Dom newDom;

        try {
            BufferedInputStream bis = new BufferedInputStream(is) {
                @Override
                public void close() throws IOException {
                    // leave ZIP open
                }
            };

            Reader reader = ReaderFactory.newXmlReader(bis);

            newDom = Xpp3DomBuilder.build(reader);
        } catch (Exception e) {
            throw new IOException("Error parsing components.xml in " + is, e);
        }

        // Only try to merge in components if there are some elements in the component-set
        if (newDom.getChild("components") == null) {
            return;
        }

        Xpp3Dom[] children = newDom.getChild("components").getChildren("component");

        for (Xpp3Dom component : children) {
            String role = getValue(component, "role");
            role = getRelocatedClass(role, relocators);
            setValue(component, "role", role);

            String roleHint = getValue(component, "role-hint");

            String impl = getValue(component, "implementation");
            impl = getRelocatedClass(impl, relocators);
            setValue(component, "implementation", impl);

            String key = role + ':' + roleHint;
            if (components.containsKey(key)) {
                // TODO: use the tools in Plexus to merge these properly. For now, I just need an all-or-nothing
                // configuration carry over

                Xpp3Dom dom = components.get(key);
                if (dom.getChild("configuration") != null) {
                    component.addChild(dom.getChild("configuration"));
                }
            }

            Xpp3Dom requirements = component.getChild("requirements");
            if (requirements != null && requirements.getChildCount() > 0) {
                for (int r = requirements.getChildCount() - 1; r >= 0; r--) {
                    Xpp3Dom requirement = requirements.getChild(r);

                    String requiredRole = getValue(requirement, "role");
                    requiredRole = getRelocatedClass(requiredRole, relocators);
                    setValue(requirement, "role", requiredRole);
                }
            }

            components.put(key, component);
        }

        if (time > this.time) {
            this.time = time;
        }
    }