1 /* 2 * Copyright (c) 2016, 2019, 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; 27 28 /* Mapped against c++ enum in jfrLogTagSet.hpp */ 29 public enum LogTag { 30 /** 31 * Covers 32 * <ul> 33 * <li>Initialization of Flight Recorder 34 * <li> recording life cycle (start, stop and dump) 35 * <li> repository life cycle 36 * <li>loading of configuration files. 37 * </ul> 38 * Target audience: operations 39 */ 40 JFR(0), 41 /** 42 * Covers general implementation aspects of JFR (for Hotspot developers) 43 */ 44 JFR_SYSTEM(1), 45 /** 46 * Covers JVM/JDK events (for Hotspot developers) 47 */ 48 JFR_SYSTEM_EVENT(2), 49 /** 50 * Covers setting for the JVM/JDK (for Hotspot developers) 51 */ 52 JFR_SYSTEM_SETTING(3), 53 /** 54 * Covers generated bytecode (for Hotspot developers) 55 */ 56 JFR_SYSTEM_BYTECODE(4), 57 /** 58 * Covers XML parsing (for Hotspot developers) 59 */ 60 JFR_SYSTEM_PARSER(5), 61 /** 62 * Covers metadata for JVM/JDK (for Hotspot developers) 63 */ 64 JFR_SYSTEM_METADATA(6), 65 /** 66 * Covers metadata for Java user (for Hotspot developers) 67 */ 68 JFR_METADATA(7), 69 /** 70 * Covers events (for users of the JDK) 71 */ 72 JFR_EVENT(8), 73 /** 74 * Covers setting (for users of the JDK) 75 */ 76 JFR_SETTING(9); 77 /* set from native side */ 78 private volatile int tagSetLevel = 100; // prevent logging if JVM log system has not been initialized 79 80 final int id; 81 82 LogTag(int tagId) { 83 id = tagId; 84 } 85 86 public boolean shouldLog(int level) { 87 return true; // jdk8 doesn't support log level, leave the control to hotspot. see jfrLog.hpp 88 } 89 }