| /* |
| * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| package com.sun.tools.internal.xjc.reader.internalizer; |
| |
| import java.io.IOException; |
| import java.io.File; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| |
| import com.sun.istack.internal.SAXParseException2; |
| |
| import org.xml.sax.Attributes; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| import org.xml.sax.helpers.XMLFilterImpl; |
| |
| /** |
| * XMLFilter that finds references to other schema files from |
| * SAX events. |
| * |
| * This implementation is a base implementation for typical case |
| * where we just need to look for a particular attribute which |
| * contains an URL to another schema file. |
| * |
| * @author |
| * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
| */ |
| public abstract class AbstractReferenceFinderImpl extends XMLFilterImpl { |
| protected final DOMForest parent; |
| |
| protected AbstractReferenceFinderImpl( DOMForest _parent ) { |
| this.parent = _parent; |
| } |
| |
| /** |
| * IF the given element contains a reference to an external resource, |
| * return its URL. |
| * |
| * @param nsURI |
| * Namespace URI of the current element |
| * @param localName |
| * Local name of the current element |
| * @return |
| * It's OK to return a relative URL. |
| */ |
| protected abstract String findExternalResource( String nsURI, String localName, Attributes atts); |
| |
| public void startElement(String namespaceURI, String localName, String qName, Attributes atts) |
| throws SAXException { |
| super.startElement(namespaceURI, localName, qName, atts); |
| |
| String relativeRef = findExternalResource(namespaceURI,localName,atts); |
| if(relativeRef==null) return; // non found |
| |
| try { |
| // absolutize URL. |
| String ref = new URI(locator.getSystemId()).resolve(new URI(relativeRef)).toString(); |
| |
| // then parse this schema as well, |
| // but don't mark this document as a root. |
| parent.parse(ref,false); |
| } catch( URISyntaxException e ) { |
| String msg = e.getMessage(); |
| if(new File(relativeRef).exists()) { |
| msg = Messages.format(Messages.ERR_FILENAME_IS_NOT_URI)+' '+msg; |
| } |
| |
| SAXParseException spe = new SAXParseException2( |
| Messages.format(Messages.ERR_UNABLE_TO_PARSE,relativeRef, msg), |
| locator, e ); |
| |
| fatalError(spe); |
| throw spe; |
| } catch( IOException e ) { |
| SAXParseException spe = new SAXParseException2( |
| Messages.format(Messages.ERR_UNABLE_TO_PARSE,relativeRef,e.getMessage()), |
| locator, e ); |
| |
| fatalError(spe); |
| throw spe; |
| } |
| } |
| |
| private Locator locator; |
| |
| public void setDocumentLocator(Locator locator) { |
| super.setDocumentLocator(locator); |
| this.locator = locator; |
| } |
| }; |