Suppose I'm developing a library that will be used in another person's
project and my library uses slf4j. And I don't know what logging
framework they use. Should my distribution include slf4j-log412.jar and
slf4j-jdk14.jar (or, better, specify both of them as a dependency in my
maven pom.xml)? Or should I include instructions that they'll need to
download and use either of those jars, depending on which logging
framework they're using?
Here's what's in my pom.xml at the moment (for logging); the test scope
is what keeps the underlying logging framework I'm using (logback) from
being a runtime/compile dependency:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${version.slf4j}</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<!-- use provided scope on real JCL. -->
<!-- ensures it's not inadvertently pulled in, -->
<!-- so that we can use jcl-over-slf4j. -->
<version>1.1.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging-api</artifactId>
<!-- use provided scope on real JCL. -->
<!-- ensures it's not inadvertently pulled in, -->
<!-- so that we can use jcl-over-slf4j. -->
<version>1.1</version>
<scope>provided</scope>
</dependency>
<!-- the slf4j commons-logging replacement -->
<!-- if any package is using jakarta commons logging this will -->
<!-- re-route it through slf4j. -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${version.slf4j}</version>
<scope>test</scope>
</dependency>
<!-- the slf4j log4j replacement. -->
<!-- if any package is using log4j this will re-route -->
<!-- it through slf4j. -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${version.slf4j}</version>
<scope>test</scope>
</dependency>
<!-- the slf4j java.util.logging replacement. -->
<!-- if any package is using java.util.logging this will re-route -->
<!-- it through slf4j. -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>${version.slf4j}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${version.logback}</version>
<scope>test</scope>
</dependency>
On 2011-08-11 13:36, Ceki Gülcü wrote:
Hi again,
Here is another more comprehensive attempt. It's hard for me to say
how much of an improvement these are.
Comments welcome.
--
Ceki
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