public void begin()

in configuration/xml/src/main/java/org/apache/commons/chain2/config/xml/ConfigCatalogRule.java [84:118]

23 lines of code
4 McCabe index (conditional complexity)


    public void begin(String namespace, String name, Attributes attributes) throws Exception {
        // Retrieve any current Catalog with the specified name
        Catalog<Object, Object, Map<Object, Object>> catalog;
        CatalogFactory<Object, Object, Map<Object, Object>> factory = CatalogFactoryBase.getInstance();
        String nameValue = attributes.getValue(nameAttribute);
        if (nameValue == null) {
            catalog = factory.getCatalog();
        } else {
            catalog = factory.getCatalog(nameValue);
        }

        // Create and register a new Catalog instance if necessary
        if (catalog == null) {
            Class<?> clazz = getDigester().getClassLoader().loadClass(catalogClass);

            /* Convert catalog pulled from digester to default generic signature
             * with the assumption that the Catalog returned from digester will
             * comply with the historic chain contract. */
            @SuppressWarnings("unchecked")
            Catalog<Object, Object, Map<Object, Object>> digesterCatalog =
                    (Catalog<Object, Object, Map<Object, Object>>) clazz.newInstance();

            catalog = digesterCatalog;

            if (nameValue == null) {

                factory.setCatalog(catalog);
            } else {
                factory.addCatalog(nameValue, catalog);
            }
        }

        // Push this Catalog onto the top of the stack
        getDigester().push(catalog);
    }