第 8 章 JBoss EAP MBean Services

package org.jboss.example.mbean.support;
public interface ConfigServiceMBean {
    int getTimeout();
    void start();
    void stop();
}
package org.jboss.example.mbean.support;
public class ConfigService implements ConfigServiceMBean {
    int timeout;
    @Override
    public int getTimeout() {
        return timeout;
    }
    @Override
    public void start() {
        //Create a random number between 3000 and 6000 milliseconds
        timeout = (int)Math.round(Math.random() * 3000) + 3000;
        System.out.println("Random timeout set to " + timeout + " seconds");
    }
    @Override
    public void stop() {
        timeout = 0;
    }
}

package org.jboss.example.mbean.support;
import org.jboss.system.ServiceMBean;
public interface PlainThreadMBean extends ServiceMBean {
    void setConfigService(ConfigServiceMBean configServiceMBean);
}

package org.jboss.example.mbean.support;
import org.jboss.system.ServiceMBeanSupport;
public class PlainThread extends ServiceMBeanSupport implements PlainThreadMBean {
    private ConfigServiceMBean configService;
    private Thread thread;
    private volatile boolean done;
    @Override
    public void setConfigService(ConfigServiceMBean configService) {
        this.configService = configService;
    }
    @Override
    protected void startService() throws Exception {
        System.out.println("Starting Plain Thread MBean");
        done = false;
        thread = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    while (!done) {
                        System.out.println("Sleeping....");
                        Thread.sleep(configService.getTimeout());
                        System.out.println("Slept!");
                    }
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                }
            }
        });
        thread.start();
    }
    @Override
    protected void stopService() throws Exception {
        System.out.println("Stopping Plain Thread MBean");
        done = true;
    }
}

package org.jboss.example.mbean.support;
public interface ConfigServiceMBean {
    int getTimeout();
    void start();
    void stop();
}
package org.jboss.example.mbean.support;
public class ConfigService implements ConfigServiceMBean {
    int timeout;
    @Override
    public int getTimeout() {
        return timeout;
    }
    @Override
    public void start() {
        //Create a random number between 3000 and 6000 milliseconds
        timeout = (int)Math.round(Math.random() * 3000) + 3000;
        System.out.println("Random timeout set to " + timeout + " seconds");
    }
    @Override
    public void stop() {
        timeout = 0;
    }
}

package org.jboss.example.mbean.support;
import org.jboss.system.ServiceMBean;
public interface PlainThreadMBean extends ServiceMBean {
    void setConfigService(ConfigServiceMBean configServiceMBean);
}

package org.jboss.example.mbean.support;
import org.jboss.system.ServiceMBeanSupport;
public class PlainThread extends ServiceMBeanSupport implements PlainThreadMBean {
    private ConfigServiceMBean configService;
    private Thread thread;
    private volatile boolean done;
    @Override
    public void setConfigService(ConfigServiceMBean configService) {
        this.configService = configService;
    }
    @Override
    protected void startService() throws Exception {
        System.out.println("Starting Plain Thread MBean");
        done = false;
        thread = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    while (!done) {
                        System.out.println("Sleeping....");
                        Thread.sleep(configService.getTimeout());
                        System.out.println("Slept!");
                    }
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                }
            }
        });
        thread.start();
    }
    @Override
    protected void stopService() throws Exception {
        System.out.println("Stopping Plain Thread MBean");
        done = true;
    }
}

<server xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="urn:jboss:service:7.0 jboss-service_7_0.xsd"
        xmlns="urn:jboss:service:7.0">
 <mbean code="org.jboss.example.mbean.support.ConfigService" name="jboss.support:name=ConfigBean"/>
 <mbean code="org.jboss.example.mbean.support.PlainThread" name="jboss.support:name=ThreadBean">
  <attribute name="configService">
   <inject bean="jboss.support:name=ConfigBean"/>
  </attribute>
 </mbean>
</server>

<server xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="urn:jboss:service:7.0 jboss-service_7_0.xsd"
        xmlns="urn:jboss:service:7.0">
 <mbean code="org.jboss.example.mbean.support.ConfigService" name="jboss.support:name=ConfigBean"/>
 <mbean code="org.jboss.example.mbean.support.PlainThread" name="jboss.support:name=ThreadBean">
  <attribute name="configService">
   <inject bean="jboss.support:name=ConfigBean"/>
  </attribute>
 </mbean>
</server>