Xml Utils for dom4j
//package jomm.utils;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.*;
import org.xml.sax.InputSource;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXParseException;
import org.xml.sax.SAXException;
import javax.xml.transform.*;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import java.util.Map;
import java.util.Hashtable;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.net.HttpURLConnection;
/**
* @author Jorge Machado
* @date 6/Nov/2009
* @time 23:39:18
* @email machadofisher@gmail.com
*/
public class XmlUtils {
public static String escape(String text)
{
if(text == null)
return null;
StringBuilder stringBuilder = new StringBuilder();
for(int i=0;i<text.length();i++)
{
if (text.charAt(i) == '<')
{
stringBuilder.append("<");
}
else if (text.charAt(i) == '>')
{
stringBuilder.append(">");
}
else if (text.charAt(i) == '&')
{
stringBuilder.append("&");
}
else
{
stringBuilder.append(text.charAt(i));
}
}
return stringBuilder.toString();
}
public static Document styleDocument(Document document,String stylesheet,boolean xslInPath, Map<String,Object> parameters) throws Exception {
Transformer transformer = XmlUtils.getTransformer(stylesheet,xslInPath);
if(parameters != null)
{
for(Map.Entry<String,Object> entry: parameters.entrySet())
{
transformer.setParameter(entry.getKey(),entry.getValue());
}
}
// now lets style the given document
DocumentSource source = new DocumentSource( document );
DocumentResult result = new DocumentResult();
transformer.transform( source, result );
// return the transformed document
return result.getDocument();
}
public static void styleDocument(Document document,String stylesheet,boolean xslInPath, Map<String,Object> parameters, OutputStream out) throws Exception {
Transformer transformer = XmlUtils.getTransformer(stylesheet,xslInPath);
if(parameters != null)
{
for(Map.Entry<String,Object> entry: parameters.entrySet())
{
transformer.setParameter(entry.getKey(),entry.getValue());
}
}
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION,"yes");
DocumentSource source = new DocumentSource( document );
// now lets style the given document
StreamResult sresult = new StreamResult(out);
transformer.transform(source, sresult);
}
public static void write(Document document, Writer writerStream) throws IOException {
// lets write to a file
XMLWriter writer = new XMLWriter(writerStream);
writer.write( document );
writer.close();
}
public static void write(Document document, Writer writerStream, String encoding) throws IOException {
// lets write to a file
OutputFormat ou = new OutputFormat();
ou.setEncoding(encoding);
XMLWriter writer = new XMLWriter(writerStream,ou);
writer.write( document );
writer.close();
}
private static TransformerFactory transFact = TransformerFactory.newInstance();
private static Map<String, Templates> templates =new Hashtable<String,Templates>();
private static Transformer getTransformer(String xsltFile,boolean inClassPath) throws TransformerConfigurationException, IOException
{
Templates tpl= XmlUtils.templates.get(xsltFile);
if (tpl==null)
{
InputStream stream;
if(inClassPath)
stream = Thread.currentThread().getContextClassLoader().getResourceAsStream(xsltFile);
else
stream = new FileInputStream(xsltFile);
Source xsltSource = new StreamSource(stream);
tpl = XmlUtils.transFact.newTemplates(xsltSource);
XmlUtils.templates.put(xsltFile,tpl);
}
return tpl.newTransformer();
}
public static Document parse(InputSource source) throws DocumentException, MalformedURLException {
SAXReader reader = new SAXReader();
XmlUtils.createIgnoreErrorHandler(reader);
return reader.read(source);
}
public static Document parse(InputStream stream, String encoding) throws DocumentException, MalformedURLException {
InputSource inputSource = new InputSource(stream);
inputSource.setEncoding(encoding);
SAXReader reader = new SAXReader();
XmlUtils.createIgnoreErrorHandler(reader);
return reader.read(inputSource);
}
public static Document parse(InputStream stream) throws DocumentException, MalformedURLException {
InputSource inputSource = new InputSource(stream);
SAXReader reader = new SAXReader();
XmlUtils.createIgnoreErrorHandler(reader);
return reader.read(inputSource);
}
public static void writeSout(Document document) throws IOException
{
// Compact format to System.out
OutputFormat format = OutputFormat.createCompactFormat();
XMLWriter writer = new XMLWriter( System.out, format );
writer.write( document );
}
public static Document parse(String xml) throws DocumentException
{
SAXReader reader = new SAXReader();
XmlUtils.createIgnoreErrorHandler(reader);
return reader.read(new StringReader(xml));
}
public static Document parse(URL url) throws DocumentException, IOException {
URLConnection urlConnection;
DataInputStream inStream;
urlConnection = url.openConnection();
((HttpURLConnection) urlConnection).setRequestMethod("GET");
urlConnection.setDoInput(true);
urlConnection.setDoOutput(false);
urlConnection.setUseCaches(false);
inStream = new DataInputStream(urlConnection.getInputStream());
byte[] bytes = new byte[1024];
int read;
StringBuilder builder = new StringBuilder();
while((read = inStream.read(bytes)) >= 0)
{
String readed = new String(bytes,0,read,"UTF-8");
builder.append(readed);
}
SAXReader reader = new SAXReader();
XmlUtils.createIgnoreErrorHandler(reader);
// InputSource inputSource = new InputSource(new InputStreamReader(inStream, "UTF-8"));
// inputSource.setEncoding("UTF-8");
Document dom = reader.read(new StringReader(builder.toString()));
inStream.close();
// new InputStreamReader(Thread.currentThread().getContextClassLoader().getResourceAsStream("retrieval.xml"), "UTF-8")
return dom;
}
public static void createIgnoreErrorHandler(SAXReader reader)
{
reader.setValidation(false);
reader.setErrorHandler(new ErrorHandler()
{
public void warning(SAXParseException exception) throws SAXException {
//System.out.println(exception);
}
public void error(SAXParseException exception) throws SAXException
{
//System.out.println(exception);
}
public void fatalError(SAXParseException exception) throws SAXException
{
//System.out.println(exception);
}
});
}
public static void write(Document document,OutputStream stream) throws IOException
{
// lets write to a file
OutputFormat outputFormat = OutputFormat.createPrettyPrint();
// OutputFormat.createPrettyPrint()
outputFormat.setIndent(true);
outputFormat.setEncoding("UTF-8");
XMLWriter writer = new XMLWriter(stream,outputFormat);
writer.write( document );
writer.close();
}
}
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