ohair@286: /*
alanb@368:  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
ohair@286:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286:  *
ohair@286:  * This code is free software; you can redistribute it and/or modify it
ohair@286:  * under the terms of the GNU General Public License version 2 only, as
ohair@286:  * published by the Free Software Foundation.  Oracle designates this
ohair@286:  * particular file as subject to the "Classpath" exception as provided
ohair@286:  * by Oracle in the LICENSE file that accompanied this code.
ohair@286:  *
ohair@286:  * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ohair@286:  * version 2 for more details (a copy is included in the LICENSE file that
ohair@286:  * accompanied this code).
ohair@286:  *
ohair@286:  * You should have received a copy of the GNU General Public License version
ohair@286:  * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286:  *
ohair@286:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286:  * or visit www.oracle.com if you need additional information or have any
ohair@286:  * questions.
ohair@286:  */
ohair@286: 
ohair@286: package com.sun.tools.internal.ws.wsdl.parser;
ohair@286: 
ohair@286: import com.sun.istack.internal.SAXParseException2;
ohair@286: import com.sun.tools.internal.ws.resources.WsdlMessages;
ohair@286: import org.xml.sax.Attributes;
ohair@286: import org.xml.sax.Locator;
ohair@286: import org.xml.sax.SAXException;
ohair@286: import org.xml.sax.SAXParseException;
ohair@286: import org.xml.sax.helpers.XMLFilterImpl;
ohair@286: 
ohair@286: import java.io.IOException;
ohair@286: import java.net.URI;
ohair@286: import java.net.URISyntaxException;
ohair@286: import java.net.URL;
ohair@286: 
ohair@286: /**
ohair@286:  * XMLFilter that finds references to other schema files from
ohair@286:  * SAX events.
ohair@286:  *
ohair@286:  * This implementation is a base implementation for typical case
ohair@286:  * where we just need to look for a particular attribute which
ohair@286:  * contains an URL to another schema file.
ohair@286:  *
ohair@286:  * @author
ohair@286:  *  Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
ohair@286:  *  Vivek Pandey
ohair@286:  */
ohair@286: public abstract class AbstractReferenceFinderImpl extends XMLFilterImpl {
ohair@286:     protected final DOMForest parent;
ohair@286: 
ohair@286:     protected AbstractReferenceFinderImpl( DOMForest _parent ) {
ohair@286:         this.parent = _parent;
ohair@286:     }
ohair@286: 
ohair@286:     /**
ohair@286:      * IF the given element contains a reference to an external resource,
ohair@286:      * return its URL.
ohair@286:      *
ohair@286:      * @param nsURI
ohair@286:      *      Namespace URI of the current element
ohair@286:      * @param localName
ohair@286:      *      Local name of the current element
ohair@286:      * @return
ohair@286:      *      It's OK to return a relative URL.
ohair@286:      */
ohair@286:     protected abstract String findExternalResource( String nsURI, String localName, Attributes atts);
ohair@286: 
alanb@368:     @Override
ohair@286:     public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
ohair@286:         throws SAXException {
ohair@286:         super.startElement(namespaceURI, localName, qName, atts);
ohair@286: 
ohair@286:         String relativeRef = findExternalResource(namespaceURI,localName,atts);
ohair@286:         if(relativeRef==null)   return; // non found
ohair@286: 
ohair@286:         try {
ohair@286:             // absolutize URL.
alanb@368:             assert locator != null;
alanb@368:             String lsi = locator.getSystemId();
alanb@368:             String ref;
alanb@368:             if (lsi.startsWith("jar:")) {
alanb@368:                     int bangIdx = lsi.indexOf('!');
alanb@368:                     if (bangIdx > 0) {
alanb@368:                             ref = new URL(new URL(lsi), relativeRef).toString();
alanb@368:                     } else
alanb@368:                             ref = relativeRef;
alanb@368:             } else
alanb@368:                     ref = new URI(lsi).resolve(new URI(relativeRef)).toString();
ohair@286: 
ohair@286:             // then parse this schema as well,
ohair@286:             // but don't mark this document as a root.
ohair@286:             parent.parse(ref,false);
ohair@286:         } catch( URISyntaxException e ) {
ohair@286:             SAXParseException spe = new SAXParseException2(
ohair@286:                     WsdlMessages.ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(relativeRef,e.getMessage()),
ohair@286:                 locator, e );
ohair@286: 
ohair@286:             fatalError(spe);
ohair@286:             throw spe;
ohair@286:         } catch( IOException e ) {
ohair@286:             SAXParseException spe = new SAXParseException2(
ohair@286:                 WsdlMessages.ABSTRACT_REFERENCE_FINDER_IMPL_UNABLE_TO_PARSE(relativeRef,e.getMessage()),
ohair@286:                 locator, e );
ohair@286: 
ohair@286:             fatalError(spe);
ohair@286:             throw spe;
ohair@286:         }
ohair@286:     }
ohair@286: 
ohair@286:     private Locator locator;
ohair@286: 
alanb@368:     @Override
ohair@286:     public void setDocumentLocator(Locator locator) {
ohair@286:         super.setDocumentLocator(locator);
ohair@286:         this.locator = locator;
ohair@286:     }
ohair@286: }