org.htmlunit.cyberneko.xerces.dom.AttrNSImpl Maven / Gradle / Ivy
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/*
* Copyright 2017-2023 Ronald Brill
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.htmlunit.cyberneko.xerces.dom;
import org.htmlunit.cyberneko.xerces.xni.NamespaceContext;
import org.w3c.dom.DOMException;
/**
* AttrNSImpl inherits from AttrImpl and adds namespace support.
*
* The qualified name is the node name, and we store localName which is also
* used in all queries. On the other hand we recompute the prefix when
* necessary.
*
*
* @author Arnaud Le Hors, IBM
* @author Andy Clark, IBM
* @author Ralf Pfeiffer, IBM
*/
public class AttrNSImpl extends AttrImpl {
static final String xmlnsURI = "http://www.w3.org/2000/xmlns/";
static final String xmlURI = "http://www.w3.org/XML/1998/namespace";
/** DOM2: Namespace URI. */
private String namespaceURI_;
/** DOM2: localName. */
private String localName_;
// DOM2: Constructor for Namespace implementation.
protected AttrNSImpl(final CoreDocumentImpl ownerDocument, final String namespaceURI, final String qualifiedName) {
super(ownerDocument, qualifiedName);
setName(namespaceURI, qualifiedName);
}
private void setName(final String namespaceURI, final String qname) {
final CoreDocumentImpl ownerDocument = ownerDocument();
final String prefix;
// DOM Level 3: namespace URI is never empty string.
this.namespaceURI_ = namespaceURI;
if (namespaceURI != null) {
this.namespaceURI_ = (namespaceURI.length() == 0) ? null : namespaceURI;
}
final int colon1 = qname.indexOf(':');
final int colon2 = qname.lastIndexOf(':');
ownerDocument.checkNamespaceWF(qname, colon1, colon2);
if (colon1 < 0) {
// there is no prefix
localName_ = qname;
if (ownerDocument.errorChecking) {
ownerDocument.checkQName(null, localName_);
if ("xmlns".equals(qname) && (namespaceURI == null || !namespaceURI.equals(NamespaceContext.XMLNS_URI))
|| (namespaceURI != null && namespaceURI.equals(NamespaceContext.XMLNS_URI)
&& !"xmlns".equals(qname))) {
final String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NAMESPACE_ERR", null);
throw new DOMException(DOMException.NAMESPACE_ERR, msg);
}
}
}
else {
prefix = qname.substring(0, colon1);
localName_ = qname.substring(colon2 + 1);
ownerDocument.checkQName(prefix, localName_);
ownerDocument.checkDOMNSErr(prefix, namespaceURI);
}
}
// when local name is known
public AttrNSImpl(final CoreDocumentImpl ownerDocument, final String namespaceURI, final String qualifiedName, final String localName) {
super(ownerDocument, qualifiedName);
this.localName_ = localName;
this.namespaceURI_ = namespaceURI;
}
// Support for DOM Level 3 renameNode method.
// Note: This only deals with part of the pb. It is expected to be
// called after the Attr has been detached for one thing.
// CoreDocumentImpl does all the work.
void rename(final String namespaceURI, final String qualifiedName) {
super.rename(qualifiedName);
setName(namespaceURI, qualifiedName);
}
/**
* {@inheritDoc}
*
* Introduced in DOM Level 2.
*
*
* The namespace URI of this node, or null if it is unspecified.
*
*
* This is not a computed value that is the result of a namespace lookup based
* on an examination of the namespace declarations in scope. It is merely the
* namespace URI given at creation time.
*
*
* For nodes created with a DOM Level 1 method, such as createElement from the
* Document interface, this is null.
*/
@Override
public String getNamespaceURI() {
if (needsSyncData()) {
synchronizeData();
}
// REVIST: This code could/should be done at a lower-level, such that
// the namespaceURI is set properly upon creation. However, there still
// seems to be some DOM spec interpretation grey-area.
return namespaceURI_;
}
/**
* {@inheritDoc}
*
* Introduced in DOM Level 2.
*
*
* The namespace prefix of this node, or null if it is unspecified.
*
* For nodes created with a DOM Level 1 method, such as createElement from the
* Document interface, this is null.
*/
@Override
public String getPrefix() {
if (needsSyncData()) {
synchronizeData();
}
final int index = name.indexOf(':');
return index < 0 ? null : name.substring(0, index);
}
/**
* {@inheritDoc}
*
* Introduced in DOM Level 2.
*
*
* Note that setting this attribute changes the nodeName attribute, which holds
* the qualified name, as well as the tagName and name attributes of the Element
* and Attr interfaces, when applicable.
*
*
* @param prefix The namespace prefix of this node, or null(empty string) if it
* is unspecified.
*
* @exception DOMException INVALID_CHARACTER_ERR Raised if the specified prefix
* contains an invalid character.
*/
@Override
public void setPrefix(final String prefix) throws DOMException {
if (needsSyncData()) {
synchronizeData();
}
if (ownerDocument().errorChecking) {
if (prefix != null && prefix.length() != 0) {
if (!CoreDocumentImpl.isXMLName(prefix, ownerDocument().isXML11Version())) {
final String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "INVALID_CHARACTER_ERR", null);
throw new DOMException(DOMException.INVALID_CHARACTER_ERR, msg);
}
if (namespaceURI_ == null || prefix.indexOf(':') >= 0) {
final String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NAMESPACE_ERR", null);
throw new DOMException(DOMException.NAMESPACE_ERR, msg);
}
if ("xmlns".equals(prefix)) {
if (!namespaceURI_.equals(xmlnsURI)) {
final String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NAMESPACE_ERR", null);
throw new DOMException(DOMException.NAMESPACE_ERR, msg);
}
}
else if ("xml".equals(prefix)) {
if (!namespaceURI_.equals(xmlURI)) {
final String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NAMESPACE_ERR", null);
throw new DOMException(DOMException.NAMESPACE_ERR, msg);
}
}
else if ("xmlns".equals(name)) {
final String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NAMESPACE_ERR", null);
throw new DOMException(DOMException.NAMESPACE_ERR, msg);
}
}
}
// update node name with new qualifiedName
if (prefix != null && prefix.length() != 0) {
name = prefix + ":" + localName_;
}
else {
name = localName_;
}
}
/**
* {@inheritDoc}
*
* Introduced in DOM Level 2.
*
*
* Returns the local part of the qualified name of this node.
*/
@Override
public String getLocalName() {
if (needsSyncData()) {
synchronizeData();
}
return localName_;
}
/**
* {@inheritDoc}
*/
@Override
public String getTypeName() {
return type;
}
/**
* {@inheritDoc}
*
* Introduced in DOM Level 3.
*
* Checks if a type is derived from another by restriction. See:
* http://www.w3.org/TR/DOM-Level-3-Core/core.html#TypeInfo-isDerivedFrom
*
* @param typeNamespaceArg The namspace of the ancestor type declaration
* @param typeNameArg The name of the ancestor type declaration
* @param derivationMethod The derivation method
*
* @return boolean True if the type is derived by restriciton for the reference
* type
*/
@Override
public boolean isDerivedFrom(final String typeNamespaceArg, final String typeNameArg, final int derivationMethod) {
return false;
}
/**
* {@inheritDoc}
*/
@Override
public String getTypeNamespace() {
if (type != null) {
return DTD_URI;
}
return null;
}
}