01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.relaxng;
31:
32: import com.caucho.vfs.Path;
33: import com.caucho.vfs.ReadStream;
34: import com.caucho.vfs.Vfs;
35: import com.caucho.xml.Xml;
36:
37: import org.xml.sax.ErrorHandler;
38: import org.xml.sax.SAXException;
39: import org.xml.sax.SAXParseException;
40:
41: import java.io.IOException;
42: import java.util.logging.Level;
43: import java.util.logging.Logger;
44:
45: /**
46: * JARV verifier implementation
47: */
48: abstract public class Verifier {
49: private static final Logger log = Logger.getLogger(Verifier.class
50: .getName());
51:
52: /**
53: * Set the error handler.
54: */
55: abstract public void setErrorHandler(ErrorHandler handler);
56:
57: /**
58: * Creates a verifier handler from the verifier.
59: */
60: abstract public VerifierHandler getVerifierHandler();
61:
62: /**
63: * Returns a verifier filter.
64: */
65: public VerifierFilter getVerifierFilter() {
66: return new VerifierFilter(this );
67: }
68:
69: /**
70: * Verifies a file.
71: */
72: public boolean verify(String url) throws IOException, SAXException {
73: Path path = Vfs.lookup(url);
74:
75: ReadStream is = path.openRead();
76:
77: try {
78: Xml xml = new Xml();
79:
80: VerifierHandler handler = getVerifierHandler();
81:
82: xml.setContentHandler(handler);
83:
84: xml.parse(is);
85:
86: return handler.isValid();
87: } finally {
88: is.close();
89: }
90: }
91:
92: /**
93: * Sends an error.
94: */
95: public void error(SAXParseException e) throws SAXException {
96: log.log(Level.FINE, e.toString(), e);
97: }
98: }
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