红帽全球峰会270.7. 使用 InOut Message Exchange Pattern
Camel 2.8+
虽然 FIX 协议是事件驱动的和异步，但有特定的消息对代表请求的消息交换。要使用 InOut Exchange 模式，应有一个请求消息，并向请求显示单一回复消息。示例包括 OrderStatusRequest message 和 UserRequest。
270.7.1. 为消费者实施 InOut Exchanges
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将"exchangePattern=InOut"添加到 QuickFIX/J enpoint URI 中。以下示例中的 MessageOrderStatusService 是一个具有同步服务方法的 bean。该方法返回对请求的响应（本例中为执行端口），然后发回到 requestor 会话。
from("quickfix:examples/inprocess.cfg?sessionID=FIX.4.2:MARKET->TRADER&exchangePattern=InOut")
.filter(header(QuickfixjEndpoint.MESSAGE_TYPE_KEY).isEqualTo(MsgType.ORDER_STATUS_REQUEST))
.bean(new MarketOrderStatusService());
from("quickfix:examples/inprocess.cfg?sessionID=FIX.4.2:MARKET->TRADER&exchangePattern=InOut")
.filter(header(QuickfixjEndpoint.MESSAGE_TYPE_KEY).isEqualTo(MsgType.ORDER_STATUS_REQUEST))
.bean(new MarketOrderStatusService());
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