/*******************************************************************************
* Copyright 2009, 2010 Innovation Gate GmbH. All Rights Reserved.
*
* This file is part of the OpenWGA server platform.
*
* OpenWGA is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* In addition, a special exception is granted by the copyright holders
* of OpenWGA called "OpenWGA plugin exception". You should have received
* a copy of this exception along with OpenWGA in file COPYING.
* If not, see <http://www.openwga.com/gpl-plugin-exception>.
*
* OpenWGA 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenWGA in file COPYING.
* If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package de.innovationgate.wgpublisher.webtml.utils;
import java.util.Iterator;
import de.innovationgate.utils.ImageScaler;
import de.innovationgate.utils.MimeTypeSpecificImageScaler;
import de.innovationgate.webgate.api.WGNotSupportedException;
import de.innovationgate.wga.modules.ModuleDefinition;
import de.innovationgate.wga.modules.ModuleInstantiationException;
import de.innovationgate.wga.modules.types.ImageScalerModuleType;
import de.innovationgate.wga.modules.types.MimeTypeSpecificImageScalerModuleType;
import de.innovationgate.wgpublisher.WGACore;
public class ImageScalerFactory {
public static ImageScaler createImageScaler(WGACore core) throws WGNotSupportedException, ModuleInstantiationException {
Iterator<ModuleDefinition> scalerModules = core.getModuleRegistry().getModulesForType(ImageScalerModuleType.class).values().iterator();
if (!scalerModules.hasNext()) {
throw new WGNotSupportedException("No image scaler implementation available");
}
ModuleDefinition scalerDef = scalerModules.next();
ImageScaler scaler = (ImageScaler) core.getModuleRegistry().instantiate(scalerDef);
return scaler;
}
public static MimeTypeSpecificImageScaler createMimeTypeSpecificImageScaler(WGACore core, String mimeType) throws WGNotSupportedException, ModuleInstantiationException {
ModuleDefinition scalerDef = core.getModuleRegistry().getModuleDefinitionByKey(MimeTypeSpecificImageScalerModuleType.class, mimeType);
if (scalerDef == null) {
throw new WGNotSupportedException("No image scaler implementation available for mimetype " + mimeType);
}
MimeTypeSpecificImageScaler scaler = (MimeTypeSpecificImageScaler) core.getModuleRegistry().instantiate(scalerDef);
return scaler;
}
}