355 lines
9.8 KiB
Java
355 lines
9.8 KiB
Java
/* DomLSSerializer.java --
|
|
Copyright (C) 1999,2000,2001 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.dom.ls;
|
|
|
|
import java.io.File;
|
|
import java.io.FileOutputStream;
|
|
import java.io.IOException;
|
|
import java.io.OutputStream;
|
|
import java.io.StringWriter;
|
|
import java.io.Writer;
|
|
import java.net.HttpURLConnection;
|
|
import java.net.MalformedURLException;
|
|
import java.net.URL;
|
|
import java.net.URLConnection;
|
|
import java.util.Arrays;
|
|
import java.util.List;
|
|
import org.w3c.dom.DOMConfiguration;
|
|
import org.w3c.dom.DOMException;
|
|
import org.w3c.dom.DOMStringList;
|
|
import org.w3c.dom.Node;
|
|
import org.w3c.dom.ls.LSException;
|
|
import org.w3c.dom.ls.LSOutput;
|
|
import org.w3c.dom.ls.LSSerializer;
|
|
import org.w3c.dom.ls.LSSerializerFilter;
|
|
import org.w3c.dom.traversal.NodeFilter;
|
|
import gnu.xml.dom.DomDOMException;
|
|
import gnu.xml.transform.StreamSerializer;
|
|
|
|
/**
|
|
* Serialize a DOM node to a stream.
|
|
*
|
|
* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
|
|
*/
|
|
public class DomLSSerializer
|
|
extends StreamSerializer
|
|
implements LSSerializer, DOMConfiguration, DOMStringList
|
|
{
|
|
|
|
private static final List SUPPORTED_PARAMETERS =
|
|
Arrays.asList(new String[] {"discard-default-content",
|
|
"xml-declaration"});
|
|
|
|
private LSSerializerFilter filter;
|
|
private StreamSerializer serializer;
|
|
|
|
public DomLSSerializer()
|
|
{
|
|
super();
|
|
discardDefaultContent = true;
|
|
}
|
|
|
|
// -- LSSerializer --
|
|
|
|
public DOMConfiguration getDomConfig()
|
|
{
|
|
return this;
|
|
}
|
|
|
|
public String getNewLine()
|
|
{
|
|
return eol;
|
|
}
|
|
|
|
public void setNewLine(String newLine)
|
|
{
|
|
if (newLine == null)
|
|
{
|
|
newLine = System.getProperty("line.separator");
|
|
}
|
|
eol = newLine;
|
|
}
|
|
|
|
public LSSerializerFilter getFilter()
|
|
{
|
|
return filter;
|
|
}
|
|
|
|
public void setFilter(LSSerializerFilter filter)
|
|
{
|
|
this.filter = filter;
|
|
}
|
|
|
|
public boolean write(Node node, LSOutput output)
|
|
throws LSException
|
|
{
|
|
OutputStream out = output.getByteStream();
|
|
try
|
|
{
|
|
if (out == null)
|
|
{
|
|
String systemId = output.getSystemId();
|
|
try
|
|
{
|
|
URL url = new URL(systemId);
|
|
URLConnection connection = url.openConnection();
|
|
connection.setDoOutput(true);
|
|
if (connection instanceof HttpURLConnection)
|
|
{
|
|
((HttpURLConnection) connection).setRequestMethod("PUT");
|
|
}
|
|
out = connection.getOutputStream();
|
|
}
|
|
catch (MalformedURLException e)
|
|
{
|
|
File file = new File(systemId);
|
|
out = new FileOutputStream(file);
|
|
}
|
|
}
|
|
serialize(node, out);
|
|
out.flush();
|
|
return true;
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
throw new DomLSException(LSException.SERIALIZE_ERR, e);
|
|
}
|
|
}
|
|
|
|
public boolean writeToURI(Node node, String uri)
|
|
throws LSException
|
|
{
|
|
LSOutput output = new DomLSOutput();
|
|
output.setSystemId(uri);
|
|
return write(node, output);
|
|
}
|
|
|
|
public String writeToString(Node node)
|
|
throws DOMException, LSException
|
|
{
|
|
Writer writer = new StringWriter();
|
|
LSOutput output = new DomLSOutput();
|
|
output.setCharacterStream(writer);
|
|
write(node, output);
|
|
return writer.toString();
|
|
}
|
|
|
|
