Spring Framework example source code file (JndiLookupBeanDefinitionParser.java)

This example Spring Framework source code file (JndiLookupBeanDefinitionParser.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

abstractjndilocatingbeandefinitionparser, beandefinitionbuilder, default_object, default_ref, default_ref, default_value, dom, jndilookupbeandefinitionparser, or, parsercontext, parsercontext, runtimebeanreference, runtimebeanreference, string, string

The Spring Framework JndiLookupBeanDefinitionParser.java source code

/*
 * 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.ejb.config;

import org.w3c.dom.Element;

import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.jndi.JndiObjectFactoryBean;
import org.springframework.util.StringUtils;

/**
 * Simple {@link org.springframework.beans.factory.xml.BeanDefinitionParser} implementation that
 * translates <code>jndi-lookup tag into {@link JndiObjectFactoryBean} definitions.
 *
 * @author Rob Harrop
 * @author Juergen Hoeller
 * @since 2.0
 * @see JndiObjectFactoryBean
 */
class JndiLookupBeanDefinitionParser extends AbstractJndiLocatingBeanDefinitionParser {

	public static final String DEFAULT_VALUE = "default-value";

	public static final String DEFAULT_REF = "default-ref";

	public static final String DEFAULT_OBJECT = "defaultObject";


	protected Class getBeanClass(Element element) {
		return JndiObjectFactoryBean.class;
	}

	protected boolean isEligibleAttribute(String attributeName) {
		return (super.isEligibleAttribute(attributeName) &&
				!DEFAULT_VALUE.equals(attributeName) && !DEFAULT_REF.equals(attributeName));
	}

	protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
		super.doParse(element, parserContext, builder);

		String defaultValue = element.getAttribute(DEFAULT_VALUE);
		String defaultRef = element.getAttribute(DEFAULT_REF);
		if (StringUtils.hasLength(defaultValue)) {
			if (StringUtils.hasLength(defaultRef)) {
				parserContext.getReaderContext().error("<jndi-lookup> element is only allowed to contain either " +
						"'default-value' attribute OR 'default-ref' attribute, not both", element);
			}
			builder.addPropertyValue(DEFAULT_OBJECT, defaultValue);
		}
		else if (StringUtils.hasLength(defaultRef)) {
			builder.addPropertyValue(DEFAULT_OBJECT, new RuntimeBeanReference(defaultRef));
		}
	}

}