Log4Net过滤器“OR” [英] Log4Net filters "OR"

问题描述

是否可以创建一个过滤器，例如PropertyFilter是中性的（并且传递给链中的下一个过滤器），如果一个或另一个值匹配？像：

Is it possible to make a filter, for example a PropertyFilter that is neutral (and passed to next filter in the chain) if either one or another value matches? Something like:

<filter type="log4net.Filter.PropertyFilter">
   <Key value="myProperty" />
   <StringsToMatch Operator="OR">
       <Match>value1</Match>
       <Match>value2</Match>
   </StringsToMatch>
</filter>

我真的不想写我自己的过滤器，并希望用普通的Log4Net过滤器。这是可能吗？

I really don't want to write my own filter and would prefer to accomplish this with the normal Log4Net filters. Is this possible?

推荐答案

你可以自己通过继承 FilterSkeleton 。

You could certainly develop such a filter yourself by subclassing FilterSkeleton.

但是，我建议您不要像这样创建一个特殊的过滤器，而是实现一个更通用的过滤器，它可以配置为包含过滤器集合，并对其应用操作符。配置可以看起来像这样：

But instead of making a specialized filter like this I suggest you rather implement a more generic filter that could be configured to contain a collection of filters and apply the Operator over those. The config could look something like this:

<filter type="CompositeFilter">
  <operator value="Or" />
  <filters>
    <filter type="log4net.Filter.PropertyFilter">
      <stringToMatch value="value1" />
    </filter>
    <filter type="log4net.Filter.PropertyFilter">
      <stringToMatch value="value2" />
    </filter>
  </filters>
</filter>

如果你做这样的过滤器，我鼓励你提交它到log4net项目。这对一般公众当然是有用的：）

If you make such a filter I encourage you to submit it to the log4net project. It would certainly be useful for the general public :)

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