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src/share/jaxws_classes/com/sun/xml/internal/ws/util/DOMUtil.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/util/DOMUtil.java

Thu, 31 Aug 2017 15:18:52 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:18:52 +0800

changeset 637

9c07ef4934dd

parent 368

0989ad8c0860

parent 0

373ffda63c9a

child 1435

a90b319bae7a

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.xml.internal.ws.util;
aoqi@0	27
aoqi@0	28	import com.sun.istack.internal.NotNull;
aoqi@0	29	import com.sun.istack.internal.Nullable;
aoqi@0	30	import com.sun.xml.internal.ws.util.xml.XmlUtil;
aoqi@0	31	import org.w3c.dom.*;
aoqi@0	32
aoqi@0	33	import javax.xml.XMLConstants;
aoqi@0	34	import javax.xml.namespace.NamespaceContext;
aoqi@0	35	import javax.xml.parsers.DocumentBuilder;
aoqi@0	36	import javax.xml.parsers.DocumentBuilderFactory;
aoqi@0	37	import javax.xml.parsers.FactoryConfigurationError;
aoqi@0	38	import javax.xml.parsers.ParserConfigurationException;
aoqi@0	39	import javax.xml.stream.XMLStreamException;
aoqi@0	40	import javax.xml.stream.XMLStreamWriter;
aoqi@0	41	import java.util.ArrayList;
aoqi@0	42	import java.util.Iterator;
aoqi@0	43	import java.util.List;
aoqi@0	44
aoqi@0	45	/**
aoqi@0	46	* @author JAXWS Development Team
aoqi@0	47	*/
aoqi@0	48	public class DOMUtil {
aoqi@0	49
aoqi@0	50	private static DocumentBuilder db;
aoqi@0	51
aoqi@0	52	/**
aoqi@0	53	* Creates a new DOM document.
aoqi@0	54	*/
aoqi@0	55	public static Document createDom() {
aoqi@0	56	synchronized (DOMUtil.class) {
aoqi@0	57	if (db == null) {
aoqi@0	58	try {
aoqi@0	59	DocumentBuilderFactory dbf = XmlUtil.newDocumentBuilderFactory();
aoqi@0	60	dbf.setNamespaceAware(true);
aoqi@0	61	db = dbf.newDocumentBuilder();
aoqi@0	62	} catch (ParserConfigurationException e) {
aoqi@0	63	throw new FactoryConfigurationError(e);
aoqi@0	64	}
aoqi@0	65	}
aoqi@0	66	return db.newDocument();
aoqi@0	67	}
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	/**
aoqi@0	71	* Traverses a DOM node and writes out on a streaming writer.
aoqi@0	72	*
aoqi@0	73	* @param node
aoqi@0	74	* @param writer
aoqi@0	75	*/
aoqi@0	76	public static void serializeNode(Element node, XMLStreamWriter writer) throws XMLStreamException {
aoqi@0	77	writeTagWithAttributes(node, writer);
aoqi@0	78
aoqi@0	79	if (node.hasChildNodes()) {
aoqi@0	80	NodeList children = node.getChildNodes();
aoqi@0	81	for (int i = 0; i < children.getLength(); i++) {
aoqi@0	82	Node child = children.item(i);
aoqi@0	83	switch (child.getNodeType()) {
aoqi@0	84	case Node.PROCESSING_INSTRUCTION_NODE:
aoqi@0	85	writer.writeProcessingInstruction(child.getNodeValue());
aoqi@0	86	break;
aoqi@0	87	case Node.DOCUMENT_TYPE_NODE:
aoqi@0	88	break;
aoqi@0	89	case Node.CDATA_SECTION_NODE:
aoqi@0	90	writer.writeCData(child.getNodeValue());
aoqi@0	91	break;
aoqi@0	92	case Node.COMMENT_NODE:
aoqi@0	93	writer.writeComment(child.getNodeValue());
aoqi@0	94	break;
aoqi@0	95	case Node.TEXT_NODE:
