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/*****************************************************************************
* Copyright (c) 2016 CEA LIST 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:
* Nicolas FAUVERGUE (ALL4TEC) nicolas.fauvergue@all4tec.net - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.internationalization.common;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.IScopeContext;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.papyrus.infra.core.log.LogHelper;
import org.eclipse.papyrus.infra.core.resource.PapyrusProjectScope;
import org.eclipse.papyrus.infra.ui.preferences.PapyrusScopedPreferenceStore;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.ui.preferences.ScopedPreferenceStore;
import org.osgi.framework.BundleContext;
/**
* The activator class controls the plug-in life cycle.
*/
public class Activator extends AbstractUIPlugin {
/**
* The plug-in ID.
*/
public static final String PLUGIN_ID = "org.eclipse.papyrus.infra.internationalization.common"; //$NON-NLS-1$
/**
* The internationalization preference node label.
*/
public static final String INTERNATIONALIZATION_NODE_LABEL = "internationalization"; //$NON-NLS-1$
/**
* The shared instance.
*/
private static Activator plugin;
/**
* The log helper.
*/
public static LogHelper log;
/**
* Storage for preferences. Use a list of preference store (one preference
* store by internationalization of a project).
*/
private List<IPreferenceStore> preferencesStore;
/**
* The constructor
*/
public Activator() {
preferencesStore = new ArrayList<IPreferenceStore>(0);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
*/
@Override
public void start(final BundleContext context) throws Exception {
super.start(context);
plugin = this;
log = new LogHelper(this);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
*/
@Override
public void stop(final BundleContext context) throws Exception {
plugin = null;
super.stop(context);
}
/**
* Get the preference store and create it if necessary.
*
* @param project
* The current project
* @param papyrusProjectName
* The current papyrus project name.
* @return The preference store.
*/
public IPreferenceStore getInternationalizationPreferenceStore(final IProject project,
final String papyrusProjectName) {
IPreferenceStore result = null;
final IScopeContext scope = new PapyrusProjectScope(project, papyrusProjectName);
if (!preferencesStore.isEmpty()) {
final IEclipsePreferences scopePreferenceNode = scope.getNode(INTERNATIONALIZATION_NODE_LABEL);
final Iterator<IPreferenceStore> preferenceStoreIterator = preferencesStore.iterator();
while (preferenceStoreIterator.hasNext() && null == result) {
final IPreferenceStore preferenceStore = preferenceStoreIterator.next();
if (preferenceStore instanceof PapyrusScopedPreferenceStore) {
final IEclipsePreferences[] preferenceNodes = ((PapyrusScopedPreferenceStore) preferenceStore)
.getPreferenceNodes(false);
for (int index = 0; index < preferenceNodes.length && null == result; index++) {
if (preferenceNodes[index].equals(scopePreferenceNode)) {
result = preferenceStore;
}
}
}
}
}
if (null == result) {
result = new PapyrusScopedPreferenceStore(scope, INTERNATIONALIZATION_NODE_LABEL);
preferencesStore.add(result); // $NON-NLS-1$
}
return result;
}
/**
* Get the first preference store if existing, else a scoped preference
* store must be created and added to the list of preferences store.
*
* @return The preference store.
*/
public IPreferenceStore getInternationalizationPreferenceStore() {
// Create the preference store lazily.
if (preferencesStore.isEmpty()) {
preferencesStore.add(new ScopedPreferenceStore(InstanceScope.INSTANCE, getBundle().getSymbolicName()));
}
return preferencesStore.get(0);
}
/**
* Returns the shared instance
*
* @return the shared instance
*/
public static Activator getDefault() {
return plugin;
}
}
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