01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package javax.management;
23:
24: /**
25: * A qualified string that is an argument to a query.<p>
26: *
27: * @author <a href="mailto:Adrian.Brock@HappeningTimes.com">Adrian Brock</a>.
28: * @version $Revision: 57200 $
29: */
30: class QualifiedAttributeValueExp extends AttributeValueExp {
31: // Constants ---------------------------------------------------
32:
33: private static final long serialVersionUID = 8832517277410933254L;
34:
35: // Attributes --------------------------------------------------
36:
37: /**
38: * The class name
39: */
40: private String className;
41:
42: // Static -----------------------------------------------------
43:
44: // Constructors ------------------------------------------------
45:
46: /**
47: * Construct an attribute value expression for the passed class and
48: * attribute name
49: *
50: * @param className the class name
51: * @param value the attribute name
52: */
53: public QualifiedAttributeValueExp(String className, String value) {
54: super (value);
55: this .className = className;
56: }
57:
58: // Public ------------------------------------------------------
59:
60: // ValueExp Implementation -------------------------------------
61:
62: public ValueExp apply(ObjectName name)
63: throws BadStringOperationException,
64: BadBinaryOpValueExpException,
65: BadAttributeValueExpException, InvalidApplicationException {
66: try {
67: ObjectInstance instance = QueryEval.getMBeanServer()
68: .getObjectInstance(name);
69: if (instance.getClassName().equals(className))
70: return super .apply(name);
71: } catch (Exception e) {
72: // REVIEW: What happens here? Should this happen?
73: return null;
74: }
75: throw new InvalidApplicationException(new String(name + "\n"
76: + className));
77: }
78:
79: // Object overrides --------------------------------------------
80:
81: public String toString() {
82: return new String(className + "." + getAttributeName());
83: }
84:
85: // Protected ---------------------------------------------------
86:
87: // Package Private ---------------------------------------------
88:
89: // Private -----------------------------------------------------
90:
91: // Inner Classes -----------------------------------------------
92: }
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