1 /* 2 * Copyright (c) 2014, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package com.oracle.java.testlibrary; 24 25 /** 26 * Simple class to check writeability, invalid and valid values for concrete VMOption 27 */ 28 public class TestDynamicVMOption { 29 30 private final String name; 31 private final int value; 32 33 /** 34 * Constructor 35 * 36 * @param name of VM option to test 37 */ 38 public TestDynamicVMOption(String name) { 39 this.name = name; 40 this.value = DynamicVMOptionChecker.getIntValue(name); 41 System.out.println(this.name + " = " + this.value); 42 } 43 44 /** 45 * Checks that this value can accept valid percentage values and cannot accept invalid percentage values 46 * 47 * @throws RuntimeException 48 */ 49 public void testPercentageValues() { 50 checkInvalidValue(Integer.toString(Integer.MIN_VALUE)); 51 checkInvalidValue(Integer.toString(Integer.MAX_VALUE)); 52 checkInvalidValue("-10"); 53 checkInvalidValue("190"); 54 } 55 56 /** 57 * Reads VM option from PlatformMXBean and parse it to integer value 58 * 59 * @return value 60 */ 61 public int getIntValue() { 62 return DynamicVMOptionChecker.getIntValue(this.name); 63 } 64 65 /** 66 * Checks that this VM option is dynamically writable 67 * 68 * @throws RuntimeException if option if not writable 69 * @return true 70 */ 71 public boolean checkIsWritable() throws RuntimeException { 72 return DynamicVMOptionChecker.checkIsWritable(this.name); 73 } 74 75 /** 76 * Checks that value for this VM option cannot be set 77 * 78 * @param value to check 79 * @throws RuntimeException on error - when expected exception hasn't been thrown 80 */ 81 public void checkInvalidValue(String value) { 82 DynamicVMOptionChecker.checkInvalidValue(this.name, value); 83 } 84 85 /** 86 * Checks that value for this VM option can be set 87 * 88 * @param value to check 89 * @throws RuntimeException on error - when value in VM is not equal to origin 90 */ 91 public void checkValidValue(String value) { 92 DynamicVMOptionChecker.checkValidValue(this.name, value); 93 } 94 95 }