骆驼日志错误

时间:2017-02-03 13:41:24

标签: scala apache-camel dsl

我使用scala camel dsl,我需要捕获异常。

我的管道没有在handle案例中记录任何内容:

  s"$ftpSource"
    .log("File is received")
    .as(classOf[String])
    .attempt{
      process(failingProcessor)
    }.handle(classOf[Exception]) apply {
      process((exchange: Exchange) => logger.error(s"Error during file reading: ${exchange.in.toString}"))
    }

如何使用scala dsl正确捕获异常?以及如何指定回滚策略?我不希望它在失败的情况下重试。

我发现的唯一一个可怜的小例子是: https://svn.apache.org/repos/asf/camel/trunk/components/camel-scala/src/test/scala/org/apache/camel/scala/dsl/TryCatchFinallyTest.scala

1 个答案:

答案 0 :(得分:2)

意见回答..

恕我直言,您应该尝试使用驼峰作为声明性语言。我总是找到'try ... catch'dsl 命令式

以下是使用更具声明性的异常处理程序

的示例
handle[MyException] {
  log("handling exception")
  process((e : Exchange) => e.in = "an error occured")
}.handled

"jetty:http://localhost:9091/service" ==> {

  id ("some-error-route")
  log("processing request")
  process((e : Exchange) => e.in = e.in[String].reverse)
  process((_: Exchange) => throw new MyException("Something went wrong"))
  log("done")

}

我建议您查看优秀的图书Camel In action,了解处理错误的不同方法。