1 /* 2 * Copyright (c) 2013, 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.event.runtime; 27 28 import java.util.HashMap; 29 import java.util.Map; 30 31 import jdk.jfr.Recording; 32 import jdk.jfr.consumer.RecordedEvent; 33 import jdk.test.lib.Asserts; 34 import jdk.test.lib.jfr.EventNames; 35 import jdk.test.lib.jfr.Events; 36 37 /** 38 * @test 39 * @key jfr 40 * 41 * @library /lib / 42 * @run main/othervm jdk.jfr.event.runtime.TestSystemPropertyEvent 43 */ 44 public class TestSystemPropertyEvent { 45 46 private final static String EVENT_NAME = EventNames.InitialSystemProperty; 47 48 public static void main(String[] args) throws Throwable { 49 Map<String, String> systemProps = createInitialSystemProperties(); 50 // Recording should only contain properties defined at JVM start. 51 // This property should not be included. 52 System.setProperty("party.pooper", "buh!"); 53 54 Recording recording = new Recording(); 55 recording.enable(EVENT_NAME); 56 recording.start(); 57 recording.stop(); 58 59 Map<String, String> eventProps = new HashMap<>(); 60 for (RecordedEvent event : Events.fromRecording(recording)) { 61 String key = Events.assertField(event, "key").notEmpty().getValue(); 62 String value = Events.assertField(event, "value").notNull().getValue(); 63 if (!eventProps.containsKey(key)) { 64 // Event is received at both start and end of chunk. Only log first. 65 System.out.println("Event:" + event); 66 } 67 eventProps.put(key, value); 68 } 69 Asserts.assertGreaterThan(eventProps.size(), 4, "Should have at least 5 events"); 70 71 // Value of System.properties may change. We can not expect all values in 72 // events and System.getProperties() to be equal. 73 // To do some verification of property values we require that at least one 74 // property with non-empty value is equal. 75 int countEqualAndNonEmpty = 0; 76 77 String missingKeys = ""; 78 for (String key : eventProps.keySet()) { 79 if (!systemProps.containsKey(key)) { 80 missingKeys += key + " "; 81 continue; 82 } 83 if (isEqualAndNonEmpty(key, eventProps.get(key), systemProps.get(key))) { 84 countEqualAndNonEmpty++; 85 } 86 } 87 88 if (!missingKeys.isEmpty()) { 89 Asserts.fail("Event properties not found in System.properties(): " + missingKeys); 90 } 91 Asserts.assertTrue(countEqualAndNonEmpty > 0, "No property had expected value"); 92 } 93 94 private static boolean isEqualAndNonEmpty(String key, String eventValue, String systemValue) { 95 if (eventValue == null || systemValue == null || eventValue.isEmpty() || systemValue.isEmpty()) { 96 return false; 97 } 98 boolean isEquals = eventValue.equals(systemValue); 99 System.out.printf("eq=%b, key='%s', event='%s', system='%s'%n", isEquals, key, eventValue, systemValue); 100 return isEquals; 101 } 102 103 private static Map<String, String> createInitialSystemProperties() { 104 Map<String, String> result = new HashMap<>(); 105 for (Object keyObject : System.getProperties().keySet()) { 106 String key = (String) keyObject; 107 result.put(key, System.getProperty(key)); 108 System.out.println("initialProp: " + key); 109 } 110 return result; 111 } 112 }