Tue, 09 Oct 2012 19:10:00 -0700
8000663: clean up langtools imports
Reviewed-by: darcy
duke@1 | 1 | /* |
jjg@1357 | 2 | * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@1 | 4 | * |
duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
ohair@554 | 7 | * published by the Free Software Foundation. Oracle designates this |
duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
ohair@554 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
duke@1 | 10 | * |
duke@1 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@1 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@1 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@1 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@1 | 15 | * accompanied this code). |
duke@1 | 16 | * |
duke@1 | 17 | * You should have received a copy of the GNU General Public License version |
duke@1 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@1 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@1 | 20 | * |
ohair@554 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 22 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 23 | * questions. |
duke@1 | 24 | */ |
duke@1 | 25 | package com.sun.tools.doclets.internal.toolkit.builders; |
duke@1 | 26 | |
jjg@1357 | 27 | import java.io.*; |
jjg@1357 | 28 | import java.util.*; |
jjg@1357 | 29 | |
jjg@1357 | 30 | import javax.xml.parsers.*; |
jjg@1357 | 31 | |
jjg@1357 | 32 | import org.xml.sax.*; |
jjg@1357 | 33 | import org.xml.sax.helpers.DefaultHandler; |
jjg@1357 | 34 | |
duke@1 | 35 | import com.sun.tools.doclets.internal.toolkit.*; |
duke@1 | 36 | import com.sun.tools.doclets.internal.toolkit.util.*; |
duke@1 | 37 | |
duke@1 | 38 | /** |
duke@1 | 39 | * Parse the XML that specified the order of operation for the builders. This |
duke@1 | 40 | * Parser uses SAX parsing. |
duke@1 | 41 | * |
duke@1 | 42 | * @author Jamie Ho |
duke@1 | 43 | * @since 1.5 |
duke@1 | 44 | * @see SAXParser |
duke@1 | 45 | */ |
duke@1 | 46 | public class LayoutParser extends DefaultHandler { |
duke@1 | 47 | |
duke@1 | 48 | /** |
duke@1 | 49 | * The map of XML elements that have been parsed. |
duke@1 | 50 | */ |
jjg@589 | 51 | private Map<String,XMLNode> xmlElementsMap; |
jjg@589 | 52 | private XMLNode currentNode; |
duke@1 | 53 | private Configuration configuration; |
duke@1 | 54 | private static LayoutParser instance; |
duke@1 | 55 | private String currentRoot; |
duke@1 | 56 | private boolean isParsing; |
duke@1 | 57 | |
duke@1 | 58 | /** |
duke@1 | 59 | * This class is a singleton. |
duke@1 | 60 | */ |
duke@1 | 61 | private LayoutParser(Configuration configuration) { |
jjg@589 | 62 | xmlElementsMap = new HashMap<String,XMLNode>(); |
duke@1 | 63 | this.configuration = configuration; |
duke@1 | 64 | } |
duke@1 | 65 | |
duke@1 | 66 | /** |
duke@1 | 67 | * Return an instance of the BuilderXML. |
duke@1 | 68 | * |
duke@1 | 69 | * @param configuration the current configuration of the doclet. |
duke@1 | 70 | * @return an instance of the BuilderXML. |
duke@1 | 71 | */ |
duke@1 | 72 | public static LayoutParser getInstance(Configuration configuration) { |
duke@1 | 73 | if (instance == null) { |
duke@1 | 74 | instance = new LayoutParser(configuration); |
duke@1 | 75 | } |
duke@1 | 76 | return instance; |
duke@1 | 77 | } |
duke@1 | 78 | |
duke@1 | 79 | /** |
duke@1 | 80 | * Parse the XML specifying the layout of the documentation. |
duke@1 | 81 | * |
bpatel@766 | 82 | * @return the list of XML elements parsed. |
duke@1 | 83 | */ |
jjg@589 | 84 | public XMLNode parseXML(String root) { |
duke@1 | 85 | if (xmlElementsMap.containsKey(root)) { |
mcimadamore@184 | 86 | return xmlElementsMap.get(root); |
duke@1 | 87 | } |
duke@1 | 88 | try { |
duke@1 | 89 | currentRoot = root; |
duke@1 | 90 | isParsing = false; |
duke@1 | 91 | SAXParserFactory factory = SAXParserFactory.newInstance(); |
duke@1 | 92 | SAXParser saxParser = factory.newSAXParser(); |
duke@1 | 93 | InputStream in = configuration.getBuilderXML(); |
duke@1 | 94 | saxParser.parse(in, this); |
jjg@589 | 95 | return xmlElementsMap.get(root); |
duke@1 | 96 | } catch (Throwable t) { |
duke@1 | 97 | t.printStackTrace(); |
duke@1 | 98 | throw new DocletAbortException(); |
duke@1 | 99 | } |
duke@1 | 100 | } |
duke@1 | 101 | |
duke@1 | 102 | /** |
duke@1 | 103 | * {@inheritDoc} |
duke@1 | 104 | */ |
jjg@589 | 105 | @Override |
duke@1 | 106 | public void startElement(String namespaceURI, String sName, String qName, |
duke@1 | 107 | Attributes attrs) |
duke@1 | 108 | throws SAXException { |
duke@1 | 109 | if (isParsing || qName.equals(currentRoot)) { |
duke@1 | 110 | isParsing = true; |
jjg@589 | 111 | currentNode = new XMLNode(currentNode, qName); |
jjg@589 | 112 | for (int i = 0; i < attrs.getLength(); i++) |
jjg@589 | 113 | currentNode.attrs.put(attrs.getLocalName(i), attrs.getValue(i)); |
jjg@589 | 114 | if (qName.equals(currentRoot)) |
jjg@589 | 115 | xmlElementsMap.put(qName, currentNode); |
duke@1 | 116 | } |
duke@1 | 117 | } |
duke@1 | 118 | |
duke@1 | 119 | /** |
duke@1 | 120 | * {@inheritDoc} |
duke@1 | 121 | */ |
jjg@589 | 122 | @Override |
duke@1 | 123 | public void endElement(String namespaceURI, String sName, String qName) |
duke@1 | 124 | throws SAXException { |
duke@1 | 125 | if (! isParsing) { |
duke@1 | 126 | return; |
duke@1 | 127 | } |
jjg@589 | 128 | currentNode = currentNode.parent; |
duke@1 | 129 | isParsing = ! qName.equals(currentRoot); |
duke@1 | 130 | } |
duke@1 | 131 | } |