CatalogResolverImpl.java revision 925:7b69a75155a2 
1/*
2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25package javax.xml.catalog;
26
27import java.io.StringReader;
28import java.util.Iterator;
29import org.xml.sax.InputSource;
30
31/**
32 * A SAX EntityResolver/JAXP URIResolver that uses catalogs.
33 *
34 * <p>
35 * This class implements both a SAX EntityResolver and a JAXP URIResolver.
36 *
37 *
38 * @since 9
39 */
40final class CatalogResolverImpl implements CatalogResolver {
41    Catalog catalog;
42
43    /**
44     * Construct an instance of the CatalogResolver from a Catalog.
45     *
46     * @param catalog A Catalog.
47     */
48    public CatalogResolverImpl(Catalog catalog) {
49        this.catalog = catalog;
50    }
51
52    @Override
53    public InputSource resolveEntity(String publicId, String systemId) {
54        //Normalize publicId and systemId
55        systemId = Normalizer.normalizeURI(Util.getNotNullOrEmpty(systemId));
56        publicId = Normalizer.normalizePublicId(Normalizer.decodeURN(Util.getNotNullOrEmpty(publicId)));
57
58        //check whether systemId is an urn
59        if (systemId != null && systemId.startsWith(Util.URN)) {
60            systemId = Normalizer.decodeURN(systemId);
61            if (publicId != null && !publicId.equals(systemId)) {
62                systemId = null;
63            } else {
64                publicId = systemId;
65                systemId = null;
66            }
67        }
68
69        CatalogImpl c = (CatalogImpl)catalog;
70        String resolvedSystemId = Util.resolve(c, publicId, systemId);
71
72        if (resolvedSystemId != null) {
73            return new InputSource(resolvedSystemId);
74        }
75
76        GroupEntry.ResolveType resolveType = ((CatalogImpl) catalog).getResolve();
77        switch (resolveType) {
78            case IGNORE:
79                return new InputSource(new StringReader(""));
80            case STRICT:
81                CatalogMessages.reportError(CatalogMessages.ERR_NO_MATCH,
82                        new Object[]{publicId, systemId});
83        }
84
85        //no action, allow the parser to continue
86        return null;
87    }
88
89}
90