/*
* Copyright 2010 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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 com.alibaba.citrus.service.resource.loader;
import static com.alibaba.citrus.util.BasicConstant.*;
import java.net.URL;
import java.util.Set;
import org.springframework.context.ResourceLoaderAware;
import com.alibaba.citrus.service.resource.Resource;
import com.alibaba.citrus.service.resource.ResourceLoader;
import com.alibaba.citrus.service.resource.ResourceLoaderContext;
import com.alibaba.citrus.service.resource.ResourceLoadingOption;
import com.alibaba.citrus.service.resource.ResourceLoadingService;
import com.alibaba.citrus.service.resource.support.URLResource;
/**
* ��classloader��װ����Դ��
*
* @author Michael Zhou
*/
public class ClasspathResourceLoader implements ResourceLoader, ResourceLoaderAware {
private ClassLoader cl;
public ClassLoader getClassLoader() {
return cl;
}
public void setClassLoader(ClassLoader cl) {
this.cl = cl;
}
public void setResourceLoader(org.springframework.core.io.ResourceLoader springLoader) {
this.cl = springLoader.getClassLoader();
}
/**
* ��ʼ��loader�����趨loader���ڵ�<code>ResourceLoadingService</code>��ʵ����
*/
public void init(ResourceLoadingService resourceLoadingService) {
if (cl == null) {
cl = getClass().getClassLoader();
}
}
public Resource getResource(ResourceLoaderContext context, Set<ResourceLoadingOption> options) {
String resourceName = context.substitute(EMPTY_STRING);
if (resourceName.startsWith("/")) {
resourceName = resourceName.substring(1);
}
URL resourceURL = cl.getResource(resourceName);
if (resourceURL != null) {
return new URLResource(resourceURL);
} else {
return null;
}
}
@Override
public String toString() {
return getClass().getSimpleName() + "[" + cl + "]";
}
}