[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-1584) @Logger and Spring beans
Michael Youngstrom (JIRA)
jira-events at lists.jboss.org
Tue Jul 3 16:42:51 EDT 2007
[ http://jira.jboss.com/jira/browse/JBSEAM-1584?page=comments#action_12367584 ]
Michael Youngstrom commented on JBSEAM-1584:
--------------------------------------------
With the fix of JBSEAM-1583 @Logger should work fine if you use <seam:component/> or <seam:component intercept="false"/> if you don't want seam to create a proxy. Is that good enough? Or do you want a SeamLoggerPostProcessor?
Mike
> @Logger and Spring beans
> ------------------------
>
> Key: JBSEAM-1584
> URL: http://jira.jboss.com/jira/browse/JBSEAM-1584
> Project: JBoss Seam
> Issue Type: Feature Request
> Components: Spring
> Affects Versions: 2.0.0.BETA1
> Reporter: Magnus Heino
> Assigned To: Michael Youngstrom
>
> It would be nice if spring beans could be scanned for @Logger and injected with Log instances just like seam components.
> Using the code below, you can add this to applicationContext.xml...
> <bean class="org.jboss.seam.ioc.spring.LoggerPostProcessor" />
> ...to have all spring beans scanned for @Logger and have a Log instance injected, just like seam components. Then you can access the same context and log functionallity in your spring beans as in your seam components.
> I guess the seam spring namespace could be extended with <seam:logger/> to make it even more simple to use.
> package org.jboss.seam.ioc.spring;
> import java.lang.reflect.Field;
> import org.jboss.seam.annotations.Logger;
> import org.jboss.seam.log.Logging;
> import org.springframework.beans.BeansException;
> import org.springframework.beans.factory.config.BeanPostProcessor;
> import org.springframework.util.ReflectionUtils;
> import org.springframework.util.StringUtils;
> import org.springframework.util.ReflectionUtils.FieldCallback;
> public class LoggerPostProcessor implements BeanPostProcessor {
> public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
> return bean;
> }
> public Object postProcessBeforeInitialization(final Object bean, final String beanName) throws BeansException {
> ReflectionUtils.doWithFields(bean.getClass(), new FieldCallback() {
> public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException {
> if (field.isAnnotationPresent(Logger.class)) {
> String category = field.getAnnotation(Logger.class).value();
>
> if(!StringUtils.hasText(category)) {
> category = bean.getClass().getName();
> }
>
> ReflectionUtils.makeAccessible(field);
> field.set(bean, Logging.getLog(category));
> }
> }
> });
> return bean;
> }
> }
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