/*
* Copyright (c) 2002-2012 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.toolkit.util.resourcebundle.xml;
import java.io.InputStream;
import com.alibaba.toolkit.util.resourcebundle.AbstractResourceBundleFactory;
import com.alibaba.toolkit.util.resourcebundle.ResourceBundle;
import com.alibaba.toolkit.util.resourcebundle.ResourceBundleConstant;
import com.alibaba.toolkit.util.resourcebundle.ResourceBundleCreateException;
import com.alibaba.toolkit.util.resourcebundle.ResourceBundleLoader;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.SAXReader;
/**
* 从XML文件中创建<code>ResourceBundle</code>的实例的工厂.
*
* @author Michael Zhou
* @version $Id: XMLResourceBundleFactory.java,v 1.1 2003/07/03 07:26:35 baobao
* Exp $
*/
public class XMLResourceBundleFactory extends AbstractResourceBundleFactory {
/** 创建factory, 使用当前线程的context class loader作为bundle装入器. */
public XMLResourceBundleFactory() {
super();
}
/**
* 创建factory, 使用指定的class loader作为bundle装入器.
*
* @param classLoader 装入bundle的class loader
*/
public XMLResourceBundleFactory(ClassLoader classLoader) {
super(classLoader);
}
/**
* 创建factory, 使用指定的loader作为bundle装器
*
* @param loader bundle装入器
*/
public XMLResourceBundleFactory(ResourceBundleLoader loader) {
super(loader);
}
/**
* 根据bundle的名称取得resource的文件名称.
*
* @param bundleName bundle的名称
* @return resource的名称
*/
@Override
protected String getFilename(String bundleName) {
return super.getFilename(bundleName) + ResourceBundleConstant.RB_RESOURCE_EXT_XML;
}
/**
* 以XML格式解析输入流, 并创建<code>ResourceBundle</code>.
*
* @param stream 输入流
* @param systemId 标志输入流的字符串
* @return resource bundle
* @throws ResourceBundleCreateException 如果解析失败
*/
@Override
protected ResourceBundle parse(InputStream stream, String systemId) throws ResourceBundleCreateException {
try {
SAXReader reader = new SAXReader();
Document doc = reader.read(stream, systemId);
return new XMLResourceBundle(doc);
} catch (DocumentException e) {
throw new ResourceBundleCreateException(ResourceBundleConstant.RB_FAILED_READING_XML_DOCUMENT,
new Object[] { systemId }, e);
}
}
}