/*
* 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</code>' 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);
}
}