| /* |
| * Copyright (c) 1997, 2021 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.internalizer; |
| |
| import java.io.IOException; |
| |
| import com.sun.xml.xsom.parser.XMLParser; |
| |
| import org.w3c.dom.Document; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.EntityResolver; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| |
| /** |
| * {@link XMLParser} implementation that |
| * parses XML from a DOM forest instead of parsing it from |
| * its original location. |
| * |
| * @author |
| * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
| */ |
| class DOMForestParser implements XMLParser { |
| |
| /** DOM forest to be "parsed". */ |
| private final DOMForest forest; |
| |
| /** Scanner object will do the actual SAX events generation. */ |
| private final DOMForestScanner scanner; |
| |
| private final XMLParser fallbackParser; |
| |
| /** |
| * @param fallbackParser |
| * This parser will be used when DOMForestParser needs to parse |
| * documents that are not in the forest. |
| */ |
| DOMForestParser( DOMForest forest, XMLParser fallbackParser ) { |
| this.forest = forest; |
| this.scanner = new DOMForestScanner(forest); |
| this.fallbackParser = fallbackParser; |
| } |
| |
| @Override |
| public void parse( |
| InputSource source, |
| ContentHandler contentHandler, |
| ErrorHandler errorHandler, |
| EntityResolver entityResolver ) |
| throws SAXException, IOException { |
| |
| String systemId = source.getSystemId(); |
| Document dom = forest.get(systemId); |
| |
| if(dom==null) { |
| // if no DOM tree is built for it, |
| // let the fall back parser parse the original document. |
| // |
| // for example, XSOM parses datatypes.xsd (XML Schema part 2) |
| // but this will never be built into the forest. |
| fallbackParser.parse( source, contentHandler, errorHandler, entityResolver ); |
| return; |
| } |
| |
| scanner.scan( dom, contentHandler ); |
| } |
| } |