class ApolloXmlELParser extends ClassXmlFlowELParser {

	private final ApolloParseHelper apolloParseHelper;

	public ApolloXmlELParser() {
		LiteflowConfig liteflowConfig = LiteflowConfigGetter.get();
		try {
			ApolloParserConfigVO apolloParserConfigVO = null;
			if (MapUtil.isNotEmpty((liteflowConfig.getRuleSourceExtDataMap()))) {
				apolloParserConfigVO = BeanUtil.toBean(liteflowConfig.getRuleSourceExtDataMap(),
						ApolloParserConfigVO.class, CopyOptions.create());
			}
			else if (StrUtil.isNotBlank(liteflowConfig.getRuleSourceExtData())) {
				apolloParserConfigVO = JsonUtil.parseObject(liteflowConfig.getRuleSourceExtData(),
						ApolloParserConfigVO.class);
			}

			// check config
			if (Objects.isNull(apolloParserConfigVO)) {
				throw new ApolloException("ruleSourceExtData or map is empty");
			}

			if (StrUtil.isBlank(apolloParserConfigVO.getChainNamespace())) {
				throw new ApolloException("chainNamespace is empty, you must configure the chainNamespace property");
			}

			apolloParseHelper = new ApolloParseHelper(apolloParserConfigVO);
		}
		catch (Exception e) {
			throw new ApolloException(e.getMessage());
		}
	}

	@Override
	public String parseCustom() {<FILL_FUNCTION_BODY>}

}


		try {
			String content = apolloParseHelper.getContent();
			FlowInitHook.addHook(() -> {
				apolloParseHelper.listenApollo();
				return true;
			});
			return content;

		}
		catch (Exception e) {
			throw new ApolloException(e.getMessage());
		}
	
<methods>public non-sealed void <init>() ,public abstract java.lang.String parseCustom() ,public void parseMain(List<java.lang.String>) throws java.lang.Exception<variables>