Apache Felix Event Admin在ServiceMix容器下使用

来源：互联网发布：java 引号转义编辑：程序博客网时间：2024/06/04 18:04

1、首先在pom文件中引用

<dependency><groupId>org.osgi</groupId><artifactId>org.osgi.service.event</artifactId><version>1.3.1</version><type>jar</type></dependency>

2、在blueprint文件下引入Event服务，才可以将消息推送到Event里面

<reference id="EventAdmin" interface="org.osgi.service.event.EventAdmin" availability="mandatory"/>

3、将服务注入到Bean里面使用

public class EventAdminUtils{    private EventAdmin eventAdmin;    public EventAdmin getEventAdmin() {        return eventAdmin;    }    public void setEventAdmin(EventAdmin eventAdmin) {        this.eventAdmin = eventAdmin;    }    public boolean SyncEvent(String topic, Dictionary props) {        Event reportGeneratedEvent = new Event(topic,props);        eventAdmin.sendEvent(reportGeneratedEvent);        return true;    }    public boolean AsyncEvent(String topic, Dictionary props) {        Event reportGeneratedEvent = new Event(topic,props);        eventAdmin.postEvent(reportGeneratedEvent);        return true;    }}

blueprint注入服务

<bean id="adminEvent" class="com.test.event.impl.utils">     <property name="eventAdmin" ref="EventAdmin"/></bean>

4、当做一个服务发布出去，需要用到的地方，引用服务就可以

创建一个接口类：

public interface IEventAdminUtils {    public boolean SyncEvent(String topic,Dictionary props);    public boolean AsyncEvent(String topic,Dictionary props);}

创建一个实现类：

public class EventAdminUtils implements IEventAdminUtils{    private EventAdmin eventAdmin;    public EventAdmin getEventAdmin() {        return eventAdmin;    }    public void setEventAdmin(EventAdmin eventAdmin) {        this.eventAdmin = eventAdmin;    }    public boolean SyncEvent(String topic, Dictionary props) {        Event reportGeneratedEvent = new Event(topic,props);        eventAdmin.sendEvent(reportGeneratedEvent);        return true;    }    public boolean AsyncEvent(String topic, Dictionary props) {        Event reportGeneratedEvent = new Event(topic,props);        eventAdmin.postEvent(reportGeneratedEvent);        return true;    }}

blueprint中发布服务

<service ref="Sender" interface="com.test.event.utils.IEventAdminUtils">    </service>

5、从Event里面拿出内容

public class Handler implements EventHandler {    @Override    public void handleEvent(Event event) {        String reportMsg = (String) event.getProperty("message");    }}

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