src/share/classes/javax/management/modelmbean/ModelMBeanNotificationInfo.java - toolchain/jdk/jdk9_jdk - Git at Google

 /*
  * Portions Copyright 2000-2006 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun in the LICENSE file that accompanied this code.
  *
  * This code 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 General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 /*
  * @author    IBM Corp.
  *
  * Copyright IBM Corp. 1999-2000.  All rights reserved.
  */

 package javax.management.modelmbean;

 import static com.sun.jmx.defaults.JmxProperties.MODELMBEAN_LOGGER;
 import com.sun.jmx.mbeanserver.GetPropertyAction;

 import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.io.ObjectStreamField;
 import java.security.AccessController;
 import java.util.logging.Level;

 import javax.management.Descriptor;
 import javax.management.DescriptorAccess;
 import javax.management.MBeanNotificationInfo;
 import javax.management.RuntimeOperationsException;

 /**
  * The ModelMBeanNotificationInfo object describes a notification emitted
  * by a ModelMBean.
  * It is a subclass of MBeanNotificationInfo with the addition of an
  * associated Descriptor and an implementation of the Descriptor interface.
  * <P>
  * The fields in the descriptor are defined, but not limited to,
  * the following:
  * <PRE>
  * name           : notification name
  * descriptorType : must be "notification"
  * severity       : 0-6 where 0: unknown; 1: non-recoverable;
  *                  2: critical, failure; 3: major, severe;
  *                  4: minor, marginal, error; 5: warning;
  *                  6: normal, cleared, informative
  * messageID      : unique key for message text (to allow translation,
  *                  analysis)
  * messageText    : text of notification
  * log            : T - log message F - do not log message
  * logfile        : string fully qualified file name appropriate for
  *                  operating system
  * visibility     : 1-4 where 1: always visible 4: rarely visible
  * presentationString : xml formatted string to allow presentation of data
  * </PRE>
  * The default descriptor contains the name, descriptorType,
  * displayName and severity(=6) fields.  The default value of the name
  * and displayName fields is the name of the Notification class (as
  * specified by the <code>name</code> parameter of the
  * ModelMBeanNotificationInfo constructor).
  *
  * <p>The <b>serialVersionUID</b> of this class is <code>-7445681389570207141L</code>.
  *
  * @since 1.5
  */

 // Sun Microsystems, Sept. 2002: Revisited for JMX 1.2 (DF)
 //
 @SuppressWarnings("serial")  // serialVersionUID is not constant
 public class ModelMBeanNotificationInfo
     extends MBeanNotificationInfo
     implements DescriptorAccess {

     // Serialization compatibility stuff:
     // Two serial forms are supported in this class. The selected form
     // depends on system property "jmx.serial.form":
     //  - "1.0" for JMX 1.0
     //  - any other value for JMX 1.1 and higher
     //
     // Serial version for old serial form
     private static final long oldSerialVersionUID = -5211564525059047097L;
     //
     // Serial version for new serial form
     private static final long newSerialVersionUID = -7445681389570207141L;
     //
     // Serializable fields in old serial form
     private static final ObjectStreamField[] oldSerialPersistentFields =
     {
       new ObjectStreamField("notificationDescriptor", Descriptor.class),
       new ObjectStreamField("currClass", String.class)
     };
     //
     // Serializable fields in new serial form
     private static final ObjectStreamField[] newSerialPersistentFields =
     {
       new ObjectStreamField("notificationDescriptor", Descriptor.class)
     };
     //
     // Actual serial version and serial form
     private static final long serialVersionUID;
     /**
      * @serialField notificationDescriptor Descriptor The descriptor
      *   containing the appropriate metadata for this instance
      */
     private static final ObjectStreamField[] serialPersistentFields;
     private static boolean compat = false;
     static {
         try {
             GetPropertyAction act = new GetPropertyAction("jmx.serial.form");
             String form = AccessController.doPrivileged(act);
             compat = (form != null && form.equals("1.0"));
         } catch (Exception e) {
             // OK: No compat with 1.0
         }
         if (compat) {
             serialPersistentFields = oldSerialPersistentFields;
             serialVersionUID = oldSerialVersionUID;
         } else {
             serialPersistentFields = newSerialPersistentFields;
             serialVersionUID = newSerialVersionUID;
         }
     }
     //
     // END Serialization compatibility stuff

     /**
      * @serial The descriptor containing the appropriate metadata for
      *         this instance
      */
     private Descriptor notificationDescriptor;

     private static final String currClass = "ModelMBeanNotificationInfo";