public void serialize(Node node, OutputStream out)
|
|
throws IOException
|
|
{
|
|
if (filter == null)
|
|
{
|
|
super.serialize(node, out);
|
|
}
|
|
else
|
|
{
|
|
int wts = filter.getWhatToShow();
|
|
if (wts != NodeFilter.SHOW_ALL)
|
|
{
|
|
switch (node.getNodeType())
|
|
{
|
|
case Node.ATTRIBUTE_NODE:
|
|
if ((wts & NodeFilter.SHOW_ATTRIBUTE) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.TEXT_NODE:
|
|
if ((wts & NodeFilter.SHOW_TEXT) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.ELEMENT_NODE:
|
|
if ((wts & NodeFilter.SHOW_ELEMENT) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.CDATA_SECTION_NODE:
|
|
if ((wts & NodeFilter.SHOW_CDATA_SECTION) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.COMMENT_NODE:
|
|
if ((wts & NodeFilter.SHOW_COMMENT) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.DOCUMENT_NODE:
|
|
if ((wts & NodeFilter.SHOW_DOCUMENT) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.DOCUMENT_TYPE_NODE:
|
|
if ((wts & NodeFilter.SHOW_DOCUMENT_TYPE) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.PROCESSING_INSTRUCTION_NODE:
|
|
if ((wts & NodeFilter.SHOW_PROCESSING_INSTRUCTION) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.DOCUMENT_FRAGMENT_NODE:
|
|
if ((wts & NodeFilter.SHOW_DOCUMENT_FRAGMENT) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.ENTITY_NODE:
|
|
if ((wts & NodeFilter.SHOW_ENTITY) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.ENTITY_REFERENCE_NODE:
|
|
if ((wts & NodeFilter.SHOW_ENTITY_REFERENCE) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
case Node.NOTATION_NODE:
|
|
if ((wts & NodeFilter.SHOW_NOTATION) == 0)
|
|
{
|
|
super.serialize(node, out);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
switch (filter.acceptNode(node))
|
|
{
|
|
case NodeFilter.FILTER_ACCEPT:
|
|
super.serialize(node, out);
|
|
break;
|
|
case NodeFilter.FILTER_REJECT:
|
|
break;
|
|
case NodeFilter.FILTER_SKIP:
|
|
Node first = node.getFirstChild();
|
|
if (first != null)
|
|
{
|
|
serialize(first, out);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// -- DOMConfiguration --
|
|
|
|
public void setParameter(String name, Object value)
|
|
throws DOMException
|
|
{
|
|
if ("discard-default-content".equals(name))
|
|
{
|
|
discardDefaultContent = "true".equals(value.toString());
|
|
}
|
|
else if ("xml-declaration".equals(name))
|
|
{
|
|
xmlDeclaration = "false".equals(value.toString());
|
|
}
|
|
else
|
|
{
|
|
throw new DomDOMException(DOMException.NOT_SUPPORTED_ERR);
|
|
}
|
|
}
|
|
|
|
public Object getParameter(String name)
|
|
throws DOMException
|
|
{
|
|
if ("discard-default-content".equals(name))
|
|
{
|
|
return discardDefaultContent ? "true" : "false";
|
|
}
|
|
else if ("xml-declaration".equals(name))
|
|
{
|
|
return xmlDeclaration ? "true" : "false";
|
|
}
|
|
else
|
|
{
|
|
throw new DomDOMException(DOMException.NOT_SUPPORTED_ERR);
|
|
}
|
|
}
|
|
|
|
public boolean canSetParameter(String name, Object value)
|
|
{
|
|
return contains(name);
|
|
}
|
|
|
|
public DOMStringList getParameterNames()
|
|
{
|
|
return this;
|
|
}
|
|
|
|
// -- DOMStringList --
|
|
|
|
public String item(int i)
|
|
{
|
|
return (String) SUPPORTED_PARAMETERS.get(i);
|
|
}
|
|
|
|
public int getLength()
|
|
{
|
|
return SUPPORTED_PARAMETERS.size();
|
|
}
|
|
|
|
public boolean contains(String str)
|
|
{
|
|
return SUPPORTED_PARAMETERS.contains(str);
|
|
}
|
|
|
|
}
|
|
|