/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2009 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** 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.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.core.internal.persist.service;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
import org.rssowl.core.internal.Activator;
import org.rssowl.core.internal.persist.pref.DefaultScope;
import org.rssowl.core.internal.persist.pref.EclipseScope;
import org.rssowl.core.internal.persist.pref.EntityScope;
import org.rssowl.core.internal.persist.pref.GlobalScope;
import org.rssowl.core.persist.IEntity;
import org.rssowl.core.persist.pref.IPreferenceScope;
import org.rssowl.core.persist.pref.IPreferencesInitializer;
import org.rssowl.core.persist.service.IPreferenceService;
/**
* Provides access to all preference related classes.
*
* @author bpasero
*/
public class PreferenceServiceImpl implements IPreferenceService {
/* Extension Point: Preferences Initializer */
private static final String PREFERENCES_INITIALIZER_EXTENSION_POINT = "org.rssowl.core.PreferencesInitializer"; //$NON-NLS-1$
/* Scoped Preferences */
private final IPreferenceScope fDefaultScope;
private final IPreferenceScope fGlobalScope;
private final IPreferenceScope fEclipseScope;
/** */
public PreferenceServiceImpl() {
fDefaultScope = new DefaultScope();
fGlobalScope = new GlobalScope(fDefaultScope);
fEclipseScope = new EclipseScope(fDefaultScope);
initScopedPreferences();
}
/*
* @see
* org.rssowl.core.model.persist.pref.IPreferencesService#getDefaultScope()
*/
public IPreferenceScope getDefaultScope() {
return fDefaultScope;
}
/*
* @see
* org.rssowl.core.model.persist.pref.IPreferencesService#getGlobalScope()
*/
public IPreferenceScope getGlobalScope() {
return fGlobalScope;
}
/*
* @see org.rssowl.core.persist.service.IPreferenceService#getEclipseScope()
*/
public IPreferenceScope getEclipseScope() {
return fEclipseScope;
}
/*
* @see
* org.rssowl.core.model.persist.pref.IPreferencesService#getEntityScope(org
* .rssowl.core.model.persist.IEntity)
*/
public IPreferenceScope getEntityScope(IEntity entity) {
return new EntityScope(entity, fGlobalScope);
}
/* Init scoped preferences */
private void initScopedPreferences() {
/* Pass Service through Initializers */
IExtensionRegistry reg = Platform.getExtensionRegistry();
IConfigurationElement elements[] = reg.getConfigurationElementsFor(PREFERENCES_INITIALIZER_EXTENSION_POINT);
for (IConfigurationElement element : elements) {
try {
IPreferencesInitializer initializer = (IPreferencesInitializer) element.createExecutableExtension("class"); //$NON-NLS-1$
initializer.initialize(fDefaultScope);
} catch (CoreException e) {
Activator.getDefault().getLog().log(e.getStatus());
}
}
}
}