1 /* 2 * Copyright (c) 1997, 2013, 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 AbstractReferenceFinderImpl( DOMForest _parent )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 */ findExternalResource( String nsURI, String localName, Attributes atts)71 protected abstract String findExternalResource( String nsURI, String localName, Attributes atts); 72 73 @Override startElement(String namespaceURI, String localName, String qName, Attributes atts)74 public void startElement(String namespaceURI, String localName, String qName, Attributes atts) 75 throws SAXException { 76 super.startElement(namespaceURI, localName, qName, atts); 77 78 String relativeRef = findExternalResource(namespaceURI,localName,atts); 79 if(relativeRef==null) return; // non found 80 81 try { 82 // absolutize URL. 83 assert locator != null; 84 String lsi = locator.getSystemId(); 85 String ref; 86 if (lsi.startsWith("jar:")) { 87 int bangIdx = lsi.indexOf('!'); 88 if (bangIdx > 0) { 89 ref = new URL(new URL(lsi), relativeRef).toString(); 90 } else 91 ref = relativeRef; 92 } else 93 ref = new URI(lsi).resolve(new URI(relativeRef)).toString(); 94 95 // then parse this schema as well, 96 // but don't mark this document as a root. 97 parent.parse(ref,false); 98 } catch( URISyntaxException e ) { 99 SAXParseException spe = new SAXParseException2( 100 WsdlMessages.ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(relativeRef,e.getMessage()), 101 locator, e ); 102 103 fatalError(spe); 104 throw spe; 105 } catch( IOException e ) { 106 SAXParseException spe = new SAXParseException2( 107 WsdlMessages.ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(relativeRef,e.getMessage()), 108 locator, e ); 109 110 fatalError(spe); 111 throw spe; 112 } 113 } 114 115 private Locator locator; 116 117 @Override setDocumentLocator(Locator locator)118 public void setDocumentLocator(Locator locator) { 119 super.setDocumentLocator(locator); 120 this.locator = locator; 121 } 122 } 123