package org.codehaus.plexus.component.configurator.converters.composite;
/*
* The MIT License
*
* Copyright (c) 2004, The Codehaus
*
* 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.
*/
import org.codehaus.plexus.component.configurator.ComponentConfigurationException;
import org.codehaus.plexus.component.configurator.ConfigurationListener;
import org.codehaus.plexus.component.configurator.converters.AbstractConfigurationConverter;
import org.codehaus.plexus.component.configurator.converters.ComponentValueSetter;
import org.codehaus.plexus.component.configurator.converters.lookup.ConverterLookup;
import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
import org.codehaus.plexus.configuration.PlexusConfiguration;
import org.codehaus.plexus.logging.Logger;
import org.codehaus.plexus.util.ReflectionUtils;
import java.lang.reflect.Field;
import java.util.Collection;
import java.util.Dictionary;
import java.util.Map;
/**
* @author <a href="mailto:michal@codehaus.org">Michal Maczka</a>
* @version $Id: ObjectWithFieldsConverter.java 2634 2005-10-08 06:33:08Z brett $
*/
public class ObjectWithFieldsConverter
extends AbstractConfigurationConverter
{
/**
* @param type
* @return
* @todo I am not sure what should go into this method
*/
public boolean canConvert( Class type )
{
boolean retValue = true;
if ( Dictionary.class.isAssignableFrom( type ) )
{
retValue = false;
}
else if ( Map.class.isAssignableFrom( type ) )
{
retValue = false;
}
else if ( Collection.class.isAssignableFrom( type ) )
{
retValue = false;
}
return retValue;
}
public Object fromConfiguration( ConverterLookup converterLookup, PlexusConfiguration configuration, Class type,
Class baseType, ClassLoader classLoader, ExpressionEvaluator expressionEvaluator,
ConfigurationListener listener )
throws ComponentConfigurationException
{
Object retValue = fromExpression( configuration, expressionEvaluator, type );
if ( retValue == null )
{
try
{
// it is a "composite" - we compose it from its children. It does not have a value of its own
Class implementation = getClassForImplementationHint( type, configuration, classLoader );
retValue = instantiateObject( implementation );
processConfiguration( converterLookup, retValue, classLoader, configuration, expressionEvaluator,
listener );
}
catch ( ComponentConfigurationException e )
{
if ( e.getFailedConfiguration() == null )
{
e.setFailedConfiguration( configuration );
}
throw e;
}
}
return retValue;
}
public void processConfiguration( ConverterLookup converterLookup, Object object, ClassLoader classLoader,
PlexusConfiguration configuration )
throws ComponentConfigurationException
{
processConfiguration( converterLookup, object, classLoader, configuration, null );
}
public void processConfiguration( ConverterLookup converterLookup, Object object, ClassLoader classLoader,
PlexusConfiguration configuration, ExpressionEvaluator expressionEvaluator )
throws ComponentConfigurationException
{
processConfiguration( converterLookup, object, classLoader, configuration, expressionEvaluator, null );
}
public void processConfiguration( ConverterLookup converterLookup, Object object, ClassLoader classLoader,
PlexusConfiguration configuration, ExpressionEvaluator expressionEvaluator,
ConfigurationListener listener )
throws ComponentConfigurationException
{
int items = configuration.getChildCount();
for ( int i = 0; i < items; i++ )
{
PlexusConfiguration childConfiguration = configuration.getChild( i );
String elementName = childConfiguration.getName();
ComponentValueSetter valueSetter = new ComponentValueSetter( fromXML( elementName ), object,
converterLookup, listener );
valueSetter.configure( childConfiguration, classLoader, expressionEvaluator );
}
}
}