Java AEM 6.3-使用OSGi R6注释创建事件处理程序
我已经通过以下方法创建了一个事件处理程序,它运行良好。但是,我收到警告“添加的字段SlingConstants.TOPIC_RESOURCE_已弃用”。我进行了一些搜索,发现了以下线索: 以下是我面临的挑战: 1) 我想为我的事件处理程序创建一个单独的配置接口。我试过了,但不起作用Java AEM 6.3-使用OSGi R6注释创建事件处理程序,java,osgi,aem,sling,Java,Osgi,Aem,Sling,我已经通过以下方法创建了一个事件处理程序,它运行良好。但是,我收到警告“添加的字段SlingConstants.TOPIC_RESOURCE_已弃用”。我进行了一些搜索,发现了以下线索: 以下是我面临的挑战: 1) 我想为我的事件处理程序创建一个单独的配置接口。我试过了,但不起作用 package com.aem.sites.interfaces; import org.apache.sling.api.SlingConstants; import org.osgi.service.event
package com.aem.sites.interfaces;
import org.apache.sling.api.SlingConstants;
import org.osgi.service.event.EventConstants;
import org.osgi.service.metatype.annotations.AttributeDefinition;
import org.osgi.service.metatype.annotations.AttributeType;
import org.osgi.service.metatype.annotations.ObjectClassDefinition;
@ObjectClassDefinition(name = "Temperature Listener Configuration")
public @interface TemperatureListenerConfiguration {
@AttributeDefinition(
name = EventConstants.EVENT_FILTER,
description = "Configurable paths for temperature event listener",
type = AttributeType.STRING
)
String getPaths() default "/content/aemsite/en/jcr:content/root/responsivegrid/banner";
@AttributeDefinition(
name = EventConstants.EVENT_TOPIC,
description = "Event types",
type = AttributeType.STRING
)
String[] getEventTypes() default {SlingConstants.TOPIC_RESOURCE_ADDED,SlingConstants.TOPIC_RESOURCE_CHANGED, SlingConstants.TOPIC_RESOURCE_REMOVED};
}
package com.aem.sites.listeners;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Modified;
import org.osgi.service.event.Event;
import org.osgi.service.event.EventHandler;
import org.osgi.service.metatype.annotations.Designate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.aem.sites.interfaces.TemperatureListenerConfiguration;
@Component(immediate=true,
service=EventHandler.class,
configurationPid = "com.aem.sites.listeners.EventHandler")
@Designate(ocd=TemperatureListenerConfiguration.class)
public class TemperaturePropertyListener implements EventHandler{
private final Logger logger = LoggerFactory.getLogger(getClass());
@Override
public void handleEvent(Event event) {
logger.info("*********************Event handler*****************************");
}
@Activate
@Modified
public void activate(TemperatureListenerConfiguration config) {
//config.getPaths();
logger.info("**************************TemperaturePropertyListener******************activate**********************");
}
}
我还想要解决SlingConstants不推荐使用的问题。不确定ResourceChangeListener是否是我问题的答案,如果是,那么代码中的所有内容将如何协同工作
提前谢谢
===============================
最新代码
package com.aem.sites.listeners;
import java.util.List;
import org.apache.sling.api.resource.observation.ResourceChange;
import org.apache.sling.api.resource.observation.ResourceChangeListener;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Modified;
import org.osgi.service.metatype.annotations.Designate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.aem.sites.interfaces.TemperatureListenerConfiguration;
@Component(immediate=true,
service=ResourceChangeListener.class,
configurationPid = "com.aem.sites.listeners.TemperaturePropertyListener")
@Designate(ocd=TemperatureListenerConfiguration.class)
public class TemperaturePropertyListener implements ResourceChangeListener{
private final Logger logger = LoggerFactory.getLogger(getClass());
@Override
public void onChange(List<ResourceChange> changes) {
for (final ResourceChange change : changes) {
logger.info("**************************TemperaturePropertyListener******************change type**********************"+change.getType());
}
}
@Activate
@Modified
public void activate(TemperatureListenerConfiguration config) {
//config.getPaths();
logger.info("**************************TemperaturePropertyListener******************activate**********************");
}
}
查看Sling9文档中的
org.apache.sling.api.SlingConstants
的Javadoc:
它特别告诉您添加的主题\u资源\u
已被弃用:
不赞成。改为注册一个
阅读ResourceChangeListener
的文档,此外,您还可以查看来自ACS示例的:
将其转换为R6声明性服务应该不难
此外,这里还有来自sling项目和
尝试模仿那些属性在同一类中的类。谢谢@Ahmed的回复。我已经添加了更新的代码。如果您认为合适的话,请看一看并提出修改建议好吗?@user972418您看到问题了吗?它不起作用吗?乍一看,它似乎没什么问题。它没有抛出任何错误,也不起作用。我觉得还有一件事是,我通过实现ResourceChangeListener而不是EventHandler改变了实现。我现在还有一个问题,什么时候应该使用事件处理程序,什么时候应该使用事件侦听器?这有什么区别?对不起,问题太多了。嗨,对不起,我没有时间看代码,我用sling repo的resourceChangeListener示例更新了我的答案。还有一件事。在ResourceChange类上,getAddedPropertyNames()等方法已被弃用。如果我想知道节点上已更改的属性,您建议我应该怎么做。
package com.aem.sites.interfaces;
import org.apache.sling.api.resource.observation.ResourceChangeListener;
import org.osgi.service.metatype.annotations.AttributeDefinition;
import org.osgi.service.metatype.annotations.AttributeType;
import org.osgi.service.metatype.annotations.ObjectClassDefinition;
@ObjectClassDefinition(name = "Temperature Listener Configuration")
public @interface TemperatureListenerConfiguration {
@AttributeDefinition(
name = ResourceChangeListener.PATHS,
description = "Configurable paths for temperature event listener",
type = AttributeType.STRING
)
String[] getPaths() default {"/content/aemsite/en/jcr:content/root/responsivegrid/banner"};
@AttributeDefinition(
name = ResourceChangeListener.CHANGES,
description = "Event types",
type = AttributeType.STRING
)
String[] getEventTypes() default {"ADDED","REMOVED","CHANGED","PROVIDER_ADDED", "PROVIDER_REMOVED"};
}