     /**
      * Constructs a ModelMBeanNotificationInfo object with a default
      * descriptor.
      *
      * @param notifTypes The array of strings (in dot notation) containing
      *     the notification types that may be emitted.
      * @param name The name of the Notification class.
      * @param description A human readable description of the
      *     Notification. Optional.
      **/
     public ModelMBeanNotificationInfo(String[] notifTypes,
                                       String name,
                                       String description) {
         this(notifTypes,name,description,null);
     }

     /**
      * Constructs a ModelMBeanNotificationInfo object.
      *
      * @param notifTypes The array of strings (in dot notation)
      *        containing the notification types that may be emitted.
      * @param name The name of the Notification class.
      * @param description A human readable description of the Notification.
      *        Optional.
      * @param descriptor An instance of Descriptor containing the
      *        appropriate metadata for this instance of the
      *        MBeanNotificationInfo. If it is null a default descriptor
      *        will be created. If the descriptor does not contain all the
      *        fields "name", "descriptorType", "displayName" and "severity",
      *        the missing ones are added with their default values.
      *
      * @exception RuntimeOperationsException Wraps an
      *    {@link IllegalArgumentException}. The descriptor is invalid, or
      *    descriptor field "name" is present but not equal to parameter name, or
      *    descriptor field "descriptorType" is present but not equal to "notification".
      *
      **/
     public ModelMBeanNotificationInfo(String[] notifTypes,
                                       String name,
                                       String description,
                                       Descriptor descriptor) {
         super(notifTypes, name, description);
         if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
             MODELMBEAN_LOGGER.logp(Level.FINER,
                     ModelMBeanNotificationInfo.class.getName(),
                     "ModelMBeanNotificationInfo", "Entry");
         }
         notificationDescriptor = validDescriptor(descriptor);
     }

     /**
      * Constructs a new ModelMBeanNotificationInfo object from this
      * ModelMBeanNotfication Object.
      *
      * @param inInfo the ModelMBeanNotificationInfo to be duplicated
      *
      **/
     public ModelMBeanNotificationInfo(ModelMBeanNotificationInfo inInfo) {
         this(inInfo.getNotifTypes(),
              inInfo.getName(),
              inInfo.getDescription(),inInfo.getDescriptor());
     }

     /**
      * Creates and returns a new ModelMBeanNotificationInfo which is a
      * duplicate of this ModelMBeanNotificationInfo.
      **/
     public Object clone () {
         if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
             MODELMBEAN_LOGGER.logp(Level.FINER,
                     ModelMBeanNotificationInfo.class.getName(),
                     "clone()", "Entry");
         }
         return(new ModelMBeanNotificationInfo(this));
     }

     /**
      * Returns a copy of the associated Descriptor for the
      * ModelMBeanNotificationInfo.
      *
      * @return Descriptor associated with the
      * ModelMBeanNotificationInfo object.
      *
      * @see #setDescriptor
      **/
     public Descriptor getDescriptor() {
         if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
             MODELMBEAN_LOGGER.logp(Level.FINER,
                     ModelMBeanNotificationInfo.class.getName(),
                     "getDescriptor()", "Entry");
         }

         if (notificationDescriptor == null) {
             // Dead code. Should never happen.
             if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
                 MODELMBEAN_LOGGER.logp(Level.FINER,
                         ModelMBeanNotificationInfo.class.getName(),
                         "getDescriptor()", "Descriptor value is null, " +
                         "setting descriptor to default values");
             }
             notificationDescriptor = validDescriptor(null);
         }

         return((Descriptor)notificationDescriptor.clone());
     }

     /**
      * Sets associated Descriptor (full replace) for the
      * ModelMBeanNotificationInfo If the new Descriptor is null,
      * then the associated Descriptor reverts to a default
      * descriptor.  The Descriptor is validated before it is
      * assigned.  If the new Descriptor is invalid, then a
      * RuntimeOperationsException wrapping an
      * IllegalArgumentException is thrown.
      *
      * @param inDescriptor replaces the Descriptor associated with the
      * ModelMBeanNotification interface
      *
      * @exception RuntimeOperationsException Wraps an
      * {@link IllegalArgumentException} for invalid Descriptor.
      *
      * @see #getDescriptor
      **/
     public void setDescriptor(Descriptor inDescriptor) {
         if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
             MODELMBEAN_LOGGER.logp(Level.FINER,
                     ModelMBeanNotificationInfo.class.getName(),
                     "setDescriptor(Descriptor)", "Entry");
         }
         notificationDescriptor = validDescriptor(inDescriptor);
     }

