mirror of git://gcc.gnu.org/git/gcc.git
227 lines
7.1 KiB
Java
227 lines
7.1 KiB
Java
/* DomNsNode.java --
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Copyright (C) 1999,2000,2001,2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.xml.dom;
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import javax.xml.XMLConstants;
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import org.w3c.dom.DOMException;
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/**
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* <p> Abstract implemention of namespace support. This facilitates
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* sharing code for attribute and element nodes.
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*
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* @author David Brownell
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* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
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*/
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public abstract class DomNsNode
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extends DomNode
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{
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private String name;
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private String namespace;
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private String prefix;
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private String localName;
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/**
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* Constructs a node associated with the specified document, and
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* with the specified namespace information.
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*
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* @param owner The document with which this entity is associated
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* @param namespaceURI Combined with the local part of the name,
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* this identifies a type of element or attribute; may be null.
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* If this is the empty string, it is reassigned as null so that
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* applications only need to test that case.
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* @param name Name of this node, which may include a prefix
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*/
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// package private
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DomNsNode(short nodeType, DomDocument owner, String namespaceURI, String name)
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{
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super(nodeType, owner);
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setNodeName(name);
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setNamespaceURI(namespaceURI);
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}
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/**
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* Constructs a node associated with the specified document, and
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* with the specified namespace information. The prefix and local part
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* are given explicitly rather than being computed. This allows them
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* to be explicitly set to {@code null} as required by
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* {@link Document#createElement(String)}.
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*
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* @param owner The document with which this entity is associated
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* @param namespaceURI Combined with the local part of the name,
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* this identifies a type of element or attribute; may be null.
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* If this is the empty string, it is reassigned as null so that
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* applications only need to test that case.
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* @param name Name of this node, which may include a prefix
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* @param prefix the namespace prefix of the name. May be {@code null}.
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* @param localName the local part of the name. May be {@code null}.
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*/
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// package private
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DomNsNode(short nodeType, DomDocument owner, String namespaceURI, String name,
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String prefix, String localName)
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{
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super(nodeType, owner);
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this.name = name.intern();
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this.prefix = prefix == null ? null : prefix.intern();
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this.localName = localName == null ? null : localName.intern();
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setNamespaceURI(namespaceURI);
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}
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/**
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* <b>DOM L1</b>
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* Returns the node's name, including any namespace prefix.
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*/
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public final String getNodeName()
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{
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return name;
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}
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final void setNodeName(String name)
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{
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this.name = name.intern();
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int index = name.indexOf(':');
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if (index == -1)
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{
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prefix = null;
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localName = this.name;
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}
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else
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{
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prefix = name.substring(0, index).intern();
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localName = name.substring(index + 1).intern();
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}
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}
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/**
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* <b>DOM L2</b>
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* Returns the node's namespace URI
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* <em>or null</em> if the node name is not namespace scoped.
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*/
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public final String getNamespaceURI()
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{
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return namespace;
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}
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final void setNamespaceURI(String namespaceURI)
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{
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if ("".equals(namespaceURI))
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{
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namespaceURI = null;
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}
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namespace = (namespaceURI == null) ? null : namespaceURI.intern();
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}
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/**
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* <b>DOM L2</b>
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* Returns any prefix part of the node's name (before any colon).
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*/
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public final String getPrefix()
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{
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return prefix;
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}
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/**
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* <b>DOM L2</b>
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* Assigns the prefix part of the node's name (before any colon).
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*/
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public final void setPrefix(String prefix)
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{
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if (readonly)
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{
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throw new DomDOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR);
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}
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if (prefix == null)
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{
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name = localName;
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return;
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}
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else if (namespace == null)
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{
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throw new DomDOMException(DOMException.NAMESPACE_ERR,
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"can't set prefix, node has no namespace URI",
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this, 0);
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}
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DomDocument.checkName(prefix, "1.1".equals(owner.getXmlVersion()));
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if (prefix.indexOf (':') != -1)
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{
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throw new DomDOMException(DOMException.NAMESPACE_ERR,
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"illegal prefix " + prefix, this, 0);
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}
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if (XMLConstants.XML_NS_PREFIX.equals(prefix)
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&& !XMLConstants.XML_NS_URI.equals(namespace))
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{
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throw new DomDOMException(DOMException.NAMESPACE_ERR,
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"xml namespace is always " +
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XMLConstants.XML_NS_URI, this, 0);
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}
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if (XMLConstants.XMLNS_ATTRIBUTE.equals(prefix))
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{
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if (namespace != null || getNodeType() != ATTRIBUTE_NODE)
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{
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throw new DomDOMException(DOMException.NAMESPACE_ERR,
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"xmlns attribute prefix is reserved",
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this, 0);
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}
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}
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else if (getNodeType () == ATTRIBUTE_NODE
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&& (XMLConstants.XMLNS_ATTRIBUTE.equals(name) ||
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name.startsWith("xmlns:")))
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{
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throw new DomDOMException(DOMException.NAMESPACE_ERR,
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"namespace declarations can't change names",
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this, 0);
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}
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this.prefix = prefix.intern();
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}
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/**
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* <b>DOM L2</b>
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* Returns the local part of the node's name (after any colon).
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*/
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public final String getLocalName()
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{
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return localName;
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}
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}
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