/*
* Copyright (2007-2012) Schibsted ASA
* This file is part of Possom.
*
* Possom is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Possom is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Possom. If not, see <http://www.gnu.org/licenses/>.
*
*/
package no.sesat.search.run.transform;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import no.sesat.commons.ioc.BaseContext;
import no.sesat.commons.ioc.ContextWrapper;
import no.sesat.search.mode.SearchModeFactory;
import no.sesat.search.run.transform.AbstractRunTransformerConfig.Controller;
import no.sesat.search.site.config.SiteClassLoaderFactory;
import no.sesat.search.site.config.Spi;
/** Obtain a working RunTransformers.
*
*
* $Id$
*/
public final class RunTransformerFactory {
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
/** Creates a new instance of RunTransformerFactory */
private RunTransformerFactory() {
}
// Public --------------------------------------------------------
/**
*
* @param config
* @return
*/
public static RunTransformer getController(
final RunTransformer.Context context,
final RunTransformerConfig config){
final String name = "no.sesat.search.run.transform."
+ config.getClass().getAnnotation(Controller.class).value();
try{
final SiteClassLoaderFactory.Context ctlContext = ContextWrapper.wrap(
SiteClassLoaderFactory.Context.class,
new BaseContext() {
public Spi getSpi() {
return Spi.RUN_TRANSFORM_CONFIG;
}
},
context
);
final ClassLoader ctlLoader = SiteClassLoaderFactory.instanceOf(ctlContext).getClassLoader();
@SuppressWarnings("unchecked")
final Class<? extends RunTransformer> cls = (Class<? extends RunTransformer>)ctlLoader.loadClass(name);
final Constructor<? extends RunTransformer> constructor = cls.getConstructor(RunTransformerConfig.class);
return constructor.newInstance(config);
} catch (ClassNotFoundException ex) {
throw new IllegalArgumentException(ex);
} catch (NoSuchMethodException ex) {
throw new IllegalArgumentException(ex);
} catch (InvocationTargetException ex) {
throw new IllegalArgumentException(ex);
} catch (InstantiationException ex) {
throw new IllegalArgumentException(ex);
} catch (IllegalAccessException ex) {
throw new IllegalArgumentException(ex);
}
}
}