     /**
      * Returns a human readable string containing
      * ModelMBeanNotificationInfo.
      *
      * @return a string describing this object.
      **/
     public String toString() {
         if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
             MODELMBEAN_LOGGER.logp(Level.FINER,
                     ModelMBeanNotificationInfo.class.getName(),
                     "toString()", "Entry");
         }

         final StringBuilder retStr = new StringBuilder();

         retStr.append("ModelMBeanNotificationInfo: ")
             .append(this.getName());

         retStr.append(" ; Description: ")
             .append(this.getDescription());

         retStr.append(" ; Descriptor: ")
             .append(this.getDescriptor());

         retStr.append(" ; Types: ");
         String[] nTypes = this.getNotifTypes();
         for (int i=0; i < nTypes.length; i++) {
             if (i > 0) retStr.append(", ");
             retStr.append(nTypes[i]);
         }
         return retStr.toString();
     }


     /**
      * Clones the passed in Descriptor, sets default values, and checks for validity.
      * If the Descriptor is invalid (for instance by having the wrong "name"),
      * this indicates programming error and a RuntimeOperationsException will be thrown.
      *
      * The following fields will be defaulted if they are not already set:
      * descriptorType="notification",displayName=this.getName(),
      * name=this.getName(),severity="6"
      *
      *
      * @param in Descriptor to be checked, or null which is equivalent to an
      * empty Descriptor.
      * @exception RuntimeOperationsException if Descriptor is invalid
      */
     private Descriptor validDescriptor(final Descriptor in) throws RuntimeOperationsException {
         Descriptor clone;
         if (in == null) {
             clone = new DescriptorSupport();
             MODELMBEAN_LOGGER.finer("Null Descriptor, creating new.");
         } else {
             clone = (Descriptor) in.clone();
         }

         //Setting defaults.
         if (clone.getFieldValue("name")==null) {
             clone.setField("name", this.getName());
             MODELMBEAN_LOGGER.finer("Defaulting Descriptor name to " + this.getName());
         }
         if (clone.getFieldValue("descriptorType")==null) {
             clone.setField("descriptorType", "notification");
             MODELMBEAN_LOGGER.finer("Defaulting descriptorType to \"notification\"");
         }
         if (clone.getFieldValue("displayName") == null) {
             clone.setField("displayName",this.getName());
             MODELMBEAN_LOGGER.finer("Defaulting Descriptor displayName to " + this.getName());
         }
         if (clone.getFieldValue("severity") == null) {
             clone.setField("severity", "6");
             MODELMBEAN_LOGGER.finer("Defaulting Descriptor severity field to 6");
         }

         //Checking validity
         if (!clone.isValid()) {
              throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"),
                 "The isValid() method of the Descriptor object itself returned false,"+
                 "one or more required fields are invalid. Descriptor:" + clone.toString());
         }
         if (! ((String)clone.getFieldValue("name")).equalsIgnoreCase(this.getName())) {
                 throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"),
                 "The Descriptor \"name\" field does not match the object described. " +
                  " Expected: "+ this.getName() + " , was: " + clone.getFieldValue("name"));
         }
         if (! ((String)clone.getFieldValue("descriptorType")).equalsIgnoreCase("notification")) {
                  throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"),
                 "The Descriptor \"descriptorType\" field does not match the object described. " +
                  " Expected: \"notification\" ," + " was: " + clone.getFieldValue("descriptorType"));
         }

         return clone;
     }


     /**
      * Deserializes a {@link ModelMBeanNotificationInfo} from an
      * {@link ObjectInputStream}.
      **/
     private void readObject(ObjectInputStream in)
         throws IOException, ClassNotFoundException {
         // New serial form ignores extra field "currClass"
         in.defaultReadObject();
     }


     /**
      * Serializes a {@link ModelMBeanNotificationInfo} to an
      * {@link ObjectOutputStream}.
      **/
     private void writeObject(ObjectOutputStream out)
         throws IOException {
         if (compat) {
             // Serializes this instance in the old serial form
             //
             ObjectOutputStream.PutField fields = out.putFields();
             fields.put("notificationDescriptor", notificationDescriptor);
             fields.put("currClass", currClass);
             out.writeFields();
         } else {
             // Serializes this instance in the new serial form
             //
             out.defaultWriteObject();
         }
     }

