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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.tools.xjc.reader.dtd.bindinfo;

import com.sun.tools.xjc.Options;
import com.sun.tools.xjc.reader.AbstractExtensionBindingChecker;
import com.sun.tools.xjc.reader.Const;

import org.xml.sax.Attributes;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.XMLFilter;

/**
 * {@link XMLFilter} that checks the use of extension namespace URIs
 * (to see if they have corresponding plugins), and otherwise report an error.
 *
 * 

* This code also masks the recognized extensions from the validator that * will be plugged as the next component to this. * * @author Kohsuke Kawaguchi */ final class DTDExtensionBindingChecker extends AbstractExtensionBindingChecker { public DTDExtensionBindingChecker(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( uri.equals(Const.XJC_EXTENSION_URI) ) return false; // we don't want validator to see extensions that we understand , // because they will complain. // OTOH, if this is an extension that we didn't understand, // we want the validator to report an error return enabledExtensions.contains(uri); } public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { if( !isCutting() ) { if(!uri.equals("")) { // "" is the standard namespace checkAndEnable(uri); verifyTagName(uri, localName, qName); if(needsToBePruned(uri)) startCutting(); } } super.startElement(uri, localName, qName, atts); } }





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