package com.dbxml.xml.dom;
/*
* dbXML - Native XML Database
* Copyright (c) 1999-2006 The dbXML Group, L.L.C.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* $Id: DOMProducer.java,v 1.6 2006/02/02 19:04:15 bradford Exp $
*/
import org.w3c.dom.*;
import com.dbxml.util.UTF8;
import com.dbxml.xml.QName;
import com.dbxml.xml.dtsm.Constants;
import com.dbxml.xml.dtsm.Consumer;
import com.dbxml.xml.dtsm.DocumentTable;
import com.dbxml.xml.dtsm.DocumentTableEntry;
import com.dbxml.xml.dtsm.Producer;
import java.util.Stack;
/**
* DOMProducer
*/
public final class DOMProducer extends Producer implements Consumer {
private Stack stack = new Stack();
private Document doc = DOMHelper.newDocument();
private Node node;
private Node context;
public DOMProducer(DocumentTable table) {
setDocumentTable(table);
}
public Node getNode() {
return node;
}
public void beginDocument(DocumentTableEntry entry) {
if ( node == null )
node = doc;
pushContext(doc);
}
public void endDocument(DocumentTableEntry entry) {
popContext();
}
public void beginElement(DocumentTableEntry entry) {
int symID = entry.getValID();
QName qname = symbols.getQName(symID);
String uri = qname.getURI();
Element elem;
if ( uri != null )
elem = doc.createElementNS(uri, qname.getName());
else
elem = doc.createElement(qname.getName());
if ( node == null )
node = elem;
if ( context != null )
context.appendChild(elem);
pushContext(elem);
while ( processor.peek().getTypeID() == Constants.OBJ_BEGIN_ATTRIBUTE )
attribute(processor.next());
}
public void endElement(DocumentTableEntry entry) {
popContext();
}
public void attribute(DocumentTableEntry entry) {
int symID = entry.getValID();
QName qname = symbols.getQName(symID);
String uri = qname.getURI();
StringBuffer sb = new StringBuffer();
do {
entry = processor.next();
if ( entry.getTypeID() == Constants.OBJ_TEXT ) {
int valID = entry.getValID();
sb.append(UTF8.toCharArray(table.getValue(valID)));
}
}
while ( entry.getTypeID() != Constants.OBJ_END_ATTRIBUTE );
Element elem = (Element)context;
if ( uri != null )
elem.setAttributeNS(uri, qname.getName(), sb.toString());
else
elem.setAttribute(qname.getName(), sb.toString());
}
public void procInst(DocumentTableEntry entry) {
int symID = entry.getValID();
QName qname = symbols.getQName(symID);
entry = processor.next();
int valID = entry.getValID();
String data = table.getValue(valID).toString();
processor.next(); // Eat the OBJ_END_PROCINST
ProcessingInstruction pi = doc.createProcessingInstruction(qname.getName(), data);
if ( node == null )
node = pi;
if ( context != null )
context.appendChild(pi);
}
public void text(DocumentTableEntry entry) {
int valID = entry.getValID();
String data = table.getValue(valID).toString();
Text text = doc.createTextNode(data);
if ( node == null )
node = text;
if ( context != null )
context.appendChild(text);
}
public void cdata(DocumentTableEntry entry) {
int valID = entry.getValID();
String data = table.getValue(valID).toString();
CDATASection cdata = doc.createCDATASection(data);
if ( node == null )
node = cdata;
if ( context != null )
context.appendChild(cdata);
}
public void comment(DocumentTableEntry entry) {
int valID = entry.getValID();
String data = table.getValue(valID).toString();
Comment comment = doc.createComment(data);
if ( node == null )
node = comment;
if ( context != null )
context.appendChild(comment);
}
public void entity(DocumentTableEntry entry) {
int symID = entry.getValID();
String name = symbols.getQName(symID).getName();
entry = processor.next(); // Get Public ID
int valID = entry.getValID();
String publicID = table.getValue(valID).toString();
entry = processor.next(); // Get System ID
valID = entry.getValID();
String systemID = table.getValue(valID).toString();
entry = processor.next(); // Get Notation Name
valID = entry.getValID();
String notation = table.getValue(valID).toString();
processor.next(); // Eat the OBJ_END_ENTITY
/** @todo Figure out how to create an Entity node with DOM */
}
public void notation(DocumentTableEntry entry) {
int symID = entry.getValID();
String name = symbols.getQName(symID).getName();
entry = processor.next(); // Get Public ID
int valID = entry.getValID();
String publicID = table.getValue(valID).toString();
entry = processor.next(); // Get System ID
valID = entry.getValID();
String systemID = table.getValue(valID).toString();
processor.next(); // Eat the OBJ_END_NOTATION
/** @todo Figure out how to create a Notation node with DOM */
}
public void docType(DocumentTableEntry entry) {
processor.next(); // Eat the OBJ_END_DOCTYPE
}
public void entityRef(DocumentTableEntry entry) {
/** @todo This */
}
private void pushContext(Node node) {
stack.push(context);
context = node;
}
private void popContext() {
context = (Node)stack.pop();
}
}