mirror of git://gcc.gnu.org/git/gcc.git
439 lines
13 KiB
Java
439 lines
13 KiB
Java
/* TransformerFactoryImpl.java --
|
|
Copyright (C) 2004,2006 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
package gnu.xml.transform;
|
|
|
|
import java.io.FileInputStream;
|
|
import java.io.FileOutputStream;
|
|
import java.io.InputStream;
|
|
import java.io.IOException;
|
|
import java.io.OutputStream;
|
|
import java.net.URL;
|
|
import java.util.Iterator;
|
|
import java.util.LinkedHashMap;
|
|
import java.util.LinkedList;
|
|
import java.util.Map;
|
|
import java.util.Properties;
|
|
import javax.xml.transform.ErrorListener;
|
|
import javax.xml.transform.Source;
|
|
import javax.xml.transform.Templates;
|
|
import javax.xml.transform.Transformer;
|
|
import javax.xml.transform.TransformerConfigurationException;
|
|
import javax.xml.transform.TransformerException;
|
|
import javax.xml.transform.TransformerFactory;
|
|
import javax.xml.transform.URIResolver;
|
|
import javax.xml.transform.dom.DOMResult;
|
|
import javax.xml.transform.dom.DOMSource;
|
|
import javax.xml.transform.sax.SAXResult;
|
|
import javax.xml.transform.sax.SAXSource;
|
|
import javax.xml.transform.sax.SAXTransformerFactory;
|
|
import javax.xml.transform.sax.TemplatesHandler;
|
|
import javax.xml.transform.sax.TransformerHandler;
|
|
import javax.xml.transform.stream.StreamResult;
|
|
import javax.xml.transform.stream.StreamSource;
|
|
import javax.xml.xpath.XPathFactory;
|
|
import org.w3c.dom.Document;
|
|
import org.w3c.dom.Node;
|
|
import org.xml.sax.XMLFilter;
|
|
import gnu.xml.dom.DomDocument;
|
|
|
|
/**
|
|
* GNU transformer factory implementation.
|
|
*
|
|
* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
|
|
*/
|
|
public class TransformerFactoryImpl
|
|
extends SAXTransformerFactory
|
|
{
|
|
|
|
final XPathFactory xpathFactory;
|
|
final XSLURIResolver resolver;
|
|
ErrorListener userListener;
|
|
URIResolver userResolver;
|
|
|
|
public TransformerFactoryImpl()
|
|
{
|
|
xpathFactory = new gnu.xml.xpath.XPathFactoryImpl();
|
|
resolver = new XSLURIResolver();
|
|
}
|
|
|
|
public Transformer newTransformer(Source source)
|
|
throws TransformerConfigurationException
|
|
{
|
|
Stylesheet stylesheet = newStylesheet(source, 0, null);
|
|
Properties outputProperties =
|
|
new TransformerOutputProperties(stylesheet);
|
|
TransformerImpl transformer =
|
|
new TransformerImpl(this, stylesheet, outputProperties);
|
|
stylesheet.transformer = transformer;
|
|
return transformer;
|
|
}
|
|
|
|
public Transformer newTransformer()
|
|
throws TransformerConfigurationException
|
|
{
|
|
return new TransformerImpl(this, null, new Properties());
|
|
}
|
|
|
|
public Templates newTemplates(Source source)
|
|
throws TransformerConfigurationException
|
|
{
|
|
Stylesheet stylesheet = newStylesheet(source, 0, null);
|
|
return new TemplatesImpl(this, stylesheet);
|
|
}
|
|
|
|
Stylesheet newStylesheet(Source source, int precedence, Stylesheet parent)
|
|
throws TransformerConfigurationException
|
|
{
|
|
Document doc = null;
|
|
String systemId = null;
|
|
if (source != null)
|
|
{
|
|
try
|
|
{
|
|
DOMSource ds;
|
|
synchronized (resolver)
|
|
{
|
|
resolver.setUserResolver(userResolver);
|
|
resolver.setUserListener(userListener);
|
|
ds = resolver.resolveDOM(source, null, null);
|
|
}
|
|
Node node = ds.getNode();
|
|
if (node == null)
|
|
{
|
|
throw new TransformerConfigurationException("no source document");
|
|
}
|
|
doc = (node instanceof Document) ? (Document) node :
|
|
node.getOwnerDocument();
|
|
systemId = ds.getSystemId();
|
|
}
|
|
catch (TransformerException e)
|
|
{
|
|
throw new TransformerConfigurationException(e);
|
|
}
|
|
}
|
|
