mirror of git://gcc.gnu.org/git/gcc.git
502 lines
13 KiB
Java
502 lines
13 KiB
Java
/* GnomeNode.java -
|
|
Copyright (C) 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.libxmlj.dom;
|
|
|
|
import gnu.java.lang.CPStringBuilder;
|
|
|
|
import java.util.HashMap;
|
|
import java.util.Iterator;
|
|
import java.util.Map;
|
|
|
|
import org.w3c.dom.Document;
|
|
import org.w3c.dom.DocumentType;
|
|
import org.w3c.dom.DOMException;
|
|
import org.w3c.dom.NamedNodeMap;
|
|
import org.w3c.dom.Node;
|
|
import org.w3c.dom.NodeList;
|
|
import org.w3c.dom.Text;
|
|
import org.w3c.dom.UserDataHandler;
|
|
|
|
import gnu.xml.libxmlj.util.StandaloneDocumentType;
|
|
|
|
/**
|
|
* A DOM node implemented in libxml2.
|
|
*
|
|
* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
|
|
*/
|
|
class GnomeNode
|
|
implements Node, Comparable
|
|
{
|
|
|
|
/**
|
|
* Maps document pointers to a map of node pointers to node instances.
|
|
*/
|
|
static Map instances;
|
|
|
|
/**
|
|
* Retrieves the node instance for the specified node pointer.
|
|
* This creates a new instance and adds it to the cache if required.
|
|
* @param doc the document pointer
|
|
* @param node the node pointer
|
|
* @param type the node type
|
|
*/
|
|
static GnomeNode newInstance(final Object doc, final Object node,
|
|
final int type)
|
|
{
|
|
if (doc == null)
|
|
{
|
|
throw new NullPointerException("doc");
|
|
}
|
|
if (node == null)
|
|
{
|
|
throw new NullPointerException("node");
|
|
}
|
|
if (instances == null)
|
|
{
|
|
instances = new HashMap();
|
|
}
|
|
Map docNodes = (Map) instances.get(doc);
|
|
if (docNodes == null)
|
|
{
|
|
docNodes = new HashMap(1024); // TODO review optimal initial capacity
|
|
instances.put(doc, docNodes);
|
|
}
|
|
GnomeNode nodeInstance = (GnomeNode) docNodes.get(node);
|
|
if (nodeInstance != null)
|
|
{
|
|
return nodeInstance; // Return cached version
|
|
}
|
|
switch (type)
|
|
{
|
|
case ELEMENT_NODE:
|
|
nodeInstance = new GnomeElement(node);
|
|
break;
|
|
case ATTRIBUTE_NODE:
|
|
nodeInstance = new GnomeAttr(node);
|
|
break;
|
|
case TEXT_NODE:
|
|
nodeInstance = new GnomeText(node);
|
|
break;
|
|
case CDATA_SECTION_NODE:
|
|
nodeInstance = new GnomeCDATASection(node);
|
|
break;
|
|
case ENTITY_REFERENCE_NODE:
|
|
nodeInstance = new GnomeEntityReference(node);
|
|
break;
|
|
case ENTITY_NODE:
|
|
nodeInstance = new GnomeEntity(node);
|
|
break;
|
|
case PROCESSING_INSTRUCTION_NODE:
|
|
nodeInstance = new GnomeProcessingInstruction(node);
|
|
break;
|
|
case COMMENT_NODE:
|
|
nodeInstance = new GnomeComment(node);
|
|
break;
|
|
case DOCUMENT_NODE:
|
|
nodeInstance = new GnomeDocument(node);
|
|
break;
|
|
case DOCUMENT_TYPE_NODE:
|
|
nodeInstance = new GnomeDocumentType(node);
|
|
break;
|
|
case DOCUMENT_FRAGMENT_NODE:
|
|
nodeInstance = new GnomeDocumentFragment(node);
|
|
break;
|
|
case NOTATION_NODE:
|
|
nodeInstance = new GnomeNotation(node);
|
|
break;
|
|
default:
|
|
throw new IllegalArgumentException("Unknown node type: " + type);
|
|
}
|
|
docNodes.put(node, nodeInstance);
|
|
return nodeInstance;
|
|
}
|
|
|
|
/**
|
|
* Frees the specified document.
|
|
* This removes all its nodes from the cache.
