/*
* Copyright 2002-2009 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.core.type.classreading;
import java.io.IOException;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.ClassUtils;
/**
* Simple implementation of the {@link MetadataReaderFactory} interface,
* creating a new ASM {@link org.springframework.asm.ClassReader} for every request.
*
* @author Juergen Hoeller
* @since 2.5
*/
public class SimpleMetadataReaderFactory implements MetadataReaderFactory {
private final ResourceLoader resourceLoader;
/**
* Create a new SimpleMetadataReaderFactory for the default class loader.
*/
public SimpleMetadataReaderFactory() {
this.resourceLoader = new DefaultResourceLoader();
}
/**
* Create a new SimpleMetadataReaderFactory for the given resource loader.
* @param resourceLoader the Spring ResourceLoader to use
* (also determines the ClassLoader to use)
*/
public SimpleMetadataReaderFactory(ResourceLoader resourceLoader) {
this.resourceLoader = (resourceLoader != null ? resourceLoader : new DefaultResourceLoader());
}
/**
* Create a new SimpleMetadataReaderFactory for the given class loader.
* @param classLoader the ClassLoader to use
*/
public SimpleMetadataReaderFactory(ClassLoader classLoader) {
this.resourceLoader =
(classLoader != null ? new DefaultResourceLoader(classLoader) : new DefaultResourceLoader());
}
/**
* Return the ResourceLoader that this MetadataReaderFactory has been
* constructed with.
*/
public final ResourceLoader getResourceLoader() {
return this.resourceLoader;
}
public MetadataReader getMetadataReader(String className) throws IOException {
String resourcePath = ResourceLoader.CLASSPATH_URL_PREFIX +
ClassUtils.convertClassNameToResourcePath(className) + ClassUtils.CLASS_FILE_SUFFIX;
return getMetadataReader(this.resourceLoader.getResource(resourcePath));
}
public MetadataReader getMetadataReader(Resource resource) throws IOException {
return new SimpleMetadataReader(resource, this.resourceLoader.getClassLoader());
}
}
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