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ConfigInstanceListener.java
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ConfigInstanceListener.java
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/*
* Copyright (c) 2023 Contributors to the Eclipse Foundation
* Copyright (c) 2012, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.jvnet.hk2.config.provider.internal;
import jakarta.inject.Singleton;
import java.util.Map;
import org.glassfish.hk2.api.Filter;
import org.glassfish.hk2.api.Injectee;
import org.glassfish.hk2.api.InstanceLifecycleEvent;
import org.glassfish.hk2.api.InstanceLifecycleEventType;
import org.glassfish.hk2.api.InstanceLifecycleListener;
import org.glassfish.hk2.utilities.BuilderHelper;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.config.ConfigBeanProxy;
import org.jvnet.hk2.config.ConfigListener;
import org.jvnet.hk2.config.ConfigSupport;
import org.jvnet.hk2.config.ObservableBean;
/**
* @author jwells
*
*/
@Service @Singleton
public class ConfigInstanceListener implements InstanceLifecycleListener {
private final Filter filter = BuilderHelper.createContractFilter(ConfigListener.class.getName());
/* (non-Javadoc)
* @see org.glassfish.hk2.api.InstanceLifecycleListener#getFilter()
*/
@Override
public Filter getFilter() {
return filter;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.InstanceLifecycleListener#lifecycleEvent(org.glassfish.hk2.api.InstanceLifecycleEvent)
*/
@Override
public void lifecycleEvent(InstanceLifecycleEvent lifecycleEvent) {
if (!lifecycleEvent.getEventType().equals(InstanceLifecycleEventType.POST_PRODUCTION)) {
return;
}
Map<Injectee, Object> injectees = lifecycleEvent.getKnownInjectees();
if (injectees == null) {
return;
}
ConfigListener listener = (ConfigListener) lifecycleEvent.getLifecycleObject();
for (Object injectee : injectees.values()) {
if (!(injectee instanceof ConfigBeanProxy)) {
continue;
}
ConfigBeanProxy configBeanProxy = (ConfigBeanProxy) injectee;
Object impl = ConfigSupport.getImpl(configBeanProxy);
if (!(impl instanceof ObservableBean)) {
continue;
}
ObservableBean ob = (ObservableBean) impl;
ob.addListener(listener);
}
}
}