org.springframework.jmx.support.ObjectNameManager Maven / Gradle / Ivy
/*
* Copyright 2002-2007 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.jmx.support;
import java.util.Hashtable;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.springframework.util.ClassUtils;
/**
* Helper class for the creation of {@link javax.management.ObjectName} instances.
*
* ObjectName instances will be cached on JMX 1.2,
* whereas they will be recreated for each request on JMX 1.0.
*
* @author Rob Harrop
* @author Juergen Hoeller
* @since 1.2
* @see javax.management.ObjectName#getInstance(String)
*/
public class ObjectNameManager {
// Determine whether the JMX 1.2 ObjectName.getInstance method is available.
private static final boolean getInstanceAvailable =
ClassUtils.hasMethod(ObjectName.class, "getInstance", new Class[] {String.class});
/**
* Retrieve the ObjectName instance corresponding to the supplied name.
* @param objectName the ObjectName in ObjectName or
* String format
* @return the ObjectName instance
* @throws MalformedObjectNameException in case of an invalid object name specification
* @see ObjectName#ObjectName(String)
* @see ObjectName#getInstance(String)
*/
public static ObjectName getInstance(Object objectName) throws MalformedObjectNameException {
if (objectName instanceof ObjectName) {
return (ObjectName) objectName;
}
if (!(objectName instanceof String)) {
throw new MalformedObjectNameException("Invalid ObjectName value type [" +
objectName.getClass().getName() + "]: only ObjectName and String supported.");
}
return getInstance((String) objectName);
}
/**
* Retrieve the ObjectName instance corresponding to the supplied name.
* @param objectName the ObjectName in String format
* @return the ObjectName instance
* @throws MalformedObjectNameException in case of an invalid object name specification
* @see ObjectName#ObjectName(String)
* @see ObjectName#getInstance(String)
*/
public static ObjectName getInstance(String objectName) throws MalformedObjectNameException {
if (getInstanceAvailable) {
return ObjectName.getInstance(objectName);
}
else {
return new ObjectName(objectName);
}
}
/**
* Retrieve an ObjectName instance for the specified domain and a
* single property with the supplied key and value.
* @param domainName the domain name for the ObjectName
* @param key the key for the single property in the ObjectName
* @param value the value for the single property in the ObjectName
* @return the ObjectName instance
* @throws MalformedObjectNameException in case of an invalid object name specification
* @see ObjectName#ObjectName(String, String, String)
* @see ObjectName#getInstance(String, String, String)
*/
public static ObjectName getInstance(String domainName, String key, String value)
throws MalformedObjectNameException {
if (getInstanceAvailable) {
return ObjectName.getInstance(domainName, key, value);
}
else {
return new ObjectName(domainName, key, value);
}
}
/**
* Retrieve an ObjectName instance with the specified domain name
* and the supplied key/name properties.
* @param domainName the domain name for the ObjectName
* @param properties the properties for the ObjectName
* @return the ObjectName instance
* @throws MalformedObjectNameException in case of an invalid object name specification
* @see ObjectName#ObjectName(String, java.util.Hashtable)
* @see ObjectName#getInstance(String, java.util.Hashtable)
*/
public static ObjectName getInstance(String domainName, Hashtable properties)
throws MalformedObjectNameException {
if (getInstanceAvailable) {
return ObjectName.getInstance(domainName, properties);
}
else {
return new ObjectName(domainName, properties);
}
}
}