/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.felix.webconsole.internal.compendium;
import java.io.PrintWriter;
import org.apache.felix.webconsole.internal.AbstractConfigurationPrinter;
import org.apache.felix.webconsole.internal.misc.ConfigurationRender;
import org.osgi.framework.ServiceReference;
import org.osgi.service.prefs.BackingStoreException;
import org.osgi.service.prefs.Preferences;
import org.osgi.service.prefs.PreferencesService;
/**
* PreferencesConfigurationPrinter uses the {@link Preferences} service
* to print the store bundle preferences.
*/
public class PreferencesConfigurationPrinter extends AbstractConfigurationPrinter
{
private static final String TITLE = "Preferences";
/**
* @see org.apache.felix.webconsole.ConfigurationPrinter#getTitle()
*/
public String getTitle()
{
return TITLE;
}
/**
* @see org.apache.felix.webconsole.ConfigurationPrinter#printConfiguration(java.io.PrintWriter)
*/
public void printConfiguration(PrintWriter printWriter)
{
ServiceReference sr = getBundleContext().getServiceReference(
PreferencesService.class.getName());
if (sr == null)
{
printWriter.println("Status: Preferences Service not available");
}
else
{
PreferencesService ps = (PreferencesService) getBundleContext().getService(sr);
try
{
printPreferences(printWriter, ps.getSystemPreferences());
String[] users = ps.getUsers();
for (int i = 0; users != null && i < users.length; i++)
{
printWriter.println("*** User Preferences " + users[i] + ":");
printPreferences(printWriter, ps.getUserPreferences(users[i]));
}
}
catch (BackingStoreException bse)
{
// todo or not :-)
}
finally
{
getBundleContext().ungetService(sr);
}
}
}
private static final void printPreferences(PrintWriter pw, Preferences prefs)
throws BackingStoreException
{
final String[] children = prefs.childrenNames();
final String[] keys = prefs.keys();
if (children.length == 0 && keys.length == 0)
{
pw.println("Status: No Preferences available");
}
else
{
for (int i = 0; i < children.length; i++)
{
printPreferences(pw, prefs.node(children[i]));
}
for (int i = 0; i < keys.length; i++)
{
ConfigurationRender.infoLine(pw, null, prefs.absolutePath() + "/"
+ keys[i], prefs.get(keys[i], null));
}
}
pw.println();
}
}