jdk-24/jdk/test/javax/management/MBeanServer/AttributeListMapTest.java
Eamonn McManus bbac59f218 6336968: Methods to convert AttributeList to/from Map
6750008: Add JMX.getSpecificationVersion(MBeanServerConnection) and document interop
6750472: Add a way to convert a CompositeData into a Map
6752563: Allow CompositeDataSupport to have zero items

Small JMX RFEs

Reviewed-by: dfuchs
2008-11-07 19:19:08 +01:00

116 lines
4.4 KiB
Java

/*
* Copyright 2008 Sun Microsystems, Inc. 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.
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/*
* @test
* @bug 6336968
* @summary Test AttributeList.toMap
* @author Eamonn McManus
*/
import java.math.BigInteger;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import javax.management.Attribute;
import javax.management.AttributeList;
public class AttributeListMapTest {
private static String failure;
public static void main(String[] args) throws Exception {
AttributeList attrs = new AttributeList(Arrays.asList(
new Attribute("Str", "Five"),
new Attribute("Int", 5),
new Attribute("Flt", 5.0)));
Map<String, Object> map = attrs.toMap();
final Map<String, Object> expectMap = new HashMap<String, Object>();
for (Attribute attr : attrs.asList())
expectMap.put(attr.getName(), attr.getValue());
assertEquals("Initial map", expectMap, map);
assertEquals("Initial map size", 3, map.size());
assertEquals("Name set", expectMap.keySet(), map.keySet());
assertEquals("Values", new HashSet<Object>(expectMap.values()),
new HashSet<Object>(map.values()));
assertEquals("Entry set", expectMap.entrySet(), map.entrySet());
AttributeList attrs2 = new AttributeList(map);
assertEquals("AttributeList from Map", attrs, attrs2);
// This assumes that the Map conserves the order of the attributes,
// which is not specified but true because we use LinkedHashMap.
// Check that toMap fails if the list contains non-Attribute elements.
AttributeList attrs3 = new AttributeList(attrs);
attrs3.add("Hello"); // allowed but curious
try {
map = attrs3.toMap();
fail("toMap succeeded on list with non-Attribute elements");
} catch (Exception e) {
assertEquals("Exception for toMap with non-Atttribute elements",
IllegalArgumentException.class, e.getClass());
}
// Check that the Map does not reflect changes made to the list after
// the Map was obtained.
AttributeList attrs4 = new AttributeList(attrs);
map = attrs4.toMap();
attrs4.add(new Attribute("Big", new BigInteger("5")));
assertEquals("Map after adding element to list", expectMap, map);
// Check that if there is more than one Attribute with the same name
// then toMap() chooses the last of them.
AttributeList attrs5 = new AttributeList(attrs);
attrs5.add(new Attribute("Str", "Cinq"));
map = attrs5.toMap();
assertEquals("Size of Map for list with duplicate attribute name",
3, map.size());
Object value = map.get("Str");
assertEquals("Value of Str in Map for list with two values for it",
"Cinq", value);
if (failure == null)
System.out.println("TEST PASSED");
else
throw new Exception("TEST FAILED: " + failure);
}
private static void assertEquals(String what, Object expect, Object actual) {
if (eq(expect, actual))
System.out.println("OK: " + what);
else
fail(what + ": expected " + expect + ", got " + actual);
}
private static boolean eq(Object x, Object y) {
return (x == null) ? (y == null) : x.equals(y);
}
private static void fail(String why) {
System.out.println("FAIL: " + why);
failure = why;
}
}