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/*******************************************************************************
* Copyright (c) 2011 BestSolution.at and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
******************************************************************************/
package org.eclipse.e4.tools.services.impl;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Locale;
import org.eclipse.e4.core.di.suppliers.ExtendedObjectSupplier;
import org.eclipse.e4.core.di.suppliers.IObjectDescriptor;
import org.eclipse.e4.core.di.suppliers.IRequestor;
import org.eclipse.e4.core.internal.contexts.ContextObjectSupplier;
import org.eclipse.e4.core.internal.di.Requestor;
import org.eclipse.e4.core.services.translation.TranslationService;
import org.eclipse.e4.tools.services.IMessageFactoryService;
import org.eclipse.osgi.service.localization.BundleLocalization;
public class TranslationObjectSupplier extends ExtendedObjectSupplier {
@Override
public Object get(IObjectDescriptor descriptor, IRequestor requestor,
boolean track, boolean group) {
Class<?> descriptorsClass = getDesiredClass(descriptor.getDesiredType());
Requestor req = (Requestor) requestor;
ContextObjectSupplier sub = (ContextObjectSupplier) req
.getPrimarySupplier();
String locale = (String) sub.getContext().get(TranslationService.LOCALE);
locale = locale == null ? Locale.getDefault().toString() : locale;
BundleLocalization localization = sub.getContext().get(BundleLocalization.class);
IMessageFactoryService factoryService = sub.getContext().get(IMessageFactoryService.class);
try {
return factoryService.createInstance(locale, descriptorsClass, localization);
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
private Class<?> getDesiredClass(Type desiredType) {
if (desiredType instanceof Class<?>)
return (Class<?>) desiredType;
if (desiredType instanceof ParameterizedType) {
Type rawType = ((ParameterizedType) desiredType).getRawType();
if (rawType instanceof Class<?>)
return (Class<?>) rawType;
}
return null;
}
}
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