STARTED 框架已经启动
ERROR 某个Bundle启动过程中引发错误
WARNING 某一Bundle引发一个警告
INFO 某一Bundle引发一个INFO类型的事件
PACKAGES_REFRESHED PackageAdmin.refreshPackage操作执行完成
STARTLEVEL_CHANGED StartLevel.setStartLevel操作执行完成
INSTALLED Bundle被安装到OSGi环境后系统发布该事件
RESOLVED Bundle被成功解析
LAZY_ACTIVATION Bundle将被延迟激活
STARTING Bundle正在被激活
STARTED Bundle被成功激活
STOPPING Bundle被停止
STOPPED Bundle正在被停止
UPDATED Bundle被更新
UNRESOLVED Bundle被UNRESOLVED
UNINSTALLED Bundle被卸载
REGISTERED 服务被注册
MODIFIED 服务被修改
UNREGISTERING 服务正在被注销
package com.example;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
import org.osgi.framework.BundleListener;
import org.osgi.framework.FrameworkEvent;
import org.osgi.framework.FrameworkListener;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceListener;
public class Activator implements BundleActivator, FrameworkListener,
BundleListener, ServiceListener {
public void start(BundleContext context) throws Exception {
//注册监听
context.addFrameworkListener(this);
context.addBundleListener(this);
context.addServiceListener(this);
}
public void stop(BundleContext context) throws Exception {
}
//处理框架事件
public void frameworkEvent(FrameworkEvent event) {
if ((event.getType() & FrameworkEvent.ERROR) != 0) {
System.err.println("Framework ERROR: " + event.getBundle());
}
}
//处理Bundle事件
public void bundleChanged(BundleEvent event) {
if ((event.getType() & BundleEvent.STARTED) != 0) {
System.err.println("Bundle STARTED: " + event.getBundle());
} else if ((event.getType() & BundleEvent.STOPPED) != 0) {
System.err.println("Bundle STOPPED: " + event.getBundle());
}
}
//处理服务事件
public void serviceChanged(ServiceEvent event) {
if ((event.getType() & ServiceEvent.REGISTERED) != 0) {
System.err.println("Service REGISTERED: "
+ event.getServiceReference());
}
}
}
public void start(BundleContext context) throws Exception {
// 获取OSGi环境中的所有安装的bundle
for (Bundle bundle : context.getBundles()) {
System.out.println("Bundle Symbolic Name: "
+ bundle.getSymbolicName());
}
// 获取OSGi运行环境中的属性（查找范围包括系统属性）
System.out.println("osgi.framework = "
+ context.getProperty("osgi.framework"));
//注册其他Bundle
context.installBundle("file:C://test_bundle_1.0.0.jar");
//在该Bundle的数据存储区中构建datacache.file文件
context.getDataFile("datacache.file");
//注册监听
context.addFrameworkListener(this);
context.addBundleListener(this);
context.addServiceListener(this);
}
public void start(BundleContext context) throws Exception {
//获取OSGi Log服务的服务引用
ServiceReference logSr = context.getServiceReference(LogService.class.getName());
//根据Log服务引用获取LogService服务实例
log = (LogService) context.getService(logSr);
//创建StringService接口服务实例
StringService ss = new StringServiceImpl(log);
//设定StringService的属性
Hashtable
//使用BundleContext注册发布StringService服务
context.registerService(StringService.class.getName(), ss, properties);
}
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Apache Log4j
Bundle-SymbolicName: org.apache.log4j
Bundle-Version: 1.2.13
Bundle-ClassPath: .;log4j.1.2.13.jar
Export-Package: org.apache.log4j;version="1.2.13",
org.apache.log4j.config;version="1.2.13",
org.apache.log4j.helpers;version="1.2.13",
org.apache.log4j.jdbc;version="1.2.13",
org.apache.log4j.jmx;version="1.2.13",
org.apache.log4j.net;version="1.2.13",
org.apache.log4j.or;version="1.2.13",
org.apache.log4j.or.jms;version="1.2.13",
org.apache.log4j.or.sax;version="1.2.13",
org.apache.log4j.spi;version="1.2.13",
org.apache.log4j.varia;version="1.2.13",
org.apache.log4j.xml;version="1.2.13"
package com.example;
public interface StringService {
String concat(String str1, String str2);
}
package com.example.internal;
import org.osgi.service.log.LogService;
import com.example.StringService;
public class StringServiceImpl implements StringService {
private LogService log;
public StringServiceImpl(LogService log) {
this.log = log;
}
public String concat(String str1, String str2) {
String str = str1 + str2;
if (log != null)
log.log(LogService.LOG_INFO, "Concat String Result is " + str);
return str;
}
}
package com.example.internal;
import java.util.Hashtable;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.framework.ServiceReference;
import org.osgi.service.log.LogService;
import com.example.StringService;
public class Activator implements BundleActivator {
private LogService log;
public void start(BundleContext context) throws Exception {
//获取OSGi Log服务的服务引用
ServiceReference logSr = context.getServiceReference(LogService.class.getName());
//根据Log服务引用获取LogService服务实例
log = (LogService) context.getService(logSr);
//创建StringService接口服务实例
StringService ss = new StringServiceImpl(log);
//设定StringService的属性
Hashtable
//使用BundleContext注册发布StringService服务
context.registerService(StringService.class.getName(), ss, properties);
}
public void stop(BundleContext context) throws Exception {
}
}
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Example Plug-in
Bundle-SymbolicName: com.example
Bundle-Version: 1.0.0
Bundle-Activator: com.example.internal.Activator
Bundle-Vendor: EGRID
Eclipse-LazyStart: true
Import-Package: org.osgi.framework;version="1.3.0",
org.osgi.service.log;version="1.3.0"
Export-Package: com.example
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