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