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| 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 | |||
| 26 | package 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 | */ | ||
| 36 | class BinaryRelQueryExp extends QueryEval implements QueryExp { | ||
| 37 | |||
| 38 | /* Serial version */ | ||
| 39 | private static final long serialVersionUID = -5690656271650491000L; | ||
| 40 | |||
| 41 | /** | ||
| 42 | * @serial The operator | ||
| 43 | */ | ||
| 44 | private int relOp; | ||
| 45 | |||
| 46 | /** | ||
| 47 | * @serial The first value | ||
| 48 | */ | ||
| 49 | private ValueExp exp1; | ||
| 50 | |||
| 51 | /** | ||
| 52 | * @serial The second value | ||
| 53 | */ | ||
| 54 | private ValueExp exp2; | ||
| 55 | |||
| 56 | |||
| 57 | /** | ||
| 58 | * Basic Constructor. | ||
| 59 | */ | ||
| 60 | public BinaryRelQueryExp() { | ||
| 61 | } | ||
| 62 | |||
| 63 | /** | ||
| 64 | * Creates a new BinaryRelQueryExp with operator op applied on v1 and | ||
| 65 | * v2 values. | ||
| 66 | */ | ||
| 67 | public BinaryRelQueryExp(int op, ValueExp v1, ValueExp v2) { | ||
| 68 | relOp = op; | ||
| 69 | exp1 = v1; | ||
| 70 | exp2 = v2; | ||
| 71 | } | ||
| 72 | |||
| 73 | |||
| 74 | /** | ||
| 75 | * Returns the operator of the query. | ||
| 76 | */ | ||
| 77 | public int getOperator() { | ||
| 78 | return relOp; | ||
| 79 | } | ||
| 80 | |||
| 81 | /** | ||
| 82 | * Returns the left value of the query. | ||
| 83 | */ | ||
| 84 | public ValueExp getLeftValue() { | ||
| 85 | return exp1; | ||
| 86 | } | ||
| 87 | |||
| 88 | /** | ||
| 89 | * Returns the right value of the query. | ||
| 90 | */ | ||
| 91 | public ValueExp getRightValue() { | ||
| 92 | return exp2; | ||
| 93 | } | ||
| 94 | |||
| 95 | /** | ||
| 96 | * Applies the BinaryRelQueryExp on an MBean. | ||
| 97 | * | ||
| 98 | * @param name The name of the MBean on which the BinaryRelQueryExp will be applied. | ||
| 99 | * | ||
| 100 | * @return True if the query was successfully applied to the MBean, false otherwise. | ||
| 101 | * | ||
| 102 | * @exception BadStringOperationException | ||
| 103 | * @exception BadBinaryOpValueExpException | ||
| 104 | * @exception BadAttributeValueExpException | ||
| 105 | * @exception InvalidApplicationException | ||
| 106 | */ | ||
| 107 | public boolean apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException, | ||
| 108 | BadAttributeValueExpException, InvalidApplicationException { | ||
| 109 | Object val1 = exp1.apply(name); | ||
| 110 | Object val2 = exp2.apply(name); | ||
| 111 | boolean numeric = val1 instanceof NumericValueExp; | ||
| 112 | boolean bool = val1 instanceof BooleanValueExp; | ||
| 113 | if (numeric) { | ||
| 114 | if (((NumericValueExp)val1).isLong()) { | ||
| 115 | long lval1 = ((NumericValueExp)val1).longValue(); | ||
| 116 | long lval2 = ((NumericValueExp)val2).longValue(); | ||
| 117 | |||
| 118 | switch (relOp) { | ||
| 119 | case Query.GT: | ||
| 120 | return lval1 > lval2; | ||
| 121 | case Query.LT: | ||
| 122 | return lval1 < lval2; | ||
| 123 | case Query.GE: | ||
| 124 | return lval1 >= lval2; | ||
| 125 | case Query.LE: | ||
| 126 | return lval1 <= lval2; | ||
| 127 | case Query.EQ: | ||
| 128 | return lval1 == lval2; | ||
| 129 | } | ||
| 130 | } else { | ||
| 131 | double dval1 = ((NumericValueExp)val1).doubleValue(); | ||
| 132 | double dval2 = ((NumericValueExp)val2).doubleValue(); | ||
| 133 | |||
| 134 | switch (relOp) { | ||
| 135 | case Query.GT: | ||
| 136 | return dval1 > dval2; | ||
| 137 | case Query.LT: | ||
| 138 | return dval1 < dval2; | ||
| 139 | case Query.GE: | ||
| 140 | return dval1 >= dval2; | ||
| 141 | case Query.LE: | ||
| 142 | return dval1 <= dval2; | ||
| 143 | case Query.EQ: | ||
| 144 | return dval1 == dval2; | ||
| 145 | } | ||
| 146 | } | ||
| 147 | |||
| 148 | } else if (bool) { | ||
| 149 | |||
| 150 | boolean bval1 = ((BooleanValueExp)val1).getValue().booleanValue(); | ||
| 151 | boolean bval2 = ((BooleanValueExp)val2).getValue().booleanValue(); | ||
| 152 | |||
| 153 | switch (relOp) { | ||
| 154 | case Query.GT: | ||
| 155 | return bval1 && !bval2; | ||
| 156 | case Query.LT: | ||
| 157 | return !bval1 && bval2; | ||
| 158 | case Query.GE: | ||
| 159 | return bval1 || !bval2; | ||
| 160 | case Query.LE: | ||
| 161 | return !bval1 || bval2; | ||
| 162 | case Query.EQ: | ||
| 163 | return bval1 == bval2; | ||
| 164 | } | ||
| 165 | |||
| 166 | } else { | ||
| 167 | String sval1 = ((StringValueExp)val1).getValue(); | ||
| 168 | String sval2 = ((StringValueExp)val2).getValue(); | ||
| 169 | |||
| 170 | switch (relOp) { | ||
| 171 | case Query.GT: | ||
| 172 | return sval1.compareTo(sval2) > 0; | ||
| 173 | case Query.LT: | ||
| 174 | return sval1.compareTo(sval2) < 0; | ||
| 175 | case Query.GE: | ||
| 176 | return sval1.compareTo(sval2) >= 0; | ||
| 177 | case Query.LE: | ||
| 178 | return sval1.compareTo(sval2) <= 0; | ||
| 179 | case Query.EQ: | ||
| 180 | return sval1.compareTo(sval2) == 0; | ||
| 181 | } | ||
| 182 | } | ||
| 183 | |||
| 184 | return false; | ||
| 185 | } | ||
| 186 | |||
| 187 | /** | ||
| 188 | * Returns the string representing the object. | ||
| 189 | */ | ||
| 190 | @Override | ||
| 191 | public String toString() { | ||
| 192 | return "(" + exp1 + ") " + relOpString() + " (" + exp2 + ")"; | ||
| 193 | } | ||
| 194 | |||
| 195 | private String relOpString() { | ||
| 196 | switch (relOp) { | ||
| 197 | case Query.GT: | ||
| 198 | return ">"; | ||
| 199 | case Query.LT: | ||
| 200 | return "<"; | ||
| 201 | case Query.GE: | ||
| 202 | return ">="; | ||
| 203 | case Query.LE: | ||
| 204 | return "<="; | ||
| 205 | case Query.EQ: | ||
| 206 | return "="; | ||
| 207 | } | ||
| 208 | |||
| 209 | return "="; | ||
| 210 | } | ||
| 211 | |||
| 212 | } | ||