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.util.Arrays;

    29 import java.util.Collections;

    30 import java.util.List;

    31 

    32 import jdk.jfr.ValueDescriptor;

    33 import jdk.jfr.internal.Type;

    34 

    35 /**

    36  * A recorded stack trace.

    37  *

    38  * @since 9

    39  */

    40 public final class RecordedStackTrace extends RecordedObject {

    41 

    42     static ObjectFactory<RecordedStackTrace> createFactory(Type type, TimeConverter timeConverter) {

    43         return new ObjectFactory<RecordedStackTrace>(type) {

    44             @Override

    45             RecordedStackTrace createTyped(List<ValueDescriptor> desc, long id, Object[] object) {

    46                 return new RecordedStackTrace(desc, object, timeConverter);

    47             }

    48         };

    49     }

    50 

    51     private RecordedStackTrace(List<ValueDescriptor> desc, Object[] values, TimeConverter timeConverter) {

    52         super(desc, values, timeConverter);

    53     }

    54 

    55     /**

    56      * Returns the frames in the stack trace.

    57      *

    58      * @return a list of Java stack frames, not {@code null}

    59      */

    60     @SuppressWarnings("unchecked")

    61     public List<RecordedFrame> getFrames() {

    62         Object[] array = getTyped("frames", Object[].class, null);

    63         if (array == null) {

    64             return Collections.EMPTY_LIST;

    65         }

    66         List<?> list = Arrays.asList(array);

    67         return (List<RecordedFrame>) list;

    68     }

    69 

    70     /**

    71      * Returns {@code true} if the stack trace is truncated due to its size,

    72      * {@code false} otherwise.

    73      *

    74      * @return {@code true} if the stack trace is truncated, {@code false}

    75      *         otherwise

    76      */

    77     public boolean isTruncated() {

    78         return getTyped("truncated", Boolean.class, true);

    79     }

    80 }