1 /*
2 * Copyright 1999-2006 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any 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 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 }
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