| /* |
| * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.tools.internal.xjc.reader.internalizer; |
| |
| import java.util.Set; |
| import java.util.HashSet; |
| import java.util.Arrays; |
| |
| import com.sun.tools.internal.xjc.reader.Const; |
| |
| import org.xml.sax.Attributes; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.EntityResolver; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| import org.xml.sax.XMLReader; |
| import org.xml.sax.helpers.LocatorImpl; |
| import org.xml.sax.helpers.XMLFilterImpl; |
| |
| /** |
| * Checks the jaxb:version attribute on a XML Schema document. |
| * |
| * jaxb:version is optional if no binding customization is used, |
| * but if present, its value must be "1.0". |
| * |
| * @author |
| * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
| */ |
| public class VersionChecker extends XMLFilterImpl { |
| |
| /** |
| * We store the value of the version attribute in this variable |
| * when we hit the root element. |
| */ |
| private String version = null ; |
| |
| /** Will be set to true once we hit the root element. */ |
| private boolean seenRoot = false; |
| |
| /** Will be set to true once we hit a binding declaration. */ |
| private boolean seenBindings = false; |
| |
| private Locator locator; |
| |
| /** |
| * Stores the location of the start tag of the root tag. |
| */ |
| private Locator rootTagStart; |
| |
| public VersionChecker( XMLReader parent ) { |
| setParent(parent); |
| } |
| |
| public VersionChecker( ContentHandler handler,ErrorHandler eh,EntityResolver er ) { |
| setContentHandler(handler); |
| if(eh!=null) setErrorHandler(eh); |
| if(er!=null) setEntityResolver(er); |
| } |
| |
| public void startElement(String namespaceURI, String localName, String qName, Attributes atts) |
| throws SAXException { |
| |
| super.startElement(namespaceURI, localName, qName, atts); |
| |
| if(!seenRoot) { |
| // if this is the root element |
| seenRoot = true; |
| rootTagStart = new LocatorImpl(locator); |
| |
| version = atts.getValue(Const.JAXB_NSURI,"version"); |
| if( namespaceURI.equals(Const.JAXB_NSURI) ) { |
| String version2 = atts.getValue("","version"); |
| if( version!=null && version2!=null ) { |
| // we have both @version and @jaxb:version. error. |
| SAXParseException e = new SAXParseException( |
| Messages.format( Messages.TWO_VERSION_ATTRIBUTES ), locator ); |
| getErrorHandler().error(e); |
| } |
| if( version==null ) |
| version = version2; |
| } |
| |
| } |
| |
| if( Const.JAXB_NSURI.equals(namespaceURI) ) |
| seenBindings = true; |
| } |
| |
| public void endDocument() throws SAXException { |
| super.endDocument(); |
| |
| if( seenBindings && version==null ) { |
| // if we see a binding declaration but not version attribute |
| SAXParseException e = new SAXParseException( |
| Messages.format(Messages.ERR_VERSION_NOT_FOUND),rootTagStart); |
| getErrorHandler().error(e); |
| } |
| |
| // if present, the value must be either 1.0 or 2.0 |
| if( version!=null && !VERSIONS.contains(version) ) { |
| SAXParseException e = new SAXParseException( |
| Messages.format(Messages.ERR_INCORRECT_VERSION),rootTagStart); |
| getErrorHandler().error(e); |
| } |
| } |
| |
| public void setDocumentLocator(Locator locator) { |
| super.setDocumentLocator(locator); |
| this.locator = locator; |
| } |
| |
| private static final Set<String> VERSIONS = new HashSet<String>(Arrays.asList("1.0","2.0","2.1")); |
| |
| } |