| /* |
| * Copyright (c) 2004, 2015, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.management; |
| |
| import java.io.Serializable; |
| import java.util.*; |
| import javax.management.openmbean.ArrayType; |
| import javax.management.openmbean.CompositeData; |
| import javax.management.openmbean.CompositeType; |
| import javax.management.openmbean.OpenType; |
| import javax.management.openmbean.TabularType; |
| |
| /** |
| * This abstract class provides the implementation of the CompositeData |
| * interface. A CompositeData object will be lazily created only when |
| * the CompositeData interface is used. |
| * |
| * Classes that extends this abstract class will implement the |
| * getCompositeData() method. The object returned by the |
| * getCompositeData() is an instance of CompositeData such that |
| * the instance serializes itself as the type CompositeDataSupport. |
| */ |
| public abstract class LazyCompositeData |
| implements CompositeData, Serializable { |
| |
| private CompositeData compositeData; |
| |
| // Implementation of the CompositeData interface |
| @Override |
| public boolean containsKey(String key) { |
| return compositeData().containsKey(key); |
| } |
| |
| @Override |
| public boolean containsValue(Object value) { |
| return compositeData().containsValue(value); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return compositeData().equals(obj); |
| } |
| |
| @Override |
| public Object get(String key) { |
| return compositeData().get(key); |
| } |
| |
| @Override |
| public Object[] getAll(String[] keys) { |
| return compositeData().getAll(keys); |
| } |
| |
| @Override |
| public CompositeType getCompositeType() { |
| return compositeData().getCompositeType(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return compositeData().hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| /** FIXME: What should this be?? */ |
| return compositeData().toString(); |
| } |
| |
| @Override |
| public Collection<?> values() { |
| return compositeData().values(); |
| } |
| |
| /* Lazy creation of a CompositeData object |
| * only when the CompositeData interface is used. |
| */ |
| private synchronized CompositeData compositeData() { |
| if (compositeData != null) |
| return compositeData; |
| compositeData = getCompositeData(); |
| return compositeData; |
| } |
| |
| /** |
| * Designate to a CompositeData object when writing to an |
| * output stream during serialization so that the receiver |
| * only requires JMX 1.2 classes but not any implementation |
| * specific class. |
| */ |
| protected Object writeReplace() throws java.io.ObjectStreamException { |
| return compositeData(); |
| } |
| |
| /** |
| * Returns the CompositeData representing this object. |
| * The returned CompositeData object must be an instance |
| * of javax.management.openmbean.CompositeDataSupport class |
| * so that no implementation specific class is required |
| * for unmarshalling besides JMX 1.2 classes. |
| */ |
| protected abstract CompositeData getCompositeData(); |
| |
| // Helper methods |
| public static String getString(CompositeData cd, String itemName) { |
| if (cd == null) |
| throw new IllegalArgumentException("Null CompositeData"); |
| |
| return (String) cd.get(itemName); |
| } |
| |
| public static boolean getBoolean(CompositeData cd, String itemName) { |
| if (cd == null) |
| throw new IllegalArgumentException("Null CompositeData"); |
| |
| return ((Boolean) cd.get(itemName)); |
| } |
| |
| public static long getLong(CompositeData cd, String itemName) { |
| if (cd == null) |
| throw new IllegalArgumentException("Null CompositeData"); |
| |
| return ((Long) cd.get(itemName)); |
| } |
| |
| public static int getInt(CompositeData cd, String itemName) { |
| if (cd == null) |
| throw new IllegalArgumentException("Null CompositeData"); |
| |
| return ((Integer) cd.get(itemName)); |
| } |
| |
| /** |
| * Compares two CompositeTypes and returns true if |
| * all items in type1 exist in type2 and their item types |
| * are the same. |
| * @param type1 the base composite type |
| * @param type2 the checked composite type |
| * @return {@code true} if all items in type1 exist in type2 and their item |
| * types are the same. |
| */ |
| protected static boolean isTypeMatched(CompositeType type1, CompositeType type2) { |
| if (type1 == type2) return true; |
| |
| // We can't use CompositeType.isValue() since it returns false |
| // if the type name doesn't match. |
| Set<String> allItems = type1.keySet(); |
| |
| // Check all items in the type1 exist in type2 |
| if (!type2.keySet().containsAll(allItems)) |
| return false; |
| |
| return allItems.stream().allMatch( |
| item -> isTypeMatched(type1.getType(item), type2.getType(item)) |
| ); |
| } |
| |
| protected static boolean isTypeMatched(TabularType type1, TabularType type2) { |
| if (type1 == type2) return true; |
| |
| List<String> list1 = type1.getIndexNames(); |
| List<String> list2 = type2.getIndexNames(); |
| |
| // check if the list of index names are the same |
| if (!list1.equals(list2)) |
| return false; |
| |
| return isTypeMatched(type1.getRowType(), type2.getRowType()); |
| } |
| |
| protected static boolean isTypeMatched(ArrayType<?> type1, ArrayType<?> type2) { |
| if (type1 == type2) return true; |
| |
| int dim1 = type1.getDimension(); |
| int dim2 = type2.getDimension(); |
| |
| // check if the array dimensions are the same |
| if (dim1 != dim2) |
| return false; |
| |
| return isTypeMatched(type1.getElementOpenType(), type2.getElementOpenType()); |
| } |
| |
| private static boolean isTypeMatched(OpenType<?> ot1, OpenType<?> ot2) { |
| if (ot1 instanceof CompositeType) { |
| if (! (ot2 instanceof CompositeType)) |
| return false; |
| if (!isTypeMatched((CompositeType) ot1, (CompositeType) ot2)) |
| return false; |
| } else if (ot1 instanceof TabularType) { |
| if (! (ot2 instanceof TabularType)) |
| return false; |
| if (!isTypeMatched((TabularType) ot1, (TabularType) ot2)) |
| return false; |
| } else if (ot1 instanceof ArrayType) { |
| if (! (ot2 instanceof ArrayType)) |
| return false; |
| if (!isTypeMatched((ArrayType<?>) ot1, (ArrayType<?>) ot2)) { |
| return false; |
| } |
| } else if (!ot1.equals(ot2)) { |
| return false; |
| } |
| return true; |
| } |
| |
| private static final long serialVersionUID = -2190411934472666714L; |
| } |