src/java.management/share/classes/javax/management/QualifiedAttributeValueExp.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.management/share/classes/javax/management/QualifiedAttributeValueExp.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 1999, 2008, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package javax.management;
+
+
+/**
+ * <p>Represents attributes used as arguments to relational constraints,
+ * where the attribute must be in an MBean of a specified {@linkplain
+ * MBeanInfo#getClassName() class}. A QualifiedAttributeValueExp may be used
+ * anywhere a ValueExp is required.
+ *
+ * @serial include
+ *
+ * @since 1.5
+ */
+class QualifiedAttributeValueExp extends AttributeValueExp {
+
+
+ /* Serial version */
+ private static final long serialVersionUID = 8832517277410933254L;
+
+ /**
+ * @serial The attribute class name
+ */
+ private String className;
+
+
+ /**
+ * Basic Constructor.
+ * @deprecated see {@link AttributeValueExp#AttributeValueExp()}
+ */
+ @Deprecated
+ public QualifiedAttributeValueExp() {
+ }
+
+ /**
+ * Creates a new QualifiedAttributeValueExp representing the specified object
+ * attribute, named attr with class name className.
+ */
+ public QualifiedAttributeValueExp(String className, String attr) {
+ super(attr);
+ this.className = className;
+ }
+
+
+ /**
+ * Returns a string representation of the class name of the attribute.
+ */
+ public String getAttrClassName() {
+ return className;
+ }
+
+ /**
+ * Applies the QualifiedAttributeValueExp to an MBean.
+ *
+ * @param name The name of the MBean on which the QualifiedAttributeValueExp will be applied.
+ *
+ * @return The ValueExp.
+ *
+ * @exception BadStringOperationException
+ * @exception BadBinaryOpValueExpException
+ * @exception BadAttributeValueExpException
+ * @exception InvalidApplicationException
+ */
+ @Override
+ public ValueExp apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException,
+ BadAttributeValueExpException, InvalidApplicationException {
+ try {
+ MBeanServer server = QueryEval.getMBeanServer();
+ String v = server.getObjectInstance(name).getClassName();
+
+ if (v.equals(className)) {
+ return super.apply(name);
+ }
+ throw new InvalidApplicationException("Class name is " + v +
+ ", should be " + className);
+
+ } catch (Exception e) {
+ throw new InvalidApplicationException("Qualified attribute: " + e);
+ /* Can happen if MBean disappears between the time we
+ construct the list of MBeans to query and the time we
+ evaluate the query on this MBean, or if
+ getObjectInstance throws SecurityException. */
+ }
+ }
+
+ /**
+ * Returns the string representing its value
+ */
+ @Override
+ public String toString() {
+ if (className != null) {
+ return className + "." + super.toString();
+ } else {
+ return super.toString();
+ }
+ }
+
+}