1 /* 2 * Copyright (c) 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.consumer; 27 28 import java.util.HashMap; 29 import java.util.Map; 30 import java.util.StringJoiner; 31 32 final class ParserFilter { 33 public static final ParserFilter ACCEPT_ALL = new ParserFilter(true, Map.of()); 34 35 private final Map<String, Long> thresholds; 36 private final boolean acceptAll; 37 ParserFilter()38 public ParserFilter() { 39 this(false, new HashMap<>()); 40 } 41 ParserFilter(boolean acceptAll, Map<String, Long> thresholds)42 private ParserFilter(boolean acceptAll, Map<String, Long> thresholds) { 43 this.acceptAll = acceptAll; 44 this.thresholds = thresholds; 45 } 46 setThreshold(String eventName, long nanos)47 public void setThreshold(String eventName, long nanos) { 48 Long l = thresholds.get(eventName); 49 if (l != null) { 50 l = Math.min(l, nanos); 51 } else { 52 l = nanos; 53 } 54 thresholds.put(eventName, l); 55 } 56 getThreshold(String eventName)57 public long getThreshold(String eventName) { 58 if (acceptAll) { 59 return 0L; 60 } 61 Long l = thresholds.get(eventName); 62 if (l != null) { 63 return l; 64 } 65 return -1; 66 } 67 68 @Override toString()69 public String toString() { 70 if (acceptAll) { 71 return "ACCEPT ALL"; 72 } 73 74 StringJoiner sb = new StringJoiner(", "); 75 for (String key : thresholds.keySet().toArray(new String[0])) { 76 Long value = thresholds.get(key); 77 sb.add(key + " = " + value); 78 } 79 return sb.toString(); 80 } 81 } 82