/*
* 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.jackrabbit.oak.osgi;
import javax.annotation.Nonnull;
import org.apache.jackrabbit.oak.spi.lifecycle.CompositeInitializer;
import org.apache.jackrabbit.oak.spi.lifecycle.RepositoryInitializer;
import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
import org.osgi.framework.ServiceReference;
/**
* Implements a service tracker that keeps track of all
* {@link RepositoryInitializer}s in the system and calls the available
* method once the micro kernel is available.
*/
public class OsgiRepositoryInitializer
extends AbstractServiceTracker<RepositoryInitializer>
implements RepositoryInitializer {
private RepositoryInitializerObserver observer;
public OsgiRepositoryInitializer() {
super(RepositoryInitializer.class);
}
@Override
public void initialize(@Nonnull NodeBuilder builder) {
new CompositeInitializer(getServices()).initialize(builder);
}
@Override
public Object addingService(ServiceReference reference) {
RepositoryInitializer ri = (RepositoryInitializer) super
.addingService(reference);
if (observer != null) {
observer.newRepositoryInitializer(ri);
}
return ri;
}
public void setObserver(RepositoryInitializerObserver observer) {
this.observer = observer;
}
interface RepositoryInitializerObserver {
void newRepositoryInitializer(RepositoryInitializer ri);
}
}