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/*
* Copyright (c) 2004, Stefan Walter
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * 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.
* * The names of contributors to this software may not be
* used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS 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
* COPYRIGHT OWNER OR 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.
*
*
* CONTRIBUTORS
* Stef Walter <stef@memberwebs.com>
*
*/
package com.memberwebs.ldapxml.map;
import java.io.IOException;
import java.util.Map;
import java.util.Set;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;
/**
* The in memory representation of an LX map.
*
* @author stef@memberwebs.com
* @version 0.5
*/
public class LXMap
extends LXBase
{
// Cache of the name map
private Map m_nameMap;
// Cache of the name set
private Set m_nameSet;
// Whether to use the nameset or not
boolean m_hasInclusive;
/**
* Constructs a new LXMap object.
*/
LXMap(Map nameMap, Set nameSet)
{
super(null);
m_nameMap = nameMap;
m_nameSet = nameSet;
m_hasInclusive = false;
}
/**
* Get an entry in this LX map by name.
*
* @param name The entry name.
* @return The entry, or null if no such entry is present
*/
public LXEntry getEntry(String name)
{
LXEntry entry = (LXEntry)getChild(name);
if(entry != null && !entry.isUseable())
entry = null;
return entry;
}
/**
* 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.
*/
public final Set getNameSet()
{
return m_hasInclusive ? null : m_nameSet;
}
/**
* Load an LX map from an XML data stream
*
* @param source The source of the XML data.
*/
public static LXMap 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);
LXMap map = handler.getMap();
return map;
}
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 static LXMap loadMap(String uri)
throws LXMapException, IOException
{
return loadMap(new InputSource(uri));
}
}
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