/*
* RHQ Management Platform
* Copyright (C) 2010 Red Hat, Inc.
* All rights reserved.
*
* This program 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 version 2 of the License.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.server.search.antlr;
import java.util.ArrayList;
import java.util.List;
import org.antlr.runtime.NoViableAltException;
import org.antlr.runtime.RecognitionException;
import org.antlr.runtime.Token;
import org.antlr.runtime.TokenStream;
import org.antlr.runtime.tree.CommonTreeAdaptor;
/**
* @author Joseph Marques
*/
public class RHQLNodeAdaptor extends CommonTreeAdaptor {
List<String> errorMessages = new ArrayList<String>();
@Override
public Object create(Token payload) {
return new RHQLNode(payload);
}
@Override
public Object errorNode(TokenStream input, Token start, Token stop, RecognitionException e) {
if (e instanceof NoViableAltException) {
NoViableAltException noAlt = (NoViableAltException) e;
String description = noAlt.grammarDecisionDescription;
int position = noAlt.index;
errorMessages.add(description + ":" + position);
}
return super.errorNode(input, start, stop, e);
}
public List<String> getErrorMessages() {
return errorMessages;
}
}