| /* OpenMBeanInfoSupport.java -- Open typed info about a bean. |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package javax.management.openmbean; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| |
| import javax.management.MBeanInfo; |
| import javax.management.MBeanAttributeInfo; |
| import javax.management.MBeanConstructorInfo; |
| import javax.management.MBeanNotificationInfo; |
| import javax.management.MBeanOperationInfo; |
| |
| /** |
| * Describes an open management bean. |
| * |
| * @author Andrew John Hughes (gnu_andrew@member.fsf.org) |
| * @since 1.5 |
| */ |
| public class OpenMBeanInfoSupport |
| extends MBeanInfo |
| implements OpenMBeanInfo |
| { |
| |
| /** |
| * Compatible with JDK 1.5 |
| */ |
| private static final long serialVersionUID = 4349395935420511492L; |
| |
| /** |
| * The hash code of this instance. |
| */ |
| private transient Integer hashCode; |
| |
| /** |
| * The <code>toString()</code> result of this instance. |
| */ |
| private transient String string; |
| |
| /** |
| * Constructs a new {@link OpenMBeanInfo} using the supplied |
| * class name and description with the given attributes, |
| * operations, constructors and notifications. The class |
| * name does not have to actually specify a valid class that |
| * can be loaded by the MBean server or class loader; it merely |
| * has to be a syntactically correct class name. Any of the |
| * arrays may be <code>null</code>; this will be treated as if |
| * an empty array was supplied. A copy of the arrays is |
| * taken, so later changes have no effect. |
| * |
| * @param name the name of the class this instance describes. |
| * @param desc a description of the bean. |
| * @param attribs the attribute descriptions for the bean, |
| * or <code>null</code>. |
| * @param cons the constructor descriptions for the bean, |
| * or <code>null</code>. |
| * @param ops the operation descriptions for the bean, |
| * or <code>null</code>. |
| * @param notifs the notification descriptions for the bean, |
| * or <code>null</code>. |
| * @throws ArrayStoreException if a members of an array |
| * is not assignable to the equivalent |
| * <code>MBeanXXXInfo</code> class. |
| */ |
| public OpenMBeanInfoSupport(String name, String desc, |
| OpenMBeanAttributeInfo[] attribs, |
| OpenMBeanConstructorInfo[] cons, |
| OpenMBeanOperationInfo[] ops, |
| MBeanNotificationInfo[] notifs) |
| { |
| super(name, desc, (MBeanAttributeInfo[]) attribs, |
| (MBeanConstructorInfo[]) cons, |
| (MBeanOperationInfo[]) ops, |
| notifs); |
| } |
| |
| /** |
| * Compares this attribute with the supplied object. This returns |
| * true iff the object is an instance of {@link OpenMBeanInfo} |
| * with the same class name and equal instances of the info classes. |
| * |
| * @param obj the object to compare. |
| * @return true if the object is a {@link OpenMBeanInfo} |
| * instance, |
| * <code>className.equals(object.getClassName())</code> |
| * and each info class has an equal in the other object. |
| */ |
| public boolean equals(Object obj) |
| { |
| if (!(obj instanceof OpenMBeanInfo)) |
| return false; |
| OpenMBeanInfo o = (OpenMBeanInfo) obj; |
| return getClassName().equals(o.getClassName()) && |
| getAttributes().equals(o.getAttributes()) && |
| getConstructors().equals(o.getConstructors()) && |
| getNotifications().equals(o.getNotifications()) && |
| getOperations().equals(o.getOperations()); |
| } |
| |
| /** |
| * <p> |
| * Returns the hashcode of the bean information as the sum of the |
| * hashcodes of the class name and each array (calculated using |
| * java.util.HashSet(<code>java.util.Arrays.asList(signature)).hashCode()</code>). |
| * </p> |
| * <p> |
| * As instances of this class are immutable, the return value |
| * is computed just once for each instance and reused |
| * throughout its life. |
| * </p> |
| * |
| * @return the hashcode of the bean information. |
| */ |
| public int hashCode() |
| { |
| if (hashCode == null) |
| hashCode = |
| Integer.valueOf(getClassName().hashCode() + |
| new HashSet<MBeanAttributeInfo>(Arrays.asList(getAttributes())).hashCode() + |
| new HashSet<MBeanConstructorInfo>(Arrays.asList(getConstructors())).hashCode() + |
| new HashSet<MBeanNotificationInfo>(Arrays.asList(getNotifications())).hashCode() + |
| new HashSet<MBeanOperationInfo>(Arrays.asList(getOperations())).hashCode()); |
| return hashCode.intValue(); |
| } |
| |
| /** |
| * <p> |
| * Returns a textual representation of this instance. This |
| * is constructed using the class name |
| * (<code>javax.management.openmbean.OpenMBeanInfo</code>) |
| * along with the class name and textual representations |
| * of each array. |
| * </p> |
| * <p> |
| * As instances of this class are immutable, the return value |
| * is computed just once for each instance and reused |
| * throughout its life. |
| * </p> |
| * |
| * @return a @link{java.lang.String} instance representing |
| * the instance in textual form. |
| */ |
| public String toString() |
| { |
| if (string == null) |
| string = getClass().getName() |
| + "[className=" + getClassName() |
| + ",attributes=" + Arrays.toString(getAttributes()) |
| + ",constructors=" + Arrays.toString(getConstructors()) |
| + ",notifications=" + Arrays.toString(getNotifications()) |
| + ",operations=" + Arrays.toString(getOperations()) |
| + "]"; |
| return string; |
| } |
| |
| } |