if (patternDefMap.containsKey(extensionDef.getCode())) {
            // 基于Pattern的扩展点，因为在pattern里找到了对应的code：extension.code = pattern.code
            PatternDef patternDef = patternDefMap.get(extensionDef.getCode());
            patternDef.registerExtensionDef(extensionDef);