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Posted to commits@xalan.apache.org by il...@apache.org on 2002/10/29 03:42:26 UTC
cvs commit: xml-xalan/java/src/org/apache/xpath/domapi XPathNamespaceImpl.java XPathResultImpl.java
ilene 2002/10/28 18:42:26
Modified: java/src/org/apache/xpath/domapi XPathResultImpl.java
Added: java/src/org/apache/xpath/domapi XPathNamespaceImpl.java
Log:
Somewhat rough implementation of XPathNamespace.
Revision Changes Path
1.4 +48 -7 xml-xalan/java/src/org/apache/xpath/domapi/XPathResultImpl.java
Index: XPathResultImpl.java
===================================================================
RCS file: /home/cvs/xml-xalan/java/src/org/apache/xpath/domapi/XPathResultImpl.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- XPathResultImpl.java 28 Oct 2002 21:48:05 -0000 1.3
+++ XPathResultImpl.java 29 Oct 2002 02:42:26 -0000 1.4
@@ -61,6 +61,7 @@
import javax.xml.transform.TransformerException;
import org.apache.xalan.res.XSLMessages;
+import org.apache.xml.dtm.DTM;
import org.apache.xpath.objects.XObject;
import org.apache.xpath.res.XPATHErrorResources;
import org.w3c.dom.DOMException;
@@ -70,8 +71,7 @@
import org.w3c.dom.events.EventListener;
import org.w3c.dom.events.EventTarget;
import org.w3c.dom.traversal.NodeIterator;
-import org.w3c.dom.xpath.XPathException;
-import org.w3c.dom.xpath.XPathResult;
+import org.w3c.dom.xpath.*;
/**
* <meta name="usage" content="experimental"/>
@@ -286,7 +286,17 @@
} catch (TransformerException te) {
throw new XPathException(XPathException.TYPE_ERR,te.getMessage());
}
- return (null == result) ? null : result.nextNode();
+
+ if (null == result) return null;
+
+ Node node = result.nextNode();
+
+ // Wrap "namespace node" in an XPathNamespace
+ if (isNamespaceNode(node)) {
+ return new XPathNamespaceImpl(node);
+ } else {
+ return node;
+ }
}
/**
@@ -344,9 +354,14 @@
throw new DOMException(DOMException.INVALID_STATE_ERR,fmsg); // Document mutated since result was returned. Iterator is invalid.
}
- return m_iterator.nextNode();
-
-
+ Node node = m_iterator.nextNode();
+
+ // Wrap "namespace node" in an XPathNamespace
+ if (isNamespaceNode(node)) {
+ return new XPathNamespaceImpl(node);
+ } else {
+ return node;
+ }
}
/**
@@ -374,7 +389,15 @@
throw new XPathException(XPathException.TYPE_ERR, fmsg); // Can call snapshotItem on type: {0}. This method applies to types
// UNORDERED_NODE_SNAPSHOT_TYPE and ORDERED_NODE_SNAPSHOT_TYPE.
}
- return m_list.item(index);
+
+ Node node = m_list.item(index);
+
+ // Wrap "namespace node" in an XPathNamespace
+ if (isNamespaceNode(node)) {
+ return new XPathNamespaceImpl(node);
+ } else {
+ return node;
+ }
}
@@ -468,4 +491,22 @@
}
+/**
+ * Given a node, determine if it is a namespace node.
+ *
+ * @param node
+ *
+ * @return boolean Returns true if this is a namespace node; otherwise, returns false.
+ */
+ private boolean isNamespaceNode(Node node) {
+
+ if ((null != node) &&
+ (node.getNodeType() == Node.ATTRIBUTE_NODE) &&
+ (node.getNodeName().startsWith("xmlns:") || node.getNodeName().equals("xmlns"))) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
}
1.1 xml-xalan/java/src/org/apache/xpath/domapi/XPathNamespaceImpl.java
Index: XPathNamespaceImpl.java
===================================================================
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, Lotus
* Development Corporation., http://www.lotus.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xpath.domapi;
import org.w3c.dom.xpath.XPathNamespace;
import org.w3c.dom.Attr;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
*
* <meta name="usage" content="experimental"/>
*
* The <code>XPathNamespace</code> interface is returned by
* <code>XPathResult</code> interfaces to represent the XPath namespace node
* type that DOM lacks. There is no public constructor for this node type.
* Attempts to place it into a hierarchy or a NamedNodeMap result in a
* <code>DOMException</code> with the code <code>HIERARCHY_REQUEST_ERR</code>
* . This node is read only, so methods or setting of attributes that would
* mutate the node result in a DOMException with the code
* <code>NO_MODIFICATION_ALLOWED_ERR</code>.
* <p>The core specification describes attributes of the <code>Node</code>
* interface that are different for different node node types but does not
* describe <code>XPATH_NAMESPACE_NODE</code>, so here is a description of
* those attributes for this node type. All attributes of <code>Node</code>
* not described in this section have a <code>null</code> or
* <code>false</code> value.
* <p><code>ownerDocument</code> matches the <code>ownerDocument</code> of the
* <code>ownerElement</code> even if the element is later adopted.
* <p><code>prefix</code> is the prefix of the namespace represented by the
* node.
