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/**
* Copyright (C) 2011-2015 The XDocReport Team
*
* All rights reserved.
*
* 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.
*/
package fr.opensagres.xdocreport.converter;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import fr.opensagres.xdocreport.converter.discovery.IConverterDiscovery;
import fr.opensagres.xdocreport.core.logging.LogUtils;
import fr.opensagres.xdocreport.core.registry.AbstractRegistry;
/**
* {@link IConverter} registry.
*/
public class ConverterRegistry
extends AbstractRegistry
{
private static final ConverterRegistry INSTANCE = new ConverterRegistry();
/**
* Logger for this class
*/
private static final Logger LOGGER = LogUtils.getLogger( ConverterRegistry.class.getName() );
private Map converters = new HashMap();
public ConverterRegistry()
{
super( IConverterDiscovery.class );
}
public static ConverterRegistry getRegistry()
{
return INSTANCE;
}
public IConverter findConverter( Options options )
throws XDocConverterException
{
return findConverter( options.getFrom(), options.getTo(), options.getVia() );
}
public IConverter findConverter( String from, String to, String via )
throws XDocConverterException
{
return internalFindConverter( from, to, via, true );
}
public IConverter getConverter( Options options )
{
return getConverter( options.getFrom(), options.getTo(), options.getVia() );
}
public IConverter getConverter( String from, String to, String via )
{
try
{
return internalFindConverter( from, to, via, false );
}
catch ( XDocConverterException e )
{
if ( LOGGER.isLoggable( Level.FINE ) )
{
LOGGER.fine( e.getMessage() );
}
return null;
}
}
public ConverterFrom getConverterFrom( String from )
{
initializeIfNeeded();
return converters.get( from );
}
public Set getFroms()
{
initializeIfNeeded();
return converters.keySet();
}
private IConverter internalFindConverter( String from, String to, String via, boolean throwError )
throws XDocConverterException
{
initializeIfNeeded();
ConverterFrom fromConverters = getConverterFrom( from );
if ( fromConverters == null )
{
if ( throwError )
{
String msg = String.format( "Cannot find converters from=%s", from );
LOGGER.severe( msg );
throw new XDocConverterException( msg );
}
return null;
}
ConverterTo toConverters = fromConverters.getConverterTo( to );
if ( toConverters == null )
{
if ( throwError )
{
String msg = String.format( "Cannot find converters for to=%s for from=%s", to, from );
LOGGER.severe( msg );
throw new XDocConverterException( msg );
}
return null;
}
if ( via == null )
{
IConverter converter = toConverters.getDefaultConverter();
if ( throwError && converter == null )
{
if ( throwError )
{
String msg = String.format( "Cannot find converters for to=%s for from=%s", to, from );
LOGGER.severe( msg );
throw new XDocConverterException( msg );
}
}
return converter;
}
IConverter converter = toConverters.getConverter( via );
if ( converter == null )
{
if ( throwError )
{
String msg = String.format( "Cannot find converters via %s for to=%s for from=%s", via, to, from );
LOGGER.severe( msg );
throw new XDocConverterException( msg );
}
}
return converter;
}
@Override
protected void doDispose()
{
this.converters.clear();
}
@Override
protected boolean registerInstance( IConverterDiscovery discovery )
{
String from = discovery.getFrom();
String to = discovery.getTo();
String via = discovery.getVia();
IConverter converter = discovery.getConverter();
ConverterFrom converterFrom = converters.get( from );
if ( converterFrom == null )
{
converterFrom = new ConverterFrom( from );
converters.put( converterFrom.getFrom(), converterFrom );
}
converterFrom.addConverter( to, via, converter );
return true;
}
}
