protected void initResultInstance()

in src/main/java/org/apache/commons/configuration2/builder/combined/CombinedConfigurationBuilder.java [1089:1129]
36 lines of code
5 McCabe index (conditional complexity)

    protected void initResultInstance(final CombinedConfiguration result) throws ConfigurationException {
        super.initResultInstance(result);

        currentConfiguration = result;
        final HierarchicalConfiguration<?> config = getDefinitionConfiguration();
        if (config.getMaxIndex(KEY_COMBINER) < 0) {
            // No combiner defined => set default
            result.setNodeCombiner(new OverrideCombiner());
        }

        setUpCurrentParameters();
        initNodeCombinerListNodes(result, config, KEY_OVERRIDE_LIST);
        registerConfiguredProviders(config);
        setUpCurrentXMLParameters();
        currentXMLParameters.setFileSystem(initFileSystem(config));
        initSystemProperties(config, getBasePath());
        registerConfiguredLookups(config, result);
        configureEntityResolver(config, currentXMLParameters);
        setUpParentInterpolator(currentConfiguration, config);

        final ConfigurationSourceData data = getSourceData();
        final boolean createBuilders = data.getChildBuilders().isEmpty();
        final List<ConfigurationBuilder<? extends Configuration>> overrideBuilders = data.createAndAddConfigurations(result, data.getOverrideSources(),
            data.overrideBuilders);
        if (createBuilders) {
            data.overrideBuilders.addAll(overrideBuilders);
        }
        if (!data.getUnionSources().isEmpty()) {
            final CombinedConfiguration addConfig = createAdditionalsConfiguration(result);
            result.addConfiguration(addConfig, ADDITIONAL_NAME);
            initNodeCombinerListNodes(addConfig, config, KEY_ADDITIONAL_LIST);
            final List<ConfigurationBuilder<? extends Configuration>> unionBuilders = data.createAndAddConfigurations(addConfig, data.unionDeclarations,
                data.unionBuilders);
            if (createBuilders) {
                data.unionBuilders.addAll(unionBuilders);
            }
        }

        result.isEmpty(); // this sets up the node structure
        currentConfiguration = null;
    }