2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 package com.mysql.clusterj.jdbc.antlr;
20 import org.antlr.runtime.RecognitionException;
21 import org.antlr.runtime.BaseRecognizer;
23 import java.util.List;
24 import java.util.ArrayList;
29 public class QueuingErrorListener extends BaseErrorListener implements ErrorListener {
31 private List<RecognitionException> exceptions;
32 private String[] tokenNames;
33 private StringBuilder errorBuffer;
35 public QueuingErrorListener(RecognizerErrorDelegate recognizerErrorDelegate) {
36 super(recognizerErrorDelegate);
37 exceptions = new ArrayList<RecognitionException>();
41 * Do not display any errors, but queue them up to inspect at a later stage.
42 * Useful for writing tests that look for RecognitionExceptions.
48 public void displayRecognitionError(String[] tokenNames, RecognitionException e) {
49 if (this.tokenNames == null)
50 this.tokenNames = tokenNames;
55 public void emitErrorMessage(String msg) {
56 errorBuffer.append(msg);
57 errorBuffer.append("--------------------\n");
61 public boolean hasErrors() {
62 return !exceptions.isEmpty();
66 public String toString() {
67 if (errorBuffer == null) {
68 errorBuffer = new StringBuilder();
69 for (RecognitionException e : exceptions) {
70 super.displayRecognitionError(tokenNames, e);
73 return errorBuffer.toString();
77 public List<RecognitionException> getErrors() {