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EJB Tutorial from JBoss: management bean
File: ServiceOneLocal.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
public interface ServiceOneLocal
{
public void setAttribute(int attribute);
public int getAttribute();
}
File: ServiceOneManagement.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
import org.jboss.annotation.ejb.Management;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
public interface ServiceOneManagement
{
void setAttribute(int attribute);
int getAttribute();
String sayHello();
void create() throws Exception;
void start() throws Exception;
void stop();
void destroy();
}
File: ServiceOneRemote.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
public interface ServiceOneRemote
{
public void setAttribute(int attribute);
public int getAttribute();
}
File: ServiceThree.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
import org.jboss.annotation.ejb.Service;
import org.jboss.annotation.ejb.Depends;
import org.jboss.annotation.ejb.Management;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;
import javax.management.ObjectName;
import javax.management.MBeanServerFactory;
import javax.management.MBeanServer;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
@Service
@Management(ServiceThreeManagement.class)
public class ServiceThree implements ServiceThreeManagement
{
@Depends ("jboss.j2ee:jar=tutorial.jar,name=ServiceOne,service=EJB3,type=ManagementInterface")
public ObjectName serviceOneName;
private ServiceTwoManagement service2;
@Depends ("tutorial:service=serviceTwo")
public void setServiceTwo(ServiceTwoManagement service2)
{
this.service2 = service2;
}
public String serviceOneHello()throws Exception
{
Object[] args = new Object[0];
String[] signature = new String[0];
System.out.println("ServiceThree - Calling ServiceOne.sayHello() via JMX server");
MBeanServer server = (MBeanServer)MBeanServerFactory.findMBeanServer(null).get(0);
return (String)server.invoke(serviceOneName, "sayHello", args, signature);
}
public String serviceTwoHello()
{
System.out.println("ServiceThree - Calling ServiceTwo.sayHello() via MBean proxy");
return service2.sayHello();
}
// Interceptors
@AroundInvoke
public Object intercept(InvocationContext ctx) throws Exception
{
System.out.println("ServiceThree - Interceptor");
return ctx.proceed();
}
// Lifecycle methods
public void start() throws Exception
{
System.out.println("ServiceThree - Starting");
}
public void stop()
{
System.out.println("ServiceThree - Stopping");
}
}
File: ServiceThreeManagement.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
public interface ServiceThreeManagement
{
String serviceOneHello()throws Exception;
String serviceTwoHello();
void start() throws Exception;
void stop();
}
File: ServiceTwo.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
import org.jboss.annotation.ejb.Service;
import org.jboss.annotation.ejb.Depends;
import org.jboss.annotation.ejb.Management;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
@Service (objectName = "tutorial:service=serviceTwo")
@Management(ServiceTwoManagement.class)
@Depends ("jboss.j2ee:jar=tutorial.jar,name=ServiceOne,service=EJB3")
public class ServiceTwo implements ServiceTwoManagement
{
public String sayHello()
{
return "Hello from service Two";
}
// Lifecycle methods
public void start() throws Exception
{
System.out.println("ServiceTwo - Starting");
}
public void stop()
{
System.out.println("ServiceTwo - Stopping");
}
}
File: ServiceTwoManagement.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
public interface ServiceTwoManagement
{
String sayHello();
void start() throws Exception;
void stop() throws Exception;
}
File: ServiceOne.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.bean;
import javax.ejb.Local;
import javax.ejb.Remote;
import org.jboss.annotation.ejb.Service;
import org.jboss.annotation.ejb.Management;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57207 $
*/
@Service
@Local(ServiceOneLocal.class)
@Remote(ServiceOneRemote.class)
@Management(ServiceOneManagement.class)
public class ServiceOne implements ServiceOneLocal, ServiceOneRemote, ServiceOneManagement
{
int attribute;
public void setAttribute(int attribute)
{
this.attribute = attribute;
}
public int getAttribute()
{
return this.attribute;
}
public String sayHello()
{
return "Hello from service One";
}
// Lifecycle methods
public void create() throws Exception
{
System.out.println("ServiceOne - Creating");
}
public void start() throws Exception
{
System.out.println("ServiceOne - Starting");
}
public void stop()
{
System.out.println("ServiceOne - Stopping");
}
public void destroy()
{
System.out.println("ServiceOne - Destroying");
}
}
File: Client.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.service.client;
import org.jboss.tutorial.service.bean.ServiceOneRemote;
import org.jboss.jmx.adaptor.rmi.RMIAdaptor;
import javax.naming.InitialContext;
import javax.management.Attribute;
import javax.management.ObjectName;
public class Client
{
public static void main(String[] args) throws Exception
{
InitialContext ctx = new InitialContext();
//Get hold of the MBean server invoker
RMIAdaptor server = (RMIAdaptor)ctx.lookup("jmx/invoker/RMIAdaptor");
//Set attribute on singleton ServiceOne via remote interface
ServiceOneRemote serviceOne = (ServiceOneRemote) ctx.lookup("ServiceOne/remote");
serviceOne.setAttribute(100);
//Create object name for ServiceOne
ObjectName service1 = new ObjectName("jboss.j2ee:jar=tutorial.jar,service=EJB3,name=ServiceOne,type=ManagementInterface");
//Get attribute of singleton ServiceOne via JMX
int attr1 = (Integer)server.getAttribute(service1, "Attribute");
System.out.println("attribute value for singleton obtained via JMX is what we set via remote i/f: " + attr1);
//Create object name for ServiceThree
ObjectName service3 = new ObjectName("jboss.j2ee:jar=tutorial.jar,service=EJB3,name=ServiceThree,type=ManagementInterface");
//Call serviceOneHello() and serviceTwoHello() on ServiceThree
Object[] noArgs = new Object[0];//No arguments
String[] noSig = new String[0];//No parameters in signature
String service1Hello = (String)server.invoke(service3, "serviceOneHello", noArgs, noSig);
System.out.println(service1Hello);
String service2Hello = (String)server.invoke(service3, "serviceTwoHello", noArgs, noSig);
System.out.println(service2Hello);
}
}
