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/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: XhtmlDocument.java 6489 2008-11-28 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.xhtml;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.pentaho.reporting.libraries.base.util.IOUtils;
/**
* Creation-Date: 03.01.2006, 14:08:39
*
* @author Thomas Morgner
*/
public class XhtmlDocument implements Serializable
{
private transient Document document;
private transient byte[] data;
private URL source;
private transient boolean hasErrors;
public XhtmlDocument(final URL source,
final byte[] data,
final Document document)
{
if (source == null)
{
throw new NullPointerException();
}
this.data = data;
this.source = source;
this.document = document;
}
protected byte[] getData()
{
if (data == null)
{
try
{
final ByteArrayOutputStream bout = new ByteArrayOutputStream();
final InputStream inputStream = source.openStream();
IOUtils.getInstance().copyStreams(inputStream, bout);
data = bout.toByteArray();
}
catch (IOException e)
{
data = new byte[0];
}
}
return data;
}
public URL getSource()
{
return source;
}
public Document getDocument()
{
if (hasErrors)
{
return null;
}
if (document == null)
{
try
{
final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
final DocumentBuilder db = dbf.newDocumentBuilder();
final InputSource is = new InputSource(new ByteArrayInputStream(getData()));
final Document doc = db.parse(is);
//doc.setDocumentURI(source.toExternalForm());
return doc;
}
catch (Exception ioe)
{
document = null;
hasErrors = true;
}
}
return document;
}
}
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