return new Stylesheet(this, parent, doc, systemId, precedence);
|
|
}
|
|
|
|
public Source getAssociatedStylesheet(Source source,
|
|
String media,
|
|
String title,
|
|
String charset)
|
|
throws TransformerConfigurationException
|
|
{
|
|
try
|
|
{
|
|
DOMSource ds;
|
|
synchronized (resolver)
|
|
{
|
|
resolver.setUserResolver(userResolver);
|
|
resolver.setUserListener(userListener);
|
|
ds = resolver.resolveDOM(source, null, null);
|
|
}
|
|
Node node = ds.getNode();
|
|
if (node == null)
|
|
{
|
|
throw new TransformerConfigurationException("no source document");
|
|
}
|
|
Document doc = (node instanceof Document) ? (Document) node :
|
|
node.getOwnerDocument();
|
|
LinkedList matches = new LinkedList();
|
|
for (node = doc.getFirstChild();
|
|
node != null;
|
|
node = node.getNextSibling())
|
|
{
|
|
if (node.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE &&
|
|
"xml-stylesheet".equals(node.getNodeName()))
|
|
{
|
|
Map params = parseParameters(node.getNodeValue());
|
|
if (media != null && !media.equals(params.get("media")))
|
|
{
|
|
continue;
|
|
}
|
|
if (title != null && !title.equals(params.get("title")))
|
|
{
|
|
continue;
|
|
}
|
|
if (charset != null && !charset.equals(params.get("charset")))
|
|
{
|
|
continue;
|
|
}
|
|
String href = (String) params.get("href");
|
|
URL url = resolver.resolveURL(null, node.getBaseURI(), href);
|
|
matches.add(url);
|
|
}
|
|
}
|
|
switch (matches.size())
|
|
{
|
|
case 0:
|
|
return null;
|
|
case 1:
|
|
return new StreamSource(((URL) matches.getFirst()).toString());
|
|
default:
|
|
// Create a source representing a stylesheet with a list of
|
|
// imports
|
|
DomDocument ssDoc = new DomDocument();
|
|
ssDoc.setBuilding(true);
|
|
// Create document element
|
|
Node root =
|
|
ssDoc.createElementNS(Stylesheet.XSL_NS, "stylesheet");
|
|
Node version =
|
|
ssDoc.createAttributeNS(null, "version");
|
|
version.setNodeValue("1.0");
|
|
root.getAttributes().setNamedItemNS(version);
|
|
ssDoc.appendChild(root);
|
|
// Create xsl:import for each URL
|
|
for (Iterator i = matches.iterator(); i.hasNext(); )
|
|
{
|
|
URL url = (URL) i.next();
|
|
Node imp =
|
|
ssDoc.createElementNS(Stylesheet.XSL_NS, "import");
|
|
Node href =
|
|
ssDoc.createAttributeNS(null, "href");
|
|
href.setNodeValue(url.toString());
|
|
imp.getAttributes().setNamedItemNS(href);
|
|
root.appendChild(imp);
|
|
}
|
|
ssDoc.setBuilding(false);
|
|
return new DOMSource(ssDoc);
|
|
}
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
throw new TransformerConfigurationException(e);
|
|
}
|
|
catch (TransformerException e)
|
|
{
|
|
throw new TransformerConfigurationException(e);
|
|
}
|
|
}
|
|
|
|
Map parseParameters(String data)
|
|
{
|
|
Map ret = new LinkedHashMap();
|
|
int len = data.length();
|
|
String key = null;
|
|
int start = 0;
|
|
char quoteChar = '\u0000';
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
char c = data.charAt(i);
|
|
if (quoteChar == '\u0000' && c == ' ')
|
|
{
|
|
if (key == null && start < i)
|
|
{
|
|
key = data.substring(start, i);
|
|
}
|
|
else
|
|
{
|
|
String val = unquote(data.substring(start, i).trim());
|
|
ret.put(key, val);
|
|
key = null;
|
|
}
|
|
start = i + 1;
|
|
}
|
|
else if (c == '"')
|
|
{
|
|
quoteChar = (quoteChar == c) ? '\u0000' : c;
|
|
}
|
|
else if (c == '\'')
|
|
{
|
|
quoteChar = (quoteChar == c) ? '\u0000' : c;
|
|
}
|
|
}
|
|
if (start < len && key != null)
|
|
{
|
|
String val = unquote(data.substring(start, len).trim());
|
|
ret.put(key, val);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
String unquote(String text)
|
|
{
|
|
int end = text.length() - 1;
|
|
if (text.charAt(0) == '\'' && text.charAt(end) == '\'')
|
|
{
|
|
return text.substring(1, end);
|
|
}
|
|
