1 /*
   2  * Copyright (c) 2012, 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.internal.instrument;
  27 
  28 import java.util.concurrent.atomic.AtomicLong;
  29 
  30 import jdk.jfr.events.ErrorThrownEvent;
  31 import jdk.jfr.events.ExceptionThrownEvent;
  32 
  33 public final class ThrowableTracer {
  34 
  35     private static AtomicLong numThrowables = new AtomicLong(0);
  36 
  37     public static void traceError(Error e, String message) {
  38         if (e instanceof OutOfMemoryError) {
  39             return;
  40         }
  41         ErrorThrownEvent errorEvent = new ErrorThrownEvent();
  42         errorEvent.message = message;
  43         errorEvent.thrownClass = e.getClass();
  44         errorEvent.commit();
  45 
  46         ExceptionThrownEvent exceptionEvent = new ExceptionThrownEvent();
  47         exceptionEvent.message = message;
  48         exceptionEvent.thrownClass = e.getClass();
  49         exceptionEvent.commit();
  50         numThrowables.incrementAndGet();
  51     }
  52 
  53     public static void traceThrowable(Throwable t, String message) {
  54         ExceptionThrownEvent event = new ExceptionThrownEvent();
  55         event.message = message;
  56         event.thrownClass = t.getClass();
  57         event.commit();
  58         numThrowables.incrementAndGet();
  59     }
  60 
  61     public static long numThrowables() {
  62         return numThrowables.get();
  63     }
  64 }