Java 如何在驼峰分割中发生异常时获取聚合交换？

我在camel split（）路由中有一个聚合策略

splitMessage方法已将数据拆分为3个请求数据。因此，我命中http目标端点3次

使用聚合策略，我的http响应头2次聚合

public class CustomAggregationStrategy extends AbstractListAggregationStrategy<Exchange> {

    @Override
    public void onCompletion(Exchange exchange) {
        if (exchange != null && isStoreAsBodyOnCompletion()) {
            List list = (List) exchange.removeProperty(Exchange.GROUPED_EXCHANGE);
            if (list != null) {
                exchange.getIn().setBody(list);
            }
        }
    }

    @Override
    public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
        if (oldExchange == null) {
            oldExchange = new DefaultExchange(newExchange);
        }
        return super.aggregate(oldExchange, newExchange);
    }

    @Override
    public Exchange getValue(Exchange exchange) {
        return exchange;
    }

}

公共类CustomAggregationStrategy扩展了AbstractListAggregationStrategy{
@凌驾
完成时的公共作废（交换）{
if（exchange！=null&&isStoreAsBodyOnCompletion（））{
List List=（List）exchange.removeProperty（exchange.GROUPED\u exchange）；
如果（列表！=null）{
exchange.getIn（）.setBody（列表）；
}
}
}
@凌驾
公共交换聚合（交换旧交换、交换新交换）{
if（oldExchange==null）{
oldExchange=新的默认Exchange（新Exchange）；
}
返回超级聚合（旧交易所、新交易所）；
}
@凌驾
公共交换getValue（交换）{
换汇；
}
}

第三次http调用因异常而失败。因此，该控件转到onCompletion方法，但exchange不包含“CamelGroupedExchange”属性

基本上，我希望在有例外的情况下进行前两次交换

---

如果问题不清楚，请告诉我。

这仍然是个谜！

public class CustomAggregationStrategy extends AbstractListAggregationStrategy<Exchange> {

    @Override
    public void onCompletion(Exchange exchange) {
        if (exchange != null && isStoreAsBodyOnCompletion()) {
            List list = (List) exchange.removeProperty(Exchange.GROUPED_EXCHANGE);
            if (list != null) {
                exchange.getIn().setBody(list);
            }
        }
    }

    @Override
    public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
        if (oldExchange == null) {
            oldExchange = new DefaultExchange(newExchange);
        }
        return super.aggregate(oldExchange, newExchange);
    }

    @Override
    public Exchange getValue(Exchange exchange) {
        return exchange;
    }

}