I'm out of town on vacation right now so I might not get a chance to
review this for a couple of days. But I'd like to provide my feedback
before anything is incorporated.
Ralph
On Aug 22, 2009, at 10:32 PM, Takeshi Kondo wrote:
<slf4j-i18n-1.5.9-SNAPSHOT.jar><slf4j-i18n-1.5.9-SNAPSHOT-sources.jar>
I've developed initial thought of SLF4j's i18n extension.
It was committed to my branch (http://github.com/takeshi/slf4j/tree/master
).
I've implemented 4 features as follows.
1. Logger interface using enum.
@see org.slf4j.i18n.I18NLogger
2. Extension point to bind log id's enum to log message and level.
@see org.slf4j.i18n.spi.LogLevelResolver
@see org.slf4j.i18n.spi.LogMessageFormatResolver
3. Resolving log message and log level from Annotation associated
from log id's enum.
@see org.slf4j.i18n.impl.AnnotationLogLevelResolver
@see org.slf4j.i18n.impl.AnnotationMessageFormatResolver
4. Resolving log message and log level from ResourceBundle
associated with log id's enum.
@see org.slf4j.i18n.impl.ResourceBundleLogLevelResolver
@see org.slf4j.i18n.impl.ResourceBundleMessageFormatResolver
For example:
----
Log Message Definition
----
public enum LogMessages {
@Error("error message {}") // log level is bound to Error.
TEST0001,
@Message("waring message {}") // log level is not specified.
TEST0002
}
----
Logging
----
public static void main(String[] args) {
I18NLogger logger = I18NLoggerFactory.getLogger(LogMain.class);
// write to error log , because LogMessages.TEST0001 is bound to
Error level.
logger.log(LogMessages.TEST0001, "xxxx");
logger.log(LogMessages.TEST0001, new NullPointerException());
// write log as error level.
logger.error(LogMessages.TEST0002, "xxxx");
// write log as warn level.
logger.warn(LogMessages.TEST0002, new NullPointerException());
}
Takeshi Kondo
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