1/* 2 * Copyright (c) 1999, 2008, 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 26package javax.management; 27 28 29/** 30 * This class is used by the query-building mechanism to represent binary 31 * operations. 32 * @serial include 33 * 34 * @since 1.5 35 */ 36class InQueryExp extends QueryEval implements QueryExp { 37 38 /* Serial version */ 39 private static final long serialVersionUID = -5801329450358952434L; 40 41 /** 42 * @serial The {@link ValueExp} to be found 43 */ 44 private ValueExp val; 45 46 /** 47 * @serial The array of {@link ValueExp} to be searched 48 */ 49 private ValueExp[] valueList; 50 51 52 /** 53 * Basic Constructor. 54 */ 55 public InQueryExp() { 56 } 57 58 /** 59 * Creates a new InQueryExp with the specified ValueExp to be found in 60 * a specified array of ValueExp. 61 */ 62 public InQueryExp(ValueExp v1, ValueExp items[]) { 63 val = v1; 64 valueList = items; 65 } 66 67 68 /** 69 * Returns the checked value of the query. 70 */ 71 public ValueExp getCheckedValue() { 72 return val; 73 } 74 75 /** 76 * Returns the array of values of the query. 77 */ 78 public ValueExp[] getExplicitValues() { 79 return valueList; 80 } 81 82 /** 83 * Applies the InQueryExp on a MBean. 84 * 85 * @param name The name of the MBean on which the InQueryExp will be applied. 86 * 87 * @return True if the query was successfully applied to the MBean, false otherwise. 88 * 89 * @exception BadStringOperationException 90 * @exception BadBinaryOpValueExpException 91 * @exception BadAttributeValueExpException 92 * @exception InvalidApplicationException 93 */ 94 public boolean apply(ObjectName name) 95 throws BadStringOperationException, BadBinaryOpValueExpException, 96 BadAttributeValueExpException, InvalidApplicationException { 97 if (valueList != null) { 98 ValueExp v = val.apply(name); 99 boolean numeric = v instanceof NumericValueExp; 100 101 for (ValueExp element : valueList) { 102 element = element.apply(name); 103 if (numeric) { 104 if (((NumericValueExp) element).doubleValue() == 105 ((NumericValueExp) v).doubleValue()) { 106 return true; 107 } 108 } else { 109 if (((StringValueExp) element).getValue().equals( 110 ((StringValueExp) v).getValue())) { 111 return true; 112 } 113 } 114 } 115 } 116 return false; 117 } 118 119 /** 120 * Returns the string representing the object. 121 */ 122 public String toString() { 123 return val + " in (" + generateValueList() + ")"; 124 } 125 126 127 private String generateValueList() { 128 if (valueList == null || valueList.length == 0) { 129 return ""; 130 } 131 132 final StringBuilder result = 133 new StringBuilder(valueList[0].toString()); 134 135 for (int i = 1; i < valueList.length; i++) { 136 result.append(", "); 137 result.append(valueList[i]); 138 } 139 140 return result.toString(); 141 } 142 143 } 144