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Diffstat (limited to 'libjava/classpath/gnu/xml/dom/DomElement.java')
| -rw-r--r-- | libjava/classpath/gnu/xml/dom/DomElement.java | 582 |
1 files changed, 0 insertions, 582 deletions
diff --git a/libjava/classpath/gnu/xml/dom/DomElement.java b/libjava/classpath/gnu/xml/dom/DomElement.java deleted file mode 100644 index 4297499..0000000 --- a/libjava/classpath/gnu/xml/dom/DomElement.java +++ /dev/null @@ -1,582 +0,0 @@ -/* DomElement.java -- - Copyright (C) 1999,2000,2001,2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath 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 for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - -package gnu.xml.dom; - -import java.util.HashSet; -import java.util.Set; -import javax.xml.XMLConstants; - -import org.w3c.dom.Attr; -import org.w3c.dom.DOMException; -import org.w3c.dom.Element; -import org.w3c.dom.NamedNodeMap; -import org.w3c.dom.Node; -import org.w3c.dom.TypeInfo; - -/** - * <p> "Element" implementation. - * - * @author David Brownell - * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> - */ -public class DomElement - extends DomNsNode - implements Element -{ - - /** - * User-defined ID attributes. - * Used by DomAttr.isId and DomDocument.getElementById - */ - Set userIdAttrs; - - // Attributes are VERY expensive in DOM, and not just for - // this implementation. Avoid creating them. - private DomNamedNodeMap attributes; - - // xml:space cache - String xmlSpace = ""; - - /** - * Constructs an Element node associated with the specified document. - * - * <p>This constructor should only be invoked by a Document as part - * of its createElement functionality, or through a subclass which is - * similarly used in a "Sub-DOM" style layer. - * - * @param owner The document with which this node is associated - * @param namespaceURI Combined with the local part of the name, - * this is used to uniquely identify a type of element - * @param name Name of this element, which may include a prefix - */ - protected DomElement(DomDocument owner, String namespaceURI, String name) - { - super(ELEMENT_NODE, owner, namespaceURI, name); - } - - /** - * <p> - * Constructs an Element node associated with the specified document. - * This constructor should only be invoked by a Document as part - * of its createElement functionality, or through a subclass which is - * similarly used in a "Sub-DOM" style layer. - * </p> - * <p> - * With this constructor, the prefix and local part are given explicitly - * rather than being computed. This allows them to be explicitly set to - * {@code null} as required by {@link Document#createElement(String)}. - * </p> - * - * @param owner The document with which this node is associated - * @param namespaceURI Combined with the local part of the name, - * this is used to uniquely identify a type of element - * @param name Name of this element, which may include a prefix - * @param prefix the namespace prefix of the name. May be {@code null}. - * @param localName the local part of the name. May be {@code null}. - */ - protected DomElement(DomDocument owner, String namespaceURI, String name, - String prefix, String localName) - { - super(ELEMENT_NODE, owner, namespaceURI, name, prefix, localName); - } - - /** - * <b>DOM L1</b> - * Returns the element's attributes - */ - public NamedNodeMap getAttributes() - { - if (attributes == null) - { - attributes = new DomNamedNodeMap(this, Node.ATTRIBUTE_NODE); - } - return attributes; - } - - /** - * <b>DOM L2></b> - * Returns true iff this is an element node with attributes. - */ - public boolean hasAttributes() - { - return attributes != null && attributes.length != 0; - } - - /** - * Shallow clone of the element, except that associated - * attributes are (deep) cloned. - */ - public Object clone() - { - DomElement node = (DomElement) super.clone(); - - if (attributes != null) - { - node.attributes = new DomNamedNodeMap(node, Node.ATTRIBUTE_NODE); - for (DomNode ctx = attributes.first; ctx != null; ctx = ctx.next) - { - node.attributes.setNamedItem(ctx.cloneNode(true), true, true); - } - } - return node; - } - - void setOwner(DomDocument doc) - { - if (attributes != null) - { - for (DomNode ctx = attributes.first; ctx != null; ctx = ctx.next) - { - ctx.setOwner(doc); - } - } - super.setOwner(doc); - } - - /** - * Marks this element, its children, and its associated attributes as - * readonly. - */ - public void makeReadonly() - { - super.makeReadonly(); - if (attributes != null) - { - attributes.makeReadonly(); - } - } - - /** - * <b>DOM L1</b> - * Returns the element name (same as getNodeName). - */ - final public String getTagName() - { - return getNodeName(); - } - - /** - * <b>DOM L1</b> - * Returns the value of the specified attribute, or an - * empty string. - */ - public String getAttribute(String name) - { - if ("xml:space" == name) // NB only works on interned string - { - // Use cached value - return xmlSpace; - } - Attr attr = getAttributeNode(name); - return (attr == null) ? "" : attr.getValue(); - } - - /** - * <b>DOM L2</b> - * Returns true if the element has an attribute with the - * specified name (specified or DTD defaulted). - */ - public boolean hasAttribute(String name) - { - return getAttributeNode(name) != null; - } - - /** - * <b>DOM L2</b> - * Returns true if the element has an attribute with the - * specified name (specified or DTD defaulted). - */ - public boolean hasAttributeNS(String namespaceURI, String local) - { - return getAttributeNodeNS(namespaceURI, local) != null; - } - - /** - * <b>DOM L2</b> - * Returns the value of the specified attribute, or an - * empty string. - */ - public String getAttributeNS(String namespaceURI, String local) - { - Attr attr = getAttributeNodeNS(namespaceURI, local); - return (attr == null) ? "" : attr.getValue(); - } - - /** - * <b>DOM L1</b> - * Returns the appropriate attribute node; the name is the - * nodeName property of the attribute. - */ - public Attr getAttributeNode(String name) - { - return (attributes == null) ? null : - (Attr) attributes.getNamedItem(name); - } - - /** - * <b>DOM L2</b> - * Returns the appropriate attribute node; the name combines - * the namespace name and the local part. - */ - public Attr getAttributeNodeNS(String namespace, String localPart) - { - return (attributes == null) ? null : - (Attr) attributes.getNamedItemNS(namespace, localPart); - } - - /** - * <b>DOM L1</b> - * Modifies an existing attribute to have the specified value, - * or creates a new one with that value. The name used is the - * nodeName value. - */ - public void setAttribute(String name, String value) - { - Attr attr = getAttributeNode(name); - if (attr != null) - { - attr.setNodeValue(value); - ((DomAttr) attr).setSpecified(true); - return; - } - attr = owner.createAttribute(name); - attr.setNodeValue(value); - setAttributeNode(attr); - } - - /** - * <b>DOM L2</b> - * Modifies an existing attribute to have the specified value, - * or creates a new one with that value. - */ - public void setAttributeNS(String uri, String aname, String value) - { - if (("xmlns".equals (aname) || aname.startsWith ("xmlns:")) - && !XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals (uri)) - { - throw new DomDOMException(DOMException.NAMESPACE_ERR, - "setting xmlns attribute to illegal value", this, 0); - } - - Attr attr = getAttributeNodeNS(uri, aname); - if (attr != null) - { - attr.setNodeValue(value); - return; - } - attr = owner.createAttributeNS(uri, aname); - attr.setNodeValue(value); - setAttributeNodeNS(attr); - } - - /** - * <b>DOM L1</b> - * Stores the specified attribute, optionally overwriting any - * existing one with that name. - */ - public Attr setAttributeNode(Attr attr) - { - return (Attr) getAttributes().setNamedItem(attr); - } - - /** - * <b>DOM L2</b> - * Stores the specified attribute, optionally overwriting any - * existing one with that name. - */ - public Attr setAttributeNodeNS(Attr attr) - { - return (Attr) getAttributes().setNamedItemNS(attr); - } - - /** - * <b>DOM L1</b> - * Removes the appropriate attribute node. - * If there is no such node, this is (bizarrely enough) a NOP so you - * won't see exceptions if your code deletes non-existent attributes. - * - * <p>Note that since there is no portable way for DOM to record - * DTD information, default values for attributes will never be - * provided automatically. - */ - public void removeAttribute(String name) - { - if (attributes == null) - { - return; - } - - try - { - attributes.removeNamedItem(name); - } - catch (DomDOMException e) - { - if (e.code != DOMException.NOT_FOUND_ERR) - { - throw e; - } - } - } - - /** - * <b>DOM L1</b> - * Removes the appropriate attribute node; the name is the - * nodeName property of the attribute. - * - * <p>Note that since there is no portable way for DOM to record - * DTD information, default values for attributes will never be - * provided automatically. - */ - public Attr removeAttributeNode(Attr node) - { - if (attributes == null) - { - throw new DomDOMException(DOMException.NOT_FOUND_ERR, null, node, 0); - } - return (Attr) attributes.removeNamedItem(node.getNodeName()); - } - - /** - * <b>DOM L2</b> - * Removes the appropriate