I was thinking of experimenting with this in PatternLayout:
@Override
public byte[] getHeader() {
byte [] header = super.getHeader();
if (header != null) {
return config.getStrSubstitutor().replace(new String(header,
getCharset())).getBytes(getCharset());
}
return header;
}
Why not support this with a marker like %pattern (of whatever). But how can
we tell the config's StrSubstitor about this layout's pattern string?
In the ctor we could do:
this.config = config;
this.config.getStrSubstitutor().getStrLookup().put("pattern", pattern);
But StrLookup does not support put(String, String) of course...
What would be a supported way to do this or do we need to tweak things a
bit?
Gary
On Tue, May 20, 2014 at 9:27 AM, Gary Gregory <[email protected]>wrote:
> For best usability I am wondering if this should be an option, but if it
> is it should be on by default. Thoughts?
>
> Gary
>
>
> On Mon, May 19, 2014 at 9:42 PM, Gary Gregory <[email protected]>wrote:
>
>> On Mon, May 19, 2014 at 9:37 PM, Ralph Goers
>> <[email protected]>wrote:
>>
>>> It sounds like you want that in the header of the file? That sounds
>>> like an extension of what PatternLayout currently does. You would just want
>>> to set the header to include the pattern. Of course, this doesn’t apply to
>>> Appenders that use some other layout.
>>>
>>
>> Yes in the header. whatever a header means for a text file appender for
>> example, maybe it is a "comment" like a comment in a property file: # my
>> format.
>>
>> This only needs to apply to "unstructured" layouts, which are all text
>> based layouts, like the File and Console, I think these all share a
>> streaming super class/manager. For a database appender and other structured
>> layouts (XML, JSON, and so on), this does not make sense.
>>
>> Gary
>>
>> Gary
>>
>>>
>>> Ralph
>>>
>>> On May 19, 2014, at 12:47 PM, Gary Gregory <[email protected]>
>>> wrote:
>>>
>>> I get logs from users that are files, which is nice.
>>>
>>> I'd like the log to have a line that shows the conversion pattern used
>>> to create the log events.
>>>
>>> This would let me create a nice color filter in our tools.
>>>
>>> Yes, I know users could use some kind of structured appender in addition
>>> to a log file, but they won't for my convenience...
>>>
>>> So I wonder if we could have setting for this? Our tools create the
>>> config, so we could turn it on no matter what conversion pattern they use.
>>>
>>> Gary
>>>
>>> --
>>> E-Mail: [email protected] | [email protected]
>>> Java Persistence with Hibernate, Second
>>> Edition<http://www.manning.com/bauer3/>
>>> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
>>> Spring Batch in Action <http://www.manning.com/templier/>
>>> Blog: http://garygregory.wordpress.com
>>> Home: http://garygregory.com/
>>> Tweet! http://twitter.com/GaryGregory
>>>
>>>
>>>
>>
>>
>> --
>> E-Mail: [email protected] | [email protected]
>> Java Persistence with Hibernate, Second
>> Edition<http://www.manning.com/bauer3/>
>> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
>> Spring Batch in Action <http://www.manning.com/templier/>
>> Blog: http://garygregory.wordpress.com
>> Home: http://garygregory.com/
>> Tweet! http://twitter.com/GaryGregory
>>
>
>
>
> --
> E-Mail: [email protected] | [email protected]
> Java Persistence with Hibernate, Second
> Edition<http://www.manning.com/bauer3/>
> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> Spring Batch in Action <http://www.manning.com/templier/>
> Blog: http://garygregory.wordpress.com
> Home: http://garygregory.com/
> Tweet! http://twitter.com/GaryGregory
>
--
E-Mail: [email protected] | [email protected]
Java Persistence with Hibernate, Second Edition<http://www.manning.com/bauer3/>
JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
Spring Batch in Action <http://www.manning.com/templier/>
Blog: http://garygregory.wordpress.com
Home: http://garygregory.com/
Tweet! http://twitter.com/GaryGregory