|
|
*/
|
|
static void freeDocument(final Object doc)
|
|
{
|
|
if (instances == null || doc == null)
|
|
{
|
|
return;
|
|
}
|
|
instances.remove(doc);
|
|
//System.out.println("Freed "+instances.remove(doc));
|
|
}
|
|
|
|
/**
|
|
* xmlNodePtr
|
|
*/
|
|
final Object id;
|
|
|
|
Map userData;
|
|
Map userDataHandlers;
|
|
|
|
GnomeNode(final Object id)
|
|
{
|
|
this.id = id;
|
|
}
|
|
|
|
public native String getNodeName();
|
|
|
|
public native String getNodeValue()
|
|
throws DOMException;
|
|
|
|
public native void setNodeValue(String nodeValue)
|
|
throws DOMException;
|
|
|
|
public native short getNodeType();
|
|
|
|
public native Node getParentNode();
|
|
|
|
public NodeList getChildNodes()
|
|
{
|
|
return new GnomeNodeList(id);
|
|
}
|
|
|
|
public native Node getFirstChild();
|
|
|
|
public native Node getLastChild();
|
|
|
|
public native Node getPreviousSibling();
|
|
|
|
public native Node getNextSibling();
|
|
|
|
public NamedNodeMap getAttributes()
|
|
{
|
|
return new GnomeNamedNodeMap(id, 0);
|
|
}
|
|
|
|
public native Document getOwnerDocument();
|
|
|
|
public Node insertBefore(Node newChild, Node refChild)
|
|
throws DOMException
|
|
{
|
|
if (newChild instanceof StandaloneDocumentType)
|
|
{
|
|
DocumentType dt = (DocumentType) newChild;
|
|
newChild = ((GnomeDocument) getOwnerDocument())
|
|
.createDocumentType(dt.getName(), dt.getPublicId(),
|
|
dt.getSystemId());
|
|
}
|
|
if (newChild == null)
|
|
{
|
|
throw new GnomeDOMException(DOMException.NOT_FOUND_ERR, null);
|
|
}
|
|
if (!(newChild instanceof GnomeNode))
|
|
{
|
|
throw new GnomeDOMException(DOMException.WRONG_DOCUMENT_ERR, null);
|
|
}
|
|
if (refChild == null || !(refChild instanceof GnomeNode))
|
|
{
|
|
throw new GnomeDOMException(DOMException.NOT_FOUND_ERR, null);
|
|
}
|
|
return xmljInsertBefore(newChild, refChild);
|
|
}
|
|
|
|
private native Node xmljInsertBefore(Node newChild, Node refChild)
|
|
throws DOMException;
|
|
|
|
public Node replaceChild(Node newChild, Node oldChild)
|
|
throws DOMException
|
|
{
|
|
if (newChild instanceof StandaloneDocumentType)
|
|
{
|
|
DocumentType dt = (DocumentType) newChild;
|
|
newChild = ((GnomeDocument) getOwnerDocument())
|
|
.createDocumentType(dt.getName(), dt.getPublicId(),
|
|
dt.getSystemId());
|
|
}
|
|
if (newChild == null)
|
|
{
|
|
throw new GnomeDOMException(DOMException.NOT_FOUND_ERR, null);
|
|
}
|
|
if (!(newChild instanceof GnomeNode))
|
|
{
|
|
throw new GnomeDOMException(DOMException.WRONG_DOCUMENT_ERR, newChild.toString());
|
|
}
|
|
if (oldChild == null || !(oldChild instanceof GnomeNode))
|
|
{
|
|
throw new GnomeDOMException(DOMException.NOT_FOUND_ERR, null);
|
|
}
|
|
return xmljReplaceChild(newChild, oldChild);
|
|
}
|
|
|
|
private native Node xmljReplaceChild(Node newChild, Node oldChild)
|
|
throws DOMException;
|
|
|
|
public Node removeChild(Node oldChild)
|
|
throws DOMException
|
|
{
|
|
if (!(oldChild instanceof GnomeNode))
|
|
{
|
|
throw new GnomeDOMException(DOMException.WRONG_DOCUMENT_ERR, null);
|
|
}
|
|
return xmljRemoveChild(oldChild);
|
|
}
|
|
|
|
private native Node xmljRemoveChild(Node oldChild)
|
|
throws DOMException;
|
|
|
|
public Node appendChild(Node newChild)
|
|
throws DOMException
|
|
{
|
|
if (newChild instanceof StandaloneDocumentType)
|
|
{
|
|
DocumentType dt = (DocumentType) newChild;
|
|
newChild = ((GnomeDocument) getOwnerDocument())
|
|
.createDocumentType(dt.getName(), dt.getPublicId(),
|
|
dt.getSystemId());
|
|
}
|
|
if (!(newChild instanceof GnomeNode))
|
|
{
|
|
throw new GnomeDOMException(DOMException.WRONG_DOCUMENT_ERR, null);
|
|
}
|
|
return xmljAppendChild(newChild);
|
|
}
|
|
|
|
private native Node xmljAppendChild(Node newChild)
|
|
throws DOMException;
|
|
|
|
public native boolean hasChildNodes();
|
|
|
|
public Node cloneNode(boolean deep)
|
|
{
|
|
Node ret = xmljCloneNode(deep);
|
|
notifyUserDataHandlers(UserDataHandler.NODE_CLONED, this, ret);
|
|
return ret;
|
|
}
|
|
|
|
private native Node xmljCloneNode(boolean deep);
|
|
|
|
public native void normalize();
|
|
|
|
public boolean isSupported(String feature, String version)
|
|
{
|
|
return getOwnerDocument().getImplementation()
|
|
.hasFeature(feature, version);
|
|
}
|
|
|
|
public native String getNamespaceURI();
|
|
|
|
