/*
* Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
*
* This software is open source.
* See the bottom of this file for the licence.
*/
package org.dom4j.io;
import java.io.
IOException;
import java.io.
Reader;
import java.io.
StringReader;
import java.io.
StringWriter;
import org.dom4j.
Document;
import org.xml.sax.
InputSource;
/**
* <p>
* <code>DocumentInputSource</code> implements a SAX {@link InputSource}for a
* {@link Document}.
* </p>
*
* @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a>
* @version $Revision: 1.8 $
*/
class
DocumentInputSource extends
InputSource {
/** The document source */
private
Document document;
public
DocumentInputSource() {
}
public
DocumentInputSource(
Document document) {
this.
document =
document;
setSystemId(
document.
getName());
}
// Properties
// -------------------------------------------------------------------------
/**
* DOCUMENT ME!
*
* @return the document which is being used as the SAX {@link InputSource}
*/
public
Document getDocument() {
return
document;
}
/**
* Sets the document used as the SAX {@link InputSource}
*
* @param document
* DOCUMENT ME!
*/
public void
setDocument(
Document document) {
this.
document =
document;
setSystemId(
document.
getName());
}
// Overloaded methods
// -------------------------------------------------------------------------
/**
* This method is not supported as this source is always a {@linkDocument}
* instance.
*
* @param characterStream
* DOCUMENT ME!
*
* @throws UnsupportedOperationException
* as this method is unsupported
*/
public void
setCharacterStream(
Reader characterStream)
throws
UnsupportedOperationException {
throw new
UnsupportedOperationException();
}
/**
* Note this method is quite inefficent, it turns the in memory XML tree
* object model into a single block of text which can then be read by other
* XML parsers. Should only be used with care.
*
* @return DOCUMENT ME!
*/
public
Reader getCharacterStream() {
try {
StringWriter out = new
StringWriter();
XMLWriter writer = new
XMLWriter(
out);
writer.
write(
document);
writer.
flush();
return new
StringReader(
out.
toString());
} catch (final
IOException e) {
// this should never really happen
// but for completeness we'll return a Reader
// with the embedded exception inside it
return new
Reader() {
public int
read(char[]
ch, int
offset, int
length)
throws
IOException {
throw
e;
}
public void
close() throws
IOException {
}
};
}
}
}
/*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and
* notices. Redistributions must also contain a copy of this document.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name "DOM4J" must not be used to endorse or promote products derived
* from this Software without prior written permission of MetaStuff, Ltd. For
* written permission, please contact dom4j-info@metastuff.com.
*
* 4. Products derived from this Software may not be called "DOM4J" nor may
* "DOM4J" appear in their names without prior written permission of MetaStuff,
* Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
*
* 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
*
* THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
*/