Camel 中是否有 while 循环? [英] Is there a while loop in Camel?

问题描述

Camel 中是否有 while 循环的想法?我们正在使用 Camel 进行批处理(我所知道的并不是 ESB 的真正职责).在 ESB 中处理消息时，我想继续检查其他内容的状态.我只能找到一个循环定义次数的循环，即用于测试或每 x 秒检查一次的石英计时器.这两个都不合适.

Is there an idea of a while loop in Camel? We are using Camel for doing batch processing (not really the remit of an ESB I know). I want to keep checking on the status of something else whilst I am processing messages in the ESB. I can only find a loop that loops for a defined number of times, i.e. for testing or a quartz timer that will check every x seconds. Neither of these are really suitable.

有什么建议吗，或者我只是在 ESB 的职责范围之外要求什么?

Any suggestions, or am I asking for something simply outside of the remit of an ESB?

推荐答案

做这样的事情怎么样:

<camelContext id="myContext">
    <route id ="initializer">
        <!--This will be created only once -->
        <from uri="timer://foo?repeatCount=1"/>
        <to uri="seda:mySedaQueue"/>
    </route>

    <route id ="myRoute">
        <from uri="seda:mySedaQueue"/>
        <choice>
            <when>
                <simple>{your condition if you want to continue}</simple>
                ...
                <to uri="seda:mySedaQueue" />
            </when>
            <otherwise>
                ...
            </otherwise>
        </choice>
    </route>
</camelContext>

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