public native String getPrefix();
|
|
|
|
public native void setPrefix(String prefix)
|
|
throws DOMException;
|
|
|
|
public native String getLocalName();
|
|
|
|
public native boolean hasAttributes();
|
|
|
|
public int hashCode()
|
|
{
|
|
return id.hashCode();
|
|
}
|
|
|
|
public boolean equals(Object other)
|
|
{
|
|
if (other == this)
|
|
{
|
|
return true;
|
|
}
|
|
return (other instanceof GnomeNode &&
|
|
((GnomeNode) other).id == id);
|
|
}
|
|
|
|
// DOM Level 3 methods
|
|
|
|
public native String getBaseURI();
|
|
|
|
public short compareDocumentPosition(Node other)
|
|
throws DOMException
|
|
{
|
|
return (short) compareTo(other);
|
|
}
|
|
|
|
public final int compareTo(Object other)
|
|
{
|
|
if (other instanceof GnomeNode)
|
|
{
|
|
return xmljCompareTo(other);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
private native int xmljCompareTo(Object other);
|
|
|
|
public String getTextContent()
|
|
throws DOMException
|
|
{
|
|
switch (getNodeType())
|
|
{
|
|
case ELEMENT_NODE:
|
|
case ATTRIBUTE_NODE:
|
|
case ENTITY_NODE:
|
|
case ENTITY_REFERENCE_NODE:
|
|
case DOCUMENT_FRAGMENT_NODE:
|
|
CPStringBuilder buffer = new CPStringBuilder();
|
|
NodeList children = getChildNodes();
|
|
int len = children.getLength();
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
Node child = children.item(i);
|
|
String textContent = child.getTextContent();
|
|
if (textContent != null)
|
|
{
|
|
buffer.append(textContent);
|
|
}
|
|
}
|
|
return buffer.toString();
|
|
case TEXT_NODE:
|
|
case CDATA_SECTION_NODE:
|
|
case COMMENT_NODE:
|
|
case PROCESSING_INSTRUCTION_NODE:
|
|
return getNodeValue();
|
|
default:
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public void setTextContent(String textContent)
|
|
throws DOMException
|
|
{
|
|
switch (getNodeType())
|
|
{
|
|
case ENTITY_REFERENCE_NODE:
|
|
// entity references are read only
|
|
throw new GnomeDOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
|
|
null);
|
|
case ELEMENT_NODE:
|
|
case ATTRIBUTE_NODE:
|
|
case ENTITY_NODE:
|
|
case DOCUMENT_FRAGMENT_NODE:
|
|
NodeList children = getChildNodes();
|
|
int len = children.getLength();
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
Node child = children.item(i);
|
|
removeChild(child);
|
|
}
|
|
if (textContent != null)
|
|
{
|
|
Text text = getOwnerDocument().createTextNode(textContent);
|
|
appendChild(text);
|
|
}
|
|
break;
|
|
case TEXT_NODE:
|
|
case CDATA_SECTION_NODE:
|
|
case COMMENT_NODE:
|
|
case PROCESSING_INSTRUCTION_NODE:
|
|
setNodeValue(textContent);
|
|
break;
|
|
}
|
|
}
|
|
|
|
public boolean isSameNode(Node other)
|
|
{
|
|
return equals(other);
|
|
}
|
|
|
|
public native String lookupPrefix(String namespaceURI);
|
|
|
|
public native boolean isDefaultNamespace(String namespaceURI);
|
|
|
|
public native String lookupNamespaceURI(String prefix);
|
|
|
|
public native boolean isEqualNode(Node arg);
|
|
|
|
public Object getFeature(String feature, String version)
|
|
{
|
|
return getOwnerDocument().getImplementation()
|
|
.getFeature(feature, version);
|
|
}
|
|
|
|
public Object setUserData(String key, Object data, UserDataHandler handler)
|
|
{
|
|
// TODO handler
|
|
if (userData == null)
|
|
{
|
|
userData = new HashMap();
|
|
}
|
|
if (handler != null)
|
|
{
|
|
if (userDataHandlers == null)
|
|
{
|
|
userDataHandlers = new HashMap();
|
|
}
|
|
userDataHandlers.put(key, handler);
|
|
}
|
|
return userData.put(key, data);
|
|
}
|
|
|
|
public Object getUserData(String key)
|
|
{
|
|
if (userData == null)
|
|
{
|
|
return null;
|
|
}
|
|
return userData.get(key);
|
|
}
|
|
|
|
void notifyUserDataHandlers(short op, Node src, Node dst)
|
|
{
|
|
if (userDataHandlers != null)
|
|
{
|
|
for (Iterator i = userDataHandlers.entrySet().iterator(); i.hasNext(); )
|
|
{
|
|
Map.Entry entry = (Map.Entry) i.next();
|
|
String key = (String) entry.getKey();
|
|
UserDataHandler handler = (UserDataHandler) entry.getValue();
|
|
Object data = userData.get(key);
|
|
handler.handle(op, key, data, src, dst);
|
|
}
|
|
}
|
|
}
|
|
|
|
public String toString()
|
|
{
|
|
CPStringBuilder buffer = new CPStringBuilder(getClass().getName());
|
|
buffer.append("[nodeName=");
|
|
buffer.append(getNodeName());
|
|
buffer.append("]");
|
|
return buffer.toString();
|
|
}
|
|
|
|
}
|