Well here it is... what do ya think?
package org.apache.turbine.opl.mapping;
/*
* Copyright (c) 1997-1999 The Java Apache Project. 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. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Java Apache
* Project for use in the Apache JServ servlet engine project
* <http://java.apache.org/>."
*
* 4. The names "Apache JServ", "Apache JServ Servlet Engine", "Turbine",
* "Apache Turbine", "Turbine Project", "Apache Turbine Project" and
* "Java Apache Project" must not be used to endorse or promote products
* derived from this software without prior written permission.
*
* 5. Products derived from this software may not be called "Apache JServ"
* nor may "Apache" nor "Apache JServ" appear in their names without
* prior written permission of the Java Apache Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Java Apache
* Project for use in the Apache JServ servlet engine project
* <http://java.apache.org/>."
*
* THIS SOFTWARE IS PROVIDED BY THE JAVA APACHE PROJECT "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 JAVA APACHE PROJECT 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 Java Apache Group. For more information
* on the Java Apache Project and the Apache JServ Servlet Engine project,
* please see <http://java.apache.org/>.
*
@author Scott C. Tavares <a
href="mailto:[EMAIL PROTECTED]">[EMAIL PROTECTED]</a>
*/
// OPaL Classes
import org.apache.turbine.opl.api.*;
import org.apache.turbine.opl.mapping.*;
import org.apache.turbine.opl.database.PersistenceBroker;
// Turbine Classes
import org.apache.turbine.util.Log;
import org.apache.turbine.util.TurbineResources;
// Xerces Classes
import org.w3c.dom.NodeList;
import org.w3c.dom.NamedNodeMap;
import org.apache.xerces.parsers.DOMParser;
import org.apache.xerces.dom.traversal.NodeIteratorImpl;
import org.apache.xerces.domx.traversal.*;
import org.apache.xerces.dom.DocumentImpl;
import org.apache.xerces.dom.NodeImpl;
/**
* This class implements the DOM XML Paser from
* the Apache Xerces Project. This class also functions
* as its name implies... ClassMap factory for OPaL ClassMaps
* objects.
*/
public class ClassMapFactory
{
private static ClassMapFactory instance;
// OPaL Classes
private PersistenceBroker persistenceBroker = null;
private ClassMap classMap =null;
private AttributeMap attributeMap =null;
private ColumnMap columnMap =null;
private TableMap tableMap =null;
/**
* FIXME: move to a properties file as per
* Brett McLaughlin <[EMAIL PROTECTED]>
*/
private static final String OPALCLASSMAPS = "OPaLClassMaps";
private static final String CLASSMAP = "ClassMap";
private static final String ATTRIBUTEMAP = "AttributeMap";
private static final String COLUMNMAP = "ColumnMap";
private static final String TABLEMAP = "TableMap";
private static final String NAME = "Name";
private static final String PROXY = "Proxy";
private static final String PKEY = "PKey";
private DOMParser parser=null;
private DocumentImpl document=null;
private NodeIteratorImpl iterator=null;
private ClassMapFactory(PersistenceBroker persistenceBroker)
{
this.persistenceBroker = persistenceBroker;
}
public static ClassMapFactory getInstance(PersistenceBroker
persistenceBroker)
{
if (instance == null)
{
synchronized (ClassMapFactory.class)
{
if (instance == null)
{
instance = new ClassMapFactory(persistenceBroker);
}
}
}
return instance;
}
/**
* This is the primary function of this class
* it takes a string that names the source
* XML File parses it and create the ClassMaps
* accordingly.
*
*<p>
* FIXME: Add an overloaded method that
* takes a URI (DynamicURI) as a
* parameter.
*<p>
* @param xmlFile a string with the name and location of an XML file.
*<p>
*/
public void buildClassMaps(String xmlFile)
try{
parser = new DOMParser();
parser.parse(xmlFile);
document = (DocumentImpl)parser.getDocument();
iterator = (NodeIteratorImpl)document.createNodeIterator(
document,
NodeFilter.SHOW_ELEMENT,
null,
true);
processXMLNodes(iterator);
}catch(Exception
Log.error(e);
}finally{
//
}
}
/**
* Recursively process the node of an XML file
* and creates the matching classes and joins them
* together.
*
*@param iterator an NodeIteratorImpl from Xerces
*
*/
private void processXMLNodes(NodeIteratorImpl iterator)
{
try{
NodeImpl node = (NodeImpl)iterator.nextNode();
if(node!=null)
if( node.getNodeName().equals(OPALCLASSMAPS))
{
System.out.println(OPALCLASSMAPS);
processXMLNodes(iterator);
}else if( node.getNodeName().equals(CLASSMAP))
NamedNodeMap attributes = node.getAttributes();
classMap = new ClassMap(attributes.getNamedItem(NAME).getNodeValue());
classMap.setName(attributes.getNamedItem(NAME).getNodeValue());
System.out.println("\t" + node.getNodeName() + ": " +
attributes.getNamedItem(NAME).getNodeValue());
persistenceBroker.addClassMap(classMap);
processXMLNodes(iterator); // Goto the next node
}else if ( node.getNodeName().equals(ATTRIBUTEMAP) )
NamedNodeMap attributes = node.getAttributes();
attributeMap = new
ttributeMap( attributes.getNamedItem(NAME).getNodeValue());
System.out.println("\t\t" + node.getNodeName() + ": " +
attributes.getNamedItem(NAME).getNodeValue());
classMap.addAttributeMap(attributeMap);
processXMLNodes(iterator); // Goto the next node
}else if ( node.getNodeName().equals(COLUMNMAP))
NamedNodeMap attributes = node.getAttributes();
columnMap = new
olumnMap( attributes.getNamedItem(NAME).getNodeValue());
System.out.println("\t\t\t" + node.getNodeName() + ": " +
attributes.getNamedItem(NAME).getNodeValue());
if(attributes.getNamedItem(PKEY).getNodeValue().equals("True"))
{
columnMap.setIsKeyColumn(true);
}else
{
columnMap.setIsKeyColumn(false);
}
attributeMap.setColumnMap(columnMap);
processXMLNodes(iterator); // Goto the next node
}else if ( node.getNodeName().equals(TABLEMAP) )
NamedNodeMap attributes = node.getAttributes();
tableMap = new
ableMap( attributes.getNamedItem(NAME).getNodeValue());
System.out.println("\t\t\t\t" + node.getNodeName() + ": " +
attributes.getNamedItem(NAME).getNodeValue());
columnMap.setTableMap(tableMap);
processXMLNodes(iterator); // Goto the next node
}
}
}catch(Exception e){
e.printStackTrace();
}
}
}
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