/*
* Copyright 2008-2014 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.repository.config;
import static org.springframework.beans.factory.support.BeanDefinitionReaderUtils.*;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.parsing.ReaderContext;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.Assert;
import org.w3c.dom.Element;
/**
* Base class to implement repository namespaces. These will typically consist of a main XML element potentially having
* child elements. The parser will wrap the XML element into a {@link GlobalRepositoryConfigInformation} object and
* allow either manual configuration or automatic detection of repository interfaces.
*
* @author Oliver Gierke
*/
public class RepositoryBeanDefinitionParser implements BeanDefinitionParser {
private final RepositoryConfigurationExtension extension;
/**
* Creates a new {@link RepositoryBeanDefinitionParser} using the given {@link RepositoryConfigurationExtension}.
*
* @param extension must not be {@literal null}.
*/
public RepositoryBeanDefinitionParser(RepositoryConfigurationExtension extension) {
Assert.notNull(extension);
this.extension = extension;
}
/*
* (non-Javadoc)
* @see org.springframework.beans.factory.xml.BeanDefinitionParser#parse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
*/
public BeanDefinition parse(Element element, ParserContext parser) {
try {
Environment environment = parser.getDelegate().getEnvironment();
ResourceLoader resourceLoader = parser.getReaderContext().getResourceLoader();
BeanDefinitionRegistry registry = parser.getRegistry();
XmlRepositoryConfigurationSource configSource = new XmlRepositoryConfigurationSource(element, parser, environment);
RepositoryConfigurationDelegate delegate = new RepositoryConfigurationDelegate(configSource, resourceLoader,
environment);
RepositoryConfigurationUtils.exposeRegistration(extension, registry, configSource);
for (BeanComponentDefinition definition : delegate.registerRepositoriesIn(registry, extension)) {
parser.getReaderContext().fireComponentRegistered(definition);
}
} catch (RuntimeException e) {
handleError(e, element, parser.getReaderContext());
}
return null;
}
private void handleError(Exception e, Element source, ReaderContext reader) {
reader.error(e.getMessage(), reader.extractSource(source), e);
}
/**
* Returns whether the given {@link BeanDefinitionRegistry} already contains a bean of the given type assuming the
* bean name has been autogenerated.
*
* @param type
* @param registry
* @return
*/
protected static boolean hasBean(Class<?> type, BeanDefinitionRegistry registry) {
String name = String.format("%s%s0", type.getName(), GENERATED_BEAN_NAME_SEPARATOR);
return registry.containsBeanDefinition(name);
}
}