001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common Development
008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
012: * language governing permissions and limitations under the License.
013: *
014: * When distributing the software, include this License Header Notice in each
015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016: * Sun designates this particular file as subject to the "Classpath" exception
017: * as provided by Sun in the GPL Version 2 section of the License file that
018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
020: * identifying information: "Portions Copyrighted [year]
021: * [name of copyright owner]"
022: *
023: * Contributor(s):
024: *
025: * If you wish your version of this file to be governed by only the CDDL or
026: * only the GPL Version 2, indicate your decision by adding "[Contributor]
027: * elects to include this software in this distribution under the [CDDL or GPL
028: * Version 2] license." If you don't indicate a single choice of license, a
029: * recipient has the option to distribute your version of this file under
030: * either the CDDL, the GPL Version 2 or to extend the choice of license to
031: * its licensees as provided above. However, if you add GPL Version 2 code
032: * and therefore, elected the GPL Version 2 license, then the option applies
033: * only if the new code is made subject to such option by the copyright
034: * holder.
035: */
036:
037: package com.sun.tools.ws.wsdl.parser;
038:
039: import com.sun.istack.SAXParseException2;
040: import com.sun.tools.ws.resources.WsdlMessages;
041: import org.xml.sax.Attributes;
042: import org.xml.sax.Locator;
043: import org.xml.sax.SAXException;
044: import org.xml.sax.SAXParseException;
045: import org.xml.sax.helpers.XMLFilterImpl;
046:
047: import java.io.IOException;
048: import java.net.URI;
049: import java.net.URISyntaxException;
050:
051: /**
052: * XMLFilter that finds references to other schema files from
053: * SAX events.
054: *
055: * This implementation is a base implementation for typical case
056: * where we just need to look for a particular attribute which
057: * contains an URL to another schema file.
058: *
059: * @author
060: * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
061: * Vivek Pandey
062: */
063: public abstract class AbstractReferenceFinderImpl extends XMLFilterImpl {
064: protected final DOMForest parent;
065:
066: protected AbstractReferenceFinderImpl(DOMForest _parent) {
067: this .parent = _parent;
068: }
069:
070: /**
071: * IF the given element contains a reference to an external resource,
072: * return its URL.
073: *
074: * @param nsURI
075: * Namespace URI of the current element
076: * @param localName
077: * Local name of the current element
078: * @return
079: * It's OK to return a relative URL.
080: */
081: protected abstract String findExternalResource(String nsURI,
082: String localName, Attributes atts);
083:
084: public void startElement(String namespaceURI, String localName,
085: String qName, Attributes atts) throws SAXException {
086: super .startElement(namespaceURI, localName, qName, atts);
087:
088: String relativeRef = findExternalResource(namespaceURI,
089: localName, atts);
090: if (relativeRef == null)
091: return; // non found
092:
093: try {
094: // absolutize URL.
095: String ref = new URI(locator.getSystemId()).resolve(
096: new URI(relativeRef)).toString();
097:
098: // then parse this schema as well,
099: // but don't mark this document as a root.
100: parent.parse(ref, false);
101: } catch (URISyntaxException e) {
102: SAXParseException spe = new SAXParseException2(WsdlMessages
103: .ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(
104: relativeRef, e.getMessage()), locator, e);
105:
106: fatalError(spe);
107: throw spe;
108: } catch (IOException e) {
109: SAXParseException spe = new SAXParseException2(WsdlMessages
110: .ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(
111: relativeRef, e.getMessage()), locator, e);
112:
113: fatalError(spe);
114: throw spe;
115: }
116: }
117:
118: private Locator locator;
119:
120: public void setDocumentLocator(Locator locator) {
121: super.setDocumentLocator(locator);
122: this.locator = locator;
123: }
124: }
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