1 /* 2 * Copyright (c) 2016, 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.settings; 27 28 import java.util.Objects; 29 import java.util.Set; 30 31 import jdk.jfr.Description; 32 import jdk.jfr.BooleanFlag; 33 import jdk.jfr.Label; 34 import jdk.jfr.MetadataDefinition; 35 import jdk.jfr.Name; 36 import jdk.jfr.internal.PlatformEventType; 37 import jdk.jfr.internal.Type; 38 import jdk.jfr.internal.Control; 39 40 @MetadataDefinition 41 @Label("Enabled") 42 @Description("Record event") 43 @Name(Type.SETTINGS_PREFIX + "Enabled") 44 @BooleanFlag 45 public final class EnabledSetting extends Control { 46 private final BooleanValue booleanValue; 47 private final PlatformEventType eventType; 48 49 public EnabledSetting(PlatformEventType eventType, String defaultValue) { 50 super(defaultValue); 51 this.booleanValue = BooleanValue.valueOf(defaultValue); 52 this.eventType = Objects.requireNonNull(eventType); 53 } 54 55 @Override 56 public String combine(Set<String> values) { 57 return booleanValue.union(values); 58 } 59 60 @Override 61 public void setValue(String value) { 62 booleanValue.setValue(value); 63 eventType.setEnabled(booleanValue.getBoolean()); 64 if (eventType.isEnabled() && !eventType.isJVM()) { 65 if (!eventType.isInstrumented()) { 66 eventType.markForInstrumentation(true); 67 } 68 } 69 } 70 71 @Override 72 public String getValue() { 73 return booleanValue.getValue(); 74 } 75 }