/*
* 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.cm.integration;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import org.apache.felix.cm.integration.helper.SynchronousTestListener;
import org.apache.felix.cm.integration.helper.TestListener;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.junit.JUnit4TestRunner;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleException;
import org.osgi.framework.Constants;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceListener;
import org.osgi.framework.ServiceReference;
import org.osgi.service.cm.ConfigurationAdmin;
import org.osgi.service.cm.ConfigurationEvent;
import org.osgi.service.cm.ConfigurationListener;
import org.osgi.service.cm.SynchronousConfigurationListener;
@RunWith(JUnit4TestRunner.class)
public class FELIX2813_ConfigurationAdminStartupTest extends ConfigurationTestBase implements ServiceListener
{
@Test
public void testAddConfigurationWhenConfigurationAdminStarts() throws InvalidSyntaxException, BundleException
{
List<Bundle> bundles = new ArrayList<Bundle>();
ServiceReference[] refs = configAdminTracker.getServiceReferences();
if ( refs != null )
{
for ( ServiceReference ref : refs )
{
bundles.add( ref.getBundle() );
ref.getBundle().stop();
}
}
final TestListener listener = new TestListener();
bundleContext.registerService( ConfigurationListener.class.getName(), listener, null );
final TestListener syncListener = new SynchronousTestListener();
bundleContext.registerService( SynchronousConfigurationListener.class.getName(), syncListener, null );
final TestListener syncListenerAsync = new SynchronousTestListener();
bundleContext.registerService( ConfigurationListener.class.getName(), syncListenerAsync, null );
bundleContext.addServiceListener( this, "(" + Constants.OBJECTCLASS + "=" + ConfigurationAdmin.class.getName()
+ ")" );
for ( Bundle bundle : bundles )
{
bundle.start();
}
/*
* Look at the console output for the following exception:
*
* *ERROR* Unexpected problem executing task
* java.lang.NullPointerException: reference and pid must not be null
* at org.osgi.service.cm.ConfigurationEvent.<init>(ConfigurationEvent.java:120)
* at org.apache.felix.cm.impl.ConfigurationManager$FireConfigurationEvent.run(ConfigurationManager.java:1818)
* at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:104)
* at java.lang.Thread.run(Thread.java:680)
*
* It is in fact the service reference that is still null, because the service registration
* has not been 'set' yet.
*
* This following code will ensure the situation did not occurr and the
* event has effectively been sent. The eventSeen flag is set by the
* configurationEvent method when the event for the test PID has been
* received. If the flag is not set, we wait at most 2 seconds for the
* event to arrive. If the event does not arrive by then, the test is
* assumed to have failed. This will rather generate false negatives
* (on slow machines) than false positives.
*/
delay();
listener.assertEvent( ConfigurationEvent.CM_UPDATED, "test", null, true, 1 );
syncListener.assertEvent( ConfigurationEvent.CM_UPDATED, "test", null, false, 1 );
syncListenerAsync.assertEvent( ConfigurationEvent.CM_UPDATED, "test", null, true, 1 );
}
public void serviceChanged( ServiceEvent event )
{
if ( event.getType() == ServiceEvent.REGISTERED )
{
ServiceReference ref = event.getServiceReference();
ConfigurationAdmin ca = ( ConfigurationAdmin ) bundleContext.getService( ref );
try
{
org.osgi.service.cm.Configuration config = ca.getConfiguration( "test" );
Hashtable<String, Object> props = new Hashtable<String, Object>();
props.put( "abc", "123" );
config.update( props );
}
catch ( IOException e )
{
}
}
}
}