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 * Copyright (c) 2003, 2013, 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
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package com.sun.tools.doclets.internal.toolkit.builders;

import java.io.*;
import java.util.*;

import javax.xml.parsers.*;

import org.xml.sax.*;
import org.xml.sax.helpers.DefaultHandler;

import com.sun.tools.doclets.internal.toolkit.*;
import com.sun.tools.doclets.internal.toolkit.util.*;

Parse the XML that specified the order of operation for the builders.  This
Parser uses SAX parsing.
 
This is NOT part of any supported API.
 If you write code that depends on this, you do so at your own risk.
 This code and its internal interfaces are subject to change or
 deletion without notice.
Author:
Jamie Ho
See Also:
SAXParser
Since:
1.5/**
 * Parse the XML that specified the order of operation for the builders.  This
 * Parser uses SAX parsing.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 *
 * @author Jamie Ho
 * @since 1.5
 * @see SAXParser
 */
@Deprecated
public class LayoutParser extends DefaultHandler {

    
The map of XML elements that have been parsed.
/**
     * The map of XML elements that have been parsed.
     */
    private Map<String,XMLNode> xmlElementsMap;
    private XMLNode currentNode;
    private final Configuration configuration;
    private String currentRoot;
    private boolean isParsing;

    private LayoutParser(Configuration configuration) {
        xmlElementsMap = new HashMap<>();
        this.configuration = configuration;
    }

    
Return an instance of the BuilderXML.
Params:
configuration – the current configuration of the doclet.
Returns:
an instance of the BuilderXML./**
     * Return an instance of the BuilderXML.
     *
     * @param configuration the current configuration of the doclet.
     * @return an instance of the BuilderXML.
     */
    public static LayoutParser getInstance(Configuration configuration) {
        return new LayoutParser(configuration);
    }

    
Parse the XML specifying the layout of the documentation.
Returns:
the list of XML elements parsed./**
     * Parse the XML specifying the layout of the documentation.
     *
     * @return the list of XML elements parsed.
     */
    public XMLNode parseXML(String root) {
        if (xmlElementsMap.containsKey(root)) {
            return xmlElementsMap.get(root);
        }
        try {
            currentRoot = root;
            isParsing = false;
            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser saxParser = factory.newSAXParser();
            InputStream in = configuration.getBuilderXML();
            saxParser.parse(in, this);
            return xmlElementsMap.get(root);
        } catch (Throwable t) {
            t.printStackTrace();
            throw new DocletAbortException(t);
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void startElement(String namespaceURI, String sName, String qName,
        Attributes attrs)
    throws SAXException {
        if (isParsing || qName.equals(currentRoot)) {
            isParsing = true;
            currentNode = new XMLNode(currentNode, qName);
            for (int i = 0; i < attrs.getLength(); i++)
                currentNode.attrs.put(attrs.getLocalName(i), attrs.getValue(i));
            if (qName.equals(currentRoot))
                xmlElementsMap.put(qName, currentNode);
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void endElement(String namespaceURI, String sName, String qName)
    throws SAXException {
        if (! isParsing) {
            return;
        }
        currentNode = currentNode.parent;
        isParsing = ! qName.equals(currentRoot);
    }
}