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Spring Framework example source code file (ContextNamespaceHandler.java)

This example Spring Framework source code file (ContextNamespaceHandler.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

beandefinitionparser, beandefinitionparser, dom, illegalstateexception, illegalstateexception, java, jdk, loadtimeweaverbeandefinitionparser, mbeanexportbeandefinitionparser, mbeanserverbeandefinitionparser, propertyplaceholderbeandefinitionparser, string, string, unable, unable

The Spring Framework ContextNamespaceHandler.java source code

/*
 * Copyright 2002-2008 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.context.config;

import org.w3c.dom.Element;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.core.JdkVersion;
import org.springframework.util.ClassUtils;

/**
 * {@link org.springframework.beans.factory.xml.NamespaceHandler}
 * for the '<code>context' namespace.
 *
 * @author Mark Fisher
 * @author Juergen Hoeller
 * @since 2.5
 */
public class ContextNamespaceHandler extends NamespaceHandlerSupport {

	public void init() {
		registerBeanDefinitionParser("property-placeholder", new PropertyPlaceholderBeanDefinitionParser());
		registerBeanDefinitionParser("property-override", new PropertyOverrideBeanDefinitionParser());
		registerJava5DependentParser("annotation-config",
				"org.springframework.context.annotation.AnnotationConfigBeanDefinitionParser");
		registerJava5DependentParser("component-scan",
				"org.springframework.context.annotation.ComponentScanBeanDefinitionParser");
		registerBeanDefinitionParser("load-time-weaver", new LoadTimeWeaverBeanDefinitionParser());
		registerBeanDefinitionParser("spring-configured", new SpringConfiguredBeanDefinitionParser());
		registerBeanDefinitionParser("mbean-export", new MBeanExportBeanDefinitionParser());
		registerBeanDefinitionParser("mbean-server", new MBeanServerBeanDefinitionParser());
	}

	private void registerJava5DependentParser(final String elementName, final String parserClassName) {
		BeanDefinitionParser parser = null;
		if (JdkVersion.isAtLeastJava15()) {
			try {
				Class parserClass = ClassUtils.forName(parserClassName, ContextNamespaceHandler.class.getClassLoader());
				parser = (BeanDefinitionParser) parserClass.newInstance();
			}
			catch (Throwable ex) {
				throw new IllegalStateException("Unable to create Java 1.5 dependent parser: " + parserClassName, ex);
			}
		}
		else {
			parser = new BeanDefinitionParser() {
				public BeanDefinition parse(Element element, ParserContext parserContext) {
					throw new IllegalStateException("Context namespace element '" + elementName +
							"' and its parser class [" + parserClassName + "] are only available on JDK 1.5 and higher");
				}
			};
		}
		registerBeanDefinitionParser(elementName, parser);
	}

}

Other Spring Framework examples (source code examples)

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