fr.opensagres.xdocreport.template.velocity.VelocityFieldsExtractor Maven / Gradle / Ivy
/**
* Copyright (C) 2011-2012 The XDocReport Team
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fr.opensagres.xdocreport.template.velocity;
import java.io.Reader;
import org.apache.velocity.runtime.RuntimeSingleton;
import org.apache.velocity.runtime.parser.ParseException;
import org.apache.velocity.runtime.parser.node.SimpleNode;
import fr.opensagres.xdocreport.core.XDocReportException;
import fr.opensagres.xdocreport.template.FieldsExtractor;
import fr.opensagres.xdocreport.template.velocity.internal.ExtractVariablesVelocityVisitor;
public class VelocityFieldsExtractor
{
private static final VelocityFieldsExtractor INSTANCE = new VelocityFieldsExtractor();
public static VelocityFieldsExtractor getInstance()
{
return INSTANCE;
}
public void extractFields( Reader reader, String entryName, FieldsExtractor extractor )
throws XDocReportException
{
try
{
SimpleNode document = RuntimeSingleton.parse( reader, entryName );
ExtractVariablesVelocityVisitor visitor = new ExtractVariablesVelocityVisitor( extractor );
visitor.setContext( null );
document.jjtAccept( visitor, null );
}
catch ( ParseException e )
{
throw new XDocReportException( e );
}
}
}