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.settings; 27 28 import java.util.Set; 29 30 /** 31 * Helper class for settings that use boolean numbers 32 * 33 */ 34 final class BooleanValue { 35 private String value = "false"; 36 private boolean booleanValue; 37 38 private BooleanValue(boolean b) { 39 booleanValue = b; 40 value = b ? "true" : "false"; 41 } 42 43 public String union(Set<String> values) { 44 for (String v : values) { 45 if ("true".equals(v)) { 46 return "true"; 47 } 48 } 49 return "false"; 50 } 51 52 public void setValue(String value) { 53 this.value = value; 54 this.booleanValue = Boolean.valueOf(value); 55 } 56 57 public final String getValue() { 58 return this.value; 59 } 60 61 public boolean getBoolean() { 62 return booleanValue; 63 } 64 65 public static BooleanValue valueOf(String defaultValue) { 66 if ("true".equals(defaultValue)) { 67 return new BooleanValue(true); 68 } 69 if ("false".equals(defaultValue)) { 70 return new BooleanValue(false); 71 } 72 throw new InternalError("Unknown default value for settings '" + defaultValue + "'"); 73 } 74 }