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package org.jvnet.hk2.config.provider.internal;
import java.util.Map;
import javax.inject.Singleton;
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);
}
}
}