src/share/jaxws_classes/com/sun/tools/internal/ws/wsdl/parser/AbstractReferenceFinderImpl.java

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1 /*
2 * Copyright (c) 1997, 2010, 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
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.tools.internal.ws.wsdl.parser;
27
28 import com.sun.istack.internal.SAXParseException2;
29 import com.sun.tools.internal.ws.resources.WsdlMessages;
30 import org.xml.sax.Attributes;
31 import org.xml.sax.Locator;
32 import org.xml.sax.SAXException;
33 import org.xml.sax.SAXParseException;
34 import org.xml.sax.helpers.XMLFilterImpl;
35
36 import java.io.IOException;
37 import java.net.URI;
38 import java.net.URISyntaxException;
39 import java.net.URL;
40
41 /**
42 * XMLFilter that finds references to other schema files from
43 * SAX events.
44 *
45 * This implementation is a base implementation for typical case
46 * where we just need to look for a particular attribute which
47 * contains an URL to another schema file.
48 *
49 * @author
50 * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
51 * Vivek Pandey
52 */
53 public abstract class AbstractReferenceFinderImpl extends XMLFilterImpl {
54 protected final DOMForest parent;
55
56 protected AbstractReferenceFinderImpl( DOMForest _parent ) {
57 this.parent = _parent;
58 }
59
60 /**
61 * IF the given element contains a reference to an external resource,
62 * return its URL.
63 *
64 * @param nsURI
65 * Namespace URI of the current element
66 * @param localName
67 * Local name of the current element
68 * @return
69 * It's OK to return a relative URL.
70 */
71 protected abstract String findExternalResource( String nsURI, String localName, Attributes atts);
72
73 public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
74 throws SAXException {
75 super.startElement(namespaceURI, localName, qName, atts);
76
77 String relativeRef = findExternalResource(namespaceURI,localName,atts);
78 if(relativeRef==null) return; // non found
79
80 try {
81 // absolutize URL.
82 String lsi = locator.getSystemId();
83 String ref;
84 if (lsi.startsWith("jar:")) {
85 int bangIdx = lsi.indexOf('!');
86 if (bangIdx > 0) {
87 ref = new URL(new URL(lsi), relativeRef).toString();
88 } else
89 ref = relativeRef;
90 } else
91 ref = new URI(lsi).resolve(new URI(relativeRef)).toString();
92
93 // then parse this schema as well,
94 // but don't mark this document as a root.
95 parent.parse(ref,false);
96 } catch( URISyntaxException e ) {
97 SAXParseException spe = new SAXParseException2(
98 WsdlMessages.ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(relativeRef,e.getMessage()),
99 locator, e );
100
101 fatalError(spe);
102 throw spe;
103 } catch( IOException e ) {
104 SAXParseException spe = new SAXParseException2(
105 WsdlMessages.ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(relativeRef,e.getMessage()),
106 locator, e );
107
108 fatalError(spe);
109 throw spe;
110 }
111 }
112
113 private Locator locator;
114
115 public void setDocumentLocator(Locator locator) {
116 super.setDocumentLocator(locator);
117 this.locator = locator;
118 }
119 }

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