com.rt.core.util.XMLURIResolver Maven / Gradle / Ivy
package com.rt.core.util;
import java.io.StringReader;
import javax.xml.transform.Source;
import javax.xml.transform.TransformerException;
import javax.xml.transform.URIResolver;
import javax.xml.transform.stream.StreamSource;
import com.rt.core.constant.RTConst;
import com.rt.core.log.Log;
/**
* 主要用于获取xsl(t)样式文件中被引用的其它样式文件
*/
public class XMLURIResolver implements URIResolver {
private static Log log = Log.getLog(XMLURIResolver.class);
/** xsl path */
private String location;
/**
* 默认构造 处理路径
*
* @param location
* xsl path
*/
public XMLURIResolver(String location) {
if (null != location) {
StringBuffer path = new StringBuffer(location);
// 如果路径中包含文件名，需要先去掉它。
if (path.lastIndexOf(RTConst.DOT) != -1) {
this.location = path.substring(0, location
.lastIndexOf(RTConst.ROOT_PATH) + 1);
// 其它情况直接在最后追加 '/'
} else {
this.location = path.append(RTConst.ROOT_PATH).toString();
}
}
}
/**
* 通过构造函数传入的路径获取被引入的模板并返回
*/
public Source resolve(String href, String base) throws TransformerException {
if (null != location) {
StringReader sr = null;
StringBuffer path = new StringBuffer(location);
path.append(href);
try {
sr = new StringReader(XMLUtil.readDocument(path.toString())
.asXML());
return new StreamSource(sr);
} catch (Exception e) {
log.error(e.toString());
}
}
return null;
}
}