aoqi@0	96	writer.writeCharacters(child.getNodeValue());
aoqi@0	97	break;
aoqi@0	98	case Node.ELEMENT_NODE:
aoqi@0	99	serializeNode((Element) child, writer);
aoqi@0	100	break;
aoqi@0	101	default: break;
aoqi@0	102	}
aoqi@0	103	}
aoqi@0	104	}
aoqi@0	105	writer.writeEndElement();
aoqi@0	106	}
aoqi@0	107
aoqi@0	108	public static void writeTagWithAttributes(Element node, XMLStreamWriter writer) throws XMLStreamException {
aoqi@0	109	String nodePrefix = fixNull(node.getPrefix());
aoqi@0	110	String nodeNS = fixNull(node.getNamespaceURI());
aoqi@0	111	//fix to work with DOM level 1 nodes.
aoqi@0	112	String nodeLocalName = node.getLocalName()== null?node.getNodeName():node.getLocalName();
aoqi@0	113
aoqi@0	114	// See if nodePrefix:nodeNS is declared in writer's NamespaceContext before writing start element
aoqi@0	115	// Writing start element puts nodeNS in NamespaceContext even though namespace declaration not written
aoqi@0	116	boolean prefixDecl = isPrefixDeclared(writer, nodeNS, nodePrefix);
aoqi@0	117	writer.writeStartElement(nodePrefix, nodeLocalName, nodeNS);
aoqi@0	118
aoqi@0	119	if (node.hasAttributes()) {
aoqi@0	120	NamedNodeMap attrs = node.getAttributes();
aoqi@0	121	int numOfAttributes = attrs.getLength();
aoqi@0	122	// write namespace declarations first.
aoqi@0	123	// if we interleave this with attribue writing,
aoqi@0	124	// Zephyr will try to fix it and we end up getting inconsistent namespace bindings.
aoqi@0	125	for (int i = 0; i < numOfAttributes; i++) {
aoqi@0	126	Node attr = attrs.item(i);
aoqi@0	127	String nsUri = fixNull(attr.getNamespaceURI());
aoqi@0	128	if (nsUri.equals(XMLConstants.XMLNS_ATTRIBUTE_NS_URI)) {
aoqi@0	129	// handle default ns declarations
aoqi@0	130	String local = attr.getLocalName().equals(XMLConstants.XMLNS_ATTRIBUTE) ? "" : attr.getLocalName();
aoqi@0	131	if (local.equals(nodePrefix) && attr.getNodeValue().equals(nodeNS)) {
aoqi@0	132	prefixDecl = true;
aoqi@0	133	}
aoqi@0	134	if (local.equals("")) {
aoqi@0	135	writer.writeDefaultNamespace(attr.getNodeValue());
aoqi@0	136	} else {
aoqi@0	137	// this is a namespace declaration, not an attribute
aoqi@0	138	writer.setPrefix(attr.getLocalName(), attr.getNodeValue());
aoqi@0	139	writer.writeNamespace(attr.getLocalName(), attr.getNodeValue());
aoqi@0	140	}
aoqi@0	141	}
aoqi@0	142	}
aoqi@0	143	}
aoqi@0	144	// node's namespace is not declared as attribute, but declared on ancestor
aoqi@0	145	if (!prefixDecl) {
aoqi@0	146	writer.writeNamespace(nodePrefix, nodeNS);
aoqi@0	147	}
aoqi@0	148
aoqi@0	149	// Write all other attributes which are not namespace decl.
aoqi@0	150	if (node.hasAttributes()) {
aoqi@0	151	NamedNodeMap attrs = node.getAttributes();
aoqi@0	152	int numOfAttributes = attrs.getLength();
aoqi@0	153
aoqi@0	154	for (int i = 0; i < numOfAttributes; i++) {
aoqi@0	155	Node attr = attrs.item(i);
aoqi@0	156	String attrPrefix = fixNull(attr.getPrefix());
aoqi@0	157	String attrNS = fixNull(attr.getNamespaceURI());
aoqi@0	158	if (!attrNS.equals(XMLConstants.XMLNS_ATTRIBUTE_NS_URI)) {
