/*
* 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.sigil.common.junit;
import java.lang.reflect.Method;
import java.util.LinkedList;
import java.util.List;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
import junit.framework.TestCase;
public abstract class AbstractSigilTestCase extends TestCase
{
private final static List<ServiceTracker> trackers = new LinkedList<ServiceTracker>();
private BundleContext ctx;
public void setBundleContext(BundleContext ctx)
{
this.ctx = ctx;
}
protected BundleContext getBundleContext()
{
return ctx;
}
@Override
protected void setUp()
{
for (Class<?> c : getReferences())
{
ServiceTracker t = createBindTracker(c);
t.open();
trackers.add(t);
}
}
@Override
protected void tearDown()
{
for (ServiceTracker t : trackers)
{
t.close();
}
trackers.clear();
}
private ServiceTracker createBindTracker(final Class<?> c)
{
return new ServiceTracker(ctx, c.getName(), new ServiceTrackerCustomizer()
{
public Object addingService(ServiceReference reference)
{
Object o = ctx.getService(reference);
Method m = getBindMethod(c);
if (m != null)
invoke(m, o);
return o;
}
public void modifiedService(ServiceReference reference, Object service)
{
}
public void removedService(ServiceReference reference, Object service)
{
Method m = getUnbindMethod(c);
if (m != null)
invoke(m, service);
ctx.ungetService(reference);
}
});
}
private void invoke(Method m, Object o)
{
try
{
m.invoke(this, new Object[] { o });
}
catch (Exception e)
{
throw new IllegalStateException("Failed to invoke binding method " + m, e);
}
}
protected abstract Class<?>[] getReferences();
protected abstract Method getBindMethod(Class<?> clazz);
protected abstract Method getUnbindMethod(Class<?> clazz);
}