if (text.charAt(0) == '"' && text.charAt(end) == '"')
|
|
{
|
|
return text.substring(1, end);
|
|
}
|
|
return text;
|
|
}
|
|
|
|
public void setURIResolver(URIResolver resolver)
|
|
{
|
|
userResolver = resolver;
|
|
}
|
|
|
|
public URIResolver getURIResolver()
|
|
{
|
|
return userResolver;
|
|
}
|
|
|
|
public void setFeature(String name, boolean value)
|
|
throws TransformerConfigurationException
|
|
{
|
|
throw new TransformerConfigurationException("not supported");
|
|
}
|
|
|
|
public boolean getFeature(String name)
|
|
{
|
|
if (SAXSource.FEATURE.equals(name) ||
|
|
SAXResult.FEATURE.equals(name) ||
|
|
StreamSource.FEATURE.equals(name) ||
|
|
StreamResult.FEATURE.equals(name) ||
|
|
DOMSource.FEATURE.equals(name) ||
|
|
DOMResult.FEATURE.equals(name) ||
|
|
SAXTransformerFactory.FEATURE.equals(name))
|
|
{
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public void setAttribute(String name, Object value)
|
|
throws IllegalArgumentException
|
|
{
|
|
throw new IllegalArgumentException("not supported");
|
|
}
|
|
|
|
public Object getAttribute(String name)
|
|
throws IllegalArgumentException
|
|
{
|
|
throw new IllegalArgumentException("not supported");
|
|
}
|
|
|
|
public void setErrorListener(ErrorListener listener)
|
|
throws IllegalArgumentException
|
|
{
|
|
userListener = listener;
|
|
}
|
|
|
|
public ErrorListener getErrorListener()
|
|
{
|
|
return userListener;
|
|
}
|
|
|
|
// -- SAXTransformerFactory --
|
|
|
|
public TemplatesHandler newTemplatesHandler()
|
|
throws TransformerConfigurationException
|
|
{
|
|
return new SAXTemplatesHandler(this);
|
|
}
|
|
|
|
public TransformerHandler newTransformerHandler()
|
|
throws TransformerConfigurationException
|
|
{
|
|
Transformer transformer = newTransformer();
|
|
return new SAXTransformerHandler(this, transformer);
|
|
}
|
|
|
|
public TransformerHandler newTransformerHandler(Source source)
|
|
throws TransformerConfigurationException
|
|
{
|
|
Transformer transformer = newTransformer(source);
|
|
return new SAXTransformerHandler(this, transformer);
|
|
}
|
|
|
|
public TransformerHandler newTransformerHandler(Templates templates)
|
|
throws TransformerConfigurationException
|
|
{
|
|
Transformer transformer = templates.newTransformer();
|
|
return new SAXTransformerHandler(this, transformer);
|
|
}
|
|
|
|
public XMLFilter newXMLFilter(Source source)
|
|
throws TransformerConfigurationException
|
|
{
|
|
throw new UnsupportedOperationException();
|
|
}
|
|
|
|
public XMLFilter newXMLFilter(Templates templates)
|
|
throws TransformerConfigurationException
|
|
{
|
|
throw new UnsupportedOperationException();
|
|
}
|
|
|
|
// -- SAXTransformerFactory end --
|
|
|
|
/**
|
|
* Syntax: TransformerFactoryImpl [<stylesheet> [<input> [<output>]]]
|
|
*/
|
|
public static void main(String[] args)
|
|
throws Exception
|
|
{
|
|
InputStream stylesheet = null, in = null;
|
|
OutputStream out = null;
|
|
try
|
|
{
|
|
if (args.length > 0)
|
|
{
|
|
stylesheet = new FileInputStream(args[0]);
|
|
if (args.length > 1)
|
|
{
|
|
in = new FileInputStream(args[1]);
|
|
if (args.length > 2)
|
|
out = new FileOutputStream(args[2]);
|
|
}
|
|
}
|
|
if (in == null)
|
|
in = System.in;
|
|
if (out == null)
|
|
out = System.out;
|
|
TransformerFactory f = new TransformerFactoryImpl();
|
|
Transformer t = (stylesheet != null) ?
|
|
f.newTransformer(new StreamSource(stylesheet)) :
|
|
f.newTransformer();
|
|
t.transform(new StreamSource(in), new StreamResult(out));
|
|
}
|
|
finally
|
|
{
|
|
if (stylesheet != null)
|
|
stylesheet.close();
|
|
if (in != null && in instanceof FileInputStream)
|
|
in.close();
|
|
if (out != null && out instanceof FileOutputStream)
|
|
out.close();
|
|
}
|
|
}
|
|
|
|
}
|