[ OSGi ] 5 - Spring DM 2

[ OSGi ] 4 - Spring DM 1 에서 Spring 관련 bundle을 올리고 Activator 대신 spring.xml에 설정한 init-method, destory-method 사용을 알아봤다.

여기서는 Spring 을 이용해서 OSGi의 Service에 등록하는 것을 해보겠다. 
( 앞에서도 말했지만 일반적인 Service 등록은 http://xguru.net/tag/osgi 에서 OSGi 시작하기 4, OSGi 사직하기 5 를 참고하자. )

서비스에 등록할 인터페이스 생성

1. interface 생성

HelloWorldOSGiSpringDM  프로젝트에 HelloWorldOSGiSpringDMPrinter.java와 HelloWorldOSGiSpringDMPrinterImpl.java 파일을 생성한다. 

2. code 작성

kr.co.jabsiri.helloworldosgi.springdm.HelloWorldOSGiSpringDMPrinter.java

package kr.co.jabsiri.helloworldosgi.springdm.service;

public interface HelloWorldOSGiSpringDMPrinter {
	public void printer(String str);
}

kr.co.jabsiri.helloworldosgi.springdm.HelloWorldOSGiSpringDMPrinterImpl.java

package kr.co.jabsiri.helloworldosgi.springdm.service;

public class HelloWorldOSGiSpringDMPrinterImpl implements HelloWorldOSGiSpringDMPrinter {
	public void printer(String str) {
		System.out.println("spring dm service print string : " + str);
	}
}

3. spring.xml 내용 추가

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:osgi="http://www.springframework.org/schema/osgi" xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/osgi         http://www.springframework.org/schema/osgi/spring-osgi.xsd"> <bean id="helloOSGiSpringDM"  class="kr.co.jabsiri.helloworldosgi.springdm.HelloWorldOSGiSpringDMStarter"  init-method="start" destroy-method="stop" /> <bean id="helloWorldOSGiSpringDMPrinter" class="kr.co.jabsiri.helloworldosgi.springdm.service.HelloWorldOSGiSpringDMPrinterImpl" /> <osgi:service   interface="kr.co.jabsiri.helloworldosgi.springdm.service.HelloWorldOSGiSpringDMPrinter" ref="helloWorldOSGiSpringDMPrinter" /> </beans>

4. MANIFEST.MF 수정

Export-Package: kr.co.jabsiri.helloworldosgi.springdm.service 를 추가하자

Manifest-Version: 1.0 Bundle-ManifestVersion: 2 Bundle-Name: HelloWorldOSGiSpringDM Bundle-SymbolicName: HelloWorldOSGiSpringDM Bundle-Version: 1.0.0 Bundle-RequiredExecutionEnvironment: JavaSE-1.6 Export-Package: kr.co.jabsiri.helloworldosgi.springdm.service

등록된 서비스 사용

[ OSGi ] 3 - OSGi plugin 의존 관계 에서 작성한 HelloWorldOSGiSub 프로젝트에서 위에서 작성한 SubActivator.java 에서 helloWorldOSGiSpringDMPrinter 서비스를 호출해 보도록 하자.

1. MANIFEST.MF

Import-Package 부분에 kr.co.jabsiri.helloworldosgi.springdm.service 를 추가한다.

Manifest-Version: 1.0 Bundle-ManifestVersion: 2 Bundle-Name: HelloWorldOSGiSub Bundle-SymbolicName: sample.HelloWorldOSGiSub Bundle-Version: 1.0.0 Bundle-RequiredExecutionEnvironment: JavaSE-1.6 Import-Package: org.osgi.framework;version="1.3.0",  kr.co.jabsiri.helloworldosgi,  kr.co.jabsiri.helloworldosgi.springdm.service

2. 등록된 서비스 사용 

SubActivator.java 에 빨간박스 부분의 코드를 추가하자

package kr.co.jabsiri.helloworldosgisub;

import kr.co.jabsiri.helloworldosgi.HelloOSGiWorldPrinter;
import kr.co.jabsiri.helloworldosgi.springdm.service.HelloWorldOSGiSpringDMPrinter;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

public class SubActivator implements BundleActivator {

	private static BundleContext context;

	static BundleContext getContext() {
		return context;
	}

	public void start(BundleContext bundleContext) throws Exception {
		SubActivator.context = bundleContext;
		HelloOSGiWorldPrinter printer = new HelloOSGiWorldPrinter();
		printer.printer("I am sub activator !!!");
		
