/*
* JBoss, the OpenSource J2EE webOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package javax.management.modelmbean;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamField;
import java.io.StreamCorruptedException;
import javax.management.MBeanNotificationInfo;
import javax.management.Descriptor;
import javax.management.DescriptorAccess;
import org.jboss.mx.modelmbean.ModelMBeanConstants;
import org.jboss.mx.util.Serialization;
/**
* Represents a notification in a Model MBean's management interface.
*
* @see javax.management.modelmbean.ModelMBeanInfo
* @see javax.management.modelmbean.ModelMBeanAttributeInfo
*
* @author <a href="mailto:juha@jboss.org">Juha Lindfors</a>.
* @author <a href="mailto:adrian.brock@happeningtimes.com">Adrian Brock</a>.
* @version $Revision: 1.4 $
*
* <p><b>20020715 Adrian Brock:</b>
* <ul>
* <li> Serialization
* </ul>
*/
public class ModelMBeanNotificationInfo
extends MBeanNotificationInfo
implements DescriptorAccess, Cloneable
{
// Attributes ----------------------------------------------------
private Descriptor descriptor = null;
// Static --------------------------------------------------------
private static final long serialVersionUID;
private static final ObjectStreamField[] serialPersistentFields;
static
{
switch (Serialization.version)
{
case Serialization.V1R0:
serialVersionUID = -5211564525059047097L;
serialPersistentFields = new ObjectStreamField[]
{
new ObjectStreamField("ntfyDescriptor", Descriptor.class)
};
break;
default:
serialVersionUID = -7445681389570207141L;
serialPersistentFields = new ObjectStreamField[]
{
new ObjectStreamField("notificationDescriptor", Descriptor.class)
};
}
}
// Constructors --------------------------------------------------
public ModelMBeanNotificationInfo(String[] notifTypes, String name, String description)
{
super(notifTypes, name, description);
setDescriptor(createDefaultDescriptor());
}
public ModelMBeanNotificationInfo(String[] notifTypes, String name, String description,
Descriptor descriptor)
{
this(notifTypes, name, description);
if (descriptor == null || !descriptor.isValid())
setDescriptor(createDefaultDescriptor());
else
setDescriptor(descriptor);
}
public ModelMBeanNotificationInfo(ModelMBeanNotificationInfo info)
{
this(info.getNotifTypes(), info.getName(), info.getDescription(), info.getDescriptor());
}
// Public --------------------------------------------------------
public Descriptor getDescriptor()
{
return (Descriptor)descriptor.clone();
}
public void setDescriptor(Descriptor inDescriptor)
{
if (inDescriptor == null)
inDescriptor = createDefaultDescriptor();
if (!inDescriptor.isValid())
// FIXME: give more detailed error
throw new IllegalArgumentException("Invalid descriptor.");
this.descriptor = inDescriptor;
}
// Cloneable implementation --------------------------------------
public Object clone() throws CloneNotSupportedException
{
ModelMBeanNotificationInfo clone = (ModelMBeanNotificationInfo)super.clone();
clone.descriptor = (Descriptor)this.descriptor.clone();
return clone;
}
// Object overrides ----------------------------------------------
public String toString()
{
// FIXME: human readable string
return super.toString();
}
// Private -------------------------------------------------------
private Descriptor createDefaultDescriptor()
{
DescriptorSupport descr = new DescriptorSupport();
descr.setField(ModelMBeanConstants.NAME, super.getName());
descr.setField(ModelMBeanConstants.DESCRIPTOR_TYPE, ModelMBeanConstants.NOTIFICATION_DESCRIPTOR);
return descr;
}
private void readObject(ObjectInputStream ois)
throws IOException, ClassNotFoundException
{
ObjectInputStream.GetField getField = ois.readFields();
switch (Serialization.version)
{
case Serialization.V1R0:
descriptor = (Descriptor) getField.get("ntfyDescriptor", null);
break;
default:
descriptor = (Descriptor) getField.get("notificationDescriptor", null);
}
if (descriptor == null)
throw new StreamCorruptedException("Null descriptor?");
}
private void writeObject(ObjectOutputStream oos)
throws IOException
{
ObjectOutputStream.PutField putField = oos.putFields();
switch (Serialization.version)
{
case Serialization.V1R0:
putField.put("ntfyDescriptor", descriptor);
break;
default:
putField.put("notificationDescriptor", descriptor);
}
oos.writeFields();
}
}