[logback-user] External property file

[Suriyanto]

Hi Tony,

I believe I found the issue.

I have the jar and the properties file inside dir1. I am calling the jar
from the parent directory of dir1 using the command below:

java -jar dir1/myapp.jar

I believe this caused logback to try to find the properties file on the
current directory, which is the parent of dir1. Is there a way for logback
to be able to constantly loading the properties from the same directory
that the jar is in?

Thanks,
Suriyanto


On Sat, Apr 20, 2013 at 9:25 AM, Tony Trinh <tony19 at gmail.com> wrote:

> I'm not sure why that quick test (using the "file" attribute, and running
> the jar from the same directory as log.properties) did not work for you. It
> worked for me in OSX Mountain Lion and JDK 6. The PropertyAction [1] passes
> the "file" attribute's value directly to FileInputStream [2], which uses
> File [3]. The Oracle javadocs should provide more details.
>
> It turns out the "resource" attribute should also work in this case (I've
> confirmed on my machine). This uses ClassLoader.getResource(), whose search
> order is defined by [4]. You need to include the directory of
> log.properties in the jar's classpath either by command-line or from the
> jar's manifest [5][6].
>
> [1]
> https://github.com/qos-ch/logback/blob/master/logback-core/src/main/java/ch/qos/logback/core/joran/action/PropertyAction.java#L72
> [2] http://docs.oracle.com/javase/6/docs/api/java/io/FileInputStream.html
> [3] http://docs.oracle.com/javase/6/docs/api/java/io/File.html
> [4]
> http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/ClassLoader.html#getResource%28java.lang.String%29
> [5]
> http://stackoverflow.com/questions/9532716/adding-the-current-directory-to-a-jar-files-classpath
>  [6]
> http://stackoverflow.com/questions/4126030/executable-jar-wont-find-the-properties-files
>
>
> On Sat, Apr 20, 2013 at 12:08 AM, Suriyanto <suriyanto at gmail.com> wrote:
>
>> Thanks again, Tony.
>>
>> Yes, if I use absolute path, it will work. However I want to use the
>> relative path so the user can put the jar and properties file anywhere as
>> long as they are put in the same directory.
>>
>> I tried to cd to dir and run from there, but logback still tells me that
>> it cannot find the properties file. Is there a way for me to know what the
>> absolute mapping that logback use when I provide a relative path?
>>
>> Thanks.
>>
>>
>> On Fri, Apr 19, 2013 at 9:15 PM, Tony Trinh <tony19 at gmail.com> wrote:
>>
>>> Ok. The file-lookup is relative to your current working directory
>>> (unless you use absolute paths). You can confirm by cd'ing into /dir and
>>> then invoking your jar.
>>>
>>> An alternative is to use an absolute path to a designated "data"
>>> directory (with environment variables). For example:
>>>
>>>     <property file="${HOME}/.myapp/log.properties" />
>>>      <property file="${APPDATA}/.myapp/log.properties" />
>>>     <property file="${PROGRAMFILES}/MyApp/log.properties" />
>>>
>>>
>>>
>>>
>>> On Fri, Apr 19, 2013 at 9:22 PM, Suriyanto <suriyanto at gmail.com> wrote:
>>>
>>>> Thanks for answering.
>>>>
>>>> I actually wanted to put the file outside the jar so the user can
>>>> easily modify it for any of their environment. The file will be on the same
>>>> directory as the jar file.
>>>>
>>>> /dir
>>>>     myapp.jar
>>>>     log.properties
>>>>
>>>> Suriyanto
>>>>
>>>>
>>>> On Fri, Apr 19, 2013 at 7:00 PM, Tony Trinh <tony19 at gmail.com> wrote:
>>>>
>>>>> If the file is in your JAR, you should be using the "resource"
>>>>> attribute instead of "file" (which searches your host filesystem).
>>>>>
>>>>>   <property resource="log.properties" />
>>>>>
>>>>>
>>>>> On Fri, Apr 19, 2013 at 8:39 PM, Suriyanto <suriyanto at gmail.com>wrote:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> I am following the instruction in the Logback manual to use an
>>>>>> external property file.
>>>>>>
>>>>>> <property file="log.properties" />
>>>>>>
>>>>>> I have log.properties file in the same directory as my executable jar
>>>>>> file, which are created as an uber jar file from Maven plugin.
>>>>>>
>>>>>> However, I keep getting the error: ERROR in
>>>>>> ch.qos.logback.core.joran.action.PropertyAction - Could not find properties
>>>>>> file [log.properties].
>>>>>>
>>>>>> Am I putting the file in the correct directory?
>>>>>>
>>>>>> Thanks,
>>>>>> Suriyanto
>>>>>>
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