AEM 6.3使用OSGi R6註解和吊帶模式

Question

我試圖使用OSGi R6註釋來創建OSGi服務，然後注入其在吊帶Model類是這樣的：

package com.aem.sites.models; 

import javax.annotation.PostConstruct; 
import javax.inject.Inject; 

import org.apache.sling.api.resource.Resource; 
import org.apache.sling.models.annotations.Model; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 

import com.aem.sites.services.WeatherService; 

@Model(adaptables=Resource.class) 
public class Banner { 

    final static Logger logger = LoggerFactory.getLogger(Banner.class); 

    @Inject 
    private WeatherService weatherService; 

    private String message; 

     @PostConstruct 
     public void init() { 
      logger.info("##############################################################calling the init method"); 
      message = weatherService.getName(); 
     } 

     public String getMessage() { 
      logger.info("##############################################################inside the get message method"); 
      return message; 
     } 

} 

OSGi的配置界面看起來是這樣的：

package com.aem.sites.interfaces; 

import org.osgi.service.metatype.annotations.AttributeDefinition; 
import org.osgi.service.metatype.annotations.AttributeType; 
import org.osgi.service.metatype.annotations.ObjectClassDefinition; 

@ObjectClassDefinition(name = "Configuration", description = "Configuration file") 
public @interface Configuration { 

    @AttributeDefinition(
       name = "String Property", 
       description = "Sample String property", 
       type = AttributeType.STRING 
      ) 
    public String getText() default "It's a test"; 
} 

和服務類看起來是這樣的：

package com.aem.sites.services.impl; 


import org.osgi.service.component.annotations.Activate; 
import org.osgi.service.component.annotations.Component; 
import org.osgi.service.component.annotations.Deactivate; 
import org.osgi.service.component.annotations.Modified; 
import org.osgi.service.component.annotations.ConfigurationPolicy; 
import org.osgi.service.metatype.annotations.Designate; 

import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 


import com.aem.sites.interfaces.Configuration; 
import com.aem.sites.services.WeatherService; 

@Component(service=WeatherService.class, 
immediate=true, 
configurationPid = "com.aem.sites.services.impl.WeatherServiceImpl", 
configurationPolicy=ConfigurationPolicy.REQUIRE 
) 
@Designate(ocd = Configuration.class) 
public class WeatherServiceImpl implements WeatherService{ 

    final static Logger logger =LoggerFactory.getLogger(WeatherServiceImpl.class); 

    private Configuration config; 

    private String name; 

    @Activate 
    @Modified 
    protected final void activate(Configuration configuration) { 
     logger.info("##############################################################calling activate method inside the weather service impl class"); 
     this.config = configuration; 
     name = config.getText(); 
    } 

    @Deactivate 
    protected void deactivate() { 
    } 

    @Override 
    public String getName() { 
     logger.info("##############################################################calling get name method inside the weather service impl class"); 
     return name; 
    } 
} 

和鰭加盟服務接口：

package com.aem.sites.services; 

public interface WeatherService { 

    public String getName(); 

} 

我試圖用吊帶POJO的模型在HTL類是這樣的：

<sly data-sly-use.banner="com.aem.sites.models.Banner"> 

    <div class="inner"> 
     <h2>${banner.message}</h2 

    </div> 

</sly> 

但我無法看到任何文本。我使用了logger.info，但無法在日誌文件中看到它。我確信我在這裏做了一些非常錯誤的事情，但是因爲我剛剛開始使用OSGi R6註釋和Sling模型進行遊戲，所以無法找到它。任何幫助表示讚賞。

添加Maven依賴：

父pom.xml的

<!-- <plugin> 
        <groupId>org.apache.felix</groupId> 
        <artifactId>maven-bundle-plugin</artifactId> 
        <version>2.5.3</version> 
       </plugin> -->    
       <plugin> 
         <groupId>org.apache.felix</groupId> 
         <artifactId>maven-bundle-plugin</artifactId> 
         <version>3.3.0</version> 
         <inherited>true</inherited> 
       </plugin> 

<dependency> 
       <groupId>org.osgi</groupId> 
       <artifactId>org.osgi.service.component.annotations</artifactId> 
       <version>1.3.0</version> 
       <scope>compile</scope> 
      </dependency> 

      <dependency> 
       <groupId>org.osgi</groupId> 
       <artifactId>org.osgi.annotation</artifactId> 
       <version>6.0.0</version> 
      </dependency> 

      <dependency> 
       <groupId>org.osgi</groupId> 
       <artifactId>org.osgi.service.metatype.annotations</artifactId> 
       <version>1.3.0</version> 
      </dependency> 

核心的pom.xml

<dependency> 
       <groupId>org.osgi</groupId> 
       <artifactId>org.osgi.service.component.annotations</artifactId> 
      </dependency> 
      <dependency> 
       <groupId>org.osgi</groupId> 
       <artifactId>org.osgi.annotation</artifactId> 
      </dependency> 
      <dependency> 
       <groupId>org.osgi</groupId> 
       <artifactId>org.osgi.service.metatype.annotations</artifactId> 
      </dependency> 

<plugin> 
       <groupId>org.apache.felix</groupId> 
       <artifactId>maven-bundle-plugin</artifactId> 
       <extensions>true</extensions> 
       <configuration> 
        <instructions> 
         <Bundle-SymbolicName>com.aem.site.aem-site</Bundle-SymbolicName> 
         <Sling-Model-Packages> 
          com.aem.sites.models 
         </Sling-Model-Packages> 
         <Import-Package>javax.inject;version=0.0.0,*</Import-Package> 
        </instructions> 
       </configuration> 
      </plugin> 

Answer 1

在IMPL你已經把service=WeatherServiceImpl.class這是不正確的服務，它應該是服務接口名稱。

所以，在WeatherServiceImpl改變

@Component(service=WeatherServiceImpl.class, 

到

@Component(service=WeatherService.class, 

..

EDIT：還configurationPolicy=ConfigurationPolicy.REQUIRE意味着應該有至少一個配置爲使DS組件被激活。 （配置代碼不會工作）

所以你可以去系統/system/console/configMgr/com.aem.sites.services.impl.WeatherServiceImpl並把一個值並保存。或者您可以將configurationPolicy設置爲可選，並且您的代碼將在沒有配置的情況下工作。

Answer 2

爲了使吊帶可選型號，你必須正確地配置maven-bundle-plugin的<Sling-Model-Packages>節，看到https://sling.apache.org/documentation/bundles/models.html#basic-usage

您可以檢查模型是否正確使用吊索模型Web控制檯暴露：http://localhost:4502/system/console/status-slingmodels