Mercurial > jdk8-mips64-public > jaxws / file revision

 /*

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  * 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

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 package com.sun.tools.internal.xjc.reader;

 import java.util.StringTokenizer;

 import com.sun.tools.internal.xjc.Options;

 import org.xml.sax.Attributes;

 import org.xml.sax.ErrorHandler;

 import org.xml.sax.SAXException;

 /**

  * This filter checks jaxb:extensionBindingPrefix and

  * pass/filter extension bindings.

  *

  * <p>

  * This filter also remembers enabled extension namespaces

  * and filters out any extension namespaces that doesn't belong

  * to those. The net effect is that disabled customizations

  * will never pass through this filter.

  *

  * <p>

  * Note that we can't just filter out all foreign namespaces,

  * as we need to use user-defined tags in documentations to generate javadoc.

  *

  * <p>

  * The class needs to know the list of extension binding namespaces

  * that the RI recognizes.

  * To add new URI, modify the isSupportedExtension method.

  *

  * @author

  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

  */

 public final class ExtensionBindingChecker extends AbstractExtensionBindingChecker {

     /**

      * Number of the elements encountered. Used to detect the root element.

      */

     private int count=0;

     public ExtensionBindingChecker(String schemaLanguage, Options options, ErrorHandler handler) {

         super(schemaLanguage, options, handler);

     }

     /**

      * Returns true if the elements with the given namespace URI

      * should be blocked by this filter.

      */

     private boolean needsToBePruned( String uri ) {

         if( uri.equals(schemaLanguage) )

             return false;

         if( uri.equals(Const.JAXB_NSURI) )

             return false;

         if( enabledExtensions.contains(uri) )

             return false;

         // we don't need to prune something unless

         // the rest of the processor recognizes it as something special.

         // this allows us to send the documentation and other harmless

         // foreign XML fragments, which may be picked up as documents.

         return isRecognizableExtension(uri);

     }

     @Override

     public void startDocument() throws SAXException {

         super.startDocument();

         count=0;

     }

     @Override

     public void startElement(String namespaceURI, String localName, String qName, Attributes atts)

         throws SAXException {

         if(!isCutting()) {

             String v = atts.getValue(Const.JAXB_NSURI,"extensionBindingPrefixes");

             if(v!=null) {

                 if(count!=0)

                     // the binding attribute is allowed only at the root level.

                     error( Messages.ERR_UNEXPECTED_EXTENSION_BINDING_PREFIXES.format() );

                 if(!allowExtensions)

                     error( Messages.ERR_VENDOR_EXTENSION_DISALLOWED_IN_STRICT_MODE.format() );

                 // then remember the associated namespace URIs.

                 StringTokenizer tokens = new StringTokenizer(v);

                 while(tokens.hasMoreTokens()) {

                     String prefix = tokens.nextToken();

                     String uri = nsSupport.getURI(prefix);

                     if( uri==null )

                         // undeclared prefix

                         error( Messages.ERR_UNDECLARED_PREFIX.format(prefix) );

                     else

                         checkAndEnable(uri);

                 }

             }

             if( needsToBePruned(namespaceURI) ) {

                 // start pruning the tree. Call the super class method directly.

                 if( isRecognizableExtension(namespaceURI) ) {

                     // but this is a supported customization.

                     // isn't the user forgetting @jaxb:extensionBindingPrefixes?

                     warning( Messages.ERR_SUPPORTED_EXTENSION_IGNORED.format(namespaceURI) );

                 }

                 startCutting();

             } else

                 verifyTagName(namespaceURI, localName, qName);

         }

         count++;

         super.startElement(namespaceURI, localName, qName, atts);

     }

 }