1 /*
2 * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25 package javax.xml.bind.helpers;
26
27 import org.w3c.dom.Node;
28
29 import javax.xml.bind.ValidationEvent;
30 import javax.xml.bind.ValidationEventHandler;
31 import javax.xml.bind.ValidationEventLocator;
32 import java.net.URL;
33
34 /**
35 * <p>
36 * JAXB 1.0 only default validation event handler. This is the default
37 * handler for all objects created from a JAXBContext that is managing
38 * schema-derived code generated by a JAXB 1.0 binding compiler.
39 *
40 * <p>
41 * This handler causes the unmarshal and validate operations to fail on the first
42 * error or fatal error.
43 *
44 * <p>
45 * This handler is not the default handler for JAXB mapped classes following
46 * JAXB 2.0 or later versions. Default validation event handling has changed
47 * and is specified in {@link javax.xml.bind.Unmarshaller} and
48 * {@link javax.xml.bind.Marshaller}.
49 *
50 * @author <ul><li>Ryan Shoemaker, Sun Microsystems, Inc.</li></ul>
51 * @see javax.xml.bind.Unmarshaller
52 * @see javax.xml.bind.Validator
53 * @see javax.xml.bind.ValidationEventHandler
54 * @since JAXB1.0
55 */
56 public class DefaultValidationEventHandler implements ValidationEventHandler {
57
58 public boolean handleEvent( ValidationEvent event ) {
59
60 if( event == null ) {
61 throw new IllegalArgumentException();
62 }
63
64 // calculate the severity prefix and return value
65 String severity = null;
66 boolean retVal = false;
67 switch ( event.getSeverity() ) {
68 case ValidationEvent.WARNING:
69 severity = Messages.format( Messages.WARNING );
70 retVal = true; // continue after warnings
71 break;
72 case ValidationEvent.ERROR:
73 severity = Messages.format( Messages.ERROR );
74 retVal = false; // terminate after errors
75 break;
76 case ValidationEvent.FATAL_ERROR:
77 severity = Messages.format( Messages.FATAL_ERROR );
78 retVal = false; // terminate after fatal errors
79 break;
80 default:
81 assert false :
82 Messages.format( Messages.UNRECOGNIZED_SEVERITY,
83 event.getSeverity() );
84 }
85
86 // calculate the location message
87 String location = getLocation( event );
88
89 System.out.println(
90 Messages.format( Messages.SEVERITY_MESSAGE,
91 severity,
92 event.getMessage(),
93 location ) );
94
95 // fail on the first error or fatal error
96 return retVal;
97 }
98
99 /**
100 * Calculate a location message for the event
101 *
102 */
103 private String getLocation(ValidationEvent event) {
104 StringBuffer msg = new StringBuffer();
105
106 ValidationEventLocator locator = event.getLocator();
107
108 if( locator != null ) {
109
110 URL url = locator.getURL();
111 Object obj = locator.getObject();
112 Node node = locator.getNode();
113 int line = locator.getLineNumber();
114
115 if( url!=null || line!=-1 ) {
116 msg.append( "line " + line );
117 if( url!=null )
118 msg.append( " of " + url );
119 } else if( obj != null ) {
120 msg.append( " obj: " + obj.toString() );
121 } else if( node != null ) {
122 msg.append( " node: " + node.toString() );
123 }
124 } else {
125 msg.append( Messages.format( Messages.LOCATION_UNAVAILABLE ) );
126 }
127
128 return msg.toString();
129 }
130 }
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