[英]Services are not listed in Karaf while migrating from Felix SCR to OSGI Declarative Services
我正在從 Felix SCR 注釋遷移到 R6 OSGI 聲明式服務,但該服務未在 karaf 中列出。根據下面的代碼SampleServiceImpl應該列出的是 karaf。但它沒有列出。 我必須在 pom.xml 中進行任何其他配置嗎?
package com.sample.test;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.component.annotations.ReferencePolicy;
import org.osgi.service.component.annotations.ConfigurationPolicy;
import org.osgi.service.component.annotations.Deactivate;
@Component (configurationPolicy = ConfigurationPolicy.OPTIONAL, immediate = true, service = SampleService.class)
public class SampleServiceImpl implements SampleService
{
@Reference (policy = ReferencePolicy.DYNAMIC, service = AgentService.class , bind = "bindAgentService",unbind ="unbindAgentService")
private AgentService agentService;
@Activate
protected void activate() {
System.out.println("activate ");
}
@Deactivate
protected void deactivate() {
System.out.println("de-activate ");
}
}
這是我正在使用的 pom.xml。
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<groupId>com.test.sample</groupId>
<artifactId>compile</artifactId>
<version>1.0.0</version>
<dependencies>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>osgi.cmpn</artifactId>
<version>6.0.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
@Reference (policy = ReferencePolicy.DYNAMIC, service = AgentService.class , bind = "bindAgentService",unbind ="unbindAgentService")
您列出了 2 個方法, bindAgentService
和unbindAgentService
,它們沒有出現在您的 class 中。 您還可以將@Reference
注釋應用於字段。 你想要什么? 現場注入? 方法注入? 兩個都? 如果您只想進行字段注入,請刪除注釋中的bind
和unbind
元素。
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