1 /*
2 * Copyright 2007 The Kuali Foundation
3 *
4 * Licensed under the Educational Community License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.opensource.org/licenses/ecl2.php
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.kuali.ole.exception;
18
19 import org.slf4j.Logger;
20 import org.slf4j.LoggerFactory;
21
22 import org.xml.sax.ErrorHandler;
23 import org.xml.sax.SAXParseException;
24
25 /**
26 * Defines exception-handling for the XML parses
27 */
28 public class XmlErrorHandler implements ErrorHandler {
29 // TODO: need to use SLF4j here.
30 private static Logger LOG = LoggerFactory.getLogger(XmlErrorHandler.class);
31 /**
32 *
33 * Default constructor.
34 */
35 public XmlErrorHandler() {
36 }
37
38 /**
39 * This method displays the warning message for SAXParseException
40 * @param e
41 */
42 public void warning(SAXParseException e) {
43 String parseMessage = assembleMessage("warning", e);
44 LOG.error(parseMessage);
45 throw new ParseException(parseMessage, e);
46 }
47
48 /**
49 * This method displays the SAXParseException error.
50 * @param e
51 */
52 public void error(SAXParseException e) {
53 String parseMessage = assembleMessage("error", e);
54 LOG.error(parseMessage);
55 throw new ParseException(parseMessage, e);
56 }
57
58 /**
59 * This method displays the SAXParseException fatalError.
60 * @param e
61 */
62 public void fatalError(SAXParseException e) {
63 String parseMessage = assembleMessage("fatal error", e);
64 LOG.error(parseMessage);
65 throw new ParseException(parseMessage, e);
66 }
67
68 /**
69 * This method assemble the error message and error line numbers
70 * @param messageType
71 * @param e
72 * @return String
73 */
74 private String assembleMessage(String messageType, SAXParseException e) {
75 StringBuffer message = new StringBuffer(messageType);
76 message.append(" Parsing error was encountered on line ");
77 message.append(e.getLineNumber());
78 message.append(", column ");
79 message.append(e.getColumnNumber());
80 message.append(": ");
81 message.append(e.getMessage());
82
83 return message.toString();
84 }
85 }