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package com.memberwebs.ldapxml;
import java.io.*;
import java.util.*;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import com.memberwebs.ldapxml.helpers.*;
/**
* The in memory representation of an LX map.
*
* @author nielsen@memberwebs.com
* @version 0.5
*/
public class LXMap
{
/**
* Constructs a new LXMap object.
*/
public LXMap()
{
m_root = null;
m_nameMap = null;
m_nameSet = null;
}
/**
* Get the root node of the LX map.
*
* @return The root.
*/
protected final LXRoot getRoot()
{
return m_root;
}
/**
* Load an LX map from an XML data stream
*
* @param source The source of the XML data.
*/
public void loadMap(InputSource source)
throws LXMapException, IOException
{
try
{
XMLReader xr = XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
// We require some form of validation on the document
// as our internal checks are lax
xr.setFeature("http://xml.org/sax/features/validation", true);
// Parse and load the map.
LXSAXHandler handler = new LXSAXHandler();
xr.setContentHandler(handler);
xr.setErrorHandler(handler);
xr.parse(source);
m_root = handler.getRoot();
m_nameMap = handler.getNameMap();
m_nameSet = handler.getNameSet();
}
catch(SAXException e)
{
Exception inside = e.getException();
if(inside != null)
{
inside.printStackTrace();
if(inside instanceof LXMapException)
throw (LXMapException)inside;
else if(inside.getMessage() != null)
throw new LXMapException(inside.getMessage());
else
throw new LXMapException(inside.getClass().getName());
}
throw new LXMapException(e.getMessage());
}
}
/**
* Load an LX map from a uri.
*
* @param uri The fully qualified uri of the file.
*/
public void loadMap(String uri)
throws LXMapException, IOException
{
loadMap(new InputSource(uri));
}
/**
* Get public (XML) to private (LDAP) name mappings
* for the first entry.
*
* @return The name map.
*/
public final Map getNameMap()
{
return m_nameMap;
}
/**
* Get the minimum set of LDAP attributes required
* to retrieve items via this map.
*/
protected final Set getNameSet()
{
return m_nameSet;
}
public final boolean isLoaded()
{
return m_root != null;
}
// The root of the LX map
private LXRoot m_root;
// Cache of the name map
private Map m_nameMap;
// Cache of the name set
private Set m_nameSet;
}
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