* <p><code>nodeName</code> is the same as <code>prefix</code>.
* <p><code>nodeType</code> is equal to <code>XPATH_NAMESPACE_NODE</code>.
* <p><code>namespaceURI</code> is the namespace URI of the namespace
* represented by the node.
* <p><code>adoptNode</code>, <code>cloneNode</code>, and
* <code>importNode</code> fail on this node type by raising a
* <code>DOMException</code> with the code <code>NOT_SUPPORTED_ERR</code>.In
* future versions of the XPath specification, the definition of a namespace
* node may be changed incomatibly, in which case incompatible changes to
* field values may be required to implement versions beyond XPath 1.0.
* <p>See also the <a href='http://www.w3.org/2002/08/WD-DOM-Level-3-XPath-20020820'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*
* This implementation wraps the DOM attribute node that contained the
* namespace declaration.
*/
public class XPathNamespaceImpl implements XPathNamespace {
// Node that XPathNamespaceImpl wraps
Node m_attributeNode = null;
/**
* Constructor for XPathNamespaceImpl.
*/
public XPathNamespaceImpl(Node node) {
m_attributeNode = node;
}
/**
* @see org.apache.xalan.dom3.xpath.XPathNamespace#getOwnerElement()
*/
public Element getOwnerElement() {
return ((Attr)m_attributeNode).getOwnerElement();
}
/**
* @see org.w3c.dom.Node#getNodeName()
*/
public String getNodeName() {
return m_attributeNode.getNodeName();
}
/**
* @see org.w3c.dom.Node#getNodeValue()
*/
public String getNodeValue() throws DOMException {
return m_attributeNode.getNodeValue();
}
/**
* @see org.w3c.dom.Node#setNodeValue(String)
*/
public void setNodeValue(String arg0) throws DOMException {
}
/**
* @see org.w3c.dom.Node#getNodeType()
*/
public short getNodeType() {
return XPathNamespace.XPATH_NAMESPACE_NODE;
}
/**
* @see org.w3c.dom.Node#getParentNode()
*/
public Node getParentNode() {
return m_attributeNode.getParentNode();
}
/**
* @see org.w3c.dom.Node#getChildNodes()
*/
public NodeList getChildNodes() {
return m_attributeNode.getChildNodes();
}
/**
* @see org.w3c.dom.Node#getFirstChild()
*/
public Node getFirstChild() {
return m_attributeNode.getFirstChild();
}
/**
* @see org.w3c.dom.Node#getLastChild()
*/
public Node getLastChild() {
return m_attributeNode.getLastChild();
}
/**
* @see org.w3c.dom.Node#getPreviousSibling()
*/
public Node getPreviousSibling() {
return m_attributeNode.getPreviousSibling();
}
/**
* @see org.w3c.dom.Node#getNextSibling()
*/
public Node getNextSibling() {
return m_attributeNode.getNextSibling();
}
/**
* @see org.w3c.dom.Node#getAttributes()
*/
public NamedNodeMap getAttributes() {
return m_attributeNode.getAttributes();
}
/**
* @see org.w3c.dom.Node#getOwnerDocument()
*/
public Document getOwnerDocument() {
return m_attributeNode.getOwnerDocument();
}
/**
* @see org.w3c.dom.Node#insertBefore(Node, Node)
*/
public Node insertBefore(Node arg0, Node arg1) throws DOMException {
return null;
}
/**
* @see org.w3c.dom.Node#replaceChild(Node, Node)
*/
public Node replaceChild(Node arg0, Node arg1) throws DOMException {
return null;
}
/**
* @see org.w3c.dom.Node#removeChild(Node)
*/
public Node removeChild(Node arg0) throws DOMException {
return null;
}
/**
* @see org.w3c.dom.Node#appendChild(Node)
*/
public Node appendChild(Node arg0) throws DOMException {
return null;
}
/**
* @see org.w3c.dom.Node#hasChildNodes()
*/
public boolean hasChildNodes() {
return false;
}
/**
* @see org.w3c.dom.Node#cloneNode(boolean)
*/
public Node cloneNode(boolean arg0) {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR,null);
}
/**
* @see org.w3c.dom.Node#normalize()
*/
public void normalize() {
m_attributeNode.normalize();
}
/**
* @see org.w3c.dom.Node#isSupported(String, String)
*/
public boolean isSupported(String arg0, String arg1) {
return m_attributeNode.isSupported(arg0, arg1);
}
/**
* @see org.w3c.dom.Node#getNamespaceURI()
*/
public String getNamespaceURI() {
return m_attributeNode.getNamespaceURI();
}
/**
* @see org.w3c.dom.Node#getPrefix()
*/
public String getPrefix() {
return m_attributeNode.getPrefix();
}
/**
* @see org.w3c.dom.Node#setPrefix(String)
*/
public void setPrefix(String arg0) throws DOMException {
}
/**
* @see org.w3c.dom.Node#getLocalName()
*/
public String getLocalName() {
return m_attributeNode.getLocalName();
}
/**
* @see org.w3c.dom.Node#hasAttributes()
*/
public boolean hasAttributes() {
return m_attributeNode.hasAttributes();
}
}
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