attribute node; the name combines - * the namespace name and the local part. - * - * <p>Note that since there is no portable way for DOM to record - * DTD information, default values for attributes will never be - * provided automatically. - */ - public void removeAttributeNS(String namespace, String localPart) - { - if (attributes == null) - { - throw new DomDOMException(DOMException.NOT_FOUND_ERR, localPart, null, 0); - } - attributes.removeNamedItemNS (namespace, localPart); - } - - // DOM Level 3 methods - - public String lookupPrefix(String namespaceURI) - { - if (namespaceURI == null) - { - return null; - } - String namespace = getNamespaceURI(); - if (namespace != null && namespace.equals(namespaceURI)) - { - return getPrefix(); - } - if (attributes != null) - { - for (DomNode ctx = attributes.first; ctx != null; ctx = ctx.next) - { - if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI - .equals(ctx.getNamespaceURI())) - { - String value = ctx.getNodeValue(); - if (value.equals(namespaceURI)) - { - return ctx.getLocalName(); - } - } - } - } - return super.lookupPrefix(namespaceURI); - } - - public boolean isDefaultNamespace(String namespaceURI) - { - String namespace = getNamespaceURI(); - if (namespace != null && namespace.equals(namespaceURI)) - { - return getPrefix() == null; - } - if (attributes != null) - { - for (DomNode ctx = attributes.first; ctx != null; ctx = ctx.next) - { - if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI - .equals(ctx.getNamespaceURI())) - { - String qName = ctx.getNodeName(); - return (XMLConstants.XMLNS_ATTRIBUTE.equals(qName)); - } - } - } - return super.isDefaultNamespace(namespaceURI); - } - - public String lookupNamespaceURI(String prefix) - { - String namespace = getNamespaceURI(); - if (namespace != null && equal(prefix, getPrefix())) - { - return namespace; - } - if (attributes != null) - { - for (DomNode ctx = attributes.first; ctx != null; ctx = ctx.next) - { - if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI - .equals(ctx.getNamespaceURI())) - { - if (prefix == null) - { - if (XMLConstants.XMLNS_ATTRIBUTE.equals(ctx.getNodeName())) - { - return ctx.getNodeValue(); - } - } - else - { - if (prefix.equals(ctx.getLocalName())) - { - return ctx.getNodeValue(); - } - } - } - } - } - return super.lookupNamespaceURI(prefix); - } - - public String getBaseURI() - { - if (attributes != null) - { - Node xmlBase = - attributes.getNamedItemNS(XMLConstants.XML_NS_URI, "base"); - if (xmlBase != null) - { - return xmlBase.getNodeValue(); - } - } - return super.getBaseURI(); - } - - public TypeInfo getSchemaTypeInfo() - { - // DTD implementation - DomDoctype doctype = (DomDoctype) owner.getDoctype(); - if (doctype != null) - { - return doctype.getElementTypeInfo(getNodeName()); - } - // TODO XML Schema implementation - return null; - } - - public void setIdAttribute(String name, boolean isId) - { - NamedNodeMap attrs = getAttributes(); - Attr attr = (Attr) attrs.getNamedItem(name); - setIdAttributeNode(attr, isId); - } - - public void setIdAttributeNode(Attr attr, boolean isId) - { - if (readonly) - { - throw new DomDOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR); - } - if (attr == null || attr.getOwnerElement() != this) - { - throw new DomDOMException(DOMException.NOT_FOUND_ERR); - } - if (isId) - { - if (userIdAttrs == null) - { - userIdAttrs = new HashSet(); - } - userIdAttrs.add(attr); - } - else if (userIdAttrs != null) - { - userIdAttrs.remove(attr); - if (userIdAttrs.isEmpty()) - { - userIdAttrs = null; - } - } - } - - public void setIdAttributeNS(String namespaceURI, String localName, - boolean isId) - { - NamedNodeMap attrs = getAttributes(); - Attr attr = (Attr) attrs.getNamedItemNS(namespaceURI, localName); - setIdAttributeNode(attr, isId); - } - - public boolean isEqualNode(Node arg) - { - if (!super.isEqualNode(arg)) - return false; - getAttributes(); - NamedNodeMap argAttrs = arg.getAttributes(); - int len = argAttrs.getLength(); - if (argAttrs == null || (len != attributes.length)) - return false; - for (int i = 0; i < len; i++) - { - Node argCtx = argAttrs.item(i); - // Don't compare namespace nodes - if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI - .equals(argCtx.getNamespaceURI())) - continue; - // Find corresponding attribute node - DomNode ctx = attributes.first; - for (; ctx != null; ctx = ctx.next) - { - if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI - .equals(ctx.getNamespaceURI())) - continue; - if (!ctx.isEqualNode(argCtx)) - continue; - break; - } - if (ctx == null) - return false; // not found - } - return true; - } - -} |