 }
	/*
	* Portions Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Sun designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Sun in the LICENSE file that accompanied this code.
	*
	* This code 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 General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
	* CA 95054 USA or visit www.sun.com if you need additional information or
	* have any questions.
	*/
	/*
	* @author IBM Corp.
	*
	* Copyright IBM Corp. 1999-2000. All rights reserved.
	*/

	package javax.management.modelmbean;

	import static com.sun.jmx.defaults.JmxProperties.MODELMBEAN_LOGGER;
	import com.sun.jmx.mbeanserver.GetPropertyAction;

	import java.io.IOException;
	import java.io.ObjectInputStream;
	import java.io.ObjectOutputStream;
	import java.io.ObjectStreamField;
	import java.security.AccessController;
	import java.util.logging.Level;

	import javax.management.Descriptor;
	import javax.management.DescriptorAccess;
	import javax.management.MBeanNotificationInfo;
	import javax.management.RuntimeOperationsException;

	/**
	* The ModelMBeanNotificationInfo object describes a notification emitted
	* by a ModelMBean.
	* It is a subclass of MBeanNotificationInfo with the addition of an
	* associated Descriptor and an implementation of the Descriptor interface.
	* <P>
	* The fields in the descriptor are defined, but not limited to,
	* the following:
	* <PRE>
	* name : notification name
	* descriptorType : must be "notification"
	* severity : 0-6 where 0: unknown; 1: non-recoverable;
	* 2: critical, failure; 3: major, severe;
	* 4: minor, marginal, error; 5: warning;
	* 6: normal, cleared, informative
	* messageID : unique key for message text (to allow translation,
	* analysis)
	* messageText : text of notification
	* log : T - log message F - do not log message
	* logfile : string fully qualified file name appropriate for
	* operating system
	* visibility : 1-4 where 1: always visible 4: rarely visible
	* presentationString : xml formatted string to allow presentation of data
	* </PRE>
	* The default descriptor contains the name, descriptorType,
	* displayName and severity(=6) fields. The default value of the name
	* and displayName fields is the name of the Notification class (as
	* specified by the <code>name</code> parameter of the
	* ModelMBeanNotificationInfo constructor).
	*
	* <p>The <b>serialVersionUID</b> of this class is <code>-7445681389570207141L</code>.
	*
	* @since 1.5
	*/

	// Sun Microsystems, Sept. 2002: Revisited for JMX 1.2 (DF)
	//
	@SuppressWarnings("serial") // serialVersionUID is not constant
	public class ModelMBeanNotificationInfo
	extends MBeanNotificationInfo
	implements DescriptorAccess {

	// Serialization compatibility stuff:
	// Two serial forms are supported in this class. The selected form
	// depends on system property "jmx.serial.form":
	// - "1.0" for JMX 1.0
	// - any other value for JMX 1.1 and higher
	//
	// Serial version for old serial form
	private static final long oldSerialVersionUID = -5211564525059047097L;
	//
	// Serial version for new serial form
	private static final long newSerialVersionUID = -7445681389570207141L;
	//
	// Serializable fields in old serial form
	private static final ObjectStreamField[] oldSerialPersistentFields =
	{
	new ObjectStreamField("notificationDescriptor", Descriptor.class),
	new ObjectStreamField("currClass", String.class)
	};
	//
	// Serializable fields in new serial form
	private static final ObjectStreamField[] newSerialPersistentFields =
	{
	new ObjectStreamField("notificationDescriptor", Descriptor.class)
	};
	//
	// Actual serial version and serial form
	private static final long serialVersionUID;
	/**
	* @serialField notificationDescriptor Descriptor The descriptor
	* containing the appropriate metadata for this instance
	*/
	private static final ObjectStreamField[] serialPersistentFields;
	private static boolean compat = false;
	static {
	try {
	GetPropertyAction act = new GetPropertyAction("jmx.serial.form");
	String form = AccessController.doPrivileged(act);
	compat = (form != null && form.equals("1.0"));
	} catch (Exception e) {
	// OK: No compat with 1.0
	}
	if (compat) {
	serialPersistentFields = oldSerialPersistentFields;
	serialVersionUID = oldSerialVersionUID;
	} else {
	serialPersistentFields = newSerialPersistentFields;
	serialVersionUID = newSerialVersionUID;
	}
	}
	//
	// END Serialization compatibility stuff

	/**
	* @serial The descriptor containing the appropriate metadata for
	* this instance
	*/
	private Descriptor notificationDescriptor;

	private static final String currClass = "ModelMBeanNotificationInfo";

	/**
	* Constructs a ModelMBeanNotificationInfo object with a default
	* descriptor.
	*
	* @param notifTypes The array of strings (in dot notation) containing
	* the notification types that may be emitted.
	* @param name The name of the Notification class.
	* @param description A human readable description of the
	* Notification. Optional.
	**/
	public ModelMBeanNotificationInfo(String[] notifTypes,
	String name,
	String description) {
	this(notifTypes,name,description,null);
	}

	/**
	* Constructs a ModelMBeanNotificationInfo object.
	*
	* @param notifTypes The array of strings (in dot notation)
	* containing the notification types that may be emitted.
	* @param name The name of the Notification class.
	* @param description A human readable description of the Notification.
	* Optional.
	* @param descriptor An instance of Descriptor containing the
	* appropriate metadata for this instance of the
	* MBeanNotificationInfo. If it is null a default descriptor
	* will be created. If the descriptor does not contain all the
	* fields "name", "descriptorType", "displayName" and "severity",
	* the missing ones are added with their default values.
	*
	* @exception RuntimeOperationsException Wraps an
	* {@link IllegalArgumentException}. The descriptor is invalid, or
	* descriptor field "name" is present but not equal to parameter name, or
	* descriptor field "descriptorType" is present but not equal to "notification".
	*
	**/
	public ModelMBeanNotificationInfo(String[] notifTypes,
	String name,
	String description,
	Descriptor descriptor) {
	super(notifTypes, name, description);
	if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
	MODELMBEAN_LOGGER.logp(Level.FINER,
	ModelMBeanNotificationInfo.class.getName(),
	"ModelMBeanNotificationInfo", "Entry");
	}
	notificationDescriptor = validDescriptor(descriptor);
	}

	/**
	* Constructs a new ModelMBeanNotificationInfo object from this
	* ModelMBeanNotfication Object.
	*
	* @param inInfo the ModelMBeanNotificationInfo to be duplicated
	*
	**/
	public ModelMBeanNotificationInfo(ModelMBeanNotificationInfo inInfo) {
	this(inInfo.getNotifTypes(),
	inInfo.getName(),
	inInfo.getDescription(),inInfo.getDescriptor());
	}

	/**
	* Creates and returns a new ModelMBeanNotificationInfo which is a
	* duplicate of this ModelMBeanNotificationInfo.
	**/
	public Object clone () {
	if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
	MODELMBEAN_LOGGER.logp(Level.FINER,
	ModelMBeanNotificationInfo.class.getName(),
	"clone()", "Entry");
	}
	return(new ModelMBeanNotificationInfo(this));
	}

	/**
	* Returns a copy of the associated Descriptor for the
	* ModelMBeanNotificationInfo.
	*
	* @return Descriptor associated with the
	* ModelMBeanNotificationInfo object.
	*
	* @see #setDescriptor
	**/
	public Descriptor getDescriptor() {
	if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
	MODELMBEAN_LOGGER.logp(Level.FINER,
	ModelMBeanNotificationInfo.class.getName(),
	"getDescriptor()", "Entry");
	}

	if (notificationDescriptor == null) {
	// Dead code. Should never happen.
	if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
	MODELMBEAN_LOGGER.logp(Level.FINER,
	ModelMBeanNotificationInfo.class.getName(),
	"getDescriptor()", "Descriptor value is null, " +
	"setting descriptor to default values");
	}
	notificationDescriptor = validDescriptor(null);
	}

	return((Descriptor)notificationDescriptor.clone());
	}

	/**
	* Sets associated Descriptor (full replace) for the
	* ModelMBeanNotificationInfo If the new Descriptor is null,
	* then the associated Descriptor reverts to a default
	* descriptor. The Descriptor is validated before it is
	* assigned. If the new Descriptor is invalid, then a
	* RuntimeOperationsException wrapping an
	* IllegalArgumentException is thrown.
	*
	* @param inDescriptor replaces the Descriptor associated with the
	* ModelMBeanNotification interface
	*
	* @exception RuntimeOperationsException Wraps an
	* {@link IllegalArgumentException} for invalid Descriptor.
	*
	* @see #getDescriptor
	**/
	public void setDescriptor(Descriptor inDescriptor) {
	if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
	MODELMBEAN_LOGGER.logp(Level.FINER,
	ModelMBeanNotificationInfo.class.getName(),
	"setDescriptor(Descriptor)", "Entry");
	}
	notificationDescriptor = validDescriptor(inDescriptor);
	}

	/**
	* Returns a human readable string containing
	* ModelMBeanNotificationInfo.
	*
	* @return a string describing this object.
	**/
	public String toString() {
	if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
	MODELMBEAN_LOGGER.logp(Level.FINER,
	ModelMBeanNotificationInfo.class.getName(),
	"toString()", "Entry");
	}

	final StringBuilder retStr = new StringBuilder();

	retStr.append("ModelMBeanNotificationInfo: ")
	.append(this.getName());

	retStr.append(" ; Description: ")
	.append(this.getDescription());

	retStr.append(" ; Descriptor: ")
	.append(this.getDescriptor());

	retStr.append(" ; Types: ");
	String[] nTypes = this.getNotifTypes();
	for (int i=0; i < nTypes.length; i++) {
	if (i > 0) retStr.append(", ");
	retStr.append(nTypes[i]);
	}
	return retStr.toString();
	}


	/**
	* Clones the passed in Descriptor, sets default values, and checks for validity.
	* If the Descriptor is invalid (for instance by having the wrong "name"),
	* this indicates programming error and a RuntimeOperationsException will be thrown.
	*
	* The following fields will be defaulted if they are not already set:
	* descriptorType="notification",displayName=this.getName(),
	* name=this.getName(),severity="6"
	*
	*
	* @param in Descriptor to be checked, or null which is equivalent to an
	* empty Descriptor.
	* @exception RuntimeOperationsException if Descriptor is invalid
	*/
	private Descriptor validDescriptor(final Descriptor in) throws RuntimeOperationsException {
	Descriptor clone;
	if (in == null) {
	clone = new DescriptorSupport();
	MODELMBEAN_LOGGER.finer("Null Descriptor, creating new.");
	} else {
	clone = (Descriptor) in.clone();
	}

	//Setting defaults.
	if (clone.getFieldValue("name")==null) {
	clone.setField("name", this.getName());
	MODELMBEAN_LOGGER.finer("Defaulting Descriptor name to " + this.getName());
	}
	if (clone.getFieldValue("descriptorType")==null) {
	clone.setField("descriptorType", "notification");
	MODELMBEAN_LOGGER.finer("Defaulting descriptorType to \"notification\"");
	}
	if (clone.getFieldValue("displayName") == null) {
	clone.setField("displayName",this.getName());
	MODELMBEAN_LOGGER.finer("Defaulting Descriptor displayName to " + this.getName());
	}
	if (clone.getFieldValue("severity") == null) {
	clone.setField("severity", "6");
	MODELMBEAN_LOGGER.finer("Defaulting Descriptor severity field to 6");
	}

	//Checking validity
	if (!clone.isValid()) {
	throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"),
	"The isValid() method of the Descriptor object itself returned false,"+
	"one or more required fields are invalid. Descriptor:" + clone.toString());
	}
	if (! ((String)clone.getFieldValue("name")).equalsIgnoreCase(this.getName())) {
	throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"),
	"The Descriptor \"name\" field does not match the object described. " +
	" Expected: "+ this.getName() + " , was: " + clone.getFieldValue("name"));
	}
	if (! ((String)clone.getFieldValue("descriptorType")).equalsIgnoreCase("notification")) {
	throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"),
	"The Descriptor \"descriptorType\" field does not match the object described. " +
	" Expected: \"notification\" ," + " was: " + clone.getFieldValue("descriptorType"));
	}

	return clone;
	}


	/**
	* Deserializes a {@link ModelMBeanNotificationInfo} from an
	* {@link ObjectInputStream}.
	**/
	private void readObject(ObjectInputStream in)
	throws IOException, ClassNotFoundException {
	// New serial form ignores extra field "currClass"
	in.defaultReadObject();
	}


	/**
	* Serializes a {@link ModelMBeanNotificationInfo} to an
	* {@link ObjectOutputStream}.
	**/
	private void writeObject(ObjectOutputStream out)
	throws IOException {
	if (compat) {
	// Serializes this instance in the old serial form
	//
	ObjectOutputStream.PutField fields = out.putFields();
	fields.put("notificationDescriptor", notificationDescriptor);
	fields.put("currClass", currClass);
	out.writeFields();
	} else {
	// Serializes this instance in the new serial form
	//
	out.defaultWriteObject();
	}
	}

	}