Question

我需要更新Apache Camel中交换属性的帮助。

用例：我有从API端点获取一些ID的路由，此后，我需要从另一个端点获取每个ID的信息。

我需要将响应保留在某处，以便稍后创建一些JSON数组。

有人可以给我一些具有类似用例的工作路线，还是只是向我指出正确的方向？

Answer 1

希望这条简单的路线会为您提供帮助：

from("jms://somequeue")
            .split(simple("${body}"), (oldExchange, newExchange) -> {
                Response response = newExchange.getIn().getBody(Response.class);
                LinkedList<Response> responseCollection = oldExchange.getProperty("responseCollection", LinkedList.class);
                if (responseCollection == null) {
                    newExchange.setProperty("responseCollection", new LinkedList<Response>(Collections.singletonList(response)));
                } else {
                    responseCollection.add(response);
                    newExchange.setProperty("responseCollection", responseCollection);
                }
                return newExchange;
            })
            .process(exchange -> {
                String id = exchange.getIn().getBody(String.class);
                Response response = receiveResponse(id);
                exchange.getIn().setBody(response);
            })
            .end()
            .process(exchange -> {
                LinkedList<Response> collection = exchange.getProperty("responseCollection", LinkedList.class);
                //create your json
            });

Answer 2

您可以使用Simple。您可以在Exchange API.

上使用setProperty

Apache Camel更新交换属性

2 个答案: