1 /* 2 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.consumer; 27 28 import java.lang.reflect.Modifier; 29 import java.util.List; 30 31 import jdk.jfr.ValueDescriptor; 32 import jdk.jfr.internal.Type; 33 34 /** 35 * A recorded Java type, such as a class or an interface. 36 * 37 * @since 9 38 */ 39 public final class RecordedClass extends RecordedObject { 40 41 static ObjectFactory<RecordedClass> createFactory(Type type, TimeConverter timeConverter) { 42 return new ObjectFactory<RecordedClass>(type) { 43 @Override 44 RecordedClass createTyped(List<ValueDescriptor> desc, long id, Object[] object) { 45 return new RecordedClass(desc, id, object, timeConverter); 46 } 47 }; 48 } 49 50 private final long uniqueId; 51 52 // package private 53 private RecordedClass(List<ValueDescriptor> descriptors, long id, Object[] values, TimeConverter timeConverter) { 54 super(descriptors, values, timeConverter); 55 this.uniqueId = id; 56 } 57 58 /** 59 * Returns the modifiers of the class. 60 * <p> 61 * See {@link java.lang.reflect.Modifier} 62 * 63 * @return the modifiers 64 * 65 * @see Modifier 66 */ 67 public int getModifiers() { 68 return getTyped("modifiers", Integer.class, -1); 69 } 70 71 /** 72 * Returns the class loader that defined the class. 73 * <P> 74 * If the bootstrap class loader is represented as {@code null} in the Java 75 * Virtual Machine (JVM), then {@code null} is also the return value of this method. 76 * 77 * @return the class loader defining this class, can be {@code null} 78 */ 79 public RecordedClassLoader getClassLoader() { 80 return getTyped("classLoader", RecordedClassLoader.class, null); 81 } 82 83 /** 84 * Returns the fully qualified name of the class (for example, 85 * {@code "java.lang.String"}). 86 * 87 * @return the class name, not {@code null} 88 */ 89 public String getName() { 90 return getTyped("name", String.class, null).replace("/", "."); 91 } 92 93 /** 94 * Returns a unique ID for the class. 95 * <p> 96 * The ID might not be the same between Java Virtual Machine (JVM) instances. 97 * 98 * @return a unique ID 99 */ 100 public long getId() { 101 return uniqueId; 102 } 103 }