JaxRsClassesProviderTracker.java
/*
* #%L
* wcm.io
* %%
* Copyright (C) 2019 wcm.io
* %%
* Licensed 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
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package io.wcm.caravan.jaxrs.publisher.impl;
import static io.wcm.caravan.jaxrs.publisher.impl.ServletContainerBridge.isJaxRsGlobal;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import io.wcm.caravan.jaxrs.publisher.JaxRsClassesProvider;
/**
* Tracks {@link JaxRsClassesProvider} instances.
*/
class JaxRsClassesProviderTracker extends ServiceTracker<JaxRsClassesProvider, Object> {
private final ServletContainerBridge bridge;
private final BundleContext bundleContext;
private final Bundle bundle;
JaxRsClassesProviderTracker(ServletContainerBridge bridge) {
super(bridge.getBundleContext(), JaxRsClassesProvider.class, null);
this.bridge = bridge;
this.bundleContext = bridge.getBundleContext();
this.bundle = bridge.getBundle();
}
@Override
public Object addingService(ServiceReference<JaxRsClassesProvider> reference) {
if (isJaxRsGlobal(reference)) {
JaxRsClassesProvider serviceInstance = bundle.getBundleContext().getService(reference);
ServletContainerBridge.log.debug("Register global classes provider {} for {}", serviceInstance.getClass().getName(), bundle.getSymbolicName());
bridge.getGlobalClassesProviders().add(serviceInstance);
bridge.markAsDirty();
}
else if (reference.getBundle() == bundle) {
JaxRsClassesProvider serviceInstance = bundle.getBundleContext().getService(reference);
ServletContainerBridge.log.debug("Register classes provider {} for {}", serviceInstance.getClass().getName(), bundle.getSymbolicName());
bridge.getLocalClassesProviders().add(serviceInstance);
bridge.markAsDirty();
}
return super.addingService(reference);
}
@Override
public void removedService(ServiceReference<JaxRsClassesProvider> reference, Object service) {
if (isJaxRsGlobal(reference)) {
JaxRsClassesProvider serviceInstance = bundle.getBundleContext().getService(reference);
ServletContainerBridge.log.debug("Unregister global classes provider {} for {}", serviceInstance.getClass().getName(), bundle.getSymbolicName());
bridge.getGlobalClassesProviders().remove(serviceInstance);
bundleContext.ungetService(reference);
bridge.markAsDirty();
}
else if (reference.getBundle() == bundle) {
JaxRsClassesProvider serviceInstance = bundle.getBundleContext().getService(reference);
ServletContainerBridge.log.debug("Unregister classes provider {} for {}", serviceInstance.getClass().getName(), bundle.getSymbolicName());
bridge.getLocalClassesProviders().remove(serviceInstance);
bundleContext.ungetService(reference);
bridge.markAsDirty();
}
super.removedService(reference, service);
}
}