aoqi@0	159	String localName = attr.getLocalName();
aoqi@0	160	if (localName == null) {
aoqi@0	161	// TODO: this is really a bug in the caller for not creating proper DOM tree.
aoqi@0	162	// will remove this workaround after plugfest
aoqi@0	163	localName = attr.getNodeName();
aoqi@0	164	}
aoqi@0	165	boolean attrPrefixDecl = isPrefixDeclared(writer, attrNS, attrPrefix);
aoqi@0	166	if (!attrPrefix.equals("") && !attrPrefixDecl) {
aoqi@0	167	// attr has namespace but namespace decl is there in ancestor node
aoqi@0	168	// So write the namespace decl before writing the attr
aoqi@0	169	writer.setPrefix(attr.getLocalName(), attr.getNodeValue());
aoqi@0	170	writer.writeNamespace(attrPrefix, attrNS);
aoqi@0	171	}
aoqi@0	172	writer.writeAttribute(attrPrefix, attrNS, localName, attr.getNodeValue());
aoqi@0	173	}
aoqi@0	174	}
aoqi@0	175	}
aoqi@0	176	}
aoqi@0	177
aoqi@0	178	private static boolean isPrefixDeclared(XMLStreamWriter writer, String nsUri, String prefix) {
aoqi@0	179	boolean prefixDecl = false;
aoqi@0	180	NamespaceContext nscontext = writer.getNamespaceContext();
aoqi@0	181	Iterator prefixItr = nscontext.getPrefixes(nsUri);
aoqi@0	182	while (prefixItr.hasNext()) {
aoqi@0	183	if (prefix.equals(prefixItr.next())) {
aoqi@0	184	prefixDecl = true;
aoqi@0	185	break;
aoqi@0	186	}
aoqi@0	187	}
aoqi@0	188	return prefixDecl;
aoqi@0	189	}
aoqi@0	190
aoqi@0	191	/**
aoqi@0	192	* Gets the first child of the given name, or null.
aoqi@0	193	*/
aoqi@0	194	public static Element getFirstChild(Element e, String nsUri, String local) {
aoqi@0	195	for (Node n = e.getFirstChild(); n != null; n = n.getNextSibling()) {
aoqi@0	196	if (n.getNodeType() == Node.ELEMENT_NODE) {
aoqi@0	197	Element c = (Element) n;
aoqi@0	198	if (c.getLocalName().equals(local) && c.getNamespaceURI().equals(nsUri)) {
aoqi@0	199	return c;
aoqi@0	200	}
aoqi@0	201	}
aoqi@0	202	}
aoqi@0	203	return null;
aoqi@0	204	}
aoqi@0	205
aoqi@0	206	private static
aoqi@0	207	@NotNull
aoqi@0	208	String fixNull(@Nullable String s) {
aoqi@0	209	if (s == null) {
aoqi@0	210	return "";
aoqi@0	211	} else {
aoqi@0	212	return s;
aoqi@0	213	}
aoqi@0	214	}
aoqi@0	215
aoqi@0	216	/**
aoqi@0	217	* Gets the first element child.
aoqi@0	218	*/
aoqi@0	219	public static
aoqi@0	220	@Nullable
aoqi@0	221	Element getFirstElementChild(Node parent) {
aoqi@0	222	for (Node n = parent.getFirstChild(); n != null; n = n.getNextSibling()) {
aoqi@0	223	if (n.getNodeType() == Node.ELEMENT_NODE) {
aoqi@0	224	return (Element) n;
aoqi@0	225	}
aoqi@0	226	}
aoqi@0	227	return null;
aoqi@0	228	}
aoqi@0	229
aoqi@0	230	public static @NotNull
aoqi@0	231	List<Element> getChildElements(Node parent){
aoqi@0	232	List<Element> elements = new ArrayList<Element>();
aoqi@0	233	for (Node n = parent.getFirstChild(); n != null; n = n.getNextSibling()) {
aoqi@0	234	if (n.getNodeType() == Node.ELEMENT_NODE) {
aoqi@0	235	elements.add((Element)n);
aoqi@0	236	}
aoqi@0	237	}
aoqi@0	238	return elements;
aoqi@0	239	}
aoqi@0	240	}