		ServiceReference ref = bundleContext.getServiceReference(HelloWorldOSGiSpringDMPrinter.class.getName());
		HelloWorldOSGiSpringDMPrinter springDMPrinter = bundleContext.getService(ref);
		springDMPrinter.printer("I am sub activator !!!");
	}

	public void stop(BundleContext bundleContext) throws Exception {
		SubActivator.context = null;
		HelloOSGiWorldPrinter printer = new HelloOSGiWorldPrinter();
		printer.printer("Bye Bye !!!");
	}
}

이 코드는 서비스로 등록된 내용을 가져와 사용하는 것이다.

배포 & 실행

1. HelloWorldOSGiSpringDM과 sample.HelloWorldOSGiSub 두 프로젝트를 Export 한다. 

2. HelloWorldOSGiSpringDM_1.0.0.jar install 

install file:HelloWorldOSGiSpringDM_1.0.0.jar 로 plugin을 install 시키고 

b 22로 plugin의 상세 정보를 확인하면 밑에 빨간색 부분처럼 HelloWorldOSGiSpringDMPrinter가 서비스에 등록되어 있는 모습을 볼수 있다.

osgi> install file:HelloWorldOSGiSpringDM_1.0.0.jar Bundle id is 22 Location             file:HelloWorldOSGiSpringDM_1.0.0.jar State                2 Bundle                  22|Installed  |    1|HelloWorldOSGiSpringDM (1.0.0) Version              1.0.0 SymbolicName         HelloWorldOSGiSpringDM BundleContext        null Module               osgi.identity; osgi.identity="HelloWorldOSGiSpringDM"; type="osgi.bundle"; version:Version="1.0.0" [id=22] ServicesInUse        null RegisteredServices   null BundleId             22 LastModified         1409211674925 Headers               Bundle-ManifestVersion = 2  Bundle-Name = HelloWorldOSGiSpringDM  Bundle-RequiredExecutionEnvironment = JavaSE-1.6  Bundle-SymbolicName = HelloWorldOSGiSpringDM  Bundle-Version = 1.0.0  Export-Package = kr.co.jabsiri.helloworldosgi.springdm.service  Manifest-Version = 1.0  osgi> start 22 osgi> spring dm start osgi> b 22 HelloWorldOSGiSpringDM_1.0.0 [22]   Id=22, Status=ACTIVE      Data Root=C:\develop\OSGi\sample\plugins\configuration\org.eclipse.osgi\22\data   "Registered Services"     {kr.co.jabsiri.helloworldosgi.springdm.service.HelloWorldOSGiSpringDMPrinter}={org.springframework.osgi.bean.name=helloWorldOSGiSpringDMPrinter, Bundle-SymbolicName=HelloWorldOS GiSpringDM, Bundle-Version=1.0.0, service.id=49, service.bundleid=22, service.scope=bundle}     {org.springframework.osgi.context.DelegatedExecutionOsgiBundleApplicationContext, org.springframework.osgi.context.ConfigurableOsgiBundleApplicationContext, org.springframework. context.ConfigurableApplicationContext, org.springframework.context.ApplicationContext, org.springframework.context.Lifecycle, java.io.Closeable, org.springframework.beans.factory.L istableBeanFactory, org.springframework.beans.factory.HierarchicalBeanFactory, org.springframework.context.MessageSource, org.springframework.context.ApplicationEventPublisher, org. springframework.core.io.support.ResourcePatternResolver, org.springframework.beans.factory.BeanFactory, org.springframework.core.io.ResourceLoader, java.lang.AutoCloseable, org.spri ngframework.beans.factory.DisposableBean}={org.springframework.context.service.name=HelloWorldOSGiSpringDM, Bundle-SymbolicName=HelloWorldOSGiSpringDM, Bundle-Version=1.0.0, service .id=50, service.bundleid=22, service.scope=singleton}   Services in use:     {org.springframework.beans.factory.xml.NamespaceHandlerResolver}={spring.osgi.core.bundle.id=18, spring.osgi.core.bundle.timestamp=1409042843468, service.id=47, service.bundleid =19, service.scope=singleton}     {org.xml.sax.EntityResolver}={spring.osgi.core.bundle.id=18, spring.osgi.core.bundle.timestamp=1409042843468, service.id=48, service.bundleid=19, service.scope=singleton}     {org.osgi.service.packageadmin.PackageAdmin}={service.ranking=2147483647, service.pid=0.org.eclipse.osgi.internal.framework.legacy.PackageAdminImpl, service.vendor=Eclipse.org -  Equinox, service.id=11, service.bundleid=0, service.scope=singleton}   Exported packages     kr.co.jabsiri.helloworldosgi.springdm.service; version="0.0.0"[exported]   No imported packages   No fragment bundles   No required bundles

