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/*
* Copyright 2011-2019 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.data.config;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.ObjectFactoryCreatingFactoryBean;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;
/**
* Utility methods for {@link BeanDefinitionParser} implementations.
*
* @author Oliver Gierke
* @author Mark Paluch
*/
public abstract class ParsingUtils {
private ParsingUtils() {
}
/**
* Configures a property value for the given property name reading the attribute of the given name from the given
* {@link Element} if the attribute is configured.
*
* @param builder must not be {@literal null}.
* @param element must not be {@literal null}.
* @param attrName must not be {@literal null} or empty.
* @param propertyName must not be {@literal null} or empty.
*/
public static void setPropertyValue(BeanDefinitionBuilder builder, Element element, String attrName,
String propertyName) {
Assert.notNull(builder, "BeanDefinitionBuilder must not be null!");
Assert.notNull(element, "Element must not be null!");
Assert.hasText(attrName, "Attribute name must not be null!");
Assert.hasText(propertyName, "Property name must not be null!");
String attr = element.getAttribute(attrName);
if (StringUtils.hasText(attr)) {
builder.addPropertyValue(propertyName, attr);
}
}
/**
* Sets the property with the given attribute name on the given {@link BeanDefinitionBuilder} to the value of the
* attribute with the given name if the attribute is configured.
*
* @param builder must not be {@literal null}.
* @param element must not be {@literal null}.
* @param attribute must not be {@literal null} or empty.
*/
public static void setPropertyValue(BeanDefinitionBuilder builder, Element element, String attribute) {
setPropertyValue(builder, element, attribute, attribute);
}
/**
* Configures a bean property reference with the value of the attribute of the given name if it is configured.
*
* @param builder must not be {@literal null}.
* @param element must not be {@literal null}.
* @param attribute must not be {@literal null} or empty.
* @param property must not be {@literal null}or empty.
*/
public static void setPropertyReference(BeanDefinitionBuilder builder, Element element, String attribute,
String property) {
Assert.notNull(builder, "BeanDefinitionBuilder must not be null!");
Assert.notNull(element, "Element must not be null!");
Assert.hasText(attribute, "Attribute name must not be null!");
Assert.hasText(property, "Property name must not be null!");
String value = element.getAttribute(attribute);
if (StringUtils.hasText(value)) {
builder.addPropertyReference(property, value);
}
}
/**
* Returns the {@link BeanDefinition} built by the given {@link BeanDefinitionBuilder} enriched with source
* information derived from the given {@link Element}.
*
* @param builder must not be {@literal null}.
* @param context must not be {@literal null}.
* @param element must not be {@literal null}.
* @return
*/
public static AbstractBeanDefinition getSourceBeanDefinition(BeanDefinitionBuilder builder, ParserContext context,
Element element) {
Assert.notNull(element, "Element must not be null!");
Assert.notNull(context, "ParserContext must not be null!");
return getSourceBeanDefinition(builder, context.extractSource(element));
}
/**
* Returns the {@link AbstractBeanDefinition} built by the given builder with the given extracted source applied.
*
* @param builder must not be {@literal null}.
* @param source
* @return
*/
public static AbstractBeanDefinition getSourceBeanDefinition(BeanDefinitionBuilder builder, @Nullable Object source) {
Assert.notNull(builder, "Builder must not be null!");
AbstractBeanDefinition definition = builder.getRawBeanDefinition();
definition.setSource(source);
return definition;
}
/**
* Returns a {@link BeanDefinition} for an {@link ObjectFactoryCreatingFactoryBean} pointing to the bean with the
* given name.
*
* @param targetBeanName must not be {@literal null} or empty.
* @param source
* @return
*/
public static AbstractBeanDefinition getObjectFactoryBeanDefinition(String targetBeanName, @Nullable Object source) {
Assert.hasText(targetBeanName, "Target bean name must not be null or empty!");
BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(ObjectFactoryCreatingFactoryBean.class);
builder.addPropertyValue("targetBeanName", targetBeanName);
builder.setRole(AbstractBeanDefinition.ROLE_INFRASTRUCTURE);
return getSourceBeanDefinition(builder, source);
}
}
