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我試過了這個組件工廠的示例link。 接口:karaf在組件工廠示例中不顯示任何錯誤
package com.java.examplefactoryservice;
public interface ExampleFactoryService {
public void start();
public void stop();
}
工廠提供:
package com.java.examplecomponentfactoryserviceprovider;
import java.util.Map;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import com.java.examplefactoryservice.ExampleFactoryService;
@Component(name = "ExampleComponentFactoryServiceProvider", factory = "example.factory.provider")
public class ExampleComponentFactoryServiceProvider implements ExampleFactoryService {
@Activate
public void activate(Map<String, Object> properties) {
System.out.println("Actiavted!!!");
}
@Override
public void start() {
System.out.println("Started !!!!");
}
@Override
public void stop() {
System.out.println("Stopped!!!");
}
}
廠長:
package com.java.examplecomponentfatorymanager;
import java.util.Map;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.osgi.service.component.ComponentFactory;
import org.osgi.service.component.ComponentInstance;
import com.java.examplefactoryservice.ExampleFactoryService;
@Component(name = "ExampleComponentFactoryManager", enabled = true, immediate = true)
public class ExampleComponentFactoryManager {
@Reference(target = "(component.factory=example.factory.provider)", bind = "setFactory", unbind = "unsetFactory")
private ComponentFactory factory;
private ComponentInstance instance;
private ExampleFactoryService service;
@Activate
public void activate(Map<String, Object> properties) {
System.out.println("activate in manager !!!!");
instance = factory.newInstance(null);
service = (ExampleFactoryService) instance.getInstance();
System.out.println("service = " + service.toString());
}
public void setFactory(final ComponentFactory factory) {
this.factory = factory;
System.out.println("setfactory called");
}
public void unsetFactory(ComponentFactory factory) {
this.factory = null;
System.out.println("Unset factory called");
}
}
一切順利的編譯和安裝在karaf 2.3.10。工廠已成功註冊。但沒有任何顯示。
karaf輸出:
[ 71] [Active ] [ ] [ 80] osgi.cmpn (4.3.1.201210102024)
[ 79] [Active ] [ ] [ 80] testI (0.0.1.SNAPSHOT)
[ 80] [Active ] [ ] [ 80] testImpl (0.0.3.SNAPSHOT)
[ 110] [Active ] [ ] [ 80] Apache Felix Declarative Services (1.6.0)
[ 140] [Active ] [ ] [ 80] ExampleFactoryService (0.0.1.SNAPSHOT)
[ 152] [Active ] [ ] [ 80] ExampleComponentFactoryServiceProvider (0.0.1.SNAPSHOT)
[ 158] [Active ] [ ] [ 80] ExampleComponentFatoryManager (0.0.1.SNAPSHOT)
SCR:列表輸出
[9 ] [FACTORY ] ExampleComponentFactoryServiceProvider
SCR:細節
scr:deactivate scr:details
[email protected]> scr:details ExampleComponentFactoryServiceProvider
Component Details
Name : ExampleComponentFactoryServiceProvider
State : FACTORY
Properties :
service.vendor=The Apache Software Foundation
component.factory=example.factory.provider
component.name=ExampleComponentFactoryServiceProvider
References
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">
<modelVersion>4.0.0</modelVersion>
<groupId>ExampleComponentFatoryManager</groupId>
<artifactId>ExampleComponentFatoryManager</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<extensions>true</extensions>
<version>2.3.5</version>
<configuration>
<instructions>
<Import-Package>
*,
javax.servlet*;version="[2.5,4)"
</Import-Package>
</instructions>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-scr-plugin</artifactId>
<version>1.14.0</version>
<executions>
<execution>
<id>generate-scr-scrdescriptor</id>
<goals>
<goal>scr</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.scr.annotations</artifactId>
<version>1.9.6</version>
</dependency>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.osgi.compendium</artifactId>
<version>1.4.0</version>
</dependency>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.core</artifactId>
<version>4.3.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>ExampleFactoryService</groupId>
<artifactId>ExampleFactoryService</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
最初我嘗試在karaf命令行中安裝捆綁包而不是名稱,它顯示捆綁包的絕對路徑。經過一段時間,我試圖通過放置捆綁包來展示捆綁包的確切名稱。 我不明白karaf爲什麼在執行適當的命令行安裝時未顯示軟件包名稱的行爲。它完全不顯示任何錯誤[dependency/compilation/wiredexecption]。任何人都可以告訴我包中有什麼問題嗎?
是從'SCR全輸出:list'? 'ExampleComponentFactoryManager'缺少 –
是的。我只安裝了一個軟件包。 ExampleComponentFactoryManager不顯示在scr:list中。 – Shriram
@Neil,至少我期待SOP將被打印。但沒有打印。另外,如果我通過cmd行安裝它,捆綁包名稱不會顯示,而是顯示絕對路徑。我不明白卡拉夫的行爲。這是卡拉夫的性能問題還是我做錯了什麼? – Shriram