/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.relaxng;
import com.caucho.vfs.Path;
import com.caucho.vfs.ReadStream;
import com.caucho.vfs.Vfs;
import com.caucho.xml.Xml;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* JARV verifier implementation
*/
abstract public class Verifier {
private static final Logger log
= Logger.getLogger(Verifier.class.getName());
/**
* Set the error handler.
*/
abstract public void setErrorHandler(ErrorHandler handler);
/**
* Creates a verifier handler from the verifier.
*/
abstract public VerifierHandler getVerifierHandler();
/**
* Returns a verifier filter.
*/
public VerifierFilter getVerifierFilter()
{
return new VerifierFilter(this);
}
/**
* Verifies a file.
*/
public boolean verify(String url)
throws IOException, SAXException
{
Path path = Vfs.lookup(url);
ReadStream is = path.openRead();
try {
Xml xml = new Xml();
VerifierHandler handler = getVerifierHandler();
xml.setContentHandler(handler);
xml.parse(is);
return handler.isValid();
} finally {
is.close();
}
}
/**
* Sends an error.
*/
public void error(SAXParseException e)
throws SAXException
{
log.log(Level.FINE, e.toString(), e);
}
}