3. sample.HelloWorldOSGiSub_1.0.0.jar install

그럼 서비스에 등록된 내용을 사용하는 sample.HelloWorldOSGiSub_1.0.0.jar를 install 해보자

install file:sample.HelloWorldOSGiSub_1.0.0.jar

osgi> install file:sample.HelloWorldOSGiSub_1.0.0.jar Bundle id is 23 Location             file:sample.HelloWorldOSGiSub_1.0.0.jar State                2 Bundle                  23|Installed  |    1|sample.HelloWorldOSGiSub (1.0.0) LastModified         1409212486067 Headers               Bundle-Activator = kr.co.jabsiri.helloworldosgisub.SubActivator  Bundle-ManifestVersion = 2  Bundle-Name = HelloWorldOSGiSub  Bundle-RequiredExecutionEnvironment = JavaSE-1.6  Bundle-SymbolicName = sample.HelloWorldOSGiSub  Bundle-Version = 1.0.0  Import-Package = org.osgi.framework;version="1.3.0",kr.co.jabsiri.helloworldosgi,kr.co.jabsiri.helloworldosgi.springdm.service  Manifest-Version = 1.0 Version              1.0.0 Module               osgi.identity; osgi.identity="sample.HelloWorldOSGiSub"; type="osgi.bundle"; version:Version="1.0.0" [id=23] RegisteredServices   null ServicesInUse        null BundleContext        null SymbolicName         sample.HelloWorldOSGiSub BundleId             23 osgi> start 23 print string : I am sub activator !!! spring dm service print string : I am sub activator !!!

sample.HelloWorldOSGiSub 에서는 sample.HelloWorldOSGi도 사용하고 있으니 이것도 install을 시킨다.

install file:sample.HelloWorldOSGi_1.0.0.jar

osgi> install file:sample.HelloWorldOSGi_1.0.0.jar Bundle id is 24 Location             file:sample.HelloWorldOSGi_1.0.0.jar State                2 Bundle                  24|Installed  |    1|sample.HelloWorldOSGi (1.0.0) LastModified         1409212573947 Headers               Bundle-Activator = kr.co.jabsiri.helloworldosgi.Activator  Bundle-ManifestVersion = 2  Bundle-Name = HelloWorldOSGi  Bundle-RequiredExecutionEnvironment = JavaSE-1.6  Bundle-SymbolicName = sample.HelloWorldOSGi  Bundle-Version = 1.0.0  Export-Package = kr.co.jabsiri.helloworldosgi  Import-Package = org.osgi.framework;version="1.3.0"  Manifest-Version = 1.0 Version              1.0.0 Module               osgi.identity; osgi.identity="sample.HelloWorldOSGi"; type="osgi.bundle"; version:Version="1.0.0" [id=24] RegisteredServices   null ServicesInUse        null BundleContext        null SymbolicName         sample.HelloWorldOSGi BundleId             24

그리고 start 23 을 하자 ( 23은 sample.HelloWorldOSGiSub 의 bundle 번호 )

osgi> start 23 print string : I am sub activator !!! spring dm service print string : I am sub activator !!!

그럼. 위와같이 HelloWorldOSGiSpringDM의 HelloWorldOSGiSpringDMPrinter.java에 정의한 printer method가 실행된 것을 확인한다. 

첨부 1 : HelloWorldOSGi plugin Eclipse Project 

HelloWorldOSGi_5.zip

첨부 2 : OSGi Framework 

plugins_osgi_5.zip