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Diffstat (limited to 'libjava/gnu/xml/dom/DomNamedNodeMap.java')
| -rw-r--r-- | libjava/gnu/xml/dom/DomNamedNodeMap.java | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/libjava/gnu/xml/dom/DomNamedNodeMap.java b/libjava/gnu/xml/dom/DomNamedNodeMap.java new file mode 100644 index 0000000..af75942 --- /dev/null +++ b/libjava/gnu/xml/dom/DomNamedNodeMap.java @@ -0,0 +1,416 @@ +/* DomNamedNodeMap.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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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 org.w3c.dom.NamedNodeMap; +import org.w3c.dom.Node; + +/** + * <p> "NamedNodeMap" implementation. </p> + * Used mostly to hold element attributes, but sometimes also + * to list notations or entities. + * + * @author David Brownell + * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> + */ +public class DomNamedNodeMap + implements NamedNodeMap +{ + + final DomNode owner; + final short type; + + DomNode first; + int length; + boolean readonly; + + // package private + DomNamedNodeMap(DomNode owner, short type) + { + this.owner = owner; + this.type = type; + } + + /** + * Exposes the internal "readonly" flag. In DOM, all NamedNodeMap + * objects found in a DocumentType object are read-only (after + * they are fully constructed), and those holding attributes of + * a readonly element will also be readonly. + */ + public final boolean isReadonly() + { + return readonly; + } + + /** + * Sets the internal "readonly" flag so the node and its + * children can't be changed. + */ + public void makeReadonly() + { + readonly = true; + for (DomNode ctx = first; ctx != null; ctx = ctx.next) + { + ctx.makeReadonly(); + } + } + + /** + * <b>DOM L1</b> + * Returns the named item from the map, or null; names are just + * the nodeName property. + */ + public Node getNamedItem(String name) + { + for (DomNode ctx = first; ctx != null; ctx = ctx.next) + { + if (ctx.getNodeName().equals(name)) + { + return ctx; + } + } + return null; + } + + /** + * <b>DOM L2</b> + * Returns the named item from the map, or null; names are the + * localName and namespaceURI properties, ignoring any prefix. + */ + public Node getNamedItemNS(String namespaceURI, String localName) + { + if ("".equals(namespaceURI)) + { + namespaceURI = null; + } + for (DomNode ctx = first; ctx != null; ctx = ctx.next) + { + String name = ctx.getLocalName(); + if ((localName == null && name == null) || + (localName != null && localName.equals(name))) + { + String uri = ctx.getNamespaceURI(); + if ("".equals(uri)) + { + uri = null; + } + if ((namespaceURI == null && uri == null) || + (namespaceURI != null && namespaceURI.equals(uri))) + { + return ctx; + } + } + } + return null; + } + + /** + * <b>DOM L1</b> + * Stores the named item into the map, optionally overwriting + * any existing node with that name. The name used is just + * the nodeName attribute. + */ + public Node setNamedItem(Node arg) + { + return setNamedItem(arg, false); + } + + /** + * <b>DOM L2</b> + * Stores the named item into the map, optionally overwriting + * any existing node with that fully qualified name. The name + * used incorporates the localName and namespaceURI properties, + * and ignores any prefix. + */ + public Node setNamedItemNS(Node arg) + { + return setNamedItem(arg, true); + } + + Node setNamedItem(Node arg, boolean ns) + { + if (readonly) + { + throw new DomEx(DomEx.NO_MODIFICATION_ALLOWED_ERR); + } + + DomNode node = (DomNode) arg; + if (node.owner != owner.owner) + { + throw new DomEx(DomEx.WRONG_DOCUMENT_ERR); + } + if (node.nodeType != type) + { + throw new DomEx(DomEx.HIERARCHY_REQUEST_ERR); + } + if (node.nodeType == Node.ATTRIBUTE_NODE) + { + DomNode element = node.parent; + if (element != null && element != owner) + { + throw new DomEx(DomEx.INUSE_ATTRIBUTE_ERR); + } + node.parent = owner; + node.depth = owner.depth + 1; + } + + String nodeName = node.getNodeName(); + String localName = ns ? node.getLocalName() : null; + String namespaceURI = ns ? node.getNamespaceURI() : null; + if ("".equals(namespaceURI)) + { + namespaceURI = null; + } + + // maybe attribute ADDITION events (?) + DomNode last = null; + for (DomNode ctx = first; ctx != null; ctx = ctx.next) + { + boolean test = false; + if (ns) + { + String tln = ctx.getLocalName(); + if (tln.equals(localName)) + { + String tu = ctx.getNamespaceURI(); + if ((tu == null && namespaceURI == null) || + (tu != null && tu.equals(namespaceURI))) + { + test = true; + } + } + } + else + { + test = ctx.getNodeName().equals(nodeName); + } + if (test) + { + // replace + node.previous = ctx.previous; + node.next = ctx.next; + if (ctx.previous != null) + { + ctx.previous.next = node; + } + if (ctx.next != null) + { + ctx.next.previous = node; + } + if (first == ctx) + { + first = node; + } + reparent(node, nodeName, ctx.index); + ctx.parent = null; + ctx.next = null; + ctx.previous = null; + ctx.setDepth(0); + ctx.index = 0; + return ctx; + } + last = ctx; + } + // append + if (last != null) + { + last.next = node; + node.previous = last; + } + else + { + first = node; + } + length++; + reparent(node, nodeName, 0); + return null; + } + + void reparent(DomNode node, String nodeName, int i) + { + node.parent = owner; + node.setDepth(owner.depth + 1); + // index renumbering + for (DomNode ctx = node; ctx != null; ctx = ctx.next) + { + ctx.index = i++; + } + // cache xml:space + boolean xmlSpace = "xml:space".equals(nodeName); + if (xmlSpace && owner instanceof DomElement) + { + ((DomElement) owner).xmlSpace = node.getNodeValue(); + } + } + + /** + * <b>DOM L1</b> + * Removes the named item from the map, or reports an exception; + * names are just the nodeName property. + */ + public Node removeNamedItem(String name) + { + return removeNamedItem(null, name, false); + } + + /** + * <b>DOM L2</b> + * Removes the named item from the map, or reports an exception; + * names are the localName and namespaceURI properties. + */ + public Node removeNamedItemNS(String namespaceURI, String localName) + { + return removeNamedItem(namespaceURI, localName, true); + } + + Node removeNamedItem(String uri, String name, boolean ns) + { + if (readonly) + { + throw new DomEx(DomEx.NO_MODIFICATION_ALLOWED_ERR); + } + + // report attribute REMOVAL event? + + for (DomNode ctx = first; ctx != null; ctx = ctx.next) + { + boolean test = false; + String nodeName = ctx.getNodeName(); + if (ns) + { + String tln = ctx.getLocalName(); + if (tln.equals(name)) + { + String tu = ctx.getNamespaceURI(); + if ((tu == null && uri == null) || + (tu != null && tu.equals(uri))) + { + test = true; + } + } + } + else + { + test = nodeName.equals(name); + } + if (test) + { + // uncache xml:space + boolean xmlSpace = "xml:space".equals(nodeName); + if (xmlSpace && owner instanceof DomElement) + { + ((DomElement) owner).xmlSpace = ""; + } + // is this a default attribute? + if (ctx.nodeType == Node.ATTRIBUTE_NODE) + { + String def = getDefaultValue(ctx.getNodeName()); + if (def != null) + { + ctx.setNodeValue(def); + ((DomAttr) ctx).setSpecified(false); + return null; + } + } + // remove + if (ctx == first) + { + first = ctx.next; + } + if (ctx.previous != null) + { + ctx.previous.next = ctx.next; + } + if (ctx.next != null) + { + ctx.next.previous = ctx.previous; + } + length--; + ctx.previous = null; + ctx.next = null; + ctx.parent = null; + ctx.setDepth(0); + ctx.index = 0; + return ctx; + } + } + throw new DomEx(DomEx.NOT_FOUND_ERR); + } + + String getDefaultValue(String name) + { + DomDoctype doctype = (DomDoctype) owner.owner.getDoctype(); + if (doctype == null) + { + return null; + } + DTDAttributeTypeInfo info = + doctype.getAttributeTypeInfo(owner.getNodeName(), name); + if (info == null) + { + return null; + } + return info.value; + } + + /** + * <b>DOM L1</b> + * Returns the indexed item from the map, or null. + */ + public Node item(int index) + { + DomNode ctx = first; + int count = 0; + while (ctx != null && count < index) + { + ctx = ctx.next; + count++; + } + return ctx; + } + + /** + * <b>DOM L1</b> + * Returns the length of the map. + */ + public int getLength() + { + return length; + } + +} |