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 }