com.sun.xml.xsom.util.DomAnnotationParserFactory Maven / Gradle / Ivy
/*
* 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.xml.xsom.util;
/*-
* #%L
* XSOM
* %%
* Copyright (C) 2019 - 2020 Entur
* %%
* Licensed under the EUPL, Version 1.1 or – as soon they will be
* approved by the European Commission - subsequent versions of the
* EUPL (the "Licence");
*
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
*
* http://ec.europa.eu/idabc/eupl5
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the Licence is distributed on an "AS IS" basis,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Licence for the specific language governing permissions and
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*/
import com.sun.xml.xsom.XSAnnotation;
import com.sun.xml.xsom.parser.AnnotationContext;
import com.sun.xml.xsom.parser.AnnotationParser;
import com.sun.xml.xsom.parser.AnnotationParserFactory;
import javax.xml.XMLConstants;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.ContentHandler;
import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
/**
* {@link AnnotationParserFactory} that parses annotations into a W3C DOM.
*
*
* If you use this parser factory, you'll get {@link Element} that represents
* {@code } from {@link XSAnnotation#getAnnotation()}.
*
*
* When multiple {@code s} are found for the given schema component,
* you'll see all {@code s} and {@code s} combined under
* one {@code } element.
*
* @author Kohsuke Kawaguchi
*/
public class DomAnnotationParserFactory implements AnnotationParserFactory {
public AnnotationParser create() {
return new AnnotationParserImpl();
}
public AnnotationParser create(boolean disableSecureProcessing) {
return new AnnotationParserImpl(disableSecureProcessing);
}
private static final ContextClassloaderLocal stf = new ContextClassloaderLocal() {
@Override
protected SAXTransformerFactory initialValue() throws Exception {
return (SAXTransformerFactory) SAXTransformerFactory.newInstance();
}
};
private static class AnnotationParserImpl extends AnnotationParser {
/**
* Identity transformer used to parse SAX into DOM.
*/
private final TransformerHandler transformer;
private DOMResult result;
AnnotationParserImpl() {
this(false);
}
AnnotationParserImpl(boolean disableSecureProcessing) {
try {
SAXTransformerFactory factory = stf.get();
factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, disableSecureProcessing);
transformer = factory.newTransformerHandler();
} catch (TransformerConfigurationException e) {
throw new Error(e); // impossible
}
}
public ContentHandler getContentHandler(AnnotationContext context, String parentElementName, ErrorHandler errorHandler, EntityResolver entityResolver) {
result = new DOMResult();
transformer.setResult(result);
return transformer;
}
public Object getResult(Object existing) {
Document dom = (Document)result.getNode();
Element e = dom.getDocumentElement();
if(existing instanceof Element) {
// merge all the children
Element prev = (Element) existing;
Node anchor = e.getFirstChild();
while(prev.getFirstChild()!=null) {
Node move = prev.getFirstChild();
e.insertBefore(e.getOwnerDocument().adoptNode(move), anchor );
}
}
return e;
}
}
}