author | xdono |
Wed, 02 Jul 2008 12:55:45 -0700 | |
changeset 715 | f16baef3a20e |
parent 526 | 61ba2d5ea9da |
child 1510 | e747d3193ef2 |
permissions | -rw-r--r-- |
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/* |
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* Portions Copyright 2000-2008 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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/* |
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* @author IBM Corp. |
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* |
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* Copyright IBM Corp. 1999-2000. All rights reserved. |
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*/ |
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package javax.management.modelmbean; |
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import static com.sun.jmx.defaults.JmxProperties.MODELMBEAN_LOGGER; |
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import com.sun.jmx.mbeanserver.GetPropertyAction; |
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import java.io.IOException; |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
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import java.io.ObjectStreamField; |
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import java.lang.reflect.Constructor; |
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import java.security.AccessController; |
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import java.util.logging.Level; |
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import javax.management.Descriptor; |
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import javax.management.DescriptorAccess; |
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import javax.management.DescriptorKey; |
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import javax.management.MBeanConstructorInfo; |
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import javax.management.MBeanParameterInfo; |
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import javax.management.RuntimeOperationsException; |
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/** |
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* The ModelMBeanConstructorInfo object describes a constructor of the ModelMBean. |
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* It is a subclass of MBeanConstructorInfo with the addition of an associated Descriptor |
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* and an implementation of the DescriptorAccess interface. |
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* <P> |
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* <PRE> |
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* The fields in the descriptor are defined, but not limited to, the following: <P> |
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* name : constructor name |
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* descriptorType : must be "operation" |
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* role : must be "constructor" |
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* displayName : human readable name of constructor |
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* visibility : 1-4 where 1: always visible 4: rarely visible |
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* presentationString : xml formatted string to describe how to present operation |
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*</PRE> |
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* |
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* <p>The {@code persistPolicy} and {@code currencyTimeLimit} fields |
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* are meaningless for constructors, but are not considered invalid. |
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* |
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* <p>The default descriptor will have the {@code name}, {@code |
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* descriptorType}, {@code displayName} and {@code role} fields. The |
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* default value of the {@code name} and {@code displayName} fields is |
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* the name of the constructor. |
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* |
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* <p>The <b>serialVersionUID</b> of this class is <code>3862947819818064362L</code>. |
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* |
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* @since 1.5 |
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*/ |
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@SuppressWarnings("serial") // serialVersionUID is not constant |
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public class ModelMBeanConstructorInfo |
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extends MBeanConstructorInfo |
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implements DescriptorAccess { |
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// Serialization compatibility stuff: |
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// Two serial forms are supported in this class. The selected form depends |
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// on system property "jmx.serial.form": |
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// - "1.0" for JMX 1.0 |
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// - any other value for JMX 1.1 and higher |
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// |
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// Serial version for old serial form |
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private static final long oldSerialVersionUID = -4440125391095574518L; |
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// |
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// Serial version for new serial form |
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private static final long newSerialVersionUID = 3862947819818064362L; |
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// |
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// Serializable fields in old serial form |
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private static final ObjectStreamField[] oldSerialPersistentFields = |
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{ |
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new ObjectStreamField("consDescriptor", Descriptor.class), |
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new ObjectStreamField("currClass", String.class) |
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}; |
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// |
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// Serializable fields in new serial form |
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private static final ObjectStreamField[] newSerialPersistentFields = |
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{ |
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new ObjectStreamField("consDescriptor", Descriptor.class) |
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}; |
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// |
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// Actual serial version and serial form |
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private static final long serialVersionUID; |
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/** |
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* @serialField consDescriptor Descriptor The {@link Descriptor} containing the metadata for this instance |
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*/ |
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private static final ObjectStreamField[] serialPersistentFields; |
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private static boolean compat = false; |
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static { |
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try { |
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GetPropertyAction act = new GetPropertyAction("jmx.serial.form"); |
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String form = AccessController.doPrivileged(act); |
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compat = (form != null && form.equals("1.0")); |
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} catch (Exception e) { |
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// OK: No compat with 1.0 |
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} |
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if (compat) { |
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serialPersistentFields = oldSerialPersistentFields; |
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serialVersionUID = oldSerialVersionUID; |
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} else { |
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serialPersistentFields = newSerialPersistentFields; |
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serialVersionUID = newSerialVersionUID; |
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} |
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} |
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// |
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// END Serialization compatibility stuff |
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/** |
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* @serial The {@link Descriptor} containing the metadata for this instance |
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*/ |
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private Descriptor consDescriptor = validDescriptor(null); |
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private final static String currClass = "ModelMBeanConstructorInfo"; |
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/** |
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* Constructs a ModelMBeanConstructorInfo object with a default |
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* descriptor. The {@link Descriptor} of the constructed |
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* object will include fields contributed by any annotations on |
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* the {@code Constructor} object that contain the {@link |
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* DescriptorKey} meta-annotation. |
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* |
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* @param description A human readable description of the constructor. |
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* @param constructorMethod The java.lang.reflect.Constructor object |
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* describing the MBean constructor. |
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*/ |
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public ModelMBeanConstructorInfo(String description, |
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Constructor constructorMethod) |
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{ |
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super(description, constructorMethod); |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"ModelMBeanConstructorInfo(String,Constructor)", |
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"Entry"); |
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} |
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consDescriptor = validDescriptor(null); |
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// put getter and setter methods in constructors list |
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// create default descriptor |
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} |
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/** |
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* Constructs a ModelMBeanConstructorInfo object. The {@link |
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* Descriptor} of the constructed object will include fields |
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* contributed by any annotations on the {@code Constructor} |
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* object that contain the {@link DescriptorKey} |
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* meta-annotation. |
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* |
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* @param description A human readable description of the constructor. |
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* @param constructorMethod The java.lang.reflect.Constructor object |
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* describing the ModelMBean constructor. |
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* @param descriptor An instance of Descriptor containing the |
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* appropriate metadata for this instance of the |
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* ModelMBeanConstructorInfo. If it is null, then a default |
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* descriptor will be created. If the descriptor does not |
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* contain all the following fields, the missing ones are added with |
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* their default values: displayName, name, role, descriptorType. |
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* |
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* @exception RuntimeOperationsException Wraps an |
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* IllegalArgumentException. The descriptor is invalid, or |
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* descriptor field "name" is present but not equal to name |
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* parameter, or descriptor field "descriptorType" is present |
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* but not equal to "operation" or descriptor field "role" is |
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* present but not equal to "constructor". |
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*/ |
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public ModelMBeanConstructorInfo(String description, |
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Constructor constructorMethod, |
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Descriptor descriptor) |
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{ |
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super(description, constructorMethod); |
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// put getter and setter methods in constructors list |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"ModelMBeanConstructorInfo(" + |
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"String,Constructor,Descriptor)", "Entry"); |
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} |
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consDescriptor = validDescriptor(descriptor); |
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} |
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/** |
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* Constructs a ModelMBeanConstructorInfo object with a default descriptor. |
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* |
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* @param name The name of the constructor. |
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* @param description A human readable description of the constructor. |
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* @param signature MBeanParameterInfo object array describing the parameters(arguments) of the constructor. |
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*/ |
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public ModelMBeanConstructorInfo(String name, |
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String description, |
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MBeanParameterInfo[] signature) |
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{ |
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super(name, description, signature); |
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// create default descriptor |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"ModelMBeanConstructorInfo(" + |
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"String,String,MBeanParameterInfo[])", "Entry"); |
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} |
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consDescriptor = validDescriptor(null); |
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} |
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/** |
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* Constructs a ModelMBeanConstructorInfo object. |
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* |
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* @param name The name of the constructor. |
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* @param description A human readable description of the constructor. |
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* @param signature MBeanParameterInfo objects describing the parameters(arguments) of the constructor. |
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* @param descriptor An instance of Descriptor containing the appropriate metadata |
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* for this instance of the MBeanConstructorInfo. If it is null then a default descriptor will be created. |
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* If the descriptor does not |
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* contain all the following fields, the missing ones are added with |
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* their default values: displayName, name, role, descriptorType. |
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* |
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* @exception RuntimeOperationsException Wraps an |
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* IllegalArgumentException. The descriptor is invalid, or |
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* descriptor field "name" is present but not equal to name |
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* parameter, or descriptor field "descriptorType" is present |
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* but not equal to "operation" or descriptor field "role" is |
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* present but not equal to "constructor". |
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*/ |
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public ModelMBeanConstructorInfo(String name, |
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String description, |
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MBeanParameterInfo[] signature, |
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Descriptor descriptor) |
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{ |
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super(name, description, signature); |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"ModelMBeanConstructorInfo(" + |
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"String,String,MBeanParameterInfo[],Descriptor)", |
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"Entry"); |
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} |
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consDescriptor = validDescriptor(descriptor); |
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} |
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/** |
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* Constructs a new ModelMBeanConstructorInfo object from this ModelMBeanConstructor Object. |
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* |
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* @param old the ModelMBeanConstructorInfo to be duplicated |
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* |
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*/ |
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ModelMBeanConstructorInfo(ModelMBeanConstructorInfo old) |
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{ |
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super(old.getName(), old.getDescription(), old.getSignature()); |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"ModelMBeanConstructorInfo(" + |
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"ModelMBeanConstructorInfo)", "Entry"); |
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} |
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consDescriptor = validDescriptor(consDescriptor); |
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} |
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/** |
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* Creates and returns a new ModelMBeanConstructorInfo which is a duplicate of this ModelMBeanConstructorInfo. |
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* |
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*/ |
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public Object clone () |
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{ |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"clone()", "Entry"); |
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} |
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return(new ModelMBeanConstructorInfo(this)) ; |
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} |
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/** |
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* Returns a copy of the associated Descriptor. |
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* |
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* @return Descriptor associated with the |
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* ModelMBeanConstructorInfo object. |
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* |
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* @see #setDescriptor |
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*/ |
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public Descriptor getDescriptor() |
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{ |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"getDescriptor()", "Entry"); |
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} |
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if (consDescriptor == null){ |
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consDescriptor = validDescriptor(null); |
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} |
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return((Descriptor)consDescriptor.clone()); |
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} |
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/** |
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* Sets associated Descriptor (full replace) of |
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* ModelMBeanConstructorInfo. If the new Descriptor is null, |
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* then the associated Descriptor reverts to a default |
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* descriptor. The Descriptor is validated before it is |
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* assigned. If the new Descriptor is invalid, then a |
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* RuntimeOperationsException wrapping an |
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* IllegalArgumentException is thrown. |
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* |
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* @param inDescriptor replaces the Descriptor associated with |
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* the ModelMBeanConstructor. If the descriptor does not |
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* contain all the following fields, the missing ones are added with |
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* their default values: displayName, name, role, descriptorType. |
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* |
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* @exception RuntimeOperationsException Wraps an |
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* IllegalArgumentException. The descriptor is invalid, or |
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* descriptor field "name" is present but not equal to name |
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* parameter, or descriptor field "descriptorType" is present |
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* but not equal to "operation" or descriptor field "role" is |
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* present but not equal to "constructor". |
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* |
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* @see #getDescriptor |
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*/ |
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public void setDescriptor(Descriptor inDescriptor) |
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{ |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"setDescriptor()", "Entry"); |
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} |
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consDescriptor = validDescriptor(inDescriptor); |
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} |
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/** |
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* Returns a string containing the entire contents of the ModelMBeanConstructorInfo in human readable form. |
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*/ |
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public String toString() |
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{ |
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if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) { |
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MODELMBEAN_LOGGER.logp(Level.FINER, |
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ModelMBeanConstructorInfo.class.getName(), |
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"toString()", "Entry"); |
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} |
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String retStr = |
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"ModelMBeanConstructorInfo: " + this.getName() + |
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" ; Description: " + this.getDescription() + |
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" ; Descriptor: " + this.getDescriptor() + |
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" ; Signature: "; |
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MBeanParameterInfo[] pTypes = this.getSignature(); |
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373 |
for (int i=0; i < pTypes.length; i++) |
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{ |
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375 |
retStr = retStr.concat((pTypes[i]).getType() + ", "); |
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376 |
} |
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377 |
return retStr; |
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} |
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379 |
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380 |
||
381 |
/** |
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382 |
* Clones the passed in Descriptor, sets default values, and checks for validity. |
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383 |
* If the Descriptor is invalid (for instance by having the wrong "name"), |
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384 |
* this indicates programming error and a RuntimeOperationsException will be thrown. |
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385 |
* |
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* The following fields will be defaulted if they are not already set: |
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387 |
* displayName=this.getName(), name=this.getName(), descriptorType="operation", |
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* role="constructor" |
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* |
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390 |
* |
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* @param in Descriptor to be checked, or null which is equivalent to |
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392 |
* an empty Descriptor. |
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* @exception RuntimeOperationsException if Descriptor is invalid |
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394 |
*/ |
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395 |
private Descriptor validDescriptor(final Descriptor in) throws RuntimeOperationsException { |
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526
61ba2d5ea9da
6701459: Synchronization bug pattern found in javax.management.relation.RelationService
emcmanus
parents:
2
diff
changeset
|
396 |
Descriptor clone; |
2 | 397 |
if (in == null) { |
398 |
clone = new DescriptorSupport(); |
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399 |
MODELMBEAN_LOGGER.finer("Null Descriptor, creating new."); |
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400 |
} else { |
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401 |
clone = (Descriptor) in.clone(); |
|
402 |
} |
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403 |
||
404 |
//Setting defaults. |
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405 |
if (clone.getFieldValue("name")==null) { |
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406 |
clone.setField("name", this.getName()); |
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MODELMBEAN_LOGGER.finer("Defaulting Descriptor name to " + this.getName()); |
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} |
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409 |
if (clone.getFieldValue("descriptorType")==null) { |
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410 |
clone.setField("descriptorType", "operation"); |
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411 |
MODELMBEAN_LOGGER.finer("Defaulting descriptorType to \"operation\""); |
|
412 |
} |
|
413 |
if (clone.getFieldValue("displayName") == null) { |
|
414 |
clone.setField("displayName",this.getName()); |
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415 |
MODELMBEAN_LOGGER.finer("Defaulting Descriptor displayName to " + this.getName()); |
|
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} |
|
417 |
if (clone.getFieldValue("role") == null) { |
|
418 |
clone.setField("role","constructor"); |
|
419 |
MODELMBEAN_LOGGER.finer("Defaulting Descriptor role field to \"constructor\""); |
|
420 |
} |
|
421 |
||
422 |
//Checking validity |
|
423 |
if (!clone.isValid()) { |
|
424 |
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"), |
|
425 |
"The isValid() method of the Descriptor object itself returned false,"+ |
|
426 |
"one or more required fields are invalid. Descriptor:" + clone.toString()); |
|
427 |
} |
|
428 |
if (! ((String)clone.getFieldValue("name")).equalsIgnoreCase(this.getName())) { |
|
429 |
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"), |
|
430 |
"The Descriptor \"name\" field does not match the object described. " + |
|
431 |
" Expected: "+ this.getName() + " , was: " + clone.getFieldValue("name")); |
|
432 |
} |
|
433 |
if (! ((String)clone.getFieldValue("descriptorType")).equalsIgnoreCase("operation")) { |
|
434 |
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"), |
|
435 |
"The Descriptor \"descriptorType\" field does not match the object described. " + |
|
436 |
" Expected: \"operation\" ," + " was: " + clone.getFieldValue("descriptorType")); |
|
437 |
} |
|
438 |
if (! ((String)clone.getFieldValue("role")).equalsIgnoreCase("constructor")) { |
|
439 |
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid Descriptor argument"), |
|
440 |
"The Descriptor \"role\" field does not match the object described. " + |
|
441 |
" Expected: \"constructor\" ," + " was: " + clone.getFieldValue("role")); |
|
442 |
} |
|
443 |
||
444 |
return clone; |
|
445 |
} |
|
446 |
||
447 |
/** |
|
448 |
* Deserializes a {@link ModelMBeanConstructorInfo} from an {@link ObjectInputStream}. |
|
449 |
*/ |
|
450 |
private void readObject(ObjectInputStream in) |
|
451 |
throws IOException, ClassNotFoundException { |
|
452 |
// New serial form ignores extra field "currClass" |
|
453 |
in.defaultReadObject(); |
|
454 |
} |
|
455 |
||
456 |
||
457 |
/** |
|
458 |
* Serializes a {@link ModelMBeanConstructorInfo} to an {@link ObjectOutputStream}. |
|
459 |
*/ |
|
460 |
private void writeObject(ObjectOutputStream out) |
|
461 |
throws IOException { |
|
462 |
if (compat) |
|
463 |
{ |
|
464 |
// Serializes this instance in the old serial form |
|
465 |
// |
|
466 |
ObjectOutputStream.PutField fields = out.putFields(); |
|
467 |
fields.put("consDescriptor", consDescriptor); |
|
468 |
fields.put("currClass", currClass); |
|
469 |
out.writeFields(); |
|
470 |
} |
|
471 |
else |
|
472 |
{ |
|
473 |
// Serializes this instance in the new serial form |
|
474 |
// |
|
475 |
out.defaultWriteObject(); |
|
476 |
} |
|
477 |
} |
|
